Hygroscopic behavior of atmospheric aerosols containing nitrate salts and water-soluble organic acids

doi:10.5194/acp-18-5115-2018

CORC > 化学研究所 > 中国科学院化学研究所

	Hygroscopic behavior of atmospheric aerosols containing nitrate salts and water-soluble organic acids
	Jing, Bo 1; Wang, Zhen 1,2; Tan, Fang 1,2; Guo, Yucong 1; Tong, Shengrui 1; Wang, Weigang 1; Zhang, Yunhong 3; Ge, Maofa 1,2,4
刊名	ATMOSPHERIC CHEMISTRY AND PHYSICS
	2018-04-16
卷号	18 期号:7 页码:5115-5127
ISSN号	1680-7316
DOI	10.5194/acp-18-5115-2018
英文摘要	While nitrate salts have critical impacts on environmental effects of atmospheric aerosols, the effects of coexisting species on hygroscopicity of nitrate salts remain uncertain. The hygroscopic behaviors of nitrate salt aerosols (NH4NO3, NaNO3, Ca(NO3)(2)) and their internal mixtures with water-soluble organic acids were determined using a hygroscopicity tandem differential mobility analyzer (HT-DMA). The nitrate salt / organic acid mixed aerosols exhibit varying phase behavior and hygroscopic growth depending upon the type of components in the particles. Whereas pure nitrate salt particles show continuous water uptake with increasing relative humidity (RH), the deliquescence transition is still observed for ammonium nitrate particles internally mixed with organic acids such as oxalic acid and succinic acid with a high deliquescence point. The hygroscopicity of submicron aerosols containing sodium nitrate and an organic acid is also characterized by continuous growth, indicating that sodium nitrate tends to exist in a liquid-like state under dry conditions. It is observed that in contrast to the pure components, the water uptake is hindered at low and moderate RH for calcium nitrate particles containing malonic acid or phthalic acid, suggesting the potential effects of mass transfer limitation in highly viscous mixed systems. Our findings improve fundamental understanding of the phase behavior and water uptake of nitrate-salt-containing aerosols in the atmospheric environment.
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000430171500003
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/46135]
专题	中国科学院化学研究所
通讯作者	Ge, Maofa
作者单位	1.Chinese Acad Sci, Inst Chem, CAS Res Educ Ctr Excellence Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Beijing Inst Technol, Inst Chem Phys, Sch Chem & Chem Engn, Beijing 100081, Peoples R China 4.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China
推荐引用方式 GB/T 7714	Jing, Bo,Wang, Zhen,Tan, Fang,et al. Hygroscopic behavior of atmospheric aerosols containing nitrate salts and water-soluble organic acids[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(7):5115-5127.
APA	Jing, Bo.,Wang, Zhen.,Tan, Fang.,Guo, Yucong.,Tong, Shengrui.,...&Ge, Maofa.(2018).Hygroscopic behavior of atmospheric aerosols containing nitrate salts and water-soluble organic acids.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(7),5115-5127.
MLA	Jing, Bo,et al."Hygroscopic behavior of atmospheric aerosols containing nitrate salts and water-soluble organic acids".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.7(2018):5115-5127.