Increased primary and secondary H(2)SO(4 )showing the opposing roles in secondary organic aerosol formation from ethyl methacrylate ozonolysis
文献类型：期刊论文
| 作者 | Zhang, Peng; Chen, Tianzeng; Liu, Jun; Xu, Guangyan ; Ma, Qingxin; Chu, Biwu; Sun, Wanqi; He, Hong
|
| 刊名 | ATMOSPHERIC CHEMISTRY AND PHYSICS
 |
| 出版日期 | 2021-05-10 |
| 卷号 | 21期号:9页码:7099-7112 |
| ISSN号 | 1680-7316 |
| 英文摘要 | Stressed plants and polymer production can emit many unsaturated volatile organic esters (UVOEs). However, secondary organic aerosol (SOA) formation of UVOEs remains unclear, especially under complex ambient conditions. In this study, we mainly investigated ethyl methacrylate (EM) ozonolysis. Results showed that a substantial increase in secondary H2SO4 particles promoted SOA formation with increasing SO2. An important reason was that the homogeneous nucleation of more H2SO4 at high SO2 level provided greater surface area and volume for SOA condensation. However, increased primary H(2)SO(4 )with seed acidity enhanced EM uptake but reduced SOA formation. This was ascribed to the fact that the ozonolysis of more adsorbed EM was hampered with the formation of surface H2SO4 at higher particle acidity. Moreover, the increase in secondary H2SO4 particle via homogeneous nucleation favored to the oligomerization of oxidation products, whereas the increasing of primary H2SO4 with acidity in the presence of seed tended to promote the functionalization conversion products. This study indicated that the role of increased H2SO4 to EM-derived SOA may not be the same under different ambient conditions, which helps to advance our understanding of the complicated roles of H2SO4 in the formation of EM-derived SOA. |
| WOS研究方向 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46048]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100085, Peoples R China 4.CMA Meteorol Observat Ctr, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Peng,Chen, Tianzeng,Liu, Jun,et al. Increased primary and secondary H(2)SO(4 )showing the opposing roles in secondary organic aerosol formation from ethyl methacrylate ozonolysis[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2021,21(9):7099-7112. |
| APA | Zhang, Peng.,Chen, Tianzeng.,Liu, Jun.,Xu, Guangyan.,Ma, Qingxin.,...&He, Hong.(2021).Increased primary and secondary H(2)SO(4 )showing the opposing roles in secondary organic aerosol formation from ethyl methacrylate ozonolysis.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(9),7099-7112. |
| MLA | Zhang, Peng,et al."Increased primary and secondary H(2)SO(4 )showing the opposing roles in secondary organic aerosol formation from ethyl methacrylate ozonolysis".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.9(2021):7099-7112. |
入库方式： OAI收割
来源：生态环境研究中心
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