Decreasing effect and mechanism of FeSO4 seed particles on secondary organic aerosol in alpha-pinene photooxidation
文献类型：期刊论文
| 作者 | Chu, Biwu ; Liu, Yongchun ; Li, Junhua ; Takekawa, Hideto ; Liggio, John ; Li, Shao-Meng ; Jiang, Jingkun ; Hao, Jiming ; He, Hong |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2014 |
| 卷号 | 193期号:1页码:88-93 |
| 关键词 | Secondary organic aerosol FeSO4 seed particle alpha-Pinene Decreasing effect Relative humidity |
| ISSN号 | 0269-7491 |
| 中文摘要 | alpha-Pinene/NOx and alpha-pinene/HONO photooxidation experiments at varying humidity were conducted in smog chambers in the presence or absence of FeSO4 seed particles. FeSO4 seed particles decrease SOA mass as long as water was present on the seed particle surface, but FeSO4 seed particles have no decreasing effect on SOA under dryer conditions at 12% relative humidity (RH). The decreasing effect of FeSO4 seed particles on the SOA mass is proposed to be related to oxidation processes in the surface layer of water on the seed particles. Free radicals, including OH, can be formed from catalytic cycling of Fe2+ and Fe3+ in the aqueous phase. These radicals can react further with the organic products of alpha-pinene oxidation on the seed particles. The oxidation may lead to formation of smaller molecules which have higher saturation vapor pressures and favor repartitioning to the gas phase, and therefore, reduces SOA mass. (C) 2014 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/). |
| WOS记录号 | WOS:000341471300012 |
| 公开日期 | 2015-03-24 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9270]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 推荐引用方式 GB/T 7714 | Chu, Biwu,Liu, Yongchun,Li, Junhua,et al. Decreasing effect and mechanism of FeSO4 seed particles on secondary organic aerosol in alpha-pinene photooxidation[J]. ENVIRONMENTAL POLLUTION,2014,193(1):88-93. |
| APA | Chu, Biwu.,Liu, Yongchun.,Li, Junhua.,Takekawa, Hideto.,Liggio, John.,...&He, Hong.(2014).Decreasing effect and mechanism of FeSO4 seed particles on secondary organic aerosol in alpha-pinene photooxidation.ENVIRONMENTAL POLLUTION,193(1),88-93. |
| MLA | Chu, Biwu,et al."Decreasing effect and mechanism of FeSO4 seed particles on secondary organic aerosol in alpha-pinene photooxidation".ENVIRONMENTAL POLLUTION 193.1(2014):88-93. |
入库方式： OAI收割
来源：生态环境研究中心
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