Preparation and degradation properties of AgBiS2/BiOI composite photocatalytic materials with high catalytic activity.

An AgBiS2/BiOI composites with different proportions were prepared by precipitation method, and their catalytic activity was studied by degrading RhB (100 mg/L) under simulated light conditions. The results showed that the photocatalytic activity of AgBiS2/BiOI composite was the best when the doping amount of AgBiS2 was 4 wt. % (the degradation rate was about 94%). Compared with pure BiOI, the degradation rate of RhB increased by 24%. After 5 cycles of experiments, the degradation rate of the material can still reach 94%, indicating that the AgBiS2/BiOI composite has good stability. [ABSTRACT FROM AUTHOR]