PW_(12)/PANI/ZnO复合材料光催化降解亚甲基蓝

Photocatalytic Degradation of Methylene Blue by Composite Materials PW_(12)/PANI/ZnO

以PW12/PANI/ZnO为光催化剂。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,讨论了催化剂投加量、染料浓度、溶液的pH值对亚甲基蓝降解率的影响。结果表明,亚甲基蓝溶液光催化降解的最佳条件为:pH=3,催化剂投加量为0.012 5 g,染料浓度为5 mg/L,经30 W紫外灯照射90 min后,其降解率为85.84%。

The PW12/PANI/ZnO was researched as the photocatalyst to degradation of the methylene blue in solution under the UV ray. The influences of several operating parameters, such as the dosage of catalyst, initial dye concentration and pH on the photocatalytic degradation of methylene blue were investigated. The degradation rate of methylene blue was 85.84% with concentration 5 mg/L, PW12/PANI/ZnO 0. 012 5 g, pH =3 and 30 W ultraviolet light, and irradiation for 90 min.