| 甲基过氧化氢的紫外光解反应机理 |
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| 引用本文： | 王彩霞,陈忠明,徐金荣.甲基过氧化氢的紫外光解反应机理[J].光谱学与光谱分析,2006,26(12):2222-2225. |
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| 作者姓名： | 王彩霞 陈忠明 徐金荣 |
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| 作者单位： | 北京大学环境学院, 环境模拟与污染控制国家重点联合实验室, 北京 100871 |
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| 基金项目： | 国家自然科学基金
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国家重点基础研究发展计划(973计划)
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教育部优秀青年教师资助计划 |
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| 摘 要： | 甲基过氧化氢(CH3OOH)是大气中一种主要的有机过氧化物，它的生成和去除过程将影响大气自由基的浓度水平。文章利用长光路傅里叶变换红外光谱(LP-FTIR) 原位跟踪技术，实验室模拟研究了CH3OOH在常温和常压大气条件下的紫外光解反应，发现光解产物为HCHO，HC(O)OH，CH3OH，CO和CO2,此外实验中还观测到OH自由基的生成。根据分析结果推测了反应机理，并讨论了其大气化学意义。
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| 关 键 词： | 甲基过氧化氢 大气 紫外光解 反应机理 FTIR |
| 文章编号： | 1000-0593（2006）12-2222-04 |
| 收稿时间： | 2005-12-10 |
| 修稿时间： | 2006-02-20 |
Reaction Mechanisms of the UV-Photolysis of Methyl Hydroperoxide |
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| WANG Cai-xia,CHEN Zhong-ming,XU Jin-rong.Reaction Mechanisms of the UV-Photolysis of Methyl Hydroperoxide[J].Spectroscopy and Spectral Analysis,2006,26(12):2222-2225. |
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| Authors: | WANG Cai-xia CHEN Zhong-ming XU Jin-rong |
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| Institution: | The State Key Laboratory of Environmental Simulation and Pollution Control, Center for Environmental Sciences, Peking University, Beijing 100871, China |
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| Abstract: | Methyl hydroperoxide(CH_3OOH) is one of the main organic peroxides in the atmosphere,and its formation and(removal) processes will have a significant impact on the concentration level of the atmospheric radicals.In the present paper,the technique of long path Fourier transform infrared(LP-FTIR) spectrometry was used for the in-situ investigation of the UV-photolysis of CH_3OOH under atmospheric conditions at normal temperature and pressure.The products of photolysis were identified as HCHO,HC(O)OH,CH_3OH,CO and CO_2.Moreover,OH radicals were also detected.Finally,the mechanisms of this reaction were extrapolated on the basis of the analysis results,and the atmospheric implications were discussed. |
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| Keywords: | Methyl hydroperoxide Atmosphere UV-photolysis Reaction mechanisms FTIR |
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