Facile synthesis of bimetallic (In,Ga)(O,S) oxy-sulfide nanoflower and its enhanced photocatalytic activity for reduction of Cr(VI).

Hexavalent chromium is one of the most chronic and harmful to human beings, animals, and environmental well-being, and hence needs a high attention to detoxify it. For this purpose, bimetallic (In,Ga)(O,S) oxy-sulfide nanoflower catalyst with different Ga contents was successfully synthesized at a low temperature of 150 °C via a facile method. It was systematically characterized and the visible light-driven photocatalytic reduction of toxic Cr(VI) was 100% completed at 4 min.