| Fe(Ⅱ)/K_2S_2O_8对水体中As(Ⅲ)的氧化研究 |
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| 引用本文： | 郑伟,杨曦,张金凤,张川,孔令仁.Fe(Ⅱ)/K_2S_2O_8对水体中As(Ⅲ)的氧化研究[J].环境科学与技术,2007,30(11):41-42,57. |
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| 作者姓名： | 郑伟 杨曦 张金凤 张川 孔令仁 |
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| 作者单位： | 污染控制与资源化研究国家重点实验室,南京大学环境学院,南京,210093 |
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| 摘 要： | 研究了Fe(Ⅱ)/K2S2O8对水体中As(Ⅲ)的氧化作用,以及pH值、Fe(Ⅱ)初始浓度等因素对氧化As(Ⅲ)的影响,并且采用分子探针法的竞争性实验鉴定了体系中产生的活性中间体,探讨了K2S2O8在Fe(Ⅱ)存在的条件下对As(Ⅲ)的氧化机理。
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| 关 键 词： | As(Ⅲ) Fe(Ⅱ) 过硫酸钾 硫酸根自由基 羟基自由基 |
| 文章编号： | 1003-6504（2007）11-0041-03 |
| 修稿时间： | 2006-11-172007-02-26 |
Oxidation of As (Ⅲ) by Fe(Ⅱ)/K2S2O8 |
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| ZHENG Wei,YANG Xi,ZHANG Jin-feng,ZHANG Chuan,KONG Ling-ren.Oxidation of As (Ⅲ) by Fe(Ⅱ)/K2S2O8[J].Environmental Science and Technology,2007,30(11):41-42,57. |
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| Authors: | ZHENG Wei YANG Xi ZHANG Jin-feng ZHANG Chuan KONG Ling-ren |
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| Abstract: | Oxidation of As(Ⅲ) in water by iron(Ⅱ)-catalyzed potassium persulfate as well as the influence of various pH and initial concentration of Fe(Ⅱ) was investigated. The potential radicals and possible oxidation mechanism were also studied. |
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| Keywords: | As(Ⅲ) Fe(Ⅱ) potassium persulfate sulfate radical hydroxyl radical |
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