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DC Field | Value | Language |
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dc.contributor.author | Sczancoski, J. C. | - |
dc.contributor.author | Bomio, M. D. R. | - |
dc.contributor.author | Cavalcante, L. S. | - |
dc.contributor.author | Joya, M. R. | - |
dc.contributor.author | Pizani, P. S. | - |
dc.contributor.author | Varela, José Arana | - |
dc.contributor.author | Longo, Elson | - |
dc.contributor.author | Li, M. Siu | - |
dc.contributor.author | Andres, J. A. | - |
dc.date.accessioned | 2014-05-20T14:17:35Z | - |
dc.date.accessioned | 2016-10-25T17:40:02Z | - |
dc.date.available | 2014-05-20T14:17:35Z | - |
dc.date.available | 2016-10-25T17:40:02Z | - |
dc.date.issued | 2009-04-09 | - |
dc.identifier | http://dx.doi.org/10.1021/jp810294q | - |
dc.identifier.citation | Journal of Physical Chemistry C. Washington: Amer Chemical Soc, v. 113, n. 14, p. 5812-5822, 2009. | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.uri | http://hdl.handle.net/11449/25267 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/25267 | - |
dc.description.abstract | PbMoO4 micro-octahedrons were prepared by the coprecipitation method at room temperature without the presence of surfactants and processed in a conventional hydrothermal at different temperatures (from 60 to 120 degrees C) for 10 min. These micro-octahedrons were structurally characterized by X-ray diffraction (XRD) and micro-Raman (MR) spectroscopy, and its morphology was investigated by field-emission gun scanning electron microscopy (FEG-SEM). The optical properties were analyzed by ultraviolet-visible (UV-vis) absorption spectroscopy and photoluminescence (PL) measurements. XRD patterns and MR spectra confirmed that the PbMoO4 micro-octahedrons are characterized by a scheelite-type tetragonal structure. FEG-SEM micrographs points, out that these structures present a polydisperse particle size distribution in consequence of a predominant growth mechanism via aggregation of particles. In addition, it was observed that the hydrothermal conditions favored a spontaneous formation of micro-octahedrons interconnected along a common crystallographic orientation (oriented-attachment), resulting in self-organized structures. An intense blue PL emission at room temperature was observed in these micro-octahedrons when they were excited with a 350 nm wavelength. The origin of the PL emissions as well as its intensity variations are explained by means of a model based on both distorted [MoO4] and [PbO8] clusters into the lattice. | en |
dc.description.sponsorship | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | - |
dc.description.sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | - |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | - |
dc.format.extent | 5812-5822 | - |
dc.language.iso | eng | - |
dc.publisher | Amer Chemical Soc | - |
dc.source | Web of Science | - |
dc.title | Morphology and Blue Photoluminescence Emission of PbMoO4 Processed in Conventional Hydrothermal | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.contributor.institution | Universidade Federal de São Carlos (UFSCar) | - |
dc.contributor.institution | Universidade de São Paulo (USP) | - |
dc.contributor.institution | Univ Juame 1 | - |
dc.description.affiliation | Univ Estadual Paulista, IQ, BR-14801907 Araraquara, SP, Brazil | - |
dc.description.affiliation | Universidade Federal de São Carlos (UFSCar), LIEC, Dept Quim & Fis, BR-13565905 São Carlos, SP, Brazil | - |
dc.description.affiliation | Univ Estadual Paulista, Dept Bioquim & Tecnol Quim, BR-14801907 Araraquara, SP, Brazil | - |
dc.description.affiliation | Univ São Paulo, IFSC, BR-13560970 São Carlos, SP, Brazil | - |
dc.description.affiliation | Univ Juame 1, Dept Quim Fis & Analit, Castellon de La Plana 12071, Spain | - |
dc.description.affiliationUnesp | Univ Estadual Paulista, IQ, BR-14801907 Araraquara, SP, Brazil | - |
dc.description.affiliationUnesp | Univ Estadual Paulista, Dept Bioquim & Tecnol Quim, BR-14801907 Araraquara, SP, Brazil | - |
dc.identifier.doi | 10.1021/jp810294q | - |
dc.identifier.wos | WOS:000264805700066 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.relation.ispartof | Journal of Physical Chemistry C | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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