SYNTHESIS OF CuS/S NANOCOMPOSITES BY HYDROTHERMAL WAY AND THEIR CHARACTERIZATION

Abstract

Copper sulfide/sulfur nanocomposites have been successfully synthesi- zed by hydrothermal route reacting Cu(CH3COO)2, CuCl2and (NH2)2CS in aqua media at 80 °C. The synthesized sample was studied by X-ray diffraction (XRD), Raman spectroscopy, TG-DS, and scanning electron microscopy (SEM) analysis. According to the results of XRD analysis, the diffraction peaks of the CuS/S nanocomposites closely matched the standard copper sulfide and sulfur peaks. The average crystallite size of copper sulfide and sulfur particles was about 3.5 and 3.6 nm, respectively. Results of TG-DSC analysis showed that composite material contains about 16.16 % of sulfur and 12.29 % of copper sulfide (covellite). SEM images presented that composite material consists of two different microstructures: elongated needle-like and non-structured agglomerates.

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