Structure, optical properties, and photocatalytic activity of α-Ag2W0.75Mo0.25O4

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dc.contributor.authorPenha, M. D.
dc.contributor.authorGouveia, A. F.
dc.contributor.authorTeixeira, M. M.
dc.contributor.authorde Oliveira, R. C. [UNESP]
dc.contributor.authorAssis, M.
dc.contributor.authorSambrano, J. R. [UNESP]
dc.contributor.authorYokaichya, F.
dc.contributor.authorSantos, C. C.
dc.contributor.authorGonçalves, R. F.
dc.contributor.authorSiu Li, M.
dc.contributor.authorSan-Miguel, M. A.
dc.contributor.authorAndrés, J.
dc.contributor.authorLongo, E.
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionHelmholtz-Zentrum-Berlin
dc.contributor.institutionSetorUniversitário
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversity Jaume I
dc.date.accessioned2020-12-12T01:32:39Z
dc.date.available2020-12-12T01:32:39Z
dc.date.issued2020-12-01
dc.description.abstractThis article describes the synthesis of α-Ag2W0.75Mo0.25O4 using a coprecipitation method followed by microwave irradiation for different times. The samples were characterized using X-ray and neutron diffractions with Rietveld refinement, Raman spectroscopy, X-ray fluorescence, and ultraviolet-visible diffused reflectance spectroscopy, as well as by photoluminescence emissions. To complement and rationalize the experimental results, first-principles calculations were performed. The formation and growth of metallic Ag nanoparticles on the surfaces of α-Ag2W0.75Mo0.25O4 were studied by transmission electron microscopy and energy dispersive X-ray spectroscopy. Results show that α-Ag2W0.75Mo0.25O4 samples obtained correspond to α-Ag2WO4/β-Ag2MoO4 heterostructure, and the posterior microwave irradiation favors the process of substituting W by Mo, with subsequent formation of a solid solution. Photocatalytic tests were performed to verify the photocatalytic efficiency against the Rhodamine B. Photoluminescence emissions and photocatalytic results showed that the samples obtained at the longest microwave irradiation time promoted the formation of structural defects and enhanced the material properties.en
dc.description.affiliationCDMF Federal University of São Carlos, P.O. Box 676
dc.description.affiliationInstitute of Chemistry State University of Campinas Unicamp
dc.description.affiliationModeling and Molecular Simulations Group São Paulo State University UNESP
dc.description.affiliationHelmholtz-Zentrum-Berlin
dc.description.affiliationUFCat Federal University of Catalão SetorUniversitário
dc.description.affiliationIFSC University of São Paulo, P.O. Box 369
dc.description.affiliationDepartament of Analytical and Physical Chemistry University Jaume I
dc.description.affiliationUnespModeling and Molecular Simulations Group São Paulo State University UNESP
dc.description.sponsorshipFundação de Amparo à Pesquisa e ao Desenvolvimento Científico e Tecnológico do Maranhão
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipMinisterio de Ciencia, Innovación y Universidades
dc.description.sponsorshipUniversitat Jaume I
dc.description.sponsorshipIdCAPES: 1268069
dc.description.sponsorshipIdFAPESP: 2013/07296-2
dc.description.sponsorshipIdFAPESP: 2016/23891-6
dc.description.sponsorshipIdFAPESP: 2019/01732-1
dc.description.sponsorshipIdFAPESP: 2019/08928-9
dc.description.sponsorshipIdCNPq: 304531/2013-8
dc.description.sponsorshipIdMinisterio de Ciencia, Innovación y Universidades: PGC2018-094417-B-I00
dc.description.sponsorshipIdUniversitat Jaume I: UJI-B2019-30
dc.identifierhttp://dx.doi.org/10.1016/j.materresbull.2020.111011
dc.identifier.citationMaterials Research Bulletin, v. 132.
dc.identifier.doi10.1016/j.materresbull.2020.111011
dc.identifier.issn0025-5408
dc.identifier.scopus2-s2.0-85088650860
dc.identifier.urihttp://hdl.handle.net/11449/199172
dc.language.isoeng
dc.relation.ispartofMaterials Research Bulletin
dc.sourceScopus
dc.subjectA. inorganic compounds
dc.subjectB. optical properties
dc.subjectC. neutron diffraction
dc.subjectD. catalytic properties
dc.titleStructure, optical properties, and photocatalytic activity of α-Ag2W0.75Mo0.25O4en
dc.typeArtigo
unesp.author.orcid0000-0001-9038-0024[3]
unesp.author.orcid0000-0002-6650-7432[11]

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