Influence of Ammonium Sulfate Seed Particle on Optics and Compositions of Toluene Derived Organic Aerosol in Photochemistry
文献类型：期刊论文
| 作者 | Lu, Tingting1; Huang, Mingqiang1; Zhao, Weixiong2 ; Hu, Changjin2; Gu, Xuejun2; Zhang, Weijun2
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| 刊名 | ATMOSPHERE
 |
| 出版日期 | 2020-09-01 |
| 卷号 | 11 |
| 关键词 | secondary organic aerosol complex refractive index single-scattering albedo brown carbon imidazoles |
| DOI | 10.3390/atmos11090961 |
| 通讯作者 | Huang, Mingqiang(huangmingqiang@mnnu.edu.cn) ; Zhang, Weijun(wjzhangaiofm@gmail.com) |
| 英文摘要 | Aromatic secondary organic aerosol (SOA) particles are known to contribute to radiative forcing and light absorption of atmosphere. However, the complex refractive index (CRI), single-scattering albedo (SSA) and other optical parameters of aromatic SOA are not well understood. SOA generated from photooxidation of toluene with a variety concentration of ammonium sulfate ((NH4)(2)SO4) seed particles in a smog chamber were investigated in the current study. The real part CRI of toluene SOA without seeds derived and based on aerosol albedometer measurements is 1.486 +/- 0.002 at lambda = 470 nm, showing a good agreement with available experimental data, and its SSA was measured to be 0.92 +/- 0.02 at lambda = 470 nm, indicating that the SOA particles without seeds have strong scattering ability. The SSA of SOA formed in the presence of 300 mu g/m(3)(NH4)(2)SO(4)seed was 0.81 +/- 0.02 at lambda = 470 nm, less than the SSA of SOA without seed. SSA of SOA decreased, while the imaginary part of CRI (k) of SOA increased with increasing concentration of (NH4)(2)SO(4)seed, demonstrating that the adsorption capacity of SOA formed in the presence of (NH4)(2)SO(4)seed is enhanced. Different from the carboxyl compounds measured in the SOA without seed, imidazoles with strong chromophores of C=N that are responsible for the light absorption were detected as the principal constituents of SOA formed in the presence of (NH4)(2)SO(4)seed. These would provide valuable information for discussing the optics and components of aromatic SOA in the urban atmosphere containing a high concentration of (NH4)(2)SO(4)fine particles. |
| WOS关键词 | CHEMICAL-COMPOSITIONS ; REFRACTIVE-INDEX ; CROSS-SECTION ; PHOTOOXIDATION ; GLYOXAL ; OXIDATION ; PRODUCTS ; OH ; 1,3,5-TRIMETHYLBENZENE ; WAVELENGTH |
| 资助项目 | National Natural Science Foundation of China[41575118] ; National Natural Science Foundation of China[41575126] ; National Natural Science Foundation of China[41305109] ; Key Project of Foundation of Fujian Province of China[2020J06018] ; science and technology project of Minnan Normal University[4201-L11805] |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000580685300001 |
| 资助机构 | National Natural Science Foundation of China ; Key Project of Foundation of Fujian Province of China ; science and technology project of Minnan Normal University |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/104636]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Huang, Mingqiang; Zhang, Weijun |
| 作者单位 | 1.Minnan Normal Univ, Coll Chem & Chem Engn & Environm, Fujian Prov Key Lab Modern Analyt Sci & Separat T, Zhangzhou 363000, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Lab Atmospher Physicochem, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Tingting,Huang, Mingqiang,Zhao, Weixiong,et al. Influence of Ammonium Sulfate Seed Particle on Optics and Compositions of Toluene Derived Organic Aerosol in Photochemistry[J]. ATMOSPHERE,2020,11. |
| APA | Lu, Tingting,Huang, Mingqiang,Zhao, Weixiong,Hu, Changjin,Gu, Xuejun,&Zhang, Weijun.(2020).Influence of Ammonium Sulfate Seed Particle on Optics and Compositions of Toluene Derived Organic Aerosol in Photochemistry.ATMOSPHERE,11. |
| MLA | Lu, Tingting,et al."Influence of Ammonium Sulfate Seed Particle on Optics and Compositions of Toluene Derived Organic Aerosol in Photochemistry".ATMOSPHERE 11(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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