“…Photocatalysis, a kind of advanced oxidation technology, has been widely studied for water purication, 4-6 antibacterial, 7 anti-fog, 8 deodorization, 9 antifouling 10 treatment since it was rst reported in 1972. 11 In recent years, a growing body of research was carried out on photocatalytic degradation of antibiotics in pharmaceutical wastewater, [12][13][14][15][16] which was expected to make up for the deciency of traditional biochemical treatment which is time-consuming and oen unreliable. g-C 3 N 4 is a visible light responsive photocatalyst, which has attracted worldwide attention due to its unique layered structure, innoxious, chemical inertness, low cost, facile fabrication, and appropriate electronic band structure with a band gap of 2.7 eV.…”