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Photochemical reactions of 1,3-butadiene with nitrogen oxide in different matrices: Kinetic behavior, humidity effect, product and mechanisms
Wang, Qingliang; Li, Qianqian; Wei, Da; Su, Guijin; Wu, Mingge; Li, Chuanqi; Sun, Bohua; Dai, Lingwen
2020-06-15
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume721Pages:1-11
AbstractUnderstanding the photochemical reaction process between VOCs and co-pollutants in the troposphere is crucial for controlling the haze. The photochemical reactions of 1,3-butadiene (1,3-BD) with NO were carried out at 308 K for up to 96 h in clean air with various relative humidity (RH) values, and actual haze atmosphere. In the haze, the representative pseudo-first-order kinetic rate constants of the 1,3-BD-NO system was 1.53 time higher than those in dry clean air. The effect of the RH (0%-80%) on the conversion behavior of the 1,3-BD-NO system in clean air was studied, revealing that increasing RH promoted the photochemical reaction in the low range of 0%-40% but retarded it in the high range of 40%-80%. Interestingly, (OH)-O-center dot radicals were directly detected under different RH values, and the strongest (OH)-O-center dot signal was obtained at an RH of 40%. Multiple macromolecular products with carbon numbers of 10-36 were identified. Unexpectedly, richer products and extended unsaturation range were detected at an RH of 40% than 0%. The photochemical products were also analyzed using ion chromatography. A reaction mechanism was proposed from the detected NO2, O-3, (OH)-O-center dot, HNO2, HNO3, organic acids and macromolecular products. (C) 2020 Elsevier B.V. All rights reserved.
Department环境纳米技术与健康效应重点实验室
Keyword1,3-butadiene NO Kinetic behavior Products Photochemical reaction mechanism
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/44883
Collection环境纳米技术与健康效应重点实验室
Recommended Citation
GB/T 7714
Wang, Qingliang,Li, Qianqian,Wei, Da,et al. Photochemical reactions of 1,3-butadiene with nitrogen oxide in different matrices: Kinetic behavior, humidity effect, product and mechanisms[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,721:1-11.
APA Wang, Qingliang.,Li, Qianqian.,Wei, Da.,Su, Guijin.,Wu, Mingge.,...&Dai, Lingwen.(2020).Photochemical reactions of 1,3-butadiene with nitrogen oxide in different matrices: Kinetic behavior, humidity effect, product and mechanisms.SCIENCE OF THE TOTAL ENVIRONMENT,721,1-11.
MLA Wang, Qingliang,et al."Photochemical reactions of 1,3-butadiene with nitrogen oxide in different matrices: Kinetic behavior, humidity effect, product and mechanisms".SCIENCE OF THE TOTAL ENVIRONMENT 721(2020):1-11.
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