气候变化领域集成服务门户(CCPortal): Interactions of organosulfates with water vapor under sub- And supersaturated conditions

CCPortal

DOI	10.5194/acp-21-7135-2021
	Interactions of organosulfates with water vapor under sub- And supersaturated conditions
	Peng C.; Razafindrambinina P.N.; Malek K.A.; Chen L.; Wang W.; Huang R.-J.; Zhang Y.; DIng X.; Ge M.; Wang X.; Asa-Awuku A.A.; Tang M.
发表日期	2021
ISSN	1680-7316
起始页码	7135
结束页码	7148
卷号	21 期号:9
英文摘要	Organosulfates (OSs) are important constituents of secondary organic aerosols, but their hygroscopic properties and cloud condensation nucleation (CCN) activities have not been well understood. In this work we employed three complementary techniques to characterize interactions of several OSs with water vapor under sub- and supersaturated conditions. A vapor sorption analyzer was used to measure mass changes in OS samples with relative humidity (RH, 0 % 90 %); among the 11 organosulfates examined, only sodium methyl sulfate (methyl-OS), sodium ethyl sulfate (ethyl-OS), sodium octyl sulfate (octyl-OS) and potassium hydroxyacetone sulfate were found to deliquesce as RH increased, and their mass growth factors at 90% RH were determined to be 3.65-0.06, 3.58-0.02, 1.59-0.01 and 2.20-0.03. Hygroscopic growth of methyl-, ethyl- and octyl-OS aerosols was also studied using a humidity tandem differential mobility analyzer (H-TDMA); continuous hygroscopic growth was observed, and their growth factors at 90% RH were determined to be 1.83-0.03, 1.79-0.02 and 1.21-0.02. We further investigated CCN activities of methyl-, ethyl- and octyl-OS aerosols, and their single hygroscopicity parameters (ccn) were determined to be 0.459-0.021, 0.397-0.010 and 0.206-0.008. For methyl- and ethyl-OS aerosols, ccn values agree reasonably well with those derived from H-TDMA measurements (gf) with relative differences being <25 %, whereas ccn was found to be 2.4 times larger than gf for octyl-OS, likely due to both the solubility limit and surface tension reduction. © 2021 Copernicus GmbH. All rights reserved.
语种	英语
scopus关键词	atmospheric chemistry; hygroscopicity; relative humidity; solubility; sorption; sulfate; supersaturation; water vapor
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246904
作者单位	State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; CAS Center for Excellence in Deep Earth Science, Guangzhou, 510640, China; Department of Chemistry and Biochemistry, College of Computer, Mathematical and Natural Sciences, University of Maryland, College Park, MD 20742, United States; Department of Chemical and Biomolecular Engineering, A. James Clark School of Engineering, University of Maryland, College Park, MD 20742, United States; University of Chinese Academy of Sciences, Beijing, 100049, China; State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing,...
推荐引用方式 GB/T 7714	Peng C.,Razafindrambinina P.N.,Malek K.A.,et al. Interactions of organosulfates with water vapor under sub- And supersaturated conditions[J],2021,21(9).
APA	Peng C..,Razafindrambinina P.N..,Malek K.A..,Chen L..,Wang W..,...&Tang M..(2021).Interactions of organosulfates with water vapor under sub- And supersaturated conditions.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(9).
MLA	Peng C.,et al."Interactions of organosulfates with water vapor under sub- And supersaturated conditions".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.9(2021).