{"id":{"repo_id":"uoit","oai_identifier":"oai:ontariotechu.scholaris.ca:10155/1072"},"canonical_url":"https://search.dev.ndltd.org/etd/uoit/oai:ontariotechu.scholaris.ca:10155/1072","repository":{"repo_id":"uoit","name":"Ontario Institute of Technology","base_url":"https://ontariotechu.scholaris.ca/server/oai/request"},"display":{"title":"The Functionalization of Magnetic Fe3O4@TiO2 by Molecular Motif for the Detection of Mercury (II)","abstract":"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 Hg2+ ion based on the results of 1H NMR. L showed a strong characteristic fluorescence signal at 413 nm in the absence of Hg2+; however, this signal was quenched when Hg2+ was introduced and a new fluorescence signal at 563 nm appeared. L was anchored into the surface of the coated magnetite microspheres (L-Fe3O4@TiO2) through a siloxane template layer and was fully characterized using thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS). Detailed emission studies showed the ability of the L and L-Fe3O4@TiO2 not only effectively detect Hg2+ but differentiate it from competing Zn2+, Cd2+,Cu2+,Cr3+,Co2+,Ru3+, Fe2+ ions in solution with minimum interference. Magnetic micropsheres decorated by L showed promising performance as single –excitation -single emission sensor for Hg2+ ions and effective mercury uptake.","abstract_html":"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 Hg2+ ion based on the results of 1H NMR. L showed a strong characteristic fluorescence signal at 413 nm in the absence of Hg2+; however, this signal was quenched when Hg2+ was introduced and a new fluorescence signal at 563 nm appeared. L was anchored into the surface of the coated magnetite microspheres (L-Fe3O4@TiO2) through a siloxane template layer and was fully characterized using thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS). Detailed emission studies showed the ability of the L and L-Fe3O4@TiO2 not only effectively detect Hg2+ but differentiate it from competing Zn2+, Cd2+,Cu2+,Cr3+,Co2+,Ru3+, Fe2+ ions in solution with minimum interference. Magnetic micropsheres decorated by L showed promising performance as single –excitation -single emission sensor for Hg2+ ions and effective mercury uptake.","abstract_has_math":false,"creators":["Egan, Jacquelyn G."],"institution":"University of Ontario Institute of Technology","degree_name":"Master of Science (MSc)","degree_level":null,"degree_discipline":"Materials Science","degree_department":null,"school":null,"contributors":[],"advisors":["Zenkina, Olena"],"committee_chairs":[],"committee_members":[],"year":2019,"date_issued":"2019-07-01","date_published":"2019-07-01","updated_at":"2026-07-24T05:35:39Z","subjects":["Mercury","Magnetite","Fluorscence","Surface sensor","Thiophene"],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/10155/1072","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Zenkina, Olena"]},{"key":"dc:creator","label":"Author","values":["Egan, Jacquelyn G."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2019-10-16T18:22:11Z","2022-03-29T17:27:09Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2019-10-16T18:22:11Z","2022-03-29T17:27:09Z"]},{"key":"dc:date.issued","label":"Date","values":["2019-07-01"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Materials Science"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MSc)"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Ontario Institute of Technology"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Mercury","Magnetite","Fluorscence","Surface sensor","Thiophene"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/10155/1072"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["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 Hg2+ ion based on the results of 1H NMR. L showed a strong characteristic fluorescence signal at 413 nm in the absence of Hg2+; however, this signal was quenched when Hg2+ was introduced and a new fluorescence signal at 563 nm appeared. L was anchored into the surface of the coated magnetite microspheres (L-Fe3O4@TiO2) through a siloxane template layer and was fully characterized using thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS). Detailed emission studies showed the ability of the L and L-Fe3O4@TiO2 not only effectively detect Hg2+ but differentiate it from competing Zn2+, Cd2+,Cu2+,Cr3+,Co2+,Ru3+, Fe2+ ions in solution with minimum interference. Magnetic micropsheres decorated by L showed promising performance as single –excitation -single emission sensor for Hg2+ ions and effective mercury uptake."]},{"key":"dc:title","label":"Title","values":["The Functionalization of Magnetic Fe3O4@TiO2 by Molecular Motif for the Detection of Mercury (II)"]}]}],"canonical_facts":{"dc:contributor.advisor":["Zenkina, Olena"],"dc:creator":["Egan, Jacquelyn G."],"dc:date.accessioned":["2019-10-16T18:22:11Z","2022-03-29T17:27:09Z"],"dc:date.available":["2019-10-16T18:22:11Z","2022-03-29T17:27:09Z"],"dc:date.issued":["2019-07-01"],"dc:description.abstract":["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 Hg2+ ion based on the results of 1H NMR. L showed a strong characteristic fluorescence signal at 413 nm in the absence of Hg2+; however, this signal was quenched when Hg2+ was introduced and a new fluorescence signal at 563 nm appeared. L was anchored into the surface of the coated magnetite microspheres (L-Fe3O4@TiO2) through a siloxane template layer and was fully characterized using thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS). Detailed emission studies showed the ability of the L and L-Fe3O4@TiO2 not only effectively detect Hg2+ but differentiate it from competing Zn2+, Cd2+,Cu2+,Cr3+,Co2+,Ru3+, Fe2+ ions in solution with minimum interference. Magnetic micropsheres decorated by L showed promising performance as single –excitation -single emission sensor for Hg2+ ions and effective mercury uptake."],"dc:identifier.uri":["https://hdl.handle.net/10155/1072"],"dc:language.iso":["en"],"dc:subject":["Mercury","Magnetite","Fluorscence","Surface sensor","Thiophene"],"dc:title":["The Functionalization of Magnetic Fe3O4@TiO2 by Molecular Motif for the Detection of Mercury (II)"],"dc:type":["Thesis"],"thesis:degree_discipline":["Materials Science"],"thesis:degree_name":["Master of Science (MSc)"],"thesis:institution_name":["University of Ontario Institute of Technology"]},"updated_at":"2026-07-24T05:35:39Z"}