以BiFeO3和H2O2组成非均相类Fenton体系催化降解酸性复红(acidic fuchsin)染料废水.探讨了过氧化氢用量、反应时间、反应温度、催化剂用量、染料初始浓度以及pH值等因素的影响.实验结果显示在过氧化氢体积百分数为0.65%、反应时间为50 min、反应温度为303 K、催化剂用量为0.45 g/L、酸性复红溶液初始浓度为120 mg/L和pH值为7.5的最优条件下,废水脱色率>99%.降解过程动力学的初步研究说明该过程符合一级动力学方程,在303 K时表观速率常数和表观活化能分别为0.1011 min-1、23.04 kJ/mol.
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