Synthesis and characterization of nanostructured TiO<sub>2</sub>-SnO<sub>2</sub> composite

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dc.contributor.authorBreve, Joelma Cristna de Souza
dc.contributor.authorSantos, Dayse Iara dos [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2016-03-02T13:03:32Z
dc.date.available2016-03-02T13:03:32Z
dc.date.issued2014
dc.description.abstractNanostructured composites based on titanium dioxide have been studied in order to improve optical and photo-catalytic properties, as well as their performance in gas sensors. In this work, titanium and tin dioxides were simultaneously synthesized by the polyol method resulting in TiO2 platelet coated with SnO2 nanoparticles as was observed by scanning electron microscopy. The thermal analysis showed that the combined synthesis promotes more easily the crystallization of the TiO2 rutile phase. The composite obtained after heat treatment at 500 °C showed to be formed of almost only rutile phases of both oxides. The optical properties analyzed by UV-Vis spectroscopy showed that the combined oxides have higher absorbance, which reinforces a model found in the literature based on the flow of photo-generated electrons to the conduction band of SnO2 delaying the recombination of charges.en
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Física, Faculdade de Ciências de Bauru, Bauru, Av. Engo. Luiz Edmundo Carrijo Coube 14-01, Vargem Limpa, CEP 17033360, SP, Brasil
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Física, Faculdade de Ciências de Bauru, Bauru, Av. Engo. Luiz Edmundo Carrijo Coube 14-01, Vargem Limpa, CEP 17033360, SP, Brasil
dc.format.extent233-237
dc.identifierhttp://dx.doi.org/10.4028/www.scientific.net/AMR.975.233
dc.identifier.citationAdvanced Materials Research, v. 975, p. 233-237, 2014.
dc.identifier.doi10.4028/www.scientific.net/AMR.975.233
dc.identifier.issn1662-8985
dc.identifier.lattes8506867595279427
dc.identifier.urihttp://hdl.handle.net/11449/135609
dc.language.isoeng
dc.relation.ispartofAdvanced Materials Research
dc.relation.ispartofsjr0,121
dc.rights.accessRightsAcesso restrito
dc.sourceCurrículo Lattes
dc.subjectNanostructured materialsen
dc.subjectPolyol methoden
dc.subjectSemiconductors nanocompositeen
dc.subjectTin dioxideen
dc.subjectTiO2-SnO2 compositeen
dc.subjectTitanium dioxideen
dc.titleSynthesis and characterization of nanostructured TiO<sub>2</sub>-SnO<sub>2</sub> compositeen
dc.typeArtigo
unesp.author.lattes8506867595279427
unesp.author.orcid0000-0002-9280-4334[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.departmentFísica - FCpt

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