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首页> 外文期刊>Chinese science bulletin >Photodegradation of N-nitrosodiethylamine in water with UV irradiation
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Photodegradation of N-nitrosodiethylamine in water with UV irradiation

机译：紫外光降解水中的N-亚硝基二乙胺

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摘要

The direct photolysis of N-nitrosodiethylamine (NDEA) in water with ultraviolet (UV) irradiation was investigated. Results showed that NDEA could be completely degraded under the direct UV irradiation. The effects of the experimental conditions, including the initial concentration of NDEA, humic acid and solution pH, were studied. The degradation products of NDEA were identified and quantified with gas chromatography-mass spectrometry (GC-MS) and high performance liquid chromatography (HPLC). It was confirmed that methylamine (MA), dimethylamine (DMA), ethylamine (EA), diethylamine (DEA), NO2- and NO3- were the main degradation products. The photolysis degradation mechanism of NDEA was also discussed. As a result of N-N bond fission, NDEA was degraded by direct UV irradiation.
机译：研究了N-亚硝基二乙胺（NDEA）在紫外线（UV）照射下的直接光解。结果表明，NDEA可以在直接紫外线照射下完全降解。研究了实验条件的影响，包括NDEA的初始浓度，腐殖酸和溶液pH值。 NDEA的降解产物通过气相色谱-质谱（GC-MS）和高效液相色谱（HPLC）进行鉴定和定量。证实了主要的降解产物是甲胺（MA），二甲胺（DMA），乙胺（EA），二乙胺（DEA），NO2-和NO3-。还讨论了NDEA的光解降解机理。 N-N键裂变的结果是，NDEA被直接紫外线辐射降解。

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