Hygroscopic properties of potassium chloride and its internal mixtures with organic compounds relevant to biomass burning aerosol particles

CORC > 化学研究所 > 中国科学院化学研究所 > 分子动态与稳态结构实验室

	Hygroscopic properties of potassium chloride and its internal mixtures with organic compounds relevant to biomass burning aerosol particles
	Jing, Bo 1; Peng, Chao 1,2; Wang, Yidan 1,2; Liu, Qifan 1,2; Tong, Shengrui 1; Zhang, Yunhong 3; Ge, Maofa 1,2,4
刊名	SCIENTIFIC REPORTS
	2017-02-27
卷号	7
英文摘要	While water uptake of aerosols exerts considerable impacts on climate, the effects of aerosol composition and potential interactions between species on hygroscopicity of atmospheric particles have not been fully characterized. The water uptake behaviors of potassium chloride and its internal mixtures with water soluble organic compounds (WSOCs) related to biomass burning aerosols including oxalic acid, levoglucosan and humic acid at different mass ratios were investigated using a hygroscopicity tandem differential mobility analyzer (HTDMA). Deliquescence points of KCl/organic mixtures were observed to occur at lower RH values and over a broader RH range eventually disappearing at high organic mass fractions. This leads to substantial under-prediction of water uptake at intermediate RH. Large discrepancies for water content between model predictions and measurements were observed for KCl aerosols with 75 wt% oxalic acid content, which is likely due to the formation of less hygroscopic potassium oxalate from interactions between KCl and oxalic acid without taken into account in the model methods. Our results also indicate strong influence of levoglucosan on hygroscopic behaviors of multicomponent mixed particles. These findings are important in further understanding the role of interactions between WSOCs and inorganic salt on hygroscopic behaviors and environmental effects of atmospheric particles.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38129]
专题	化学研究所_分子动态与稳态结构实验室
作者单位	1.Chinese Acad Sci, Inst Chem, State Key Lab Struct Chem Unstable & Stable Speci, BNLMS, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Beijing Inst Technol, Inst Chem Phys, Sch Chem, 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,Peng, Chao,Wang, Yidan,et al. Hygroscopic properties of potassium chloride and its internal mixtures with organic compounds relevant to biomass burning aerosol particles[J]. SCIENTIFIC REPORTS,2017,7.
APA	Jing, Bo.,Peng, Chao.,Wang, Yidan.,Liu, Qifan.,Tong, Shengrui.,...&Ge, Maofa.(2017).Hygroscopic properties of potassium chloride and its internal mixtures with organic compounds relevant to biomass burning aerosol particles.SCIENTIFIC REPORTS,7.
MLA	Jing, Bo,et al."Hygroscopic properties of potassium chloride and its internal mixtures with organic compounds relevant to biomass burning aerosol particles".SCIENTIFIC REPORTS 7(2017).