Articles | Volume 23, issue 11
https://doi.org/10.5194/acp-23-6113-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-23-6113-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
05 Jun 2023
Research article |
| 05 Jun 2023
| 05 Jun 2023
Simultaneous formation of sulfate and nitrate via co-uptake of SO2 and NO2 by aqueous NaCl droplets: combined effect of nitrate photolysis and chlorine chemistry
School of Energy and Environment, City University of Hong Kong, Tat
Chee Avenue, Kowloon 999077, Hong Kong SAR, China
Shenzhen Research Institute, City University of Hong Kong, Shenzhen
518057, China
Chak Keung Chan
CORRESPONDING AUTHOR
School of Energy and Environment, City University of Hong Kong, Tat
Chee Avenue, Kowloon 999077, Hong Kong SAR, China
Shenzhen Research Institute, City University of Hong Kong, Shenzhen
518057, China
Low-Carbon and Climate Impact Research Centre, City University of Hong Kong, Tat Chee Avenue, Kowloon 999077, Hong Kong SAR, China
current address: Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
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Short summary
Research into sulfate and nitrate formation from co-uptake of NO2 and SO2, especially under irradiation, is rare. We studied the co-uptake of NO2 and SO2 by NaCl droplets under various conditions, including irradiation and dark, and RHs, using Raman spectroscopy flow cell and kinetic model simulation. Significant nitrate formation from NO2 hydrolysis can be photolyzed to generate OH radicals that can further react with chloride to produce reactive chlorine species and promote sulfate formation.
Research into sulfate and nitrate formation from co-uptake of NO2 and SO2, especially under...
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