A dual S-scheme TiO2@In2Se3@Ag3PO4 heterojunction for efficient photocatalytic CO2 reduction

Electrons with a strong reduction capacity and holes with a high oxidation capacity are retained. CO 2 adsorbed on the photocatalyst surface is reduced to CH 4 , CH 3 OH and CO by electrons, and H 2 O is oxidized to O 2 by holes.