subject:(Magnetite)

University of Arizona

1. Doan, Donald Jay, 1910-. The determination of magnetite in metallurgical products by an electromagnetic method .

Degree: 1932, University of Arizona

URL: http://hdl.handle.net/10150/553124

Subjects/Keywords: Magnetite.

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Doan, Donald Jay, 1. (1932). The determination of magnetite in metallurgical products by an electromagnetic method . (Masters Thesis). University of Arizona. Retrieved from http://hdl.handle.net/10150/553124

Chicago Manual of Style (16^th Edition):

Doan, Donald Jay, 1910-. “The determination of magnetite in metallurgical products by an electromagnetic method .” 1932. Masters Thesis, University of Arizona. Accessed January 21, 2020. http://hdl.handle.net/10150/553124.

MLA Handbook (7^th Edition):

Doan, Donald Jay, 1910-. “The determination of magnetite in metallurgical products by an electromagnetic method .” 1932. Web. 21 Jan 2020.

Vancouver:

Doan, Donald Jay 1. The determination of magnetite in metallurgical products by an electromagnetic method . [Internet] [Masters thesis]. University of Arizona; 1932. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/10150/553124.

Council of Science Editors:

Doan, Donald Jay 1. The determination of magnetite in metallurgical products by an electromagnetic method . [Masters Thesis]. University of Arizona; 1932. Available from: http://hdl.handle.net/10150/553124

Rhodes University

2. Modisha, Phillimon Mokanne. Fabrication, characterization and application of phthalocyanine-magnetite hybrid nanofibers.

Degree: Faculty of Science, Chemistry, 2014, Rhodes University

URL: http://hdl.handle.net/10962/d1013223

► Magnetic nanoparticles comprising magnetite (Fe3O4) were functionalized with 3-aminopropyl-triethoxysilane forming amino functionalized magnetite nanoparticles (AMNPs). The amino group allows for conjugation with zinc octacarboxyphthalocyanine (ZnOCPc)… (more)

Subjects/Keywords: Nanofibers; Nanoparticles; Magnetite

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Modisha, P. M. (2014). Fabrication, characterization and application of phthalocyanine-magnetite hybrid nanofibers. (Thesis). Rhodes University. Retrieved from http://hdl.handle.net/10962/d1013223

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Modisha, Phillimon Mokanne. “Fabrication, characterization and application of phthalocyanine-magnetite hybrid nanofibers.” 2014. Thesis, Rhodes University. Accessed January 21, 2020. http://hdl.handle.net/10962/d1013223.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Modisha, Phillimon Mokanne. “Fabrication, characterization and application of phthalocyanine-magnetite hybrid nanofibers.” 2014. Web. 21 Jan 2020.

Vancouver:

Modisha PM. Fabrication, characterization and application of phthalocyanine-magnetite hybrid nanofibers. [Internet] [Thesis]. Rhodes University; 2014. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/10962/d1013223.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Modisha PM. Fabrication, characterization and application of phthalocyanine-magnetite hybrid nanofibers. [Thesis]. Rhodes University; 2014. Available from: http://hdl.handle.net/10962/d1013223

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of North Texas

3. Phadnis, Ameya. Corrosion Protection of Low Carbon Steel By Cation Substituted Magnetite.

Degree: 2013, University of North Texas

URL: https://digital.library.unt.edu/ark:/67531/metadc271878/

► Surfaces of low carbon steel sheet were modified by exposure to highly caustic aqueous solutions containing either chromium or aluminum cations. Corrosion resistances of such… (more)

Subjects/Keywords: Cation; substituted; magnetite

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Phadnis, A. (2013). Corrosion Protection of Low Carbon Steel By Cation Substituted Magnetite. (Thesis). University of North Texas. Retrieved from https://digital.library.unt.edu/ark:/67531/metadc271878/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Phadnis, Ameya. “Corrosion Protection of Low Carbon Steel By Cation Substituted Magnetite.” 2013. Thesis, University of North Texas. Accessed January 21, 2020. https://digital.library.unt.edu/ark:/67531/metadc271878/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Phadnis, Ameya. “Corrosion Protection of Low Carbon Steel By Cation Substituted Magnetite.” 2013. Web. 21 Jan 2020.

Vancouver:

Phadnis A. Corrosion Protection of Low Carbon Steel By Cation Substituted Magnetite. [Internet] [Thesis]. University of North Texas; 2013. [cited 2020 Jan 21]. Available from: https://digital.library.unt.edu/ark:/67531/metadc271878/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Phadnis A. Corrosion Protection of Low Carbon Steel By Cation Substituted Magnetite. [Thesis]. University of North Texas; 2013. Available from: https://digital.library.unt.edu/ark:/67531/metadc271878/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Alberta

4. Davies, Joshua. Re-Os geochronology of oxide minerals.

Degree: MS, Department of Earth and Atmospheric Sciences, 2010, University of Alberta

URL: https://era.library.ualberta.ca/files/tq57ns675

► 187Re-187Os analysis of magnetite and other oxide minerals from various well dated geological settings (kimberlites, lamprophyres, Manicouagan impact melt rock, Great Bear magmatic zone iron… (more)

Subjects/Keywords: Kimberlite; Geochronology; Re-Os; Magnetite

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Davies, J. (2010). Re-Os geochronology of oxide minerals. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/tq57ns675

Chicago Manual of Style (16^th Edition):

Davies, Joshua. “Re-Os geochronology of oxide minerals.” 2010. Masters Thesis, University of Alberta. Accessed January 21, 2020. https://era.library.ualberta.ca/files/tq57ns675.

MLA Handbook (7^th Edition):

Davies, Joshua. “Re-Os geochronology of oxide minerals.” 2010. Web. 21 Jan 2020.

Vancouver:

Davies J. Re-Os geochronology of oxide minerals. [Internet] [Masters thesis]. University of Alberta; 2010. [cited 2020 Jan 21]. Available from: https://era.library.ualberta.ca/files/tq57ns675.

Council of Science Editors:

Davies J. Re-Os geochronology of oxide minerals. [Masters Thesis]. University of Alberta; 2010. Available from: https://era.library.ualberta.ca/files/tq57ns675

University of Illinois – Urbana-Champaign

5. Grimm, Theodore. Isotopic study of uranium: determining the isotopic fractionation of uranium during abiotic reduction with iron(II).

Degree: MS, 0336, 2015, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/73101

► Uranium is a contaminant of interest due to its toxicity and mobility in groundwater. It is a redox active element in which the oxidation state… (more)

▼ Uranium is a contaminant of interest due to its toxicity and mobility in groundwater. It is a redox active element in which the oxidation state can change by the addition or removal of electrons. In one method of groundwater remediation, mobile, hexavalent uranium (U(VI)) can be reduced to immobile, tetravalent uranium (U(IV)) by microbial or abiotic chemical reactions. Unfortunately, due to uranium’s complex geochemistry, measuring concentrations does not reliably give an accurate indicator of the efficiency of removal. However, uranium isotope ratios can provide a direct way to track the extent of reduction. At the Old Rifle site (Colorado, USA), reduction of U(VI) to U(IV) was induced via injections of acetate to stimulate microbial activity. A decrease of ~1‰ in the 238U/235U ratio of the dissolved U(VI) was observed and correlated closely to the decrease in concentration (Bopp et al., 2010). However, the primary mechanism of chemical reduction, microbial or abiotic, is still not well understood. Microbial laboratory experiments observed a shift of 1-2‰ in 238U/235U during reduction experiments with multiple bacterial strains (Basu et al., 2014). Little work has been done to determine the isotopic fractionation induced by abiotic reduction. This study focuses on determining the isotopic fractionation of uranium during reduction with Fe(II). Time series experiments with aqueous Fe(II) and magnetite (Fe3O4) were conducted with samples analyzed by a MC-ICP-MS. We find aqueous Fe(II) has a limited ability to reduce U(VI) and no isotopic data is reported. Stoichiometric magnetite (χ=0.49) reduces U(VI) to U(VI) completely and rapidly as confirmed by XANES analysis, but induces no shift in 238U/235U. This finding matches results observed in three other studies (Rademacher et al, 2006; Stirling et al., 2007; Stylo et al., 2014) where abiotic reduction does not induce isotopic fractionation. Advisors/Committee Members: Johnson, Thomas M. (advisor).

Subjects/Keywords: Uranium; Isotope; Magnetite; Reduction

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Grimm, T. (2015). Isotopic study of uranium: determining the isotopic fractionation of uranium during abiotic reduction with iron(II). (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/73101

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Grimm, Theodore. “Isotopic study of uranium: determining the isotopic fractionation of uranium during abiotic reduction with iron(II).” 2015. Thesis, University of Illinois – Urbana-Champaign. Accessed January 21, 2020. http://hdl.handle.net/2142/73101.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Grimm, Theodore. “Isotopic study of uranium: determining the isotopic fractionation of uranium during abiotic reduction with iron(II).” 2015. Web. 21 Jan 2020.

Vancouver:

Grimm T. Isotopic study of uranium: determining the isotopic fractionation of uranium during abiotic reduction with iron(II). [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2015. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/2142/73101.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Grimm T. Isotopic study of uranium: determining the isotopic fractionation of uranium during abiotic reduction with iron(II). [Thesis]. University of Illinois – Urbana-Champaign; 2015. Available from: http://hdl.handle.net/2142/73101

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

McGill University

6. Jue, Bruce Cameron. Oxidation of magnetite.

Degree: PhD, Department of Metallurgical Engineering., 1967, McGill University

URL: http://digitool.library.mcgill.ca/thesisfile70103.pdf

Subjects/Keywords: Magnetite; Oxidation

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jue, B. C. (1967). Oxidation of magnetite. (Doctoral Dissertation). McGill University. Retrieved from http://digitool.library.mcgill.ca/thesisfile70103.pdf

Chicago Manual of Style (16^th Edition):

Jue, Bruce Cameron. “Oxidation of magnetite.” 1967. Doctoral Dissertation, McGill University. Accessed January 21, 2020. http://digitool.library.mcgill.ca/thesisfile70103.pdf.

