Effect of aluminium dust on secondary organic aerosol formation in m-xylene/NOx photo-oxidation
文献类型：期刊论文
| 作者 | Liu Chang; Ma QingXin; Chu BiWu; Liu YongChun; He Hong; Zhang XiaoYe; Li JunHua; Hao JiMing |
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2015-02 |
| 卷号 | 58期号:2页码:245-254 |
| 关键词 | aromatic hydrocarbon m-xylene aluminium SOA aerosol size smog chamber |
| 英文摘要 | As an important anthropogenic volatile organic compound (VOC), m-xylene has attracted numerous attentions due to its potential in secondary organic aerosol (SOA) formation. In this study, effects of aluminium dust seeds (boehmite and alumina) on SOA yield and aerosol size in m-xylene/NOx photo-oxidation were investigated in a 2 m(3) smog chamber at 30 degrees C and 50% relative humidity. Compared to the seed-free system, the presence of aluminium seeds resulted in an increase in the SOA yield, and also enhanced the O-3 concentration in the chamber. The photolysis of O-3 is a major source of OH radical, which is the most important oxidant of m-xylene. The increase in O-3 concentration could result in the generation of more OH radicals, and finally contribute to the SOA formation. Seed particles influence the SOA size mainly by acting as condensation nuclei. Semi-volatile organic compounds (SVOCs) were condensed onto these nuclei, resulting in the increase in SOA size. However, when aluminium seeds with high concentrations were introduced into the system, SVOCs that had been condensed onto each particle were dispersed by these seeds, leading to the reduction in aerosol size. |
| 研究领域[WOS] | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000348120900007 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32469]  |
| 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 | Liu Chang,Ma QingXin,Chu BiWu,et al. Effect of aluminium dust on secondary organic aerosol formation in m-xylene/NOx photo-oxidation[J]. SCIENCE CHINA-EARTH SCIENCES,2015,58(2):245-254. |
| APA | Liu Chang.,Ma QingXin.,Chu BiWu.,Liu YongChun.,He Hong.,...&Hao JiMing.(2015).Effect of aluminium dust on secondary organic aerosol formation in m-xylene/NOx photo-oxidation.SCIENCE CHINA-EARTH SCIENCES,58(2),245-254. |
| MLA | Liu Chang,et al."Effect of aluminium dust on secondary organic aerosol formation in m-xylene/NOx photo-oxidation".SCIENCE CHINA-EARTH SCIENCES 58.2(2015):245-254. |
入库方式： OAI收割
来源：生态环境研究中心
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