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DOI	10.1016/j.atmosenv.2020.117650
	Kinetics and mechanism of OH-induced α-terpineol oxidation in the atmospheric aqueous phase
	Li F.; Tang S.; Tsona N.T.; Du L.
发表日期	2020
ISSN	1352-2310
卷号	237
英文摘要	Kinetics and mechanism of α-terpineol oxidation by OH radicals were studied in the aqueous phase under acidic condition, and the optical properties of the reaction products were examined. Using the relative rate method, the rate constant of α-terpineol reaction with OH radicals was determined to be (1.3 ± 0.3) × 1010 M−1 s−1. The reaction products were analyzed by gas chromatography-mass spectrometry (GC-MS) and the reaction mechanism was proposed. The absorbance changes of the products were monitored by a UV–vis spectrophotometer, and α,β-unsaturated ketone compounds were observed. A certain distribution of α-terpineol in the aqueous phase has the potential to be conducive to the formation of aqueous secondary organic aerosols. At the same time, in order to investigate the persistence of α-terpineol in the atmosphere, its lifetime towards reaction with OH in atmospheric water was determined to be 6.2 h and 1.0 h in urban and remote area, respectively. © 2020 Elsevier Ltd
关键词	Atmospheric aqueous phase Kinetics Mechanism OH radicals Optical properties α-Terpineol
语种	英语
scopus关键词	Free radicals; Gas chromatography; Ketones; Mass spectrometry; Optical properties; Rate constants; Reaction products; Unsaturated compounds; Absorbance change; Acidic conditions; Gas chromatography-mass spectrometries (GC-MS); Kinetics and mechanism; Reaction mechanism; Relative rate method; Secondary organic aerosols; Unsaturated ketones; Monoterpenes; hydroxyl radical; ketone; terpineol; atmospheric chemistry; atmospheric moisture; hydroxyl radical; induced response; optical property; oxidation; reaction kinetics; acidity; aqueous solution; Article; atmosphere; kinetics; mass fragmentography; photooxidation; priority journal; rate constant; reaction analysis; secondary organic aerosol
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249041
作者单位	Environment Research Institute, Shandong University, Qingdao, 266237, China; School of Life Science, Shandong University, Qingdao, 266237, China
推荐引用方式 GB/T 7714	Li F.,Tang S.,Tsona N.T.,et al. Kinetics and mechanism of OH-induced α-terpineol oxidation in the atmospheric aqueous phase[J],2020,237.
APA	Li F.,Tang S.,Tsona N.T.,&Du L..(2020).Kinetics and mechanism of OH-induced α-terpineol oxidation in the atmospheric aqueous phase.ATMOSPHERIC ENVIRONMENT,237.
MLA	Li F.,et al."Kinetics and mechanism of OH-induced α-terpineol oxidation in the atmospheric aqueous phase".ATMOSPHERIC ENVIRONMENT 237(2020).