MLA Handbook (7^th Edition):

Jue, Bruce Cameron. “Oxidation of magnetite.” 1967. Web. 21 Jan 2020.

Vancouver:

Jue BC. Oxidation of magnetite. [Internet] [Doctoral dissertation]. McGill University; 1967. [cited 2020 Jan 21]. Available from: http://digitool.library.mcgill.ca/thesisfile70103.pdf.

Council of Science Editors:

Jue BC. Oxidation of magnetite. [Doctoral Dissertation]. McGill University; 1967. Available from: http://digitool.library.mcgill.ca/thesisfile70103.pdf

Virginia Tech

7. Zhang, Rui. Ionic Copolymer-Magnetite Complexes for Magnetic Resonance Imaging and Drug Delivery.

Degree: MS, Chemistry, 2015, Virginia Tech

URL: http://hdl.handle.net/10919/73648

► This thesis is focused on the design, synthesis and characterization of magnetite-ionic copolymer complexes as nanocarriers for drug delivery and magnetic resonance imaging. The polymers… (more)

▼ This thesis is focused on the design, synthesis and characterization of magnetite-ionic copolymer complexes as nanocarriers for drug delivery and magnetic resonance imaging. The polymers included phosphonate and carboxylate-containing graft and block copolymers. Oleic-acid coated magnetite nanoparticles (8-nm and 16-nm diameters) were investigated. Cisplatin and carboplatin were used as sample drugs. The potentials of the magnetite-ionomer complexes as dual drug delivery carriers and magnetic resonance imaging agents were evaluated. An acrylate-functional poly(ethylene oxide) macromonomer and hexyl (and propyl) ammonium bisphosphonate methacrylate monomers were synthesized. Conventional free radical copolymerizations were conducted to synthesize the graft copolymers. The acrylate-functional poly(ethylene oxide) macromonomer was also used to form graft copolymers with tert-butyl acrylate. Block ionomers containing poly(tert-butyl acrylate) were synthesized via atom transfer radical polymerization, then the tert-butyl groups were removed to afford anions. All the monomers and polymers were characterized by 1H NMR to confirm their structures and assess their compositions. Phosphonate-containing polymers were also characterized by 31P NMR. Magnetite nanoparticles (8-nm diameter) were synthesized by reducing Fe(acac)3 with benzyl alcohol. The 16-nm diameter magnetite was synthesized by thermal decomposition of an iron oleate precursor in trioctylamine as a high-boiling solvent. The iron-oleate precursor was synthesized with iron (III) chloride hexahydrate and sodium oleate with mixed solvents. TEM images of the magnetite were obtained. Magnetite-ionomer complexes were synthesized by binding a portion of the anions (carboxylate or phosphonate) on the copolymers onto the surfaces the magnetite. The remainder of the anions was used to bind with cisplatin and carboplatin via chelation. Physicochemical properties of the complexes were measured by dynamic light scattering. All the complexes with different polymers and magnetite nanoparticles displayed relatively uniform sizes and good size distributions. The magnetite-ionomer complexes displayed good colloidal stabilities in simulated physiological conditions for at least 24 hours. Those graft and block copolymer-magnetite complexes may be good candidates as drug carriers for delivery applications. After cisplatin and carboplatin loading, the sizes of the complexes increased slightly and the zeta potential decreased slightly, which indicated that the loadings were successful. Minimal loss of iron was found, signaling that the binding strengths between the magnetite and the anions of the graft copolymers were strong. 8.7 wt% of platinum was found in the cisplatin loaded complexes and 6.9% in the carboplatin loaded complexes. The results indicated that the magnetite-graft ionomer complexes were capable of loading drugs. Drug release studies were performed at pH 4.6 and 7.4 to mimick endosomal conditions and the physiological environment. Sustained release… Advisors/Committee Members: Riffle, Judy S. (committeechair), Davis, Richey M. (committee member), Turner, Sam Richard (committee member).

Subjects/Keywords: ionomer; magnetite; bisphosphonate; contrast enhancement

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zhang, R. (2015). Ionic Copolymer-Magnetite Complexes for Magnetic Resonance Imaging and Drug Delivery. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/73648

Chicago Manual of Style (16^th Edition):

Zhang, Rui. “Ionic Copolymer-Magnetite Complexes for Magnetic Resonance Imaging and Drug Delivery.” 2015. Masters Thesis, Virginia Tech. Accessed January 21, 2020. http://hdl.handle.net/10919/73648.

MLA Handbook (7^th Edition):

Zhang, Rui. “Ionic Copolymer-Magnetite Complexes for Magnetic Resonance Imaging and Drug Delivery.” 2015. Web. 21 Jan 2020.

Vancouver:

Zhang R. Ionic Copolymer-Magnetite Complexes for Magnetic Resonance Imaging and Drug Delivery. [Internet] [Masters thesis]. Virginia Tech; 2015. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/10919/73648.

Council of Science Editors:

Zhang R. Ionic Copolymer-Magnetite Complexes for Magnetic Resonance Imaging and Drug Delivery. [Masters Thesis]. Virginia Tech; 2015. Available from: http://hdl.handle.net/10919/73648

University of Alberta

8. Mann, Ajaypal S. Removal of model waste-water bacteria by magnetite in water and waste-water treatment processes.

Degree: MS, Department of Civil and Environmental Engineering, 2012, University of Alberta

URL: https://era.library.ualberta.ca/files/jq085k29f

► Conventional disinfection processes used for water and waste-water treatment such as chlorination, and ozonation produce disinfection by products which are carcinogenic. The use of magnetite… (more)

Subjects/Keywords: Water treatment; Magnetite; Wastewater treatment; Bacteria; disinfection

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mann, A. S. (2012). Removal of model waste-water bacteria by magnetite in water and waste-water treatment processes. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/jq085k29f

Chicago Manual of Style (16^th Edition):

Mann, Ajaypal S. “Removal of model waste-water bacteria by magnetite in water and waste-water treatment processes.” 2012. Masters Thesis, University of Alberta. Accessed January 21, 2020. https://era.library.ualberta.ca/files/jq085k29f.

MLA Handbook (7^th Edition):

Mann, Ajaypal S. “Removal of model waste-water bacteria by magnetite in water and waste-water treatment processes.” 2012. Web. 21 Jan 2020.

Vancouver:

Mann AS. Removal of model waste-water bacteria by magnetite in water and waste-water treatment processes. [Internet] [Masters thesis]. University of Alberta; 2012. [cited 2020 Jan 21]. Available from: https://era.library.ualberta.ca/files/jq085k29f.

Council of Science Editors:

Mann AS. Removal of model waste-water bacteria by magnetite in water and waste-water treatment processes. [Masters Thesis]. University of Alberta; 2012. Available from: https://era.library.ualberta.ca/files/jq085k29f

Stellenbosch University

9. Van Laeren, Laura Jane. Investigation of thiazyl radical – metalloporphyrin complexes.

Degree: PhD, Chemistry and Polymer Science, 2017, Stellenbosch University

URL: http://hdl.handle.net/10019.1/101402

► ENGLISH ABSTRACT: The aim of this project was to investigate the formation of novel dithiadiazolyl-metalloporphyrin complexes with the goal of forming complexes with interesting magnetic,… (more)

▼ ENGLISH ABSTRACT: The aim of this project was to investigate the formation of novel dithiadiazolyl-metalloporphyrin complexes with the goal of forming complexes with interesting magnetic, conductive or redox behaviour. The crystal structure of one such dithiadiazolyl radical – metalloporphyrin complex, containing 4-(4′-pyridyl)-1,2,3,5-dithiadiazolyl and cobalt (II) tetraphenylporphyrin, was determined through the use of single crystal X-ray diffraction. The complex crystallizes as a coordination polymer, with each dithiadiazolyl radical bridging two cobalt porphyrins via a dithiadiazolyl sulfur atom and the pyridyl nitrogen. The sulfur-sulfur bond remains intact and is unusually long; it is proposed that this is as a result of delocalisation of the unpaired electron from the cobalt ion to the dithiadiazolyl radical, resulting in partial oxidation of the Co(II) centre with associated partial reduction of the dithiadiazolyl radical to a dithiadiazolide anion. This is only the third example of an isolated dithiadiazolyl anion. In solution, initial coordination occurs through the dithiadiazolyl sulfur atom. Following dissolution, the nitrogen-bound species predominates. Ligand-metalloporphyrin association was studied in solution through the use of ultraviolet-visible spectroscopy and a logβ value of 4.19 ± 0.05 in dichloromethane at 25 °C was determined. The interaction between a range of eight dithiadiazolyl radicals and three different cobalt porphyrins was subsequently studied spectroscopically. It was found that changing the substituents on the dithiadiazolyl radical has a limited effect on the strength of coordination, while changing the substituents on the porphyrin has a far greater effect. When electron-donating substituents were added, logβ values were higher than for the parent porphyrin while electron-withdrawing substituents resulted in lower logβ values with respect to any of the dithiadiazolyl ligands. Electrostatic potential maps were generated to provide further insight into the electron density across the eight dithiadiazolyl radicals and confirmed that the substituents had a negligible effect on the coordinating sulfur atoms, rationalising the spectrophotometric observations. Coordination of dithiadiazolyl radicals to cobalt, copper, iron and zinc porphyrins was reported, with negligible interaction with magnesium. Coordination to copper and iron was weaker than for cobalt, while coordination to zinc was stronger. The choice of metal affects the magnetic behaviour of the complexes. Coordination to a paramagnetic metal centre, such as cobalt, copper and iron, results in a diamagnetic complex, while coordination to the diamagnetic zinc leads to paramagnetic complexes. These zinc complexes associate at high concentration, leading to loss of paramagnetism. Finally, coordination of dithiadiazolyl radicals to haematin, an iron-containing biological metalloporphyrin, was investigated in order to illustrate a potential application of these dithiadiazolyl complexes to the… Advisors/Committee Members: Haynes, Delia A., De Villiers, Katherine A., Stellenbosch University. Faculty of Science. Dept. of Chemistry and Polymer Science..

