Research on the Preparation of (CuAg)(x)In(2x)Zn(2(1-2x))S(2) Solid Solution Photocatalysts

ZnS-CuInS(2)-AgInS(2) solid solution photocatalysts were successfully prepared by co-precipitation method with heat treatment under different atmosphere (N(2) and H(2)S). XRD, XRF, UV-vis, and SEM were used to characterize the prepared photocatalysts, indicated that the composition of result photocatalysts were different from each other and also the rate of charge, though they possessed a wurtzite-type phase structure. The photocatalysts all showed photocatalytic activities for H(2) evolution from aqueous solutions containing SO(3)(2)' and S(2)' as sacrificial reagents under visible light irradiation with Ru loading, but sample treated under H(2)S atmosphere performed better, the possible reason was proposed.