【摘要】 采用浸渍法制备了H4SiW12O40/TiO2-ZrO2光催化剂,以光催化降解染料废水甲基橙为探针反应,探讨了催化剂投加量、溶液pH值对光催化降解效果的影响以及催化剂的重复使用性。结果表明,H4SiW12O40/TiO2-ZrO2催化剂具有更优越的光催化性能,当催化剂的用量为1.8 g/L,甲基橙溶液初始浓度为10 mg/L,pH=4时,反应4 h后甲基橙的降解率可达90%以上。更多还原

【Abstract】 H4SiW12O40/TiO2-ZrO2 was prepared by using impregnation method.Its activity for photocatalytic degradation of methyl orange in dye waste water was investigated.The influence of quality of catalyst and pH value of solution on photocatalytic degradation efficiency was studied.The reuse of the catalyst was discussed.The results show that the degradation rate of photocatalytic methyl orange is over 90% for 4 h when the amount of catalyst is 1.8 g/L and initial concentration of methyl orange is 10 mg/L in the pH=4 solution.The H4SiW12O40/TiO2-ZrO2 photocatalysts show better photocatalytic activity.更多还原