Subjects/Keywords: Dithiadiazolyl complexes; Metalloporphyrin; Magnetite crystals; UCTD

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Van Laeren, L. J. (2017). Investigation of thiazyl radical – metalloporphyrin complexes. (Doctoral Dissertation). Stellenbosch University. Retrieved from http://hdl.handle.net/10019.1/101402

Chicago Manual of Style (16^th Edition):

Van Laeren, Laura Jane. “Investigation of thiazyl radical – metalloporphyrin complexes.” 2017. Doctoral Dissertation, Stellenbosch University. Accessed January 21, 2020. http://hdl.handle.net/10019.1/101402.

MLA Handbook (7^th Edition):

Van Laeren, Laura Jane. “Investigation of thiazyl radical – metalloporphyrin complexes.” 2017. Web. 21 Jan 2020.

Vancouver:

Van Laeren LJ. Investigation of thiazyl radical – metalloporphyrin complexes. [Internet] [Doctoral dissertation]. Stellenbosch University; 2017. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/10019.1/101402.

Council of Science Editors:

Van Laeren LJ. Investigation of thiazyl radical – metalloporphyrin complexes. [Doctoral Dissertation]. Stellenbosch University; 2017. Available from: http://hdl.handle.net/10019.1/101402

Virginia Tech

10. Rebodos, Robert Louie Fermo. Implications of Oxidation on the Colloidal Stability of Magnetite Nanoparticles and Cluster.

Degree: PhD, Civil Engineering, 2010, Virginia Tech

URL: http://hdl.handle.net/10919/77117

► Synthetic nanomagnetite has been suggested as a potential reactant for the in-situ treatment of contaminated groundwater. Although the application of nanomagnetite for environmental remediation is… (more)

Subjects/Keywords: Maghemite; Sedimentation; Cluster-cluster aggregation; Magnetite; Oxidation

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Rebodos, R. L. F. (2010). Implications of Oxidation on the Colloidal Stability of Magnetite Nanoparticles and Cluster. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/77117

Chicago Manual of Style (16^th Edition):

Rebodos, Robert Louie Fermo. “Implications of Oxidation on the Colloidal Stability of Magnetite Nanoparticles and Cluster.” 2010. Doctoral Dissertation, Virginia Tech. Accessed January 21, 2020. http://hdl.handle.net/10919/77117.

MLA Handbook (7^th Edition):

Rebodos, Robert Louie Fermo. “Implications of Oxidation on the Colloidal Stability of Magnetite Nanoparticles and Cluster.” 2010. Web. 21 Jan 2020.

Vancouver:

Rebodos RLF. Implications of Oxidation on the Colloidal Stability of Magnetite Nanoparticles and Cluster. [Internet] [Doctoral dissertation]. Virginia Tech; 2010. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/10919/77117.

Council of Science Editors:

Rebodos RLF. Implications of Oxidation on the Colloidal Stability of Magnetite Nanoparticles and Cluster. [Doctoral Dissertation]. Virginia Tech; 2010. Available from: http://hdl.handle.net/10919/77117

University of British Columbia

11. Cann, Robert Michael. Geochemistry of magnetite and the genesis of magnetite-apatite lodes in the iron mask batholith, British Columbia .

Degree: 1979, University of British Columbia

URL: http://hdl.handle.net/2429/21560

► Magnetite-apatite lodes, in the Upper Triassic Iron Mask batholith, south-central British Columbia, are tabular bodies up to 200 m long and 6 m wide which… (more)

▼ Magnetite-apatite lodes, in the Upper Triassic Iron Mask batholith, south-central British Columbia, are tabular bodies up to 200 m long and 6 m wide which consist of 50 to 90 percent magnetite, 10 to 40 percent apatite and variable amounts of amphibole. Lodes occur in close spatial association with alkaline "porphyry-type" copper mineralization, disseminated-magnetite rich diorite and late syenitic units. To aid in determining the genesis of these lodes 84 samples of lode magnetite and disseminated magnetite from dioritic, syenitic and picritic units of the batholith were analyzed by atomic absorption spectrophotometry for: chromium, cobalt, copper, lead, magnesium, manganese, nickel, titanium, vanadium and zinc, fourteen samples were also analyzed for major and minor oxides by electron microprobe. Minor element data indicates a magmatic-injection origin for the lodes; magnetite being concentrated by immiscibility between magnetite-apatite and an alkalic magma. With the exception of copper and lead, minor element variations in magnetite due to sampling error and analytical variations are insignificant relative to between and within rock unit variations, as revealed by analysis of variance. Disseminated magnetite from picrite has high and distinctive contents of chromium, magnesium, nickel and zinc relative to disseminated magnetite in syenite and diorite. Minor element concentrations in disseminated magnetite from syenite and diorite are very similar statistically. Lode magnetite, compared to disseminated magnetite from diorite and syenite, is markedly lower in chromium and less so in titanium and vanadium, however other elements occur in statistically similar concentrations.. Minor element concentrations in magnetite from Iron Mask lodes are statistically the same as those in magnetite from magmatic iron deposits in Kiruna, Sweden and Missouri, U.S.A. Magnetite from hydrothermal vein and metasomatic deposits has lower chromium and nickel contents than Iron Mask lode magnetite. Geochemical evidence presented here suggests that Iron Mask lodes are: 1) genetically related to the Cherry Creek syenite and Pothook diorite units of the Iron Mask batholith, and 2) magmatically emplaced based on analogy to Kiruna and Missouri ores. Experimental documentation of immiscibility between a magnetite-apatite melt and a silicate magma allows a model to be developed that describes the genesis of the Iron Mask batholith. and associated magnetite-apatite lodes. Crystal settling of plagioclase and pyroxene from the Iron Mask magma fromed the early. Pothook diorite and enriched the residual magma in iron and alkaliis. The magma also differentiated toward the experimentally determined magnetite-apatite eutectic composition-(i.e. 20 to 35 weight percent apatite in total magnetite plus apatite). When the eutectic was reached after crystallization of Pothgok diorite, (just before the Cherry Creek syenite started to crystallize) magnetite and apatite separated together from the silicate magma as an immiscible melt, and settled to the base…

Subjects/Keywords: Magnetite – British Columbia

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Cann, R. M. (1979). Geochemistry of magnetite and the genesis of magnetite-apatite lodes in the iron mask batholith, British Columbia . (Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/21560

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Cann, Robert Michael. “Geochemistry of magnetite and the genesis of magnetite-apatite lodes in the iron mask batholith, British Columbia .” 1979. Thesis, University of British Columbia. Accessed January 21, 2020. http://hdl.handle.net/2429/21560.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Cann, Robert Michael. “Geochemistry of magnetite and the genesis of magnetite-apatite lodes in the iron mask batholith, British Columbia .” 1979. Web. 21 Jan 2020.

Vancouver:

Cann RM. Geochemistry of magnetite and the genesis of magnetite-apatite lodes in the iron mask batholith, British Columbia . [Internet] [Thesis]. University of British Columbia; 1979. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/2429/21560.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Cann RM. Geochemistry of magnetite and the genesis of magnetite-apatite lodes in the iron mask batholith, British Columbia . [Thesis]. University of British Columbia; 1979. Available from: http://hdl.handle.net/2429/21560

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waikato

12. O'Shea, Benjamin. The preparation of fluorescent fingerprinting powders using 8-hydroxyquinoline compounds and magnetite .

Degree: 2018, University of Waikato

URL: http://hdl.handle.net/10289/12287

► Fluorescent fingerprinting powders were prepared by using rotary evaporation to coat magnetite powder with varying amounts of either tris(8-hydroxyquinolinato)aluminium (Alq₃), tris(8-hydroxyquinolinato)gallium (Gaq₃), bis(8-hydroxyquinolinato)magnesium (Mgq₂) or… (more)

Subjects/Keywords: Fingerprint; Fluorescent; 8-Hydroxyquinoline; Hydroxyquinoline; Magnetite; Alq₃

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

O'Shea, B. (2018). The preparation of fluorescent fingerprinting powders using 8-hydroxyquinoline compounds and magnetite . (Masters Thesis). University of Waikato. Retrieved from http://hdl.handle.net/10289/12287

Chicago Manual of Style (16^th Edition):

O'Shea, Benjamin. “The preparation of fluorescent fingerprinting powders using 8-hydroxyquinoline compounds and magnetite .” 2018. Masters Thesis, University of Waikato. Accessed January 21, 2020. http://hdl.handle.net/10289/12287.

MLA Handbook (7^th Edition):

O'Shea, Benjamin. “The preparation of fluorescent fingerprinting powders using 8-hydroxyquinoline compounds and magnetite .” 2018. Web. 21 Jan 2020.

Vancouver:

O'Shea B. The preparation of fluorescent fingerprinting powders using 8-hydroxyquinoline compounds and magnetite . [Internet] [Masters thesis]. University of Waikato; 2018. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/10289/12287.

