DOI: 10.1016/j.atmosenv.2013.11.074
Scopus记录号: 2-s2.0-84892529640
论文题名: Atmospheric reactivity of hydroxyl radicals with guaiacol (2-methoxyphenol), a biomass burning emitted compound: Secondary organic aerosol formation and gas-phase oxidation products
作者: Lauraguais A ; , Coeur-Tourneur C ; , Cassez A ; , Deboudt K ; , Fourmentin M ; , Choël M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 86 起始页码: 155
结束页码: 163
语种: 英语
英文关键词: Guaiacol
; Nitroguaiacols
; OH reaction
; Secondary organic aerosol
; Simulation chamber
Scopus关键词: Guaiacol
; Nitroguaiacols
; OH reaction
; Secondary organic aerosols
; Simulation chambers
; Aerosols
; Atmospheric pressure
; Chemical analysis
; Gas chromatography
; Isomers
; Nitrobenzene
; Oxidation
; Scanning electron microscopy
; Shape memory effect
; Wood
; Alcohols
; guaiacol
; hydroxyl radical
; aerosol
; atmospheric pressure
; biogenic emission
; biomass burning
; gas chromatography
; gas phase reaction
; hydroxyl radical
; lignin
; mass spectrometry
; pyrolysis
; relative humidity
; scanning electron microscopy
; simulation
; trace gas
; transmission electron microscopy
; volatile organic compound
; article
; atmospheric pressure
; concentration (parameters)
; controlled study
; gas
; gas chromatography
; humidity
; mass fragmentography
; photooxidation
; priority journal
; reaction analysis
; scanning electron microscopy
; secondary organic aerosol
; transmission electron microscopy
; Aerosols
; Alcohols
; Chemical Analysis
; Gas Chromatography
; Isomers
; Nitrobenzene
; Oxidation
; Scanning Electron Microscopy
; Wood
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Methoxyphenols are low molecular weight semi-volatile polar aromatic compounds produced from the pyrolysis of wood lignin. The reaction of guaiacol (2-methoxyphenol) with hydroxyl radicals has been studied in the LPCA simulation chamber at (294±2) K, atmospheric pressure, low relative humidity (RH<1%) and under high-NOx conditions using CH3ONO as OH source. The aerosol production was monitored using a SMPS (Scanning Mobility Particle Sizer); the SOA yields were in the range from 0.003 to 0.87 and the organic aerosol formation can be expressed by a one-product gas/particle partitioning absorption model. Transmission (TEM) and Scanning (SEM) Electron Microscopy observations were performed to characterize the physical state of SOA produced from the OH reaction with guaiacol; they display both liquid and solid particles (in an amorphous state).GC-FID (Gas Chromatography - Flame Ionization Detection) and GC-MS (Gas Chromatography - Mass Spectrometry) analysis show the formation of nitroguaiacol isomers as main oxidation products in the gas- and aerosol-phases. In the gas-phase, the formation yields were (10±2) % for 4-nitroguaiacol (1-hydroxy-2-methoxy-4-nitrobenzene; 4-NG) and (6±2) % for 3- or 6-nitroguaiacol (1-hydroxy-2-methoxy-3-nitrobenzene or 1-hydroxy-2-methoxy-6-nitrobenzene; 3/6-NG; the standards are not commercially available so both isomers cannot be distinguished) whereas in SOA their yield were much lower (≤0.1%).To our knowledge, this work represents the first identification of nitroguaiacols as gaseous oxidation products of the OH reaction with guaiacol. As the reactivity of nitroguaiacols with atmospheric oxidants is probably low, we suggest using them as biomass burning emission gas tracers. The atmospheric implications of the guaiacol+OH reaction are also discussed. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80712
Appears in Collections: 气候变化事实与影响
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作者单位: Université Lille Nord de France, France; Laboratoire de Physico-Chimie de l'Atmosphère, Université du Littoral Côte d'Opale, 32 Avenue Foch, 62930 Wimereux, France; Laboratoire de Physico-Chimie de l'Atmosphère, Université du Littoral Côte d'Opale, 189A Avenue Maurice Schumann, 59140 Dunkerque, France; LAboratoire de Spectrochimie Infrarouge et Raman (LASIR), UMR CNRS 8516, Université Lille 1 Sciences et Technologies, Bâtiment C5, 59655 Villeneuve d'Ascq Cedex, France
Recommended Citation:
Lauraguais A,, Coeur-Tourneur C,, Cassez A,et al. Atmospheric reactivity of hydroxyl radicals with guaiacol (2-methoxyphenol), a biomass burning emitted compound: Secondary organic aerosol formation and gas-phase oxidation products[J]. Atmospheric Environment,2014-01-01,86