Facile structure design based on C 3 N 4 for mediator-free Z-scheme water splitting under visible light

A mediator-free Z-scheme overall water splitting photocatalyst system is achieved through the use of C 3 N 4 (H 2 generation catalyst) and WO 3 (O 2 generation catalyst) composite from a hydrothermal method, and Pt as co-catalyst under visible light ( λ > 420 nm).