Council of Science Editors:

O'Shea B. The preparation of fluorescent fingerprinting powders using 8-hydroxyquinoline compounds and magnetite . [Masters Thesis]. University of Waikato; 2018. Available from: http://hdl.handle.net/10289/12287

University of Toronto

13. Foroozan Ebrahimy, Amirhossein. Electrochemical Study of the Effects of Sulfur and Lead Relevant to Nuclear Steam Generators.

Degree: 2017, University of Toronto

URL: http://hdl.handle.net/1807/79125

►

Steam Generators contain crevices at tube surfaces where they contact tubesheets, in which solids accumulate. Within this matrix there are elusive effects of impurities including… (more)

Subjects/Keywords: Adsorption; Corrosion; Lead; Magnetite; Nickel; Sulfur; 0794

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Foroozan Ebrahimy, A. (2017). Electrochemical Study of the Effects of Sulfur and Lead Relevant to Nuclear Steam Generators. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/79125

Chicago Manual of Style (16^th Edition):

Foroozan Ebrahimy, Amirhossein. “Electrochemical Study of the Effects of Sulfur and Lead Relevant to Nuclear Steam Generators.” 2017. Masters Thesis, University of Toronto. Accessed January 21, 2020. http://hdl.handle.net/1807/79125.

MLA Handbook (7^th Edition):

Foroozan Ebrahimy, Amirhossein. “Electrochemical Study of the Effects of Sulfur and Lead Relevant to Nuclear Steam Generators.” 2017. Web. 21 Jan 2020.

Vancouver:

Foroozan Ebrahimy A. Electrochemical Study of the Effects of Sulfur and Lead Relevant to Nuclear Steam Generators. [Internet] [Masters thesis]. University of Toronto; 2017. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/1807/79125.

Council of Science Editors:

Foroozan Ebrahimy A. Electrochemical Study of the Effects of Sulfur and Lead Relevant to Nuclear Steam Generators. [Masters Thesis]. University of Toronto; 2017. Available from: http://hdl.handle.net/1807/79125

University of Tennessee – Knoxville

14. Hah, Hien-Yoong. Mössbauer Spectroscopy of Iron Oxide Nanoparticles: Materials for Biomedical Applications.

Degree: 2018, University of Tennessee – Knoxville

URL: https://trace.tennessee.edu/utk_graddiss/5232

► Nanoparticles of Fe3O4 (magnetite) and gamma-Fe2O3 (maghemite) have been studied by Mössbauer spectroscopy. These nanoparticles have applications as contrast agents for Magnetic Resonance Imaging. At… (more)

Subjects/Keywords: Mossbauer; nanoparticles; mri; superparmagnet; stoichiometry; relaxation; magnetite

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hah, H. (2018). Mössbauer Spectroscopy of Iron Oxide Nanoparticles: Materials for Biomedical Applications. (Doctoral Dissertation). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_graddiss/5232

Chicago Manual of Style (16^th Edition):

Hah, Hien-Yoong. “Mössbauer Spectroscopy of Iron Oxide Nanoparticles: Materials for Biomedical Applications.” 2018. Doctoral Dissertation, University of Tennessee – Knoxville. Accessed January 21, 2020. https://trace.tennessee.edu/utk_graddiss/5232.

MLA Handbook (7^th Edition):

Hah, Hien-Yoong. “Mössbauer Spectroscopy of Iron Oxide Nanoparticles: Materials for Biomedical Applications.” 2018. Web. 21 Jan 2020.

Vancouver:

Hah H. Mössbauer Spectroscopy of Iron Oxide Nanoparticles: Materials for Biomedical Applications. [Internet] [Doctoral dissertation]. University of Tennessee – Knoxville; 2018. [cited 2020 Jan 21]. Available from: https://trace.tennessee.edu/utk_graddiss/5232.

Council of Science Editors:

Hah H. Mössbauer Spectroscopy of Iron Oxide Nanoparticles: Materials for Biomedical Applications. [Doctoral Dissertation]. University of Tennessee – Knoxville; 2018. Available from: https://trace.tennessee.edu/utk_graddiss/5232

University of British Columbia

15. Sangster, Donald Frederick. The contact metasomatic magnetite deposits of southwestern British Columbia .

Degree: 1964, University of British Columbia

URL: http://hdl.handle.net/2429/38943

► Ore zones, skarn, host rocks, and associated intrusions of 12 magnetite deposits were studied in both field and laboratory to determine their mineralogical and geochemical… (more)

▼ Ore zones, skarn, host rocks, and associated intrusions of 12 magnetite deposits were studied in both field and laboratory to determine their mineralogical and geochemical characteristics, origin of the iron, and factors controlling emplacement of iron-bearing minerals. This study seeks a better understanding of the origin and mode of occurrence of contact metasomatic magnetite deposits which in turn may provide better guides to their exploration and evaluation. Local folds and faults are important factors in the explacement of magnetite in volcanic rocks and limestone of the Vancouver group. Adjacent stocks are of intermediate composition. Post-ore leucodiorite dykes are common in many orebodies . The author proposes that the process by which skarn is formed be called skarnification i.e. the replacement by, conversion into, or introduction of skarn. The term would include all processes by which skarn may be formed such as contact metamorphism, contact metasomatism, or regional metamorphism. Skarn in the coastal British Columbia region is composed mainly of garnet (andradite-grossularite), pyroxene (diopside-hedenbergite), epidote, and magnetite. Conformity to Gibbs Phase Rule and the non-appearance of incompatible phases is strong evidence that equilibrium was attained during skarnification. Magnetite is the major metallic mineral, but chalcopyrite, pyrite, pyrrhotite, and arsenopyrite are locally abundant. The temperature of intrusion is estimated to be in the range 800-900°C and stability relations of coexisting minerals indicate a temperature of 700- 550°C daring skarnification. The pyrite-pyrrhotite geothermometer applied to eight specimens shows that ore deposition, took place within the temperature range 400-550°C. The composition of arsenopyrite coexisting with pyrite and pyrrbotite in one orebody indicates a confining pressure of 2600± 1,000 bars during ore formation. The immediate source of iron in these deposits is believed to be nearby intrusions. The ultimate source, however, is very probably underlying volcanic rocks which have been assimilated, in part, by an advancing pluton. Iron is considered to have been derived from plutons adjacent to the orebodies and to have been carried to the sites of deposition as aqueous supercritical solutions of iron chloride. Magnetite was precipitated from the ore-forming fluid by an increase in pH brought about by reaction with limestone. Changes in the chemical and physical nature of the ore-forming fluid during ore deposition are discussed in terms of temperature, density, pH, partial pressures of oxygen and sulphur, and composition. Hydrothermal processes operative in formation of the deposits were solvate opposition, metasomatism, and cavity filling

Subjects/Keywords: Magnetite – British Columbia.

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sangster, D. F. (1964). The contact metasomatic magnetite deposits of southwestern British Columbia . (Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/38943

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sangster, Donald Frederick. “The contact metasomatic magnetite deposits of southwestern British Columbia .” 1964. Thesis, University of British Columbia. Accessed January 21, 2020. http://hdl.handle.net/2429/38943.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sangster, Donald Frederick. “The contact metasomatic magnetite deposits of southwestern British Columbia .” 1964. Web. 21 Jan 2020.

Vancouver:

Sangster DF. The contact metasomatic magnetite deposits of southwestern British Columbia . [Internet] [Thesis]. University of British Columbia; 1964. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/2429/38943.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sangster DF. The contact metasomatic magnetite deposits of southwestern British Columbia . [Thesis]. University of British Columbia; 1964. Available from: http://hdl.handle.net/2429/38943

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Wichita State University

16. Abedin, Farhana. Magnetic and albumin targeted drug delivery for breast cancer treatment .

Degree: 2011, Wichita State University

URL: http://hdl.handle.net/10057/5054

► This research work involves multifunctional magnetically targeted drug delivery microspheres for treatment against breast cancer. A combination therapy approach was followed by encapsulating two chemotherapeutics,… (more)

Subjects/Keywords: Targeted drug delivery; Magnetite nanoparticle; Breast cancer

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Abedin, F. (2011). Magnetic and albumin targeted drug delivery for breast cancer treatment . (Masters Thesis). Wichita State University. Retrieved from http://hdl.handle.net/10057/5054

Chicago Manual of Style (16^th Edition):

Abedin, Farhana. “Magnetic and albumin targeted drug delivery for breast cancer treatment .” 2011. Masters Thesis, Wichita State University. Accessed January 21, 2020. http://hdl.handle.net/10057/5054.

MLA Handbook (7^th Edition):

Abedin, Farhana. “Magnetic and albumin targeted drug delivery for breast cancer treatment .” 2011. Web. 21 Jan 2020.

Vancouver:

Abedin F. Magnetic and albumin targeted drug delivery for breast cancer treatment . [Internet] [Masters thesis]. Wichita State University; 2011. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/10057/5054.

Council of Science Editors:

Abedin F. Magnetic and albumin targeted drug delivery for breast cancer treatment . [Masters Thesis]. Wichita State University; 2011. Available from: http://hdl.handle.net/10057/5054

Michigan State University

17. Sanderson, Dewey Dennis, 1942-. Magnetic minerals and properties of the Melrose Stock.

Degree: PhD, Department of Geology, 1972, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:36363

Subjects/Keywords: Petrology – Nevada; Magnetite

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sanderson, Dewey Dennis, 1. (1972). Magnetic minerals and properties of the Melrose Stock. (Doctoral Dissertation). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:36363

Chicago Manual of Style (16^th Edition):

Sanderson, Dewey Dennis, 1942-. “Magnetic minerals and properties of the Melrose Stock.” 1972. Doctoral Dissertation, Michigan State University. Accessed January 21, 2020. http://etd.lib.msu.edu/islandora/object/etd:36363.

