Application of g-C3N4 Matrix Composites Photocatalytic Performance from Degradation of Antibiotics

Semiconductor photocatalysts have broad prospects in the removal of antibiotics in water. In numerous semiconductor light catalyst materials, g-C3N4 has attracted much attention because of its suitable band gap, high thermal and chemical stability. But its conductivity is poor, and the visible light utilization rate is low, which restrict the range of application. Modification strategies such as doping and semiconductor materials compounding can expand the visible light absorption range and maintain the advantages of high redox capacity of the photocatalyst. This article introduces the hazards of antibiotics in water, describes the progress of research on the modification of g-C3N4 by metal elements, non-metal elements, metal oxides and metal sulfides to remove antibiotics (TCs, SAs etc.) in water. Finally, we try to put forward some new research directions on the basis of the current research of photocatalyst, and put forward some simple views on the application of g-C3N4.