微波辅助催化氧化罗丹明B废水研究

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

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%。

Combining Fenton-like oxidation system with magnetic nanoparticles CuFeaO4, and used it to treat rhodamine B wastewater under microwave assisted condition, the influencing factors were studied systematically. 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%.