Europium/Graphite Phase Carbon Nitride Composites: Preparation and Photocatalytic Degradation Potential of Different Drugs

Abstract Graphene‐like materials were prepared by thermal copolymerization using melamine as a precursor, and chemical methods successfully synthesized Eu/g‐C 3 N 4 composites containing different europium elements. Degradation rates of 64.3 %, 91.9 %, and 72.8 % were observed in the photocatalytic degradation of Pefloxacin, Enrofloxacin, and Ciprofloxacin under visible light (λ>550 nm). Determine the photocatalytic activity of the composite. When the doping amount was Eu/g‐C 3 N 4 ‐2 with k=0.0135 min −1 , four times greater than that of g‐C 3 N 4 , the best photocatalytic effect was obtained. Repeated studies revealed that the Eu/g‐C 3 N 4 composite samples had good cycle stability, and a potential degradation process was postulated.