Synthesis of nanocrystalline zinc sulfide in a non-aqueous system by gamma-irradiation |
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| Authors: | Bakambo Gracien Ekoko Ruimin Zhou Li Hui Xin Francis Adeleke Olukunle Kanza Kanza Lobo |
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| Institution: | (1) School of Environmental and Chemical Engineering, Shanghai University, 200072, Shanghai, P.R. China;(2) School of Environmental and Chemical Engineering, Shanghai University, 200072, Shanghai, P.R. China;(3) School of Environmental and Chemical Engineering, Shanghai University, 200072, Shanghai, P.R. China;(4) School of Environmental and Chemical Engineering, Shanghai University, 200072, Shanghai, P.R. China;(5) Université de Kinshasa, Faculté des Sciences, Département de Chimie, Unité de Chimie Nucléaire et de Radiochimie, 190, Kinshasa XI, Kinshasa, République Démocratique du Congo |
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| Abstract: | Summary Gamma-irradiation has been applied to synthesize nanocrystalline ZnS with average size of 38 nm in a non-aqueous system at room temperature by utilizing homogeneous release of S2- ions from the decomposition of carbon disulfide under γ-irradiation. The structure, morphology, size and optical properties have been studied by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), ultraviolet-visible spectrometer (UV-visible). The product containing zinc ions and the sulfur source has been characterized as β-ZnS, sphalerite phase, with spherical morphology and with a diameter average size of about 38 nm.The possible mechanism of formation of the product is suggested in accord with the experiment. |
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