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New materials based on modified synthetic Nb2O5 as photocatalyst for oxidation of organic contaminants

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dc.contributor.authorEsteves, Andre
dc.contributor.authorOliveira, Luiz C. A.
dc.contributor.authorRamalho, Teodorico C.
dc.contributor.authorGoncalves, Maraisa
dc.contributor.authorAnastacio, Alexandre S.
dc.contributor.authorCarvalho, Hudson W. P. [UNESP]
dc.contributor.institutionUniversidade Federal de Lavras (UFLA)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:18:32Z
dc.date.available2014-05-20T14:18:32Z
dc.date.issued2008-12-15
dc.description.abstractNovel materials based on niobia (Nb2O5) destined to oxidize an organic compound in aqueous medium via heterogeneous photocatalysis after chemical modification were synthesized. Niobia was modified by the doping with molybdenum or tungsten and also treated with H2O2. The analysis of the products from methylene blue dye oxidation, with electrospray ionization mass spectrometry, showed that the dye was Successively oxidized to different intermediate compounds. These results strongly Suggest that the oxidation of the organic dye involves oxidizing species mainly generated after the modification of the niobia with Mo or W and also the previous treatment with H2O2. (C) 2008 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniversidade Federal de Lavras (UFLA), Dept Chem, BR-37200000 Lavras, MG, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Fisicoquim, Inst Quim Araraquara, BR-14801970 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Fisicoquim, Inst Quim Araraquara, BR-14801970 São Paulo, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFinanciadora de Estudos e Projetos (FINEP)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
dc.format.extent330-332
dc.identifierhttp://dx.doi.org/10.1016/j.catcom.2008.09.012
dc.identifier.citationCatalysis Communications. Amsterdam: Elsevier B.V., v. 10, n. 3, p. 330-332, 2008.
dc.identifier.doi10.1016/j.catcom.2008.09.012
dc.identifier.issn1566-7367
dc.identifier.urihttp://hdl.handle.net/11449/25587
dc.identifier.wosWOS:000261666600015
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofCatalysis Communications
dc.relation.ispartofjcr3.463
dc.relation.ispartofsjr0,929
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectSynthetic niobiaen
dc.subjectDopeden
dc.subjectPhotocatalysisen
dc.titleNew materials based on modified synthetic Nb2O5 as photocatalyst for oxidation of organic contaminantsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentFísico-Química - IQARpt

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Araraquara - IQAR - Instituto de Química