Z-scheme CuO/FeO/GO heterojunction photocatalyst: Enhanced photocatalytic performance for elimination of tetracycline.

CuO/FeO/GO, as a Z-scheme heterojunction catalyst, was successfully synthesized and used as a photocatalyst for removing tetracycline from aqueous solution. The CuO/FeO/GO heterogeneous catalyst combines the narrow bandgap semiconductor CuO, oxygen vacancies of FeO, and oxygen-containing reaction sites of GO. Without the addition of activators (persulfate or HO), the photocatalytic performance on decomposing tetracycline is very excellent.