Articles | Volume 22, issue 17
https://doi.org/10.5194/acp-22-11347-2022
https://doi.org/10.5194/acp-22-11347-2022
Research article
 | 
05 Sep 2022
Research article |  | 05 Sep 2022

The positive effect of formaldehyde on the photocatalytic renoxification of nitrate on TiO2 particles

Yuhan Liu, Xuejiao Wang, Jing Shang, Weiwei Xu, Mengshuang Sheng, and Chunxiang Ye

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Aghazadeh, M.: Preparation of Gd2O3 Ultrafine Nanoparticles by Pulse Electrodeposition Followed by Heat-treatment Method, Journal of Ultrafine Grained and Nanostructured Materials, 49, 80–86, https://doi.org/10.7508/jufgnsm.2016.02.04, 2016. 
Ahmed, A. Y., Kandiel, T. A., Ivanova, I., and Bahnemann, D.: Photocatalytic and photoelectrochemical oxidation mechanisms of methanol on TiO2 in aqueous solution, Appl. Surf. Sci., 319, 44–49, https://doi.org/10.1016/j.apsusc.2014.07.134, 2014. 
Aldener, M., Brown, S. S., Stark, H., Williams, E. J., Lerner, B. M., Kuster, W. C., Goldan, P. D., Quinn, P. K., Bates, T. S., Fehsenfeld, F. C., and Ravishankara, A. R.: Reactivity and loss mechanisms of NO3 and N2O5 in a polluted marine environment: Results from in situ measurements during New England Air Quality Study 2002, J. Geophys. Res.-Atmos., 111, D23S73, https://doi.org/10.1029/2006jd007252, 2006. 
Alexander, B., Sherwen, T., Holmes, C. D., Fisher, J. A., Chen, Q., Evans, M. J., and Kasibhatla, P.: Global inorganic nitrate production mechanisms: comparison of a global model with nitrate isotope observations, Atmos. Chem. Phys., 20, 3859–3877, https://doi.org/10.5194/acp-20-3859-2020, 2020. 
Atkinson, R.: Kinetics and mechanisms of the gas-phase reactions of the NO3 radical with organic-comounds, J. Phys Chem. Ref. Data, 20, 459–507, https://doi.org/10.1063/1.555887, 1991. 
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In this study, the influence of HCHO on renoxification on nitrate-doped TiO2 particles is investigated by using an experimental chamber. Mass NOx release is suggested to follow the NO3-NO3·-HNO3-NOx pathway, with HCHO involved in the transformation of NO3· to HNO3 through hydrogen abstraction. Our proposed reaction mechanism by which HCHO promotes photocatalytic renoxification is helpful for deeply understanding the atmospheric photochemical processes and nitrogen cycling.
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