IEECAS OpenIR  > 粉尘与环境研究室
Optical property variations from a precursor (isoprene) to its atmospheric oxidation products
Zeng, YL (Zeng, Yaling)[ 1,2 ]; Shen, ZX (Shen, Zhenxing)[ 1,2 ]; Zhang, T (Zhang, Tian)[ 1 ]; Lu, D (Lu, Di)[ 1 ]; Li, GH (Li, Guohui)[ 2 ]; Lei, YL (Lei, Yali)[ 1 ]; Feng, T (Feng, Tian)[ 2 ]; Wang, X (Wang, Xin)[ 3 ]; Huang, Y (Huang, Yu)[ 2 ]; Zhang, Q (Zhang, Qian)[ 1 ]; Xu, HM (Xu, Hongmei)[ 1 ]; Wang, QY (Wang, Qiyuan)[ 2 ]; Cao, JJ (Cao, Junji)[ 2 ]
2018-11
Source PublicationATMOSPHERIC ENVIRONMENT
Volume193Pages:198-204
Subtype期刊论文
Abstract

Isoprene is a crucial precursor of secondary organic aerosols (SOAs) that reacts with radicals or oxidants such as OH, O3, and NO3. The reaction mechanisms under various conditions have been elucidated through years of research. In this study, the UV–vis light absorptive ability of oxydates for isoprene was calculated at the PBE1PBE/6-311g (d) level using Gaussian 09. The results indicated that reactions of isoprene with OH and O3 would produce less absorptive organics; the intensity of the absorption peaks and the maximum absorption wavelength decreased relative to those of the precursor. The oxydates formed from isoprene through an NO3-initiated reaction had different light absorption properties. The optical properties of the oxydates exhibited a bathochromic shift and hyperchromic effect relative to those of the precursor. NO3 mainly originated from vehicular traffic, indicating that anthropogenic activity heavily affected the formation of oxydates and light absorption. The light absorption properties and irradiation effect of SOAs caused by isoprene heavily depended on the reaction route. Transformation of functional groups was the dominated factor in photobleaching and photoenhancement of oxidative products. This study provides a detailed mechanism that explains the changes in optical absorption properties during isoprene oxidation.

KeywordIsoprene Hydroxyl Radical Ozone No3 Optical Property Quantum Chemistry Calculation
DOI10.1016/j.atmosenv.2018.09.017
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9583
Collection粉尘与环境研究室
Corresponding AuthorShen, ZX (Shen, Zhenxing)[ 1,2 ]
Affiliation1.Department of Environmental Sciences and Engineering, Xi'an Jiaotong University, Xi'an, 710049, China;
2.Key Lab of Aerosol Chemistry & Physics, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, China;
3.Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, 55128, Germany
Recommended Citation
GB/T 7714
Zeng, YL ,Shen, ZX ,Zhang, T ,et al. Optical property variations from a precursor (isoprene) to its atmospheric oxidation products[J]. ATMOSPHERIC ENVIRONMENT,2018,193:198-204.
APA Zeng, YL .,Shen, ZX .,Zhang, T .,Lu, D .,Li, GH .,...&Cao, JJ .(2018).Optical property variations from a precursor (isoprene) to its atmospheric oxidation products.ATMOSPHERIC ENVIRONMENT,193,198-204.
MLA Zeng, YL ,et al."Optical property variations from a precursor (isoprene) to its atmospheric oxidation products".ATMOSPHERIC ENVIRONMENT 193(2018):198-204.
Files in This Item:
File Name/Size DocType Version Access License
1-s2.0-S135223101830(1642KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zeng, YL (Zeng, Yaling)[ 1,2 ]]'s Articles
[Shen, ZX (Shen, Zhenxing)[ 1,2 ]]'s Articles
[Zhang, T (Zhang, Tian)[ 1 ]]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zeng, YL (Zeng, Yaling)[ 1,2 ]]'s Articles
[Shen, ZX (Shen, Zhenxing)[ 1,2 ]]'s Articles
[Zhang, T (Zhang, Tian)[ 1 ]]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zeng, YL (Zeng, Yaling)[ 1,2 ]]'s Articles
[Shen, ZX (Shen, Zhenxing)[ 1,2 ]]'s Articles
[Zhang, T (Zhang, Tian)[ 1 ]]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.