Catalytic effect of Bi5+ in enhanced solar water splitting of tetragonal BiV0.8Mo0.2O4

Schematic representation of photoelectrochemical water oxidation using tetragonal BiV0.8Mo0.2O4 photoanode and Linear sweep voltamograms for pristine BiVO4 and BiV0.80Mo0.2O4 under dark and illuminated conditions in 0.5 M Na2SO4 + 0.5 M Na2SO3 (hole scavenger) revealing the improvement in water oxidation current for tetragonal BiV0.80Mo0.2O4 due to the catalytic effect of Bi3+/Bi5+.