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Iodide conversion to iodate in aqueous and solid aerosols exposed to ozone

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dc.contributor.authorMoreno, Carolina
dc.contributor.authorBaeza Romero, María Teresa
dc.contributor.authorSanz Monasterio, Mikel
dc.contributor.authorGálvez González, Óscar
dc.contributor.authorLópez Arza, Vicente
dc.contributor.authorIann, James C.
dc.contributor.authorEspíldora, Eva
dc.contributor.orcidhttps://orcid.org/0000-0001-6891-4982
dc.contributor.orcidhttps://orcid.org/0000-0002-8390-0949
dc.contributor.orcidhttps://orcid.org/0000-0001-6963-9812
dc.contributor.orcidhttps://orcid.org/0000-0001-6003-4497
dc.date.accessioned2025-01-03T11:23:17Z
dc.date.available2025-01-03T11:23:17Z
dc.date.issued2020-02-17
dc.descriptionEste es el manuscrito aceptado del artículo. La versión registrada fue publicada por primera vez en Phys. Chem. Chem. Phys., 2020, 22, 5625-5637, está disponible en línea en el sitio web del editor: https://doi.org/10.1039/C9CP05601G. This is the accepted manuscript of the article. The registered version was first published in Phys. Chem. Chem. Phys., 2020, 22, 5625-5637, is available online at the publisher's website: https://doi.org/10.1039/C9CP05601G.
dc.description.abstractThe aqueous-phase and surface reactions of ozone (O3) with iodide (I−) in/on seawater have been recently found to be a strong atmospheric source of iodine. In addition, ozone also reacts with I− in solid and aqueous sea-salt aerosol. However, the primary products of the heterogeneous reactions of ozone with I− have not been clarified. In this paper, solid and aqueous KI aerosols have been exposed to ozone in an aerosol flow tube system and I− and iodate (IO3−) concentrations have been measured by UV-Vis spectroscopy. The results of these experiments have been combined with a kinetic model to elucidate the primary products of the aqueous and surface reactions. The reaction of ozone with aqueous iodide has been inferred to originate different products depending on whether it occurs at the surface via O3 adsorption (product I2−) or in the aqueous phase via O3 solvation (product IO−). The surface reaction of ozone with solid KI in the presence of water vapor forms KIO3, and other species, which are likely to be gaseous. Although the reactions have been studied in aerosols, the results can be extrapolated to aqueous solutions as well.en
dc.description.versionversión final
dc.identifier.citationC. Moreno, M-T. Baeza-Romero, M. Sanz, O. Gálvez, V. López-Arza, J. C. Ianni and E. Espíldora. Iodide conversion to iodate in aqueous and solid aerosols exposed to ozone Phys. Chem. Chem. Phys., 2020, 22, 5625-5637 ; https://doi.org/10.1039/C9CP05601G
dc.identifier.doihttps://doi.org/10.1039/C9CP05601G
dc.identifier.issn1463-9076; eISSN: 1463-9084
dc.identifier.urihttps://hdl.handle.net/20.500.14468/25099
dc.journal.titlePhysical Chemistry Chemical Physics
dc.journal.volume10
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.relation.centerFacultades y escuelas::Facultad de Ciencias
dc.relation.departmentFísica Interdisciplinar
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject23 Química::2307 Química física
dc.titleIodide conversion to iodate in aqueous and solid aerosols exposed to ozoneen
dc.typeartículoes
dc.typejournal articleen
dspace.entity.typePublication
relation.isAuthorOfPublicationa590159f-d18a-405e-91bc-d7c98b8684f2
relation.isAuthorOfPublication8c553812-bd9e-4899-87cc-ad40e9bd8338
relation.isAuthorOfPublication.latestForDiscoverya590159f-d18a-405e-91bc-d7c98b8684f2
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