Optical properties of secondary organic aerosols generated by photooxidation of aromatic hydrocarbons
文献类型：期刊论文
| 作者 | Li, Kun1; Wang, Weigang1; Ge, Maofa1; Li, Jiangjun2; Wang, Dong2 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2014-05-12 |
| 卷号 | 4 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/srep04922 |
| 英文摘要 | The refractive index (RI) is the fundamental characteristic that affects the optical properties of aerosols, which could be some of the most important factors influencing direct radiative forcing. The secondary organic aerosols (SOAs) generated by the photooxidation of benzene, toluene, ethylbenzene and m-xylene (BTEX) under low-NOx and high-NOx conditions are explored in this study. The particles generated in our experiments are considered to be spherical, based on atomic force microscopy (AFM) images, and nonabsorbent at a wavelength of 532 nm, as determined by ultraviolet-visible light (UV-Vis) spectroscopy. The retrieved RIs at 532 nm for the SOAs range from 1.38-1.59, depending on several factors, such as different precursors and NOx levels. The RIs of the SOAs are altered differently as the NOx concentration increases as follows: the RIs of the SOAs derived from benzene and toluene increase, whereas those of the SOAs derived from ethylbenzene andm-xylene decrease. Finally, by comparing the experimental data with the model values, we demonstrate that the models likely overestimate the RI values of the SOA particles to a certain extent, which in turn overestimates the global direct radiative forcing of the organic particles. |
| 语种 | 英语 |
| WOS记录号 | WOS:000335641600004 |
| 出版者 | NATURE PUBLISHING GROUP |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/51517]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Weigang |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, BNLMS, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Kun,Wang, Weigang,Ge, Maofa,et al. Optical properties of secondary organic aerosols generated by photooxidation of aromatic hydrocarbons[J]. SCIENTIFIC REPORTS,2014,4. |
| APA | Li, Kun,Wang, Weigang,Ge, Maofa,Li, Jiangjun,&Wang, Dong.(2014).Optical properties of secondary organic aerosols generated by photooxidation of aromatic hydrocarbons.SCIENTIFIC REPORTS,4. |
| MLA | Li, Kun,et al."Optical properties of secondary organic aerosols generated by photooxidation of aromatic hydrocarbons".SCIENTIFIC REPORTS 4(2014). |
入库方式： OAI收割
来源：化学研究所
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