Enhanced photocatalytic activity of g-C 3 N 4 for selective CO 2 reduction to CH 3 OH via facile coupling of ZnO: a direct Z-scheme mechanism

A direct Z-scheme g-C 3 N 4 /ZnO binary composite photocatalytic system was constructed and exhibited enhanced photocatalytic CO 2 reduction activity compared to g-C 3 N 4 or ZnO.