PW_(12)/SnO_2复合光催化剂降解亚甲基蓝废水的研究

Photocatalytic Degradation of Methylene Blue by PW_(12)/SnO_2 Composite Photocatalyst

以PW_(12)/Sn O_2为光催化剂,研究了其对亚甲基蓝染料废水的降解性能,考察了亚甲基蓝溶液的p H值、PW_(12)/Sn O_2的用量和催化剂种类等条件对亚甲基蓝光催化降解的影响。结果表明,当催化剂的用量为100 mg/L,p H值为3,亚甲基蓝溶液的质量浓度为10 mg/L时,在15W紫外灯照射下,亚甲基蓝的降解率为95.9%。

The PW12/SnO2 was researched as the photocatalyst to degradation of the methylene blue. The influences of the dosage of catalyst, initial pH and different catalysts on the photocatalytic degradation of methylene blue were investigated. The degradation rate of methylene blue with PW12/SnO2 was 95.9% under 15 W ultraviolet light irradiation at pH 3, the initial concentration of methylene blue is 10 mg/L and the amount of catalyst is 100 mg/L.