Boosted photocatalytic NO removal performance by S-scheme hierarchical composites WO3/Bi4O5Br2 prepared through a facile ball-milling protocol

It is crucial to develop an efficient system of high photocatalytic capability over NO removal and simultaneous avoidance of toxic NO2 formation. In this study a serious of hierarchical composites WO3/Bi4O5Br2 (WB) were successfully fabricated by a facile ball-milling protocol and systematically characterized by various analytical techniques. Both expected ingredients were realized and coexisted in composites to generate heterojunction...