Heterogeneous reaction of coniferyl alcohol adsorbed on silica particles with NO3 radicals

Atmospheric Pollution Research

ChanggengLiu¹ 

关键词: Heterogeneous reaction;    Methoxyphenols;    NO3 radicals;    GC–MS;    Silica particles;   

DOI  :  10.1016/j.apr.2016.12.008

学科分类：农业科学（综合）

来源: Dokuz Eylul Universitesi * Department of Environmental Engineering

【 摘 要 】

4-[(1E)-3-Hydroxy-1-propenyl)]-2-methoxyphenol (coniferyl alcohol) is a potential marker compound for wood smoke emissions in the atmosphere. In this work, the heterogeneous reaction of coniferyl alcohol adsorbed on silica particles with NO3 radicals was investigated. According to gas chromatography mass spectrometry (GC–MS) analysis, five products including glycolic acid, oxalic acid, 4-hydroxy-3-methoxy-benzaldehyde, 4-hydroxy-3-methoxy-benzoic acid, and 4-hydroxy-3-methoxy-5-nitrobenzaldehyde were confirmed. Based on the identified products, the reaction mechanisms were proposed and the favored sites for NO3 electrophilic addition were olefinic CC bond and the meta-position to the hydroxyl group in the benzene ring. The obtained results might shed light on the chemical behaviors of coniferyl alcohol at night.

【 授权许可】

CC BY