Photocatalytic CO2 conversion to methanol by Cu2O/graphene/TNA heterostructure catalyst in a visible-light-driven dual-chamber reactor

Efficient photocatalytic CO2 conversion to methanol under visible light irradiation (λ>400 nm) was achieved in a light-driven dual-chamber reactor using the monolithic two-side Cu2O/graphene/TiO2 nanotube array (TNA) heterostructure as separated oxidation and reduction catalyst, that was prepared with anodic TNA as the substrate following by sequential electrochemical deposition of graphene and Cu2O. The combined heterojunction in the ternary...