Modification of CsAgBiCl Double-Perovskite Photocatalytic Activity by Br Doping.

Developing highly efficient photocatalysts is crucial for photocatalysis technology. Many reports have demonstrated that element doping was an effective strategy for developing highly efficient photocatalysts by broadening the visible light absorption range and suppressing the recombination of photogenerated carriers. Herein, we doped the Br element into CsAgBiCl perovskite to widen the visible light absorption and enhance the charge transfer ability and then developed a highly efficient visible-light photocatalyst based on CsAgBiCl.