磷钨酸对甲基橙光催化降解的初步研究

在自制的光化学反应器中,以紫外灯为光源,以磷钨酸为光催化剂,研究了其对模拟甲基橙染料废水的光催化脱色降解的影响。实验结果表明,催化剂加入量、溶液初始浓度、不同光强度是影响催化降解效果的重要因素。最佳催化条件为20 mg/L的甲基橙溶液在紫外灯(16W)辐射下,光催化剂磷钨酸用量为1.5 g/L。

Photocatalytic Degradation of Methyl Orange Using Phosphotungstic Acid as Catalyst

In the photoreactor made by ourselves, irradiated by UV lamp, the phosphotungstic acid was used as the photocatalyst to degradate the methyl orange solution. It has been shown that the catalyst amount, the initial concentration of methyl orange and the UV irradiation intensity were an important factor of decolorizing efficiency. The best reaction condition was: the concentration of methyl orange was 20 mg/L, the amount of phosphotungstic acid was 1.5 g/L, and the ultraviolet radiation was 16W.