Construction of a hierarchical BiOBr/C3N4 S-scheme heterojunction for selective photocatalytic CO2 reduction towards CO

A hierarchical S-scheme heterojunction photocatalyst was fabricated through the in situ growth of BiOBr nanosheets on microtubular C 3 N 4 , which demonstrates excellent photocatalytic activity for converting CO 2 into CO under visible light irradiation.