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以硝酸银、磷酸氢二钠为主要原料,采用水热法制备了高催化活性Ni~(2+)离子掺杂磷酸银(Ag_3PO_4)光催化剂,通过XRD、SEM、FT-IR、UV-Vis、DRS和PL等对其进行表征。以亚甲基蓝溶液为模拟废液进行光催化降解实验来评价磷酸银光催化活性,探讨了掺杂不同摩尔质量Ni~(2+)离子对产物催化性能的影响。结果表明,产物为立方晶相磷酸银纳米微球。0.08g试样经过可见光催化降解浓度为8mg/L的亚甲基蓝溶液(200mL),催化降解6min后,掺杂摩尔分数为2%Ni~(2+)的Ag_3PO_4样品降解率为94.52%,3次循环降解后,降解率达仍达到89.76%。
Silver nitrate and sodium hydrogen phosphate were used as main raw materials to prepare high-activity Ag2 + -doped silver phosphate (Ag3PO4) photocatalyst by hydrothermal method. XRD, SEM, FT-IR and UV-Vis , DRS and PL, etc. to characterize it. The photocatalytic activity of silver phosphate was evaluated by photocatalytic degradation of methylene blue solution as simulated waste liquid. The effects of doping different concentrations of Ni 2+ ions on the catalytic performance of the product were discussed. The results show that the product is cubic silver phosphate nano-microspheres. The degradation rate of Ag_3PO_4 sample doped with 2% Ni 2+ was 94.52% after 3 cycles of 0.08g sample degradation by visible light and methylene blue solution (200mL) with the concentration of 8mg / L. After degradation, the degradation rate still reached 89.76%.