CdMoO 4 synthesized by a microwave-assisted hydrothermal method and their photoluminescence and photocatality properties
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Data
2012-08-20
Autores
De Moura, Ana P. [UNESP]
Oliveira, Larissa H.
Xavier, Camila S.
Rosa, I. L V
Li, Máximo Siu
Longo, Elson [UNESP]
Varela, José Arana [UNESP]
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Resumo
In this work CdMoO 4 nanoparticles were obtained under hydrothermal conditions using microwave radiation (2.45 GHz) (MH) at 100°C for different times. 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 CdMoO 4 phases were obtained. FEG-SEM powders present large-scale and homogeneous particles with microspheres-like morphology. UV-vis results were employed to determine the optical band gap these materials. Also, it showed existence of photoluminescence (PL) emission in the green wavelength range of 540-546 nm. Photocatalytic activity of CdMoO 4 nanocrystals was examined by monitoring the degradation of rhodamine B dye.
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Palavras-chave
Cadmium molybdate, Microwave-hydrothermal, Photocatality, Photoluminescence, FEG-SEM, Hydrothermal conditions, Hydrothermal methods, Microwave hydrothermal, Microwave-assisted, Photocatalytic activities, Photoluminescence emission, Photoluminescence measurements, Rhodamine B dye, Wavelength ranges, XRD patterns, Cadmium, Degradation, Dyes, Exhibitions, Films, Nanocrystals, Nanotechnology, Photocatalysis, Powders, Scanning electron microscopy, X ray diffraction, X ray powder diffraction, Nanocomposite films
Como citar
Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012, p. 429-432.