Abstract
In this paper, CuO/g-C3N4 catalyst was prepared by one-step hydrothermal calcination, characterized, and analyzed by scanning electron microscope, X-ray diffraction, and X-ray photoelectron technology to test the activation effect and regeneration properties, and to investigate the effect of photocatalytic removal of phenol from the water after activation of sulfate with this material. A xenon lamp was used to simulate the visible light source, and the self-prepared phenol wastewater was used as the treated water sample to observe the treatment effect of the test under different test systems. The results show that the morphology of CuO/g-C3N4 and various energy peaks meet the requirements and have good photoactivation characteristics. The stability and recyclability of the catalyst were good, and the treatment of phenol reached 76 % after five tests. The phenol removal rate was 86.71 % at a reaction temperature of 40 °C, a catalyst dosage of 1 g/L, a persulfate concentration of 4 mM, and pH=5. In conclusion, CuO/g-C3N4 has a broad application prospect as a catalyst.
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