Photoluminescence and Photocatalytic properties of Ag3PO4 microcrystals: An Experimental and Theoretical investigation
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http://dx.doi.org/10.1002/cplu.201500485 |
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Título
Photoluminescence and Photocatalytic properties of Ag3PO4 microcrystals: An Experimental and Theoretical investigationFecha de publicación
2015-11-09Editor
WileyISSN
2192-6506Cita bibliográfica
BOTELHO, Gleice, et al. Photoluminescence and Photocatalytic Properties of Ag3PO4 Microcrystals: An Experimental and Theoretical Investigation. ChemPlusChem, 2015.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://search.proquest.com/docview/1774299275/92AEE4FB91AB4493PQ/9?accountid=15297Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The structural, morphological, and optical properties of Ag3PO4 microcrystals were systematically characterized by using a combination of theoretical calculations and experimental techniques. These microcrystals were ... [+]
The structural, morphological, and optical properties of Ag3PO4 microcrystals were systematically characterized by using a combination of theoretical calculations and experimental techniques. These microcrystals were synthesized by the microwave-assisted hydrothermal (MAH) method. XRD, Rietveld refinements, and FTIR spectroscopy were employed to carry out a structural analysis; the morphologies of the microcrystals were examined by FEG-SEM. First-principles computational studies were used to calculate the geometries of bulk Ag3PO4 and its (010), (100), (001), (110), (101), (011), and (111) surfaces. A continuous decrease in the energy of the (100) surface led to a good agreement between the experimental and theoretical morphologies. Optical properties were investigated by UV/Vis spectroscopy and photoluminescence (PL) measurements, which revealed a maximum PL emission at λ=444 nm. The MAH-synthesized sample exhibited good activity for the photocatalytic degradation of methyl orange dye under visible irradiation. The photocatalytic activity and PL behavior were correlated with the observed morphology. [-]
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ChemPlusChem, 2015Derechos de acceso
Copyright Blackwell Publishing Ltd. Feb 2016
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