固体超强酸光催化降解大红染料的研究

Research on Solid Superacid for Photocatalytic Degradation of Scarlet Dye

通过自制的固体超强酸催化剂对大红染料废水进行光催化降解研究,考察了反应条件、催化剂投加量、pH值、紫外灯照射时间及染料初始浓度对光催化降解过程的影响,确定了最佳实验条件:催化剂投加量为2g/L,pH值为6,紫外灯照射时间为150min,大红染料浓度为100mg/L.在此基础上添加助催化剂和H2O2,降解率进一步提高.

This paper was mainly about photocatalytic degradation of scarlet dye on self-prepared solid superacid. The conditions of photocatalytic degradation such as reaction condition, the amounts of superacid catalyst, the time of ultraviolet irradiation, pH value and initial concentration of the solution were studied in the research. Optimum conditions were obtained： the amounts of catalyst added was 2 g/L, pH of the solution was 6, ultraviolet irradiation time was 150 min and the initial scarlet dye concentration was 100 mg/L. On the basis of this condition, the photo-assisted catalyst and H2O2 addition can enhance the degradation rate of scarlet dye.