Experimental study of photooxidation products of ethylbenzene |
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| Authors: | Mingqiang Huang Weijun Zhang Liqing Hao Zhenya Wang Li Fang Ruihong Kong Xiaobin Shan Fuyi Liu and Liusi Sheng |
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| Institution: | 1. Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences,
Hefei 230031, China. E-mail: huangmingqiang@gmail.com
2. Laboratory of Environment Spectroscopy, Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
3. Department of Environmental Science and Engineering, Xiamen University, Tan Kah Kee College, Zhangzhou 363105, China,1. Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences,
Hefei 230031, China.
2. Laboratory of Environment Spectroscopy, Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China,1. Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences,
Hefei 230031, China.
2. Laboratory of Environment Spectroscopy, Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China,1. Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences,
Hefei 230031, China.
2. Laboratory of Environment Spectroscopy, Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China,1. Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences,
Hefei 230031, China.
2. Laboratory of Environment Spectroscopy, Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China,4. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China,4. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China,4. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China and 4. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China |
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| Abstract: | Smog chamber experiments were performed to investigate the composition of products formed from photooxidation of aromatic
hydrocarbon ethylbenzene. Vacuum ultraviolet photoionization mass spectrometer and aerosol time-of-flight mass spectrometer were
used to measure the products in the gas and particle phases in real-time. Experimental results demonstrated that ethylphenol,
methylglyoxal, phenol, benzaldehyde, and 2-ethylfurane were the predominant photooxidation products in both the gas and particle
phases. However, there were some di erences between detected gas phase products and those of particle phase, for example,
2-ethylfurane, ethylglyoxylic acid, nitroethylbenzene, 3,4-dioxopentanal and ethyl-nitrophenol were only existing in the particle-phase.
The possible reaction mechanisms leading to these products were also discussed and proposed. |
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| Keywords: | ethylbenzne secondary organic aerosol smog chamber desorption/ionization reaction mechanism |
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