Preparation, characterization and photocatalytic properties of BiOBr/ZnO composites

The BiOBr/ZnO heterojunctions were prepared by thehydrothermal method. The BiOBr/ZnO composite with a mole ratio of 3:1 (Bi:Zn) showed the best photocatalytic performance. Effective separation of photogenerated electron-hole pairs was the main reason for the improvement of photocatalytic activity. 123