| Fe^0还原土壤中不同结构甲基和氯代硝基苯 |
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| 引用本文： | 陈宜菲,陈少瑾.Fe^0还原土壤中不同结构甲基和氯代硝基苯[J].环境科学与管理,2008,33(11):69-71. |
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| 作者姓名： | 陈宜菲 陈少瑾 |
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| 作者单位： | 韩山师范学院环境化学应用技术研究所,广东潮州521041 |
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| 摘 要： | 采用零价铁（Fe^0）在常温常压下分别还原土壤中邻、间、对三种氯代硝基苯和硝基甲苯。结果表明：相同取代基在苯环上不同取代位置对还原率的影响差别不大。在硝基芳烃化合物浓度约为2．5×10^-6mol／g，Fe^0加入量为50mg／g，25℃条件下，经过5天反应，邻、间、对三种硝基甲苯的还原率均在70％左右，三种氯代硝基苯的还原率则在90％以上。结合计算机模拟所得的六种硝基芳烃的质子亲和力和电子亲和力，对硝还原这两类硝基芳烃的机理进行了初步探讨。
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| 关 键 词： | 零价铁 还原 硝基甲苯 氯硝基苯 |
Reduction of Methyl and Chloro Substituted Nitrobenzenes in Soils by Zero-valent Iron |
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| Chen Yifei,Cheng Shaojin.Reduction of Methyl and Chloro Substituted Nitrobenzenes in Soils by Zero-valent Iron[J].Environmental Science and Management,2008,33(11):69-71. |
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| Authors: | Chen Yifei Cheng Shaojin |
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| Institution: | Chen Yifei, Cheng Shaojin (Research Institute of Environmental Chemistry.and Technology, Hanshan Normal University, Chaozhou 521041, China) |
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| Abstract: | At ambient temperature and pressure, Zero -valent iron（ZVI）was used to decompose nitrotoluene（NT） and chloronitrobenzene（CNB） in soils. Experimental results showed that neither NT nor CNB has obvious difference among three substituted locations（o - ,m - ,p - ） on nitrobenzenes. It was found that about 70% of NT and 90% of CNB in soils could be reduced after 5 days of reaction with 50 mg/g of ZVI and at the temperature of 25℃. In addition, possible mechanisms of the reduction reaction was proposed and discussed with proton and electron of the chloro and methyl substituted nitrobenzencs calculated by computer. |
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| Keywords: | zero - valent iron （ ZVI ） reduction Nitrotoluene （NT） chloronitrobenzene （CNB） |
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