Temperature effects on optical properties and chemical composition of secondary organic aerosol derived from n-dodecane

doi:10.5194/acp-20-8123-2020

GSTDTAP > 地球科学

DOI	10.5194/acp-20-8123-2020
	Temperature effects on optical properties and chemical composition of secondary organic aerosol derived from n-dodecane
	Li, Junling 1,2,4; Wang, Weigang 1,2; Li, Kun 5,7; Zhang, Wenyu 1,2; Peng, Chao 1,2; Zhou, Li 6; Shi, Bo 1,2; Chen, Yan 1,2; Liu, Mingyuan 1,2; Li, Hong 4; Ge, Maofa 1,2,3
	2020-07-13
发表期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN	1680-7316
EISSN	1680-7324
出版年	2020
卷号	20 期号:13 页码:8123-8137
文章类型	Article
语种	英语
国家	Peoples R China; Canada; Switzerland
英文摘要	Environmental temperature plays a vital role in controlling chemical transformations that lead to the formation of secondary organic aerosol (SOA) and ultimately impact the composition and optical properties of the aerosol particles. In this study, we investigated optical properties of n-dodecane SOA under two temperature conditions: 5 and 25 degrees C. It was shown that low-temperature conditions could enhance the real part of the refractive index (RI) of the SOA at wavelengths of 532 and 375 nm. Mass spectrometry analysis revealed that the molecular composition of n-dodecane SOA was significantly modified by temperature: a large amount of oligomers were formed under low-temperature conditions, which led to higher RI values. These findings will help improve our understanding of the chemical composition and optical properties of SOA under different temperature conditions and will provide one possible explanation for the low visibility in suburban areas during winter.
领域	地球科学
收录类别	SCI-E
WOS记录号	WOS:000550800600003
WOS关键词	RADICAL-INITIATED REACTIONS ; COMPLEX REFRACTIVE-INDEXES ; LIGHT-ABSORPTION ; ALPHA-PINENE ; ATMOSPHERIC CHEMISTRY ; RELATIVE-HUMIDITY ; CYCLIC ALKANES ; OH RADICALS ; PHOTOOXIDATION ; OZONOLYSIS
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
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引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/284228
专题	地球科学
作者单位	1.Chinese Acad Sci, CAS Res Educ Ctr Excellence Mol Sci, Inst Chem,Beijing Natl Lab Mol Sci BNLMS, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China; 4.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China; 5.Environm & Climate Change Canada, Air Qual Res Div, Toronto, ON M3H 5T4, Canada; 6.Sichuan Univ, Coll Architecture & Environm, Chengdu, Peoples R China; 7.Paul Scherrer Inst PSI, Lab Atmospher Chem, CH-5232 Villigen, Switzerland
推荐引用方式 GB/T 7714	Li, Junling,Wang, Weigang,Li, Kun,et al. Temperature effects on optical properties and chemical composition of secondary organic aerosol derived from n-dodecane[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(13):8123-8137.
APA	Li, Junling.,Wang, Weigang.,Li, Kun.,Zhang, Wenyu.,Peng, Chao.,...&Ge, Maofa.(2020).Temperature effects on optical properties and chemical composition of secondary organic aerosol derived from n-dodecane.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(13),8123-8137.
MLA	Li, Junling,et al."Temperature effects on optical properties and chemical composition of secondary organic aerosol derived from n-dodecane".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.13(2020):8123-8137.