Zinc-doped g-C3N4/BiVO4 as a Z-scheme photocatalyst system for water splitting under visible light

A two-step photocatalytic water splitting system, so called “Z-scheme system”, was achieved using Zn-doped g-C3N4 for H2 evolution and BiVO4 for O2 evolution with Fe2+/Fe3+ as a shuttle redox mediator.