| 瞬态吸收光谱技术研究4-氯酚水相降解的微观反应 |
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| 引用本文： | 王淑惠,于勇,潘循皙,侯惠奇.瞬态吸收光谱技术研究4-氯酚水相降解的微观反应[J].环境化学,2001,20(2):160-167. |
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| 作者姓名： | 王淑惠 于勇 潘循皙 侯惠奇 |
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| 作者单位： | 复旦大学环境科学研究所, |
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| 基金项目： | 国家自然科学基金资助项目,批准号:29777003 |
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| 摘 要： | 利用瞬态吸收光谱技术进行了不同条件下４－氯酚水溶液的电子脉冲辐解,分别研究了体系中瞬时出现的·ＯＨ,Ｈ和水合电子等活性粒子与溶质的反应．对瞬态吸收光谱中的主要吸收峰做了归属,得到了ＯＨ－ａｄｄｕｃｔ,Ｈ－ａｄｄｕｔ和氯代酚氧基等一系列中间产物,并初步研究了这些瞬态物种的生长、衰减行为和可能的反应机理,得出了一些微观反应的速率常数．
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| 关 键 词： | 有机污染物 4－氯酚 自由基 瞬态吸收光谱 脉冲辐解 水相降解 |
STUDIES ON MICROSCOPIC REACTIONS IN DEGRADATION PROGRESS OF 4-CHLOROPHENOL IN WATER SOLUTION WITHTRANSIENT ABSORPTION SPECTRUM |
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| Wang Shuhui,Yu Yong,PAN Xunxi,Hou Huiqi.STUDIES ON MICROSCOPIC REACTIONS IN DEGRADATION PROGRESS OF 4-CHLOROPHENOL IN WATER SOLUTION WITHTRANSIENT ABSORPTION SPECTRUM[J].Environmental Chemistry,2001,20(2):160-167. |
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| Authors: | Wang Shuhui Yu Yong PAN Xunxi Hou Huiqi |
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| Abstract: | The pulse radiolysis of 4-chlorophenol in different water solutions was studied with transient absorption spectrum.In this system,active particles such as *OH radical,hydrated electron and H atom that result from radiolysis of water can react with the solute.We studied the main absorption peaks in these spectra and found the main intermediate products such as OH-adduct,H-adduct and chlorinated phenoxyl radical.The build-up and decay of the transient species as well as the reaction mechanism were also studied.Several reaction rate constants were calculated. |
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| Keywords: | 4-chlorophenol free radical transient absorption spectrum pulse radiolysis |
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