DOI: 10.1016/j.atmosenv.2018.01.017
Scopus记录号: 2-s2.0-85041473998
论文题名: Formation of aqueous-phase sulfate during the haze period in China: Kinetics and atmospheric implications
作者: Zhang H ; , Chen S ; , Zhong J ; , Zhang S ; , Zhang Y ; , Zhang X ; , Li Z ; , Zeng X ; C
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 177 起始页码: 93
结束页码: 99
语种: 英语
英文关键词: Haze problems
; Mechanism
; Nitrogen chemistry
; Sulfate
Scopus关键词: Aerosols
; Air pollution
; Alkalinity
; Climate change
; Mechanisms
; Nitrogen
; Nitrogen oxides
; Oxidation
; Atmospheric implications
; Global climate changes
; Haze problems
; Nitrogen chemistry
; Rate-limiting steps
; Sulfate
; Sulfate production
; Three-step mechanism
; Sulfur compounds
; nitric acid
; sulfate
; aerosol
; aqueous phase
; Article
; China
; decomposition
; electron transport
; elimination reaction
; energy
; equilibrium constant
; haze
; kinetics
; oxidation
; physical phase
; priority journal
; quantum chemistry
; tautomerization
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Sulfate is one of the most important components in the aerosol due to its key role in air pollution and global climate change. Recent work has suggested that reactive nitrogen chemistry in aqueous water can explain the missing source of sulfate in the aqueous water. Herein, we have mapped out the energy profile of the oxidization process of SO2 leading from NO2 and two feasible three-step mechanisms have been proposed. For the oxidation of HOSO2 − and HSO3 − by the dissolved NO2 in weakly acidic and neutral aerosol (pH ≤ 7), the main contribution to the missing sulfate production comes from the oxidation of HOSO2 −. The whole process is a self-sustaining process. For the oxidation of SO3 2− in alkaline aerosol (pH > 7), the third step - decomposition step of H2O or hydrolysis of SO3 step which are two parallel processes are the rate-limiting steps. The present results are of avail to better understand the missing source of sulfate in the aerosol and hence may lead to better science-based solutions for resolving the severe haze problems in China. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83053
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, China; Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE, United States
Recommended Citation:
Zhang H,, Chen S,, Zhong J,et al. Formation of aqueous-phase sulfate during the haze period in China: Kinetics and atmospheric implications[J]. Atmospheric Environment,2018-01-01,177