MLA Handbook (7^th Edition):

Sanderson, Dewey Dennis, 1942-. “Magnetic minerals and properties of the Melrose Stock.” 1972. Web. 21 Jan 2020.

Vancouver:

Sanderson, Dewey Dennis 1. Magnetic minerals and properties of the Melrose Stock. [Internet] [Doctoral dissertation]. Michigan State University; 1972. [cited 2020 Jan 21]. Available from: http://etd.lib.msu.edu/islandora/object/etd:36363.

Council of Science Editors:

Sanderson, Dewey Dennis 1. Magnetic minerals and properties of the Melrose Stock. [Doctoral Dissertation]. Michigan State University; 1972. Available from: http://etd.lib.msu.edu/islandora/object/etd:36363

University of Arizona

18. Green, William Delap, 1936-. The location of trace quantities of uranium and thorium associated with magnetite .

Degree: 1962, University of Arizona

URL: http://hdl.handle.net/10150/347454

Subjects/Keywords: Magnetite.; Thorium.; Uranium.

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Green, William Delap, 1. (1962). The location of trace quantities of uranium and thorium associated with magnetite . (Masters Thesis). University of Arizona. Retrieved from http://hdl.handle.net/10150/347454

Chicago Manual of Style (16^th Edition):

Green, William Delap, 1936-. “The location of trace quantities of uranium and thorium associated with magnetite .” 1962. Masters Thesis, University of Arizona. Accessed January 21, 2020. http://hdl.handle.net/10150/347454.

MLA Handbook (7^th Edition):

Green, William Delap, 1936-. “The location of trace quantities of uranium and thorium associated with magnetite .” 1962. Web. 21 Jan 2020.

Vancouver:

Green, William Delap 1. The location of trace quantities of uranium and thorium associated with magnetite . [Internet] [Masters thesis]. University of Arizona; 1962. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/10150/347454.

Council of Science Editors:

Green, William Delap 1. The location of trace quantities of uranium and thorium associated with magnetite . [Masters Thesis]. University of Arizona; 1962. Available from: http://hdl.handle.net/10150/347454

University of Arizona

19. Whittier, Donald Andrews, 1935-. Character and distribution of mineralization associated with magnetite bodies northeast of Aquila, Michoacan, Mexico .

Degree: 1964, University of Arizona

URL: http://hdl.handle.net/10150/551733

Subjects/Keywords: Magnetite.; Geology – Mexico.

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Whittier, Donald Andrews, 1. (1964). Character and distribution of mineralization associated with magnetite bodies northeast of Aquila, Michoacan, Mexico . (Masters Thesis). University of Arizona. Retrieved from http://hdl.handle.net/10150/551733

Chicago Manual of Style (16^th Edition):

Whittier, Donald Andrews, 1935-. “Character and distribution of mineralization associated with magnetite bodies northeast of Aquila, Michoacan, Mexico .” 1964. Masters Thesis, University of Arizona. Accessed January 21, 2020. http://hdl.handle.net/10150/551733.

MLA Handbook (7^th Edition):

Whittier, Donald Andrews, 1935-. “Character and distribution of mineralization associated with magnetite bodies northeast of Aquila, Michoacan, Mexico .” 1964. Web. 21 Jan 2020.

Vancouver:

Whittier, Donald Andrews 1. Character and distribution of mineralization associated with magnetite bodies northeast of Aquila, Michoacan, Mexico . [Internet] [Masters thesis]. University of Arizona; 1964. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/10150/551733.

Council of Science Editors:

Whittier, Donald Andrews 1. Character and distribution of mineralization associated with magnetite bodies northeast of Aquila, Michoacan, Mexico . [Masters Thesis]. University of Arizona; 1964. Available from: http://hdl.handle.net/10150/551733

University of Ontario Institute of Technology

20. Egan, Jacquelyn G. The Functionalization of Magnetic [email protected] by Molecular Motif for the Detection of Mercury (II).

Degree: 2019, University of Ontario Institute of Technology

URL: http://hdl.handle.net/10155/1072

► 2,6-bis(2-thienyl)pyridine (L) molecular receptor showed strong potential for Hg2+ detection. The chelation through S,N,S was confirmed as a main binding mode of the ligand with… (more)

Subjects/Keywords: Mercury; Magnetite; Fluorscence; Surface sensor; Thiophene

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Egan, J. G. (2019). The Functionalization of Magnetic [email protected] by Molecular Motif for the Detection of Mercury (II). (Thesis). University of Ontario Institute of Technology. Retrieved from http://hdl.handle.net/10155/1072

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Egan, Jacquelyn G. “The Functionalization of Magnetic [email protected] by Molecular Motif for the Detection of Mercury (II).” 2019. Thesis, University of Ontario Institute of Technology. Accessed January 21, 2020. http://hdl.handle.net/10155/1072.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Egan, Jacquelyn G. “The Functionalization of Magnetic [email protected] by Molecular Motif for the Detection of Mercury (II).” 2019. Web. 21 Jan 2020.

Vancouver:

Egan JG. The Functionalization of Magnetic [email protected] by Molecular Motif for the Detection of Mercury (II). [Internet] [Thesis]. University of Ontario Institute of Technology; 2019. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/10155/1072.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Egan JG. The Functionalization of Magnetic [email protected] by Molecular Motif for the Detection of Mercury (II). [Thesis]. University of Ontario Institute of Technology; 2019. Available from: http://hdl.handle.net/10155/1072

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan State University

21. Kim, Joon Yol. Hydrostatic pressure effects on saturation remanent magnetization, susceptibility and magnetic hardness of magnetite.

Degree: MS, 1976, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:7417

Subjects/Keywords: Magnetite; Magnetostriction; Geophysics

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kim, J. Y. (1976). Hydrostatic pressure effects on saturation remanent magnetization, susceptibility and magnetic hardness of magnetite. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:7417

Chicago Manual of Style (16^th Edition):

Kim, Joon Yol. “Hydrostatic pressure effects on saturation remanent magnetization, susceptibility and magnetic hardness of magnetite.” 1976. Masters Thesis, Michigan State University. Accessed January 21, 2020. http://etd.lib.msu.edu/islandora/object/etd:7417.

MLA Handbook (7^th Edition):

Kim, Joon Yol. “Hydrostatic pressure effects on saturation remanent magnetization, susceptibility and magnetic hardness of magnetite.” 1976. Web. 21 Jan 2020.

Vancouver:

Kim JY. Hydrostatic pressure effects on saturation remanent magnetization, susceptibility and magnetic hardness of magnetite. [Internet] [Masters thesis]. Michigan State University; 1976. [cited 2020 Jan 21]. Available from: http://etd.lib.msu.edu/islandora/object/etd:7417.

Council of Science Editors:

Kim JY. Hydrostatic pressure effects on saturation remanent magnetization, susceptibility and magnetic hardness of magnetite. [Masters Thesis]. Michigan State University; 1976. Available from: http://etd.lib.msu.edu/islandora/object/etd:7417

University of Newcastle

22. Alam, Mohammad Khairul. Advanced applications of tunable magnetite nanofluids in energy systems and energy harvesters.

Degree: PhD, 2018, University of Newcastle

URL: http://hdl.handle.net/1959.13/1385053

►

Research Doctorate - Doctor of Philosophy (PhD)

The properties of nanofluids have the potential to provide a wide range of resources to overcome energy associated… (more)

▼

Research Doctorate - Doctor of Philosophy (PhD)

The properties of nanofluids have the potential to provide a wide range of resources to overcome energy associated difficulties, in addition to offering new ways to gain, store and exchange of energy. A significant improvement in energy saving is possible by improving the performance of a heat exchanger circuit and may in part alleviate current challenging issues such as global warming, climate change and the fuel crisis. Ferrofluids or Magnetic nanofluids are the suspensions of magnetic nanoparticles and non-magnetic base fluid. Ferrofluids have drawn considerable attention due to the possibility of tuning their heat transfer and flow properties through the application of an external magnetic field. They can also be utilised to improve the performance of an energy harvester, which can supply power and enhance the capability, assertion and lifespan of those devices where batteries or direct electricity are currently used as the primary source of power. Electromagnetic ferrofluid based energy harvesters convert the ferrofluids’ sloshing movement into electromotive force (EMF), hence it is necessary to estimate the feasibility, stability and efficacy of ferrofluids through several physico-chemical studies. This study is divided into five different sections. Initially, we look at the preparation of various conventional metal oxide nanofluids, their stability and thermophysical properties. Secondly, the heat transfer performance of these conventional nanofluids under various flow conditions as well as the different amount of surfactant in the nanosuspensions is considered. Then the focus is shifted to the specific case of magnetite nanofluids, which includes the preparation and characterisation of magnetite nanofluid. This is followed by the heat transfer performance measurement of this colloid compared to the conventional nanofluids by varying the external magnets configurations. Finally, different types of magnetite nanofluids are implemented in vibration-based energy harvester. Stability of nanofluids is a major concern in heat transfer applications. The objective of this work is to prepare a stable Al₂O₃/DI-water, CuO/DI-water and Fe₃O₄/DI-water nanofluids with the aim of applying them in the novel heat transfer applications as well as energy harvester devices. This study is investigated the overall stability of Al₂O₃ and CuO nanofluids with respect to pH, zeta potential, particle size distribution and its effect on viscosity and thermal conductivity at various weight concentrations of anionic surfactants (sodium dodecylbenzene sulfonate). The results clearly showed that nanofluid’s stability has a strong effect on viscosity and thermal conductivity of these colloids. The stability of the nanofluids is enhanced with a decrease in viscosity and an increase in thermal conductivity. Furthermore, water based polymer coated Fe₃O₄ nanofluids are prepared by using a chemical…

Advisors/Committee Members: University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering.

