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Response characteristics of sulfate radicals in water treatment
Author(s): 
Pages: 3493-3499
Year: Issue:  36
Journal: Chinese Science Bulletin

Keyword:  硫酸自由基 羟自由基 α-H π电子;
Abstract: 从反应机理上解释了.OH和SO4.相似的原因,研究了硫酸自由基(SO4.)在水处理中的反应特性,探讨了其夺取有机物中C==C键、苯环上π电子和H能力的强弱.一般情况,SO4.的反应活性次序是:夺非芳香π电子>夺芳香π电子(苯系)>夺α-H>夺非α-H.SO4.降解有机物的效率除与有机物结构有关外,还与所处的介质环境有关,即与周围物质的碰撞几率相关,在水处理中由于SO4.与H2O分子反应的机会最多,一部分SO4.夺取H2O分子中H,生成羟自由基.
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