微波辅助催化氧化罗丹明B废水研究

通过将Fenton氧化体系与磁性纳米粒子CuFe_2O_4结合使用,在微波辅助的条件下应用于罗丹明B废水的高效处理中,并对影响因素进行了系统研究。结果显示,使用CuFe_2O_4作为催化剂的氧化体系,在p H值为4.0,反应温度为80℃,罗丹明B初始质量浓度为100 mg/L,CuFe_2O_4投加量为1 125 mg/L,H_2O_2投加量为2.5 m L/L,反应时间为2 min的条件下,可以将罗丹明B废水的去除率提高至接近100%。

A study of rhodamine B wastewater treatment by microwave assisted catalytic oxidation

Combining Fenton-like oxidation system with magnetic nanoparticles CuFe2O4, and used it to treat rhodamine B wastewater under microwave assisted condition, the influencing factors were studied systemati-cally. The results showed that, in the oxidation system with CuFe2O4 as the catalyst, under the condition that the pH value was 4.0, the reaction temperature was 80℃, the initial mass concentration of rhodamine B was 100 mg/L, the dosage of CuFe2O4 and H2O2 were 1 125 mg/L and 2.5 mL/L respectively, the reaction time was 2 min, the removal rate of rhodamine B could reach nearly 100%.