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.
Research article
| 
12 Jun 2024
Research article |
| 12 Jun 2024
| 12 Jun 2024
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
Related authors
Shaojie Yang, Shiwei Lai, Jianwei Zheng, Hao Na, Fu Li, Wangjin Yang, and Chong Han
EGUsphere, https://doi.org/10.5194/egusphere-2026-1728, https://doi.org/10.5194/egusphere-2026-1728, 2026
This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary
Short summary
Organic carbon (OC) coexists with transition metal ions (TMIs) in atmospheric aerosols. The complexation behaviors of OC and TMIs can occur according to spectroscopic evidences. The specific complexation property of TMIs toward OC significantly modulated the generation of reactive species, especially for hydroxyl radicals (•OH) serving as the key oxidant for sulfate production. This exerts positive or negative roles of TMIs in the photoconversion of SO2 to sulfates on OC.
Shaojie Yang, Shiwei Lai, Jianwei Zheng, Hao Na, Fu Li, Wangjin Yang, and Chong Han
EGUsphere, https://doi.org/10.5194/egusphere-2026-1728, https://doi.org/10.5194/egusphere-2026-1728, 2026
This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary
Short summary
Organic carbon (OC) coexists with transition metal ions (TMIs) in atmospheric aerosols. The complexation behaviors of OC and TMIs can occur according to spectroscopic evidences. The specific complexation property of TMIs toward OC significantly modulated the generation of reactive species, especially for hydroxyl radicals (•OH) serving as the key oxidant for sulfate production. This exerts positive or negative roles of TMIs in the photoconversion of SO2 to sulfates on OC.
Chong Han, Hongxing Yang, Kun Li, Patrick Lee, John Liggio, Amy Leithead, and Shao-Meng Li
Atmos. Chem. Phys., 22, 10827–10839, https://doi.org/10.5194/acp-22-10827-2022, https://doi.org/10.5194/acp-22-10827-2022, 2022
Short summary
Short summary
We presented yields and compositions of Si-containing SOAs generated from the reaction of cVMSs (D3–D6) with OH radicals. NOx played a negative role in cVMS SOA formation, while ammonium sulfate seeds enhanced D3–D5 SOA yields at short photochemical ages under high-NOx conditions. The aerosol mass spectra confirmed that the components of cVMS SOAs significantly relied on OH exposure. A global cVMS-derived SOA source strength was estimated in order to understand SOA formation potentials of cVMSs.
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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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