Articles | Volume 25, issue 19
https://doi.org/10.5194/acp-25-12087-2025
https://doi.org/10.5194/acp-25-12087-2025
Research article
 | 
07 Oct 2025
Research article |  | 07 Oct 2025

The effect of amino acids on the Fenton and photo-Fenton reactions in cloud water: unraveling the dual role of glutamic acid

Peng Cheng, Gilles Mailhot, Mohamed Sarakha, Guillaume Voyard, Daniele Scheres Firak, Thomas Schaefer, Hartmut Herrmann, and Marcello Brigante

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Cited articles

Alpert, P. A., Dou, J., Corral Arroyo, P., Schneider, F., Xto, J., Luo, B., Peter, T., Huthwelker, T., Borca, C. N., Henzler, K. D., Schaefer, T., Herrmann, H., Raabe, J., Watts, B., Krieger, U. K., and Ammann, M.: Photolytic radical persistence due to anoxia in viscous aerosol particles, Nat. Commun., 12, 1769, https://doi.org/10.1038/s41467-021-21913-x, 2021. 
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Bader, H., Sturzenegger, V., and Hoigné, J.: Photometric method for the determination of low concentrations of hydrogen peroxide by the peroxidase catalyzed oxidation of N,N-diethyl-p-phenylenediamine (DPD), Water Res., 22, 1109–1115, https://doi.org/10.1016/0043-1354(88)90005-X, 1988. 
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Battaglia Jr., M. A., Weber, R. J., Nenes, A., and Hennigan, C. J.: Effects of water-soluble organic carbon on aerosol pH, Atmos. Chem. Phys., 19, 14607–14620, https://doi.org/10.5194/acp-19-14607-2019, 2019. 
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This study investigates the complexation of Fe(II) and Fe(III) with glutamic acid under cloud water conditions and the effect on Fenton and photo-Fenton reactions and hydroxyl radical formation and their impact on amino acid oxidation.
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