Beschreibung:
Photocatalytic removal of hexavalent chromium ( Cr(VI) ) based on semiconductor is important under visible light for environment and energy. Herein, a visible light responsive heterojunction composed with molybdenum disulfide and zinc indium sulfide was synthetized through one pot hydrothermal method to ensure full contact between the above two components to efficiently improve the Cr(VI) reduction. The MoS2/ZnIn2S4 composites builds heterojunctions between MoS2 and ZnIn2S4 to inhibit recombination of photogenerated holes and electrons, and provides the reaction sites to trap photogenerated electrons to participate in reduction of Cr(VI). It demonstrates that the 0.5wt% MoS2/ZnIn2S4 composite microstructures shows the highest degradation rate of 0.19892 s-1 under visible light irradiation, 1.7 times of bare ZnIn2S4. Moreover, the MoS2/ZnIn2S4 showed excellent stability during photocatalytic recyclable processes