Subjects/Keywords: tunable magnetite nanofluids; energy systems; energy harvesters

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Alam, M. K. (2018). Advanced applications of tunable magnetite nanofluids in energy systems and energy harvesters. (Doctoral Dissertation). University of Newcastle. Retrieved from http://hdl.handle.net/1959.13/1385053

Chicago Manual of Style (16^th Edition):

Alam, Mohammad Khairul. “Advanced applications of tunable magnetite nanofluids in energy systems and energy harvesters.” 2018. Doctoral Dissertation, University of Newcastle. Accessed January 21, 2020. http://hdl.handle.net/1959.13/1385053.

MLA Handbook (7^th Edition):

Alam, Mohammad Khairul. “Advanced applications of tunable magnetite nanofluids in energy systems and energy harvesters.” 2018. Web. 21 Jan 2020.

Vancouver:

Alam MK. Advanced applications of tunable magnetite nanofluids in energy systems and energy harvesters. [Internet] [Doctoral dissertation]. University of Newcastle; 2018. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/1959.13/1385053.

Council of Science Editors:

Alam MK. Advanced applications of tunable magnetite nanofluids in energy systems and energy harvesters. [Doctoral Dissertation]. University of Newcastle; 2018. Available from: http://hdl.handle.net/1959.13/1385053

Georgia Tech

23. Minnici, Krysten. PEG-coated Fe3O4 for li-Ion battery anodes: Effects of crystallite size and surface chemistry.

Degree: MS, Chemical and Biomolecular Engineering, 2017, Georgia Tech

URL: http://hdl.handle.net/1853/59796

► Battery electrodes are complex mesoscale systems comprised of an active material, conductive agent, current collector, and polymeric binder. Previous work focused on enhancing electron and… (more)

▼ Battery electrodes are complex mesoscale systems comprised of an active material, conductive agent, current collector, and polymeric binder. Previous work focused on enhancing electron and ion transport in high capacity anode systems by introducing poly[3-(potassium-4- butanoate) thiophene] (PPBT) as a binder component and a polyethylene glycol (PEG) surface coating on magnetite (Fe3O4) nanoparticles. The PPBT/PEG system will be utilized in this work, which takes a closer look at the active material, Fe3O4, and examines the effects of surface chemistry and crystallite size (10 nm vs. 20 nm) on battery performance. Variations in surface chemistry are due to the synthesis methods used for Fe3O4, which use ammonium hydroxide or triethylamine as a base. XRD and TEM initially characterized the active materials to confirm the magnetite phase and crystallite size. DLS and zeta potential measurements demonstrated aggregate size and colloidal stability. SEM images of the electrodes, which are composed of Fe3O4 particles, carbon additives, and the PPBT binder, indicate that the bases produce different morphologies. The Fe3O4 particles synthesized with ammonium hydroxide appear more dispersed relative to those made with triethylamine, which could have a significant impact on the battery performance. Furthermore, XPS and FTIR data indicate that these bases produce difference chemical interactions within the electrode. Electrochemical testing demonstrates that the triethylamine-based electrode has a higher capacity and better capacity retention over 100 cycles at 0.3C as compared to the ammonium hydroxide-based electrode. With regards to differences in active material size, the electrodes with 20 nm crystallite size Fe3O4 initially have a higher capacity, but the electrodes with 10 nm crystallite size Fe3O4 have better capacity retention over 100 cycles at 0.3C. Rate capability testing and electrical impedance confirm the superior performance of triethylamine derived electrodes and the 10 nm crystallite size. Advisors/Committee Members: Reichmanis, Elsa (advisor), Fuller, Thomas (advisor), Meredith, Carson (advisor).

Subjects/Keywords: Li-ion battery; Anode; Fe3O4; Magnetite; PEG

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Minnici, K. (2017). PEG-coated Fe3O4 for li-Ion battery anodes: Effects of crystallite size and surface chemistry. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/59796

Chicago Manual of Style (16^th Edition):

Minnici, Krysten. “PEG-coated Fe3O4 for li-Ion battery anodes: Effects of crystallite size and surface chemistry.” 2017. Masters Thesis, Georgia Tech. Accessed January 21, 2020. http://hdl.handle.net/1853/59796.

MLA Handbook (7^th Edition):

Minnici, Krysten. “PEG-coated Fe3O4 for li-Ion battery anodes: Effects of crystallite size and surface chemistry.” 2017. Web. 21 Jan 2020.

Vancouver:

Minnici K. PEG-coated Fe3O4 for li-Ion battery anodes: Effects of crystallite size and surface chemistry. [Internet] [Masters thesis]. Georgia Tech; 2017. [cited 2020 Jan 21]. Available from: http://hdl.handle.net/1853/59796.

Council of Science Editors:

Minnici K. PEG-coated Fe3O4 for li-Ion battery anodes: Effects of crystallite size and surface chemistry. [Masters Thesis]. Georgia Tech; 2017. Available from: http://hdl.handle.net/1853/59796

University of Florida

24. Henehan, Mason. An Investigation of Magnetochrome Proteins MamX and MamE in Bacterial Magnetite Biomineralization.

Degree: 2015, University of Florida

URL: http://ufdc.ufl.edu/AA00047904

► Biomineralization is the generalized term for controlled mechanisms by which organisms build bone, magnetite, and other highly ordered three-dimensional particles from inorganic building blocks9. Magnetotactic… (more)

Subjects/Keywords: Bacteria; Biomineralogy; Crystals; Cytochromes; Gels; Magnetism; Magnetite; Magnets; Plasmids; Proteins; biomineralization; crystallography; cytochrom; magnetite; magnetochrome

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Henehan, M. (2015). An Investigation of Magnetochrome Proteins MamX and MamE in Bacterial Magnetite Biomineralization. (Thesis). University of Florida. Retrieved from http://ufdc.ufl.edu/AA00047904

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Henehan, Mason. “An Investigation of Magnetochrome Proteins MamX and MamE in Bacterial Magnetite Biomineralization.” 2015. Thesis, University of Florida. Accessed January 21, 2020. http://ufdc.ufl.edu/AA00047904.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Henehan, Mason. “An Investigation of Magnetochrome Proteins MamX and MamE in Bacterial Magnetite Biomineralization.” 2015. Web. 21 Jan 2020.

Vancouver:

Henehan M. An Investigation of Magnetochrome Proteins MamX and MamE in Bacterial Magnetite Biomineralization. [Internet] [Thesis]. University of Florida; 2015. [cited 2020 Jan 21]. Available from: http://ufdc.ufl.edu/AA00047904.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Henehan M. An Investigation of Magnetochrome Proteins MamX and MamE in Bacterial Magnetite Biomineralization. [Thesis]. University of Florida; 2015. Available from: http://ufdc.ufl.edu/AA00047904

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of New Orleans

25. Pradhan, Anindya. Synthesis and Characterization of Novel Nanoparticles for Use as Photocatalytic Probes and Radiotracers.

Degree: PhD, Chemistry, 2008, University of New Orleans

URL: https://scholarworks.uno.edu/td/689

► Two novel synthetic routes to formation of gold-magnetite nanoparticles have been designed. Treatment of preformed magnetite nanoparticles with ultrasound in aqueous media with dissolved tetrachloroauric… (more)

▼ Two novel synthetic routes to formation of gold-magnetite nanoparticles have been designed. Treatment of preformed magnetite nanoparticles with ultrasound in aqueous media with dissolved tetrachloroauric acid resulted in the formation of gold-magnetite nanocomposite materials. The other route involved irradiation of preformed magnetite nanoparticles by UV light in aqueous media with dissolved tetrachloroauric acid. This method resulted in the formation of gold-magnetite nanocomposite materials. These materials maintained the morphology of the original magnetite particles. The morphology of the gold particles could be controlled by adjusting experimental parameters, like addition of small amounts of solvent modifiers such as methanol, diethylene glycol, and oleic acid as well as variation of the concentration of the tetrachloroauric acid solution and time of the reaction. The nanocomposite materials were magnetic and exhibited optical properties similar to gold nanoparticles. Since we were not able to directly synthesize core shell gold magnetite nanoparticles, TiO2 was used as a bridging material. TiO2 nanoparticles with embedded magnetite were suspended in aqueous HAuCl4 and irradiated with ultraviolet light to photodeposit gold. The degree of gold coating and the wavelength of absorbance could be controlled by adjusting concentration of HAuCl4. Absorbance maxima were between 540-590 nm. Particles exhibited superparamagnetic properties (blocking temperature ~170 K) whether or not coated with gold. These particles have potential applications as drug delivery agents, magnetic imaging contrast agents, and magnetically separatable photocatalysts with unique surface properties. Another goal was to synthesize and characterize indium doped magnetite nanoparticles for application as radiotracers for in vivo fate studies. The labeled particles will be useful for determination of pharmacological behavior in biological systems. Indium doped magnetite particles with varying size and surface chemistry were synthesized with wet chemical techniques. The synthesized nanoparticles were characterized in terms of the size and shape with the help of TEM, the elemental composition by ICP and EDS, the crystal structure by XRD and magnetic properties by SQUID measurements. It was found that the indium loading could be controlled even though the magnetic properties were similar to undoped magnetite. Advisors/Committee Members: Tarr, Matthew A., Cole, Richard B., Wiley, John B..

