Experimental study of photooxidation products of ethylbenzene

作     者：Mingqiang Huang Weijun Zhang Liqing Hao Zhenya Wang Li Fang Ruihong Kong Xiaobin Shan Fuyi Liu Liusi Sheng 

作者机构：Key Laboratory of Atmospheric Composition and Optical Radiation Anhui Institute of Optics & Fine Mechanics Chinese Academy of Sciences Hefei 230031 China. Laboratory of Environment Spectroscopy Anhui Institute of Optics & Fine Mechanics Chinese Academy of Sciences Hefei 230031 China Department of Environmentul Science and Engineering Xiamen University Tan Kah Kee College Zhangzhou 363105 China National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230029 China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2010年第22卷第10期

页      面：1570-1575页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 09[农学] 0901[农学-作物学] 

基　　金：supported by the Knowledge Innovation Foundation of Chinese Academy of Sciences(No.KJCX2- YW-N24) the National Natural Science Foundation of China(No.40975080,10979061) 

主　　题：ethylbenzne secondary organic aerosol smog chamber desorption/ionization reaction mechanism 

摘      要：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 differences 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.