气候变化领域集成服务门户(CCPortal): Secondary organic aerosol formation from the ozonolysis and oh-photooxidation of 2,5-dimethylfuran

CCPortal

DOI	10.1016/j.atmosenv.2020.118041
	Secondary organic aerosol formation from the ozonolysis and oh-photooxidation of 2,5-dimethylfuran
	Tajuelo M.; Rodríguez D.; Rodríguez A.; Escalona A.; Viteri G.; Aranda A.; Diaz-de-Mera Y.
发表日期	2021
ISSN	13522310
卷号	245
英文摘要	In this study, the O3 and OH radical oxidation of 2,5-dimethylfuran (2,5-DMF) were investigated in two different chambers at (296±1) K and atmospheric pressure to examine secondary organic aerosol (SOA) formation. Results for OH-photooxidation indicate that SOA yieldsdecrease (from 6.2 to 0.4) with the rise of 2,5-DMF concentration (from10 to 1000 ppb). In the absence of NOx and under high relative humidity (RH) conditions (60%), higher aerosol yields are favoured. SOA formation is dependent on the initial seed surface for two kinds of inorganic seed particles ((NH4)2SO4 and CaCl2), being the effect slightly greater for CaCl2. The ozonolysis only generates particles in the presence of SO2 and the increase of relative humidity from 0 to 15% lowers the particle number and particle mass concentrations. The water-to-SO2 rate constant ratio of the Criegee intermediate was derived from the SOA yield in experiments with different relative humidity values, with kH2O/kSO2 = (1.6±0.4)x10−5. © 2020 Elsevier Ltd
英文关键词	2,5-Dimethylfuran; Biofuel; OH-photooxidation; Ozonolysis; SOA
语种	英语
scopus关键词	Aerosols; Atmospheric pressure; Free radicals; Nitrogen compounds; Ozone; Photooxidation; Rate constants; Sulfur dioxide; Constant ratio; Criegee intermediates; High relative humidities; Inorganic seed particles; Particle mass; Particle numbers; Secondary organic aerosols; Seed surfaces; Atmospheric humidity; aerosol; aerosol formation; atmospheric pressure; chemical compound; concentration (composition); hydroxyl radical; oxidation; photooxidation
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/152956
作者单位	Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, Avenida Carlos III, s/n, Toledo, 45071, Spain; Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Avenida Camilo José Cela 10, Ciudad Real, 13071, Spain
推荐引用方式 GB/T 7714	Tajuelo M.,Rodríguez D.,Rodríguez A.,et al. Secondary organic aerosol formation from the ozonolysis and oh-photooxidation of 2,5-dimethylfuran[J],2021,245.
APA	Tajuelo M..,Rodríguez D..,Rodríguez A..,Escalona A..,Viteri G..,...&Diaz-de-Mera Y..(2021).Secondary organic aerosol formation from the ozonolysis and oh-photooxidation of 2,5-dimethylfuran.Atmospheric Environment,245.
MLA	Tajuelo M.,et al."Secondary organic aerosol formation from the ozonolysis and oh-photooxidation of 2,5-dimethylfuran".Atmospheric Environment 245(2021).