. Consequently, as depicted in Fig. 1, GBVOx is
able to split water into H2 and O2 under visible light irradiation
without using any sacrificial reagents (e.g., CH3OH or AgNO3).
Herein, we report the dual-metal doping effects on the optical
absorption behavior, crystal structure, and electronic band
structure of BiVO4, which led to one-photon OWS under visible
light irradiation. We elucidate the physical origin of the augmented
photoresponse behaviors of GBVOx through density
functional theory (DFT) calculation of electronic structure as
well as a variety of physical and electrochemical characterizations