Free radicals generated in photocatalytic oxidation of some organic compounds containing nitrogen atoms |
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作者姓名: | Chen Ciping Lu Daohui Xu Guangzhi |
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作者单位: | Institute of Photographic Chemistry,Chinese Academy of Sciences,Beijing 100101,China,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080,China,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080,China |
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摘 要: | Free radical intermediates generated in photocatalytic oxidation of some organic compound containing nitrogen atoms such as butylamine,piperidine,pyridine and so on were detected by spin trapping technique.The ESR spectra of N-centered radical adduct and C-centered radical adduct were observed.Experiment results reveal that these radicals are participants in the initial steps of photodegradation of these compounds. A mechanism which is consistent with the observation of these radicals species is elucidated.
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关 键 词: | free radicals;photocatalytic oxidation;organic compounds;ESR spectra;spin trapping technique. |
收稿时间: | 1993-06-03 |
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