摘要：

分别以Fe³⁺、Fe₂O₃/Al₂O₃为催化剂,在微波的协同作用下进行Fenton降解染料吖啶橙模拟废水的研究,考察了溶液pH、H₂O₂用量、催化剂用量等因素对其降解效果的影响。结果表明,催化剂与微波存在协同效应,当分别以浓度为1.6×10-4 mol/L的Fe³⁺、Fe₂O₃/Al₂O₃为催化剂,其最佳投加量分别为24 mL/L、8.0 g/L,pH为3.5,30%H₂O₂投加量为40μL/L时,可取得最佳降解效果,吖啶橙的降解率分别达到99%、97%以上。

关键词: 类Fenton反应, 微波, 吖啶橙, 催化氧化

Abstract:

Using Fe³⁺, Fe₂O₃/Al₂O₃ as catalysts respectively, the Fenton degradation of acridine orange simulated wastewater by the synergistic effect of micro-wave has been studied. The effects of the factors, such as pH of the dyestuff solution, H₂O₂ and catalyst dosages on degradation efficiency are investigated. The results show that there have been synergistic effect of micro-wave in the presence of catalysts Fe³⁺ or Fe₂O₃/Al₂O₃. The Fe³⁺ concentration is 1.6×10-4 mol/L，and the catalysts are Fe³⁺ and Fe₂O₃/Al₂O₃. When their optimum dosages are 24 mL/L, and 8.0 g/L, respectively, both pH are 3.5, and the dosage of 30% H2O2 is 40 μL/L, the optimum degradation rate of acridine orange can be obtained. Their degradation rates are more than 99%，97% respectively.

Key words: heterogeneous Fenton-like reaction, microwave, acridine orange, catalytic oxidation

中图分类号: 

• X703.1