Preparation of CuFeS₂ Nanoparticles Supported by Carbon Nitride Nanorods and Its Improved Catalytic Performance in a Photofenton System

Advanced oxidation technology (AOPs) is an effective technology to treat water pollution, which has attracted recent attention. The non-selective and strong oxidation properties of hydroxyl radicals (·OH) in the AOPs reaction process are efficient enough to degrade pollutants. CuFeS₂/g-C₃N₄ (CFS/CN) photofenton catalyst was synthesized by a simple hydrothermal/calcination method for degradation of Rhodamine B (RhB). The results show that CFS/CN 1:2.5 has the optimum catalytic performance for RhB degradation at 0.10 g/L catalyst, 10 mg/L RhB concentration, 50 μL H₂O₂ addition and pH value 1. In addition, the degradation efficiency of CFS/CN for RhB is 90% at 15 min and nearly 96% at 20 min. According to the results of cyclic experiments, CFS/CN has a good cyclic stability. It is indicated that CFS/CN catalysts could provide a potential application for RhB degradation.