The results showed that the optimized BiVO4/WO3/W photoanode obtained a photocurrent of 2.01 mA/cm2at 0.6 V (vs Ag/AgCl) in 0.1 M KH2PO4(pH 7) electrolyte under simulated AM1.5 solarlight, which was 180% and 205% higher than that of bare WO3film and bare BiVO4film, respectively