A highly enhanced photoelectrochemical performance of BiVO4 photoanodes modified with CoPi groups by increasing energy band bending, accelerating hole separation and improving water oxidation kinetics

Co-Pi has a synergistic effect on the photoelectrochemical water oxidation of the BiVO 4 photoanode: increasing energy band bending, accelerating the hole separation and acting as an oxygen evolution co-catalyst with faster water oxidation kinetics.