Subjects/Keywords: magnetite nanoparticles; gold magnetite nanocomposites; TiO2 nanoparticles; indium magnetite nanocomposites; radiotracers

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pradhan, A. (2008). Synthesis and Characterization of Novel Nanoparticles for Use as Photocatalytic Probes and Radiotracers. (Doctoral Dissertation). University of New Orleans. Retrieved from https://scholarworks.uno.edu/td/689

Chicago Manual of Style (16^th Edition):

Pradhan, Anindya. “Synthesis and Characterization of Novel Nanoparticles for Use as Photocatalytic Probes and Radiotracers.” 2008. Doctoral Dissertation, University of New Orleans. Accessed January 21, 2020. https://scholarworks.uno.edu/td/689.

MLA Handbook (7^th Edition):

Pradhan, Anindya. “Synthesis and Characterization of Novel Nanoparticles for Use as Photocatalytic Probes and Radiotracers.” 2008. Web. 21 Jan 2020.

Vancouver:

Pradhan A. Synthesis and Characterization of Novel Nanoparticles for Use as Photocatalytic Probes and Radiotracers. [Internet] [Doctoral dissertation]. University of New Orleans; 2008. [cited 2020 Jan 21]. Available from: https://scholarworks.uno.edu/td/689.

Council of Science Editors:

Pradhan A. Synthesis and Characterization of Novel Nanoparticles for Use as Photocatalytic Probes and Radiotracers. [Doctoral Dissertation]. University of New Orleans; 2008. Available from: https://scholarworks.uno.edu/td/689

26. Santos, Germano Pereira dos. Estudo eletroquímico de micropartículas individuais e colisões de nanopartículas de magnetita modificadas com azul da Prússia.

Degree: Mestrado, Físico-Química, 2015, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/75/75134/tde-07052015-093611/ ;

►

De acordo com a literatura recente, a eletroquímica de partículas magnéticas e fenômenos de colisões em superfícies eletródicas resultam em curvas voltamétricas e amperométricas com… (more)

▼

De acordo com a literatura recente, a eletroquímica de partículas magnéticas e fenômenos de colisões em superfícies eletródicas resultam em curvas voltamétricas e amperométricas com perfis completamente destoados do convencional. Alguns modelos teóricos propõem explicações, no entanto, ainda se observa a necessidade de aquisição de mais dados experimentais. Visando contribuir com esta área, esta Dissertação de Mestrado aborda a manipulação de micropartículas e nanopartículas de magnetita modificadas com azul da Prússia (Fe3O4-PB), bem como o estudo das propriedades eletroquímicas das partículas na presença de um campo magnético externo. Filmes constituídos por micropartículas sobre eletrodos de carbono (grafite) foram obtidos por duas técnicas distintas, drop coating e magneto-deposição. Para ambos os métodos, os filmes apresentaram dois picos nos voltamogramas, um de oxidação (0,12 V) e outro de redução (-0,05 V), que estão associados ao par redox azul da Prússia/branco da Prússia. Para o filme obtido via drop coating, observaram-se correntes de pico mais elevadas. Também, micropartículas de Fe3O4-PB individuais foram isoladas (single particle) com auxílio de um microscópio óptico e analisadas por voltametria, onde se verificou o aparecimento de picos com os mesmos valores de potenciais. Utilizando os dois estados de comutação de campo (0,2 Tesla), ligado e desligado, foi possível controlar a presença e a ausência da partícula no eletrodo. Também, observaram-se diferenças nos valores de densidade de corrente nos cronoamperogramas para cada micropartícula de Fe3O4-PB e que a morfologia da micropartícula interfere significativamente na resposta eletroquímica. Por fim, e agora se tratando da eletroquímica de nanopartículas de Fe3O4-PB sobre um ultramicroeletrodo (UME) de ouro, controlaram-se as colisões das mesmas em diferentes condições experimentais, como na presença e na ausência de um campo magnético externo paralelo a superfície do eletrodo e com intensidades variadas (0,1 e 0,2 Tesla). Na ausência do campo, as nanopartículas que chegaram ao UME colidiram e se acumularam, gerando sinais eletroquímicos do tipo corrente staircase. Na presença de um campo de 0,1 T, observaram-se vários transientes de correntes (spikes) associados às colisões das nanopartículas, eventos esses não observados frequentemente na presença do campo de 0,2 T. Assim, esses resultados abrem a discussão da necessidade de se aperfeiçoarem os modelos que explicam os perfis das curvas voltamétricas e amperométricas para esses sistemas.

According to recent literature, the electrochemistry of magnetic particles and collision phenomena on surfaces result in unconventional voltammetric and amperometric responses. Some theoretical models has been proposed; however, experimental data are required for improve that. In order to contribute to this research area, this Master\'s Dissertation describes the manipulation of microparticles and nanoparticles of magnetite modified with Prussian blue (Fe3O4-PB), as well as the study of electrochemical properties…

Advisors/Committee Members: Crespilho, Frank Nelson.

Subjects/Keywords: Azul da Prússia; Colisões; Collisions; Magnetite microparticles; Magnetite nanoparticles; Micromanipulação; Micromanipulation; Micropartículas de magnetita; Nanopartículas de magnetita; Prussian blue

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Santos, G. P. d. (2015). Estudo eletroquímico de micropartículas individuais e colisões de nanopartículas de magnetita modificadas com azul da Prússia. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/75/75134/tde-07052015-093611/ ;

Chicago Manual of Style (16^th Edition):

Santos, Germano Pereira dos. “Estudo eletroquímico de micropartículas individuais e colisões de nanopartículas de magnetita modificadas com azul da Prússia.” 2015. Masters Thesis, University of São Paulo. Accessed January 21, 2020. http://www.teses.usp.br/teses/disponiveis/75/75134/tde-07052015-093611/ ;.

MLA Handbook (7^th Edition):

Santos, Germano Pereira dos. “Estudo eletroquímico de micropartículas individuais e colisões de nanopartículas de magnetita modificadas com azul da Prússia.” 2015. Web. 21 Jan 2020.

Vancouver:

Santos GPd. Estudo eletroquímico de micropartículas individuais e colisões de nanopartículas de magnetita modificadas com azul da Prússia. [Internet] [Masters thesis]. University of São Paulo; 2015. [cited 2020 Jan 21]. Available from: http://www.teses.usp.br/teses/disponiveis/75/75134/tde-07052015-093611/ ;.

Council of Science Editors:

Santos GPd. Estudo eletroquímico de micropartículas individuais e colisões de nanopartículas de magnetita modificadas com azul da Prússia. [Masters Thesis]. University of São Paulo; 2015. Available from: http://www.teses.usp.br/teses/disponiveis/75/75134/tde-07052015-093611/ ;

27. Khan, Latif Ullah. Nanomateriais ópticos e magnéticos contendo matrizes de Fe3O4 e SiO2 funcionalizadas com calixareno e complexos de terras raras.

Degree: PhD, Química, 2015, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/46/46136/tde-20072015-151110/ ;

►

Neste trabalho são investigados o designer e a fabricação nanomateriais magnéticos e luminescentes sofisticados bifuncionais baseados em Fe3O4 e complexos de RE3+. Portanto, novos nanomateriais… (more)

▼

Neste trabalho são investigados o designer e a fabricação nanomateriais magnéticos e luminescentes sofisticados bifuncionais baseados em Fe3O4 e complexos de RE3+. Portanto, novos nanomateriais [email protected](TTA) e [email protected](ACAC) emissores vermelho e verde superparamagnéticos foram preparados pelo método one-pot. Neste caso, o ligante calixareno quimicamente modicado como surfactantes para estabilizar as nanopartículas de Fe3O4. O ligante calixareno proporciona uma superfície quimicamente modificada e estabilidade coloidal das nanopartículas magnetitas. Consequentemente, as nanopartículas funcionalizadas ([email protected]) foram coordenadas aos íons TR3+ por meio da síntese one-pot, usando ligantes TTA e ACAC como sensibilizadores (efeito antena) para produzir nanofósforos altamente luminescentes. Além do mais, nanocompósitos bifuncionais óptico e magnético [email protected](L), L: TTA, TC, AB e AMB bem como [email protected](AB ou AMB) foram também preparados por meio de um protocolo de múltiplas etapas, utilizando as nanopartículas Fe3O4 como precursoras. Elas foram modificas com camadas de sílica, usando o método Stöber modificado e ligados com complexos de TR3+ para produzir nanocompósitos luminescentes e magnéticos. As técnicas de difração de raios X pelo método do pó (XPD), Espalhamento de Raios-X a baixo ângulo (SAXS), microscopia eletrônica de transmissão (TEM) e microscopia de eletrônica de varredura (MEV) foram utilizas para determinar as estruturas, morfologias, distribuições de tamanhos e monodispersividade dos materiais sintetizados. Estes novos nanomateriais bifuncionais [email protected](TTA), [email protected](ACAC), [email protected](L) e [email protected](AB ou AMB) apresentam propriedades fotônicas e superparamagnéticas muito interessantes. As propriedades magnéticas (ZFC/FC e M-H) obtidas nas temperaturas de 2, 5 e 300 K foram investigadas a fim de obter informações sobre o efeito da cristalinidade na magnetização de saturação e das temperaturas de bloqueios. Também foram estudadas a influência dos íons TR3+ sobre a magnetização dos nanomateriais. Apesar da magnetita atuar como um forte supressor de luminescência, as camadas do ligante calixareno modificado e da sílica sobre as nanopartículas de Fe3O4 compensam esta desvantagem. Do mesmo modo foi considerada a discussão sobre a transferência de energia intramolecular do estado tripleto T1 dos ligantes TTA e ACAC para os níveis excitados dos íons Eu3+ e Tb3+ nos nanomateriais [email protected](TTA) e [email protected](ACAC). As eficiências quânticas de emissão (η) dos compostos [email protected](TTA) e [email protected](L) foram calculadas e discutidas, bem como suas características estruturais baseadas nos níveis de energia e parâmetros de intensidades experimentais dos sistemas contendo o íon Eu3+. Estes novos nanomateriais podem atuar como camadas emissores vermelha e verde para dispositivos moleculares conversores de luz e magnéticos (MLCMDs).

