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Use este identificador para citar ou linkar para este item: http://hdl.handle.net/1843/80422
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Campo DCValorIdioma
dc.creatorGustavo Henrique de Magalhães Gomespt_BR
dc.creatorJose Balena Gabriel Filhopt_BR
dc.creatorCarlos Giovani Oliveira Bruziquesipt_BR
dc.creatorHenrique Fernandes Vieira Victoriapt_BR
dc.creatorKlaus Wilhelm Heinrich Krambrockpt_BR
dc.creatorLuiz Carlos Alves de Oliveirapt_BR
dc.creatorNelcy Della Santina Mohallempt_BR
dc.date.accessioned2025-02-25T16:52:27Z-
dc.date.available2025-02-25T16:52:27Z-
dc.date.issued2022-
dc.citation.spage1pt_BR
dc.citation.epage47pt_BR
dc.identifier.doihttps://doi.org/10.2139/ssrn.4127829pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/80422-
dc.description.resumoDefect engineering of Nb2O5 nanoparticles is an approachable way to improve photocatalytic performance. TT-Nb2O5 nanoparticles were synthesized using the Pechini method followed by calcination, producing line defects in the crystalline structure and single-electron-trapped oxygen vacancies (SETOVs). The structural results demonstrate that TT-Nb2O5 calcined at 500 °C presents a superlattice orthorhombic structure with a specific surface area between 45-90 m².g-1 and mesoporous network structure. Electronic properties analysis revealed that the TT-Nb2O5 nanoparticles synthesized by the Pechini method (NbPEG and NbEG) have different concentrations of SETOVs in their structure according to the polymerizing agent used in the synthesis, ethylene glycol and polyethylene glycol for NbEG and NbPEG, respectively. The unprecedented photochemical acetalization of glycerol into solketal, employing isopropyl alcohol instead of acetone, was described. The textural properties and the higher concentration of SETOVs significantly improved the photocatalytic performance of NbEG, allowing a synergistic dual catalytic behavior, where the electron accumulation process on the surface of the semiconductor took place, inducing proton generation, which improved the conversion of glycerol (47.8%) as well as the selectivity to solketal (69.8%).pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofSSRNpt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectNiobium pentoxidept_BR
dc.subjectCrystal structurept_BR
dc.subjectDefectspt_BR
dc.subjectPhotocatalysispt_BR
dc.subjectGlycerolpt_BR
dc.subjectSolketalpt_BR
dc.subject.otherNióbiopt_BR
dc.subject.otherFotocatálisept_BR
dc.titleSynergistic dual catalysis for the photoinduced conversion of glycerol into solketal through defect engineered TT-Nb2O5 nanoparticlespt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://papers.ssrn.com/sol3/papers.cfm?abstract_id=4127829pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2944-7039pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-1641-6476pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-7022-4283pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-4846-2189pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-7562-0285pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9094-4536pt_BR
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