Effect of Er3+ ions on the phase formation and properties of In(2)O(3)nanostructures crystallized upon microwave heating

dc.citation.volume249
dc.contributor.authorLemos, Samantha C. S.
dc.contributor.authorRomeiro, Fernanda C.
dc.contributor.authorde Paula, Leonardo F.
dc.contributor.authorGoncalves, Rosana F. [UNIFESP]
dc.contributor.authorde Moura, Ana P.
dc.contributor.authorFerrer, Mateus M.
dc.contributor.authorLongo, Elson
dc.contributor.authorPatrocinio, Antonio Otavio T.
dc.contributor.authorLima, Renata C.
dc.coverageSan Diego
dc.date.accessioned2020-07-17T14:02:13Z
dc.date.available2020-07-17T14:02:13Z
dc.date.issued2017
dc.description.abstractRegular sized nanostructures of indium oxide (In2O3) were homogeneously grown using a facile route, i.e. a microwave-hydrothermal method combined with rapid thermal treatment in a microwave oven. The presence of Er3+ doping plays an important role in controlling the formation of cubic (bcc) and rhombohedral (rh) In2O3 phases. The samples presented broad photoluminescent emission bands in the green-orange region, which were attributed to the recombination of electrons at oxygen vacancies. The photocatalytic activities of pure bcc-In2O3 and a bcc-rh-In2O3 mixture towards the UVA degradation of methylene blue (MB) were also evaluated. The results showed that Er+3 doped In2O3 exhibited the highest photocatalytic activity with a photonic efficiency three times higher than the pure oxide. The improved performance was attributed to the higher surface area, the greater concentration of electron traps due the presence of the dopant and the possible formation of heterojunctions between the cubic and rhombohedral phases.en
dc.description.affiliationUniv Fed Uberlandia, Inst Quim, BR-38400902 Uberlandia, MG, Brazil
dc.description.affiliationUniv Fed Sao Paulo, UNIFESP, BR-09972270 Diadema, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Quim, LIEC, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUniv Fed Sao Carlos, INCTMN UFSCar, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, UNIFESP, BR-09972270 Diadema, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipCoordenacao de Aperfeicoamento de Pessoal de Nivel Superior (Capes)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
dc.description.sponsorshipFundacao de Amparo a Pesquisa do Estado de Minas Gerais (FAPEMIG)
dc.description.sponsorshipFAPEMIG
dc.description.sponsorshipIDFAPEMIG: APQ-00988-13
dc.description.sponsorshipIDFAPEMIG: APQ-00330-14
dc.description.sponsorshipIDFAPEMIG: CEX - RED-00010-14
dc.format.extent58-63
dc.identifierhttp://dx.doi.org/10.1016/j.jssc.2017.02.011
dc.identifier.citationJournal Of Solid State Chemistry. San Diego, v. 249, p. 58-63, 2017.
dc.identifier.doi10.1016/j.jssc.2017.02.011
dc.identifier.issn0022-4596
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/54695
dc.identifier.wosWOS:000398879700010
dc.language.isoeng
dc.publisherAcademic Press Inc Elsevier Science
dc.relation.ispartofJournal Of Solid State Chemistry
dc.rightsAcesso restrito
dc.subjectIndium oxideen
dc.subjectEarth rareen
dc.subjectMicrowave hydrothermalen
dc.subjectPhotoluminescenceen
dc.subjectPhotocatalysten
dc.titleEffect of Er3+ ions on the phase formation and properties of In(2)O(3)nanostructures crystallized upon microwave heatingen
dc.typeArtigo
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