过氧化氢和卤离子对亚甲基蓝光化学降解的影响  

Effects of hydrogen peroxide and Cl^-/Br^-/I^- on the photochemical degradation of methylene blue

作　　者：朱燕[1] 郁志勇[1] 孙震[1] 李洁[1] 

机构地区：[1]中国人民大学环境学院,北京100872

出　　处：《安徽大学学报（自然科学版）》2004年第3期75-78,共4页Journal of Anhui University(Natural Science Edition)

基　　金：中国人民大学科研经费资助项目(1999年)

摘　　要：使用静态方法研究过氧化氢和Cl-/Br-/I-对亚甲基蓝光化学降解的影响。在实验条件下,紫外光不能降解10mg/L亚甲基蓝。H2O2能够显著加速亚甲基蓝光化学降解,Cl-/Br-/I-对亚甲基蓝光化学降解没有影响。Cl-对H2O2的加速作用没有影响,Br-能够明显抑制H2O2的加速作用,I-在浓度较低时能够明显抑制H2O2的加速作用,在浓度较高时能起增强H2O2的加速作用。In this paper, effects of hydrogen peroxide and Cl^-/Br^-/I^- on the photochemical degradation of methylene blue (MB) are studied by static method. Under experimental conditions, 10mg/L MB can't be degraded by UV light. H_2O_2 can strikingly accelerate the photochemical degradation of MB, Cl^-/Br^-/I^- has no influence on the photochemical degradation of MB. Cl^- has no influence on the acceleration effect of H_2O_2 on the photochemical degradation of MB, Br^- can evidently inhibit the acceleration effect of H_2O_2, I^- with low concentration can evidently inhibit the acceleration effect of H_2O_2, but with high concentration can increase the acceleration effect of H_2O_2.

关 键 词：过氧化氢 卤离子 亚甲基蓝 光化学降解 染料 废水处理 

分 类 号：X791.031[环境科学与工程—环境工程] X13