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Effect of NOX, O3 and NH3 on sulfur isotope composition during heterogeneous oxidation of SO2: a laboratory investigation

文献类型：期刊论文

作者Guo, Zhaobing1; Qian, Qingxiang1; Xu, Mingyi1; Zhu, Bin2,3; Guo, Qingjun4; Qiu, Pengxiang1
刊名AIR QUALITY ATMOSPHERE AND HEALTH
出版日期2024-03-09
页码9
关键词Sulfur isotope oxidation mechanism Fractionation Rayleigh distillation model
ISSN号1873-9318
DOI10.1007/s11869-024-01543-0
通讯作者Qiu, Pengxiang(pxqiu@nuist.edu.cn)
英文摘要Sulfate aerosol is a major fraction of haze, playing an important role in aerosol formation and aging processes. To understand the mechanism of sulfate formations, the characteristics of sulfur isotope composition were determined during different heterogeneous oxidation reactions of sulfur dioxide on the surface of alpha-Fe2O3. Although NH3 was more beneficial to the formation of sulfate, compared with NOX and O-3, S-34 tended to enrich the lighter sulfur isotopes in the presence of NH3. Furthermore, in consideration of the potential competitive effects of NOX, O-3, and NH3 in the heterogeneous oxidation processes, the contributions of each gas were evaluated via Rayleigh distillation model. Notably, the oxidation by NOX contributed 67.5 +/- 10 % of the whole sulfate production, which is higher than that of O-3 (13.3 +/- 10 %) and NH3 (19.2 +/- 10 %) on the basic of the average fractionation factor. The observed delta S-34 values of sulfate aerosols were negatively correlated with sulfur oxidation ratios, owing to the sulfur isotopic fractionations during the sulfate formation processes. Given the isotope mass balance, the overall delta S-34(sulfate) approached the delta S-34(emission) as oxidation of SO2 progressed, suggesting that NOX played a major rather than a sole role in the different heterogeneous oxidation processes of SO2 on the mineral dust surface.
WOS关键词PARTICLE FORMATION ; WINTER HAZE ; SULFATE ; AEROSOL ; FRACTIONATION ; DIOXIDE ; PM2.5 ; MECHANISM ; SECONDARY ; CLIMATE
资助项目National Natural Science Foundation of China[41873016] ; National Natural Science Foundation of China[51908293] ; National Natural Science Foundation of China[51908294] ; National Natural Science Foundation of China[41625006] ; National Natural Science Foundation of China[BRA2018033] ; Jiangsu Province 333 Talent Project
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001178254000002
出版者SPRINGER
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu Province 333 Talent Project
源URL[http://ir.igsnrr.ac.cn/handle/311030/203504]  
专题中国科学院地理科学与资源研究所
通讯作者Qiu, Pengxiang
作者单位1.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Atmospher Environm & Equipm, Sch Environm Sci & Engn, Jiangsu Key Lab Atmospher Environm Monitoring & Po, Nanjing 210044, Peoples R China
2.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteorol, Minist Educ KLME, Nanjing 210044, Peoples R China
3.Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster, Minist Educ KLME, Nanjing 210044, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Zhaobing,Qian, Qingxiang,Xu, Mingyi,et al. Effect of NOX, O3 and NH3 on sulfur isotope composition during heterogeneous oxidation of SO2: a laboratory investigation[J]. AIR QUALITY ATMOSPHERE AND HEALTH,2024:9.
APA Guo, Zhaobing,Qian, Qingxiang,Xu, Mingyi,Zhu, Bin,Guo, Qingjun,&Qiu, Pengxiang.(2024).Effect of NOX, O3 and NH3 on sulfur isotope composition during heterogeneous oxidation of SO2: a laboratory investigation.AIR QUALITY ATMOSPHERE AND HEALTH,9.
MLA Guo, Zhaobing,et al."Effect of NOX, O3 and NH3 on sulfur isotope composition during heterogeneous oxidation of SO2: a laboratory investigation".AIR QUALITY ATMOSPHERE AND HEALTH (2024):9.

入库方式： OAI收割

来源：地理科学与资源研究所

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