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研究了N2/Ar介质阻挡放电处理对负载CuO的TiO2可见光光催化活性的影响.采用X射线衍射、紫外-可见分光吸收光谱、透射电镜、X射线光电子能谱和电子自旋共振进行了表征,详细考察了等离子改性参数包括气氛组成、处理时间和处理功率对改性效果的影响,并通过降解甲基橙溶液考察了可见光光催化活性.结果表明,最佳等离子处理条件为N2与Ar比例为8:2,处理时间为20 min,放电电流为1.0 A.最后,使用改性后的光催化剂对模拟含汞废水进行了处理.
The effects of N2 / Ar dielectric barrier discharge on the photocatalytic activity of CuO-doped TiO2 were investigated by X-ray diffraction, UV-Vis absorption spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and electron spin resonance The effects of atmosphere composition, treatment time and treatment power on the modification were investigated in detail, and the photocatalytic activity of visible light was evaluated by degradation of methyl orange solution.The results showed that the optimal plasma treatment conditions were N2 and Ar ratio 8: 2, the treatment time was 20 min and the discharge current was 1.0 A. Finally, the simulated mercury-containing wastewater was treated with the modified photocatalyst.