CuS nano/submicro materials with different morphologies were synthesized with spherical, tubular, leaflike and strip type structures in a simple aqueous system under microwave irradiation and sunlight and employing Cu (CH 3 COO) 2 , CuSO 4 Á5H 2 O, CuCl 2 , and as copper source and H 2 NCSNH 2 , Na 2 S 2 O 3 Á5H 2 O and CH 3 CSNH 2 as sulfur sources. The starting materials were used without assistance of any surfactant or template. An X-ray powder diffraction pattern confirms that the product was CuS with hexagonal phase. Scanning electron microscopy was used to observe the morphologies of the product. Different Phase transitions in CuS with respect to temperature are studied by DSC/TGA. The dependence of morphologies of product on different experimental conditions was also discussed.
The aggregation of CuS nanoparticles during synthesis by a hassle-free aqueous route under microwave irradiation gave remarkable spherical shape, utilizing Cu(CH 3 COO) 2 ÁH 2 O as the source of copper and Na 2 S 2 O 3 Á5H 2 O, as sulfur source; these materials were used without assistance of any surfactant or template. An X-ray powder diffraction pattern proved that the product is hexagonal CuS phase. The morphologies of the product were observed by scanning electron microscopy. Thermal behavior, different solid state, and chemical conversion in CuS with respect to temperature were studied by DSC/TGA, which confirmed the thermal oxidation of CuS and its conversion into CuO then to Cu 2 O.
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