Microwave-assisted hydrothermal synthesis of ZnO powders with different reagents

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dc.contributor.authorXavier, C. S.
dc.contributor.authorDe Moura, A. P. [UNESP]
dc.contributor.authorLi, M. S.
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorCava, S.
dc.contributor.institutionUniversidade Federal de Pernambuco (UFPE)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-27T11:26:56Z
dc.date.available2014-05-27T11:26:56Z
dc.date.issued2012-08-20
dc.description.abstractIn this work, zinc oxide powders were synthesized by microwave-assisted hydrothermal method in basic medium. These powders were analyzed by X-ray diffraction (XRD), Field-emisson gum scanning electron microscopy (FEG-SEM), Ultraviolet-visible (UV-vis) absorption spectroscopy and photoluminescence (PL) measurements. XRD pattern confirmed that the pure ZnO phases were obtained after MH processing performed at 130°C/ 1h. FEG-SEM micrographs reveals that these nanostructures are made up of ZnO plates. UV-vis results were employed to determine the optical band gap these materials. Also, it showed existence of photoluminescence (PL) in the different zinc powders. An orange PL emission when excited by 350 nm wavelength at room temperature was observad in the different powders.en
dc.description.affiliationDepto de Engenharia de Materials UFPel, Pelotas, RS
dc.description.affiliationInstituto de Química UNESP, CEP: 14800-900, Araraquara, SP
dc.description.affiliationInstituto de Física USP, São Carlos, SP
dc.description.affiliationUnespInstituto de Química UNESP, CEP: 14800-900, Araraquara, SP
dc.format.extent405-408
dc.identifierhttp://www.techconnectworld.com/Nanotech2012/a.html?i=1569
dc.identifier.citationTechnical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012, p. 405-408.
dc.identifier.scopus2-s2.0-84864978440
dc.identifier.urihttp://hdl.handle.net/11449/73506
dc.language.isoeng
dc.relation.ispartofTechnical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectHexagonal structure
dc.subjectMicrowave-hydrothermal
dc.subjectPhotoluminescence
dc.subjectZinc oxide
dc.subjectBasic medium
dc.subjectFEG-SEM
dc.subjectHexagonal structures
dc.subjectHydrothermal methods
dc.subjectMicrowave hydrothermal
dc.subjectMicrowave-assisted
dc.subjectMicrowave-assisted hydrothermal synthesis
dc.subjectPhotoluminescence measurements
dc.subjectPL emission
dc.subjectPure ZnO
dc.subjectRoom temperature
dc.subjectXRD patterns
dc.subjectZinc oxide powder
dc.subjectZinc powder
dc.subjectZnO
dc.subjectZnO powder
dc.subjectExhibitions
dc.subjectFilms
dc.subjectHydrothermal synthesis
dc.subjectNanotechnology
dc.subjectPowders
dc.subjectScanning electron microscopy
dc.subjectX ray diffraction
dc.subjectX ray powder diffraction
dc.subjectNanocomposite films
dc.titleMicrowave-assisted hydrothermal synthesis of ZnO powders with different reagentsen
dc.typeTrabalho apresentado em evento
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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