Microwave-assisted hydrothermal synthesis of ZnO powders with different reagents
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Data
2012-08-20
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In 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.
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Hexagonal structure , Microwave-hydrothermal , Photoluminescence , Zinc oxide , Basic medium , FEG-SEM , Hexagonal structures , Hydrothermal methods , Microwave hydrothermal , Microwave-assisted , Microwave-assisted hydrothermal synthesis , Photoluminescence measurements , PL emission , Pure ZnO , Room temperature , XRD patterns , Zinc oxide powder , Zinc powder , ZnO , ZnO powder , Exhibitions , Films , Hydrothermal synthesis , Nanotechnology , Powders , Scanning electron microscopy , X ray diffraction , X ray powder diffraction , Nanocomposite films
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Inglês
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Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012, p. 405-408.