α-(NH_4)_6[SiW_(11)(H_2O)O_(39)]·xH_2O光催化降解亚甲基蓝溶液的研究

以标题化合物为催化剂,在紫外灯辐射下,研究了模拟染料废水亚甲基蓝溶液的光催化降解的反应,详细讨论了催化剂投加量、亚甲基蓝溶液的初始浓度、酸度等对催化脱色效果的影响.结果表明,100mL的亚甲基蓝溶液在紫外灯辐射下最佳的浓度为5 mg/L,催化剂用量为0.11g/L,溶液酸度为pH=1;在不改变溶液酸度的情况下,外加氧化剂H2O2能够显著加速亚甲基蓝的催化降解效果.

Study on photocatalytic degradation of electronic spectra of methylene blue in solution with α -(NH4)6[SiW11(H2O)O39]·xH2O

The title compound was researched as the photocatalyst to degradation of the methylene blue in solution und-er the UV ray.The effects of the catalyst quantity,the initial concentration of the methylene blue and the solution pH on decolorizing efficiency of the solution were discussed in detail.The results of the experimentation show the op-timum catalytic conditions are that the concentration of the 100 mL methylene blue is 5 mg/L,the amount of catalyst is 0.11 g/L and the pH value of the solution is 1 with ultraviolet radiation.Otherwise,H2O2 can strikingly accelerate the photocatalytic degradation of methylene blue.