气候变化领域集成服务门户(CCPortal): Heterogeneous reaction and condensation growth observation of NaCl/dicarboxylic acids nanoparticles by aerosol time-of-flight mass spectrometer with water-based particle size amplifier

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DOI	10.1016/j.atmosenv.2020.118162
	Heterogeneous reaction and condensation growth observation of NaCl/dicarboxylic acids nanoparticles by aerosol time-of-flight mass spectrometer with water-based particle size amplifier
	Xie Z.; Gui H.; Zhang J.; Bian J.; Gu X.; Xiao H.; Chen D.-R.; Liu J.
发表日期	2021
ISSN	1352-2310
卷号	246
英文摘要	Significant contribution of ultrafine particles in the atmosphere to the cloud condensation nuclei and precipitation has been evidenced. The correlation between the condensation growth and chemical composition of particles is essential in the atmospheric studies. To reduce the lower detection limit of ATOFMS (currently at 200 nm), a water-based particle size amplifier, consisted of a tubing inner-lined with an expanded polytetrafluoroethylene layer and temperature-controlled in three sections, was designed, and its amplification performance was evaluated. With the use of the particle size amplifier, the peaks of Na and Cl in the mass spectra of 50 nm NaCl particles were obviously observed. Further, 50 nm NaCl/Dicarboxylic Acid (DA) particles were generated and characterized by ATOFMS with the amplifier and the sizes of ultrafine particles after the amplifier was measured by an Aerodynamic Particle Spectrometer (APS). It is found that the Cl/Na ratio in 50 nm NaCl + DA particles was negatively correlated with the DA concentration and positively correlated with the acidity coefficient of the DAs, i.e., the high DA mass fraction in particles and low the acidity coefficient of DAs results in strong heterogeneous reaction in the generation of these particles. The amplified sizes of NaCl + DA nanoparticles was also greatly influenced by the degree of the reaction involved. The Cl/Na ratio of NaCl + DA particles was found to have positive correlation with the amplified size of particles. © 2020 Elsevier Ltd
关键词	Chlorine loss Condensation growth Heterogeneous reaction Nanoparticles Supersaturation
语种	英语
scopus关键词	Condensation; Condensation reactions; Mass spectrometers; Mass spectrometry; Nanoparticles; Precipitation (meteorology); Sodium chloride; Aerosol time-of-flight mass spectrometers; Atmospheric studies; Chemical compositions; Cloud condensation nuclei; Expanded polytetrafluoroethylene; Heterogeneous reactions; Lower detection limit; Positive correlations; Particle size; chlorine; dicarboxylic acid; nanoparticle; polytetrafluoroethylene; sodium; sodium chloride; water; acidity; amplification; carboxylic acid; chemical composition; cloud condensation nucleus; correlation; mass spectrometry; nanoparticle; particle size; sodium chloride; acidity; aerosol; Article; chemical reaction; limit of detection; particle size; priority journal; time of flight mass spectrometry; ultrafine particulate matter
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/248640
作者单位	Innovation Excellence Center for Urban Atmospheric Environment of CAS, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China; Particle Laboratory, Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, 401 West Main Street, Ruchmond, VA 23284, United States; College of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei, 230031, China
推荐引用方式 GB/T 7714	Xie Z.,Gui H.,Zhang J.,et al. Heterogeneous reaction and condensation growth observation of NaCl/dicarboxylic acids nanoparticles by aerosol time-of-flight mass spectrometer with water-based particle size amplifier[J],2021,246.
APA	Xie Z..,Gui H..,Zhang J..,Bian J..,Gu X..,...&Liu J..(2021).Heterogeneous reaction and condensation growth observation of NaCl/dicarboxylic acids nanoparticles by aerosol time-of-flight mass spectrometer with water-based particle size amplifier.ATMOSPHERIC ENVIRONMENT,246.
MLA	Xie Z.,et al."Heterogeneous reaction and condensation growth observation of NaCl/dicarboxylic acids nanoparticles by aerosol time-of-flight mass spectrometer with water-based particle size amplifier".ATMOSPHERIC ENVIRONMENT 246(2021).