The design and fabrication of sophisticated bifunctional luminescent and magnetic nanomaterials based on…

Advisors/Committee Members: Brito, Hermi Felinto de.

Subjects/Keywords: Calixarene; Calixareno; Complexos de terras raras; Fotoluminescência; Magnetism; Magnetismo; Magnetite; Magnetite; Photoluminescence; Rare earth complexes; Silica; Sílica

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Khan, L. U. (2015). Nanomateriais ópticos e magnéticos contendo matrizes de Fe3O4 e SiO2 funcionalizadas com calixareno e complexos de terras raras. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/46/46136/tde-20072015-151110/ ;

Chicago Manual of Style (16^th Edition):

Khan, Latif Ullah. “Nanomateriais ópticos e magnéticos contendo matrizes de Fe3O4 e SiO2 funcionalizadas com calixareno e complexos de terras raras.” 2015. Doctoral Dissertation, University of São Paulo. Accessed January 21, 2020. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-20072015-151110/ ;.

MLA Handbook (7^th Edition):

Khan, Latif Ullah. “Nanomateriais ópticos e magnéticos contendo matrizes de Fe3O4 e SiO2 funcionalizadas com calixareno e complexos de terras raras.” 2015. Web. 21 Jan 2020.

Vancouver:

Khan LU. Nanomateriais ópticos e magnéticos contendo matrizes de Fe3O4 e SiO2 funcionalizadas com calixareno e complexos de terras raras. [Internet] [Doctoral dissertation]. University of São Paulo; 2015. [cited 2020 Jan 21]. Available from: http://www.teses.usp.br/teses/disponiveis/46/46136/tde-20072015-151110/ ;.

Council of Science Editors:

Khan LU. Nanomateriais ópticos e magnéticos contendo matrizes de Fe3O4 e SiO2 funcionalizadas com calixareno e complexos de terras raras. [Doctoral Dissertation]. University of São Paulo; 2015. Available from: http://www.teses.usp.br/teses/disponiveis/46/46136/tde-20072015-151110/ ;

Luleå University of Technology

28. Koivisto, Evelina. Utilization Potential of Iron Oxide By-Product from Serpentinite Carbonation.

Degree: 2013, Luleå University of Technology

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-55702

► Mineral carbonation is a naturally occurring process to capture CO2. Research at Åbo Akademi University (ÅAU) has tried to speed up the process in… (more)

▼ Mineral carbonation is a naturally occurring process to capture CO2. Research at Åbo Akademi University (ÅAU) has tried to speed up the process in order to find a suitable option for future CO2 capture and storage. Mineral carbonation is a safe way to store CO2 since no leakage is expected in a time range of hundred thousand years. This study was focused on the possibilities to use the iron by-product that is extracted from different suitable rocks suggested for use in the in-direct gas solid route developed at ÅAU.Two different serpentinites from Finland and Lithuania were studied. Serpentinite is a magnesium silicate rich rock which is found to be suitable for mineral carbonation. Magnesium will be extracted by allowing serpentinite react with ammonium sulphate. This reaction will make it possible for magnesium to form sulphates which can be dissolved in water. Magnesium hydroxide will precipitate as pH of the solution is increased. The hydroxides are in next step carbonated to magnesium carbonate by carbon monoxide.Iron content in the studied rocks is approximately 10 wt%, which makes it interesting to study the possibility to utilize iron as a by-product from mineral carbonation. The focus of this report was held on the characterization of the chosen rock types as well as finding a suitable iron-rich product which could be used for iron and steel making. Goethite has until today been precipitated in the process route developed at ÅAU. Attempts were therefore done in order to precipitate magnetite instead, which has some benefits with respect to energy needs comparing to other iron oxides. Increased temperature and sufficient time for iron to form magnetite seems to be two important factors to achieve optimum magnetite precipitation.Twelve precipitation experiments were conducted and two of the final iron precipitates were found to contain visible amounts of magnetic material. This indicates that it is possible to precipitate magnetite instead of goethite as the developed process proposes. Precipitations were done at different temperatures, with/without nitrogen gas supply and with ammonia/sodium hydroxide to increase solution pH. Iron will precipitate at pH 8-10 while magnesium will precipitate at higher pH. Taking advantage of this, it becomes possible to extract iron and magnesium separately.Analyses of the presence of ferrous and ferric ions in the starting solutions were done by the ferrozine method. Some differences could be found between the Lithuanian and Finnish serpentinite. The Finnish serpentinite, unlike the Lithuanian serpentinite, resulted in an iron rich initial solution containing both ferrous and ferric ions. This can partly explain why it seemed to be somewhat easier to precipitate magnetite from the Finnish serpentinite than from the Lithuanian serpentinite, which seemed to contain only ferrous ions.Reduction tests by TGA/DTA showed a large weight decrease upon reduction of two different iron precipitates. Hydroxide compounds are expected to form upon precipitation. Decomposition of these…

Subjects/Keywords: Technology; mineral carbonation; serpentinite; magnetite; goethite; iron precipitation; Teknik; mineral carbonation; serpentinite; magnetite; goethite; iron precipitation

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Koivisto, E. (2013). Utilization Potential of Iron Oxide By-Product from Serpentinite Carbonation. (Thesis). Luleå University of Technology. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-55702

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Koivisto, Evelina. “Utilization Potential of Iron Oxide By-Product from Serpentinite Carbonation.” 2013. Thesis, Luleå University of Technology. Accessed January 21, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-55702.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Koivisto, Evelina. “Utilization Potential of Iron Oxide By-Product from Serpentinite Carbonation.” 2013. Web. 21 Jan 2020.

Vancouver:

Koivisto E. Utilization Potential of Iron Oxide By-Product from Serpentinite Carbonation. [Internet] [Thesis]. Luleå University of Technology; 2013. [cited 2020 Jan 21]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-55702.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Koivisto E. Utilization Potential of Iron Oxide By-Product from Serpentinite Carbonation. [Thesis]. Luleå University of Technology; 2013. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-55702

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

29. Karande, Vidya Anandrao. Studies on microbial synthesis of cobalt doped magnetite nanoparticles for biomedical application; -.

Degree: Microbiology, 2014, D Y Patil University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/40983

None

Annexure p.192-196

Advisors/Committee Members: Pawar, S H.

Subjects/Keywords: Cobalt; Magnetite; Microbial; Studies

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Karande, V. A. (2014). Studies on microbial synthesis of cobalt doped magnetite nanoparticles for biomedical application; -. (Thesis). D Y Patil University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/40983

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Karande, Vidya Anandrao. “Studies on microbial synthesis of cobalt doped magnetite nanoparticles for biomedical application; -.” 2014. Thesis, D Y Patil University. Accessed January 21, 2020. http://shodhganga.inflibnet.ac.in/handle/10603/40983.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Karande, Vidya Anandrao. “Studies on microbial synthesis of cobalt doped magnetite nanoparticles for biomedical application; -.” 2014. Web. 21 Jan 2020.

Vancouver:

Karande VA. Studies on microbial synthesis of cobalt doped magnetite nanoparticles for biomedical application; -. [Internet] [Thesis]. D Y Patil University; 2014. [cited 2020 Jan 21]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/40983.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Karande VA. Studies on microbial synthesis of cobalt doped magnetite nanoparticles for biomedical application; -. [Thesis]. D Y Patil University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/40983

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Kentucky

30. Amini, Seyed Hassan. ULTRA CLEAN COAL PRODUCTION USING DENSE MEDIUM SEPARATION FOR THE SILICON MARKET.

Degree: 2014, University of Kentucky

URL: http://uknowledge.uky.edu/mng_etds/14

► The production of high quality silicon requires the use of ultraclean coal containing less than 1.5% ash. The magnetite used to clean the coal in… (more)

Subjects/Keywords: Dense Medium Cyclone; Medium stability; Medium rheology; Magnetite; Silicon; Mining Engineering

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Amini, S. H. (2014). ULTRA CLEAN COAL PRODUCTION USING DENSE MEDIUM SEPARATION FOR THE SILICON MARKET. (Masters Thesis). University of Kentucky. Retrieved from http://uknowledge.uky.edu/mng_etds/14

Chicago Manual of Style (16^th Edition):

Amini, Seyed Hassan. “ULTRA CLEAN COAL PRODUCTION USING DENSE MEDIUM SEPARATION FOR THE SILICON MARKET.” 2014. Masters Thesis, University of Kentucky. Accessed January 21, 2020. http://uknowledge.uky.edu/mng_etds/14.

MLA Handbook (7^th Edition):

Amini, Seyed Hassan. “ULTRA CLEAN COAL PRODUCTION USING DENSE MEDIUM SEPARATION FOR THE SILICON MARKET.” 2014. Web. 21 Jan 2020.

Vancouver:

Amini SH. ULTRA CLEAN COAL PRODUCTION USING DENSE MEDIUM SEPARATION FOR THE SILICON MARKET. [Internet] [Masters thesis]. University of Kentucky; 2014. [cited 2020 Jan 21]. Available from: http://uknowledge.uky.edu/mng_etds/14.

Council of Science Editors:

Amini SH. ULTRA CLEAN COAL PRODUCTION USING DENSE MEDIUM SEPARATION FOR THE SILICON MARKET. [Masters Thesis]. University of Kentucky; 2014. Available from: http://uknowledge.uky.edu/mng_etds/14

		in
And / Or
		in
And / Or
		in
And / Or
		in

Open Access Theses and Dissertations