Articles | Volume 24, issue 11
https://doi.org/10.5194/acp-24-6757-2024
© Author(s) 2024. 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-24-6757-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Photoenhanced sulfate formation by the heterogeneous uptake of SO2 on non-photoactive mineral dust
Wangjin Yang
School of Metallurgy, Northeastern University, Shenyang, 110819, China
Jiawei Ma
School of Metallurgy, Northeastern University, Shenyang, 110819, China
Hongxing Yang
School of Metallurgy, Northeastern University, Shenyang, 110819, China
Fu Li
School of Metallurgy, Northeastern University, Shenyang, 110819, China
Chong Han
CORRESPONDING AUTHOR
School of Metallurgy, Northeastern University, Shenyang, 110819, China
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Cited
15 citations as recorded by crossref.
- A new parameterization of uptake coefficient of SO2 and its impact on sulfate concentration K. Kim et al. https://doi.org/10.1016/j.atmosenv.2025.121503
- The effect of photosensitization reaction of imidazole-2-carbaldehyde on the heterogeneous uptake of sulfur dioxide on hematite Y. An et al. https://doi.org/10.1016/j.atmosenv.2025.121456
- Implementation of the MOSAIC aerosol module (v1.0) in the Canadian air quality model GEM-MACH (v3.1) K. Semeniuk et al. https://doi.org/10.5194/gmd-18-6479-2025
- Fossil-dominated secondary organic aerosol (SOA) formation in coastal China: size-divergent pathways of aqueous Fenton reactions versus gas-phase volatile organic compound (VOC) autoxidation J. Wang et al. https://doi.org/10.5194/acp-25-9831-2025
- Diagnosing Dominant Drivers of Sulfate Simulation Uncertainties with the EPICC Model: An Integrated Assessment of Chemical Mechanisms and Emission Inventories L. Sheng et al. https://doi.org/10.1007/s00376-026-5710-8
- Microstructure-Mediated Electron Transfer Dominates the Photoconversion of NO2 to HONO on Soot S. Lai et al. https://doi.org/10.1021/jacs.5c23020
- Dominant Mechanisms of Sulfate Formation across Pollution Regimes in China: A GEOS-Chem Modeling Study X. Li et al. https://doi.org/10.1007/s00376-026-5712-6
- Quantitative relationships between physicochemical properties of organic carbon from coal combustion and heterogeneous photooxidation of SO2 to sulfates S. Yang et al. https://doi.org/10.1016/j.jhazmat.2025.139132
- Chemical characteristics and formation of potential secondary aerosols in PM1 and PM2.5 using an oxidation flow reactor S. Kang et al. https://doi.org/10.1016/j.jes.2026.05.008
- Exploring SO2 Photooxidation to Sulfates on Organic Carbon from PM2.5: Kinetics, Mechanism, and Dependence on Physicochemical Properties H. Yang et al. https://doi.org/10.1021/acsestair.6c00047
- NO2-promoted heterogeneous photochemical oxidation of SO2 to sulfates on brown carbon H. Yang et al. https://doi.org/10.1016/j.envpol.2025.126450
- Understanding the physicochemical characteristics of PM2.5 under meteorological influence: A study in South Chungcheong Province, South Korea (2021–2022) K. Hwang et al. https://doi.org/10.1016/j.apr.2025.102497
- Understanding the Transformation Pathway of Nitrogen-Containing Emerging Contaminants to Reactive Nitrogen Species by Ozonolysis W. Yang et al. https://doi.org/10.1021/acsestair.5c00456
- Atmospheric microplastics amplify sulfate formation via heterogeneous SO2 oxidation X. Xiong et al. https://doi.org/10.1016/j.jhazmat.2026.142792
- Carbonate radical ion as a key driver of rapid atmospheric sulfate formation Y. Liu et al. https://doi.org/10.1038/s41612-025-00905-4
15 citations as recorded by crossref.
- A new parameterization of uptake coefficient of SO2 and its impact on sulfate concentration K. Kim et al. https://doi.org/10.1016/j.atmosenv.2025.121503
- The effect of photosensitization reaction of imidazole-2-carbaldehyde on the heterogeneous uptake of sulfur dioxide on hematite Y. An et al. https://doi.org/10.1016/j.atmosenv.2025.121456
- Implementation of the MOSAIC aerosol module (v1.0) in the Canadian air quality model GEM-MACH (v3.1) K. Semeniuk et al. https://doi.org/10.5194/gmd-18-6479-2025
- Fossil-dominated secondary organic aerosol (SOA) formation in coastal China: size-divergent pathways of aqueous Fenton reactions versus gas-phase volatile organic compound (VOC) autoxidation J. Wang et al. https://doi.org/10.5194/acp-25-9831-2025
- Diagnosing Dominant Drivers of Sulfate Simulation Uncertainties with the EPICC Model: An Integrated Assessment of Chemical Mechanisms and Emission Inventories L. Sheng et al. https://doi.org/10.1007/s00376-026-5710-8
- Microstructure-Mediated Electron Transfer Dominates the Photoconversion of NO2 to HONO on Soot S. Lai et al. https://doi.org/10.1021/jacs.5c23020
- Dominant Mechanisms of Sulfate Formation across Pollution Regimes in China: A GEOS-Chem Modeling Study X. Li et al. https://doi.org/10.1007/s00376-026-5712-6
- Quantitative relationships between physicochemical properties of organic carbon from coal combustion and heterogeneous photooxidation of SO2 to sulfates S. Yang et al. https://doi.org/10.1016/j.jhazmat.2025.139132
- Chemical characteristics and formation of potential secondary aerosols in PM1 and PM2.5 using an oxidation flow reactor S. Kang et al. https://doi.org/10.1016/j.jes.2026.05.008
- Exploring SO2 Photooxidation to Sulfates on Organic Carbon from PM2.5: Kinetics, Mechanism, and Dependence on Physicochemical Properties H. Yang et al. https://doi.org/10.1021/acsestair.6c00047
- NO2-promoted heterogeneous photochemical oxidation of SO2 to sulfates on brown carbon H. Yang et al. https://doi.org/10.1016/j.envpol.2025.126450
- Understanding the physicochemical characteristics of PM2.5 under meteorological influence: A study in South Chungcheong Province, South Korea (2021–2022) K. Hwang et al. https://doi.org/10.1016/j.apr.2025.102497
- Understanding the Transformation Pathway of Nitrogen-Containing Emerging Contaminants to Reactive Nitrogen Species by Ozonolysis W. Yang et al. https://doi.org/10.1021/acsestair.5c00456
- Atmospheric microplastics amplify sulfate formation via heterogeneous SO2 oxidation X. Xiong et al. https://doi.org/10.1016/j.jhazmat.2026.142792
- Carbonate radical ion as a key driver of rapid atmospheric sulfate formation Y. Liu et al. https://doi.org/10.1038/s41612-025-00905-4
Saved (final revised paper)
Latest update: 10 Nov 2026
Short summary
We provide evidence that light enhances the conversion of SO2 to sulfates on non-photoactive mineral dust, where triplet states of SO2 (3SO2) can act as a pivotal trigger to generate sulfates. Photochemical sulfate formation depends on H2O, O2, and basicity of mineral dust. The SO2 photochemistry on non-photoactive mineral dust contributes to sulfates, highlighting previously unknown pathways to better explain the missing sources of atmospheric sulfates.
We provide evidence that light enhances the conversion of SO2 to sulfates on non-photoactive...
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