Multifarious function layers photoanode based on g-C3N4 for photoelectrochemical water splitting

g-C3N4/TiO2/Co-Pi photoanode for PEC water splitting to generate hydrogen. g-C3N4 as light-absorption layer layer, TiO2 as protection layer and Co-Pi as hole capture layer. Enhanced performances due to outstanding light absorption, charges separation and durability.