Construction of WO/CsPbBr S-scheme heterojunction via electrostatic Self-assembly for efficient and Long-Period photocatalytic CO reduction.

Owing to the severe photogenerated carriers recombination and low oxidation ability, the photocatalytic performance of pristine CsPbBr is still unsatisfactory. Herein, melamine foam supported S-scheme WO/CsPbBr heterojunction is successfully synthesized by electrostatic self-assembly. Because of the appropriate energy level positions, an S-scheme charge migration route between CsPbBr and WO is constructed.