金属催化剂对Fenton试剂活性的影响因素分析  

The influence factors analysis of metal catalyst to the activity of Fenton reagent

作　　者：周红星[1] 

机构地区：[1]唐山学院土木工程系,河北唐山063000

出　　处：《粉末冶金工业》2016年第1期56-59,共4页Powder Metallurgy Industry

基　　金：河北省科学技术研究与发展计划项目(13214521);唐山市科学技术研究与发展计划项目(131302109b);唐山学院市属重点实验室基金项目(13009 B)

摘　　要：在分析Fenton氧化法作用机理的基础上,研究了金属催化剂Fe^(2+)/Fe^(3+)对Fenton试剂活性的影响。结果表明:Fe^(2+)和Fe^(3+)对Fenton试剂活性均具有催化作用,Fe^(2+)催化作用远大于Fe^(3+)催化作用;在H_2O_2投加量为12 mmol/L,反应温度为25℃,反应时间为25 min条件下,[Fe^(2+)]/[H_2O_2]的物质的量比为1∶10时,焦化含酚废水COD去除率最高达到90.2%(质量分数);在光照特别是紫外线协同作用下,Fe^(2+)和Fe^(3+)活性增大,且Fe^(3+)的活性增强趋势明显高于Fe^(2+)。Based on the analysis of Fenton oxidation mechanism,the influence of metal catalyst Fe^（2＋）/Fe^（3＋）on activity of Fenton reagent was studied. The results show that,Fe^（2＋）and Fe^（3＋）both have catalytic effect on the activity of Fenton reagent,and Fe^（2＋）has more catalysis than Fe3＋. The removal rate of wastewater COD in coking phenol reaches 90.2%（mass percent） with the H_2O_2 dosage of 12 mmol/L,reaction temperature of 25 ℃,reaction time of 25 min,and the molar ratio of [Fe^（2＋）]/[H_2O_2] is 1∶10. The activity of Fe^（2＋）and Fe^（3＋）increases with synergistic effect of light,especially ultraviolet ray. The enhancement tendency of Fe^（3＋）is significantly higher than that of Fe^（2＋）.

关 键 词：金属催化剂 Fe2+/Fe3+ FENTON试剂 苯酚废水 

分 类 号：O643.36[理学—物理化学]