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Modelling and experimental checking of the influence of substrate concentration on the first order kinetic constant in photo-processes

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dc.contributor.authorGómez Gómez, María
dc.contributor.authorMurcia Almagro, María Dolores
dc.contributor.authorGómez Gómez, Elisa
dc.contributor.authorOrtega Requena, Salvadora
dc.contributor.authorSánchez, A.
dc.contributor.authorThaikovskaya, O.
dc.contributor.authorBriantceva, N.
dc.contributor.departmentIngeniería Química
dc.contributor.otherFacultad de Química
dc.date.accessioned2026-02-25T08:47:58Z
dc.date.available2026-02-25T08:47:58Z
dc.date.copyright© 2016 Elsevier Ltd. All rights reserved
dc.date.issued2016-09-19
dc.description.abstractMost photoprocesses follow a pseudo first order kinetic law and, commonly, the kinetic parameter depends on the initial concentration of the substrate. In this work, a kinetic model, which explains this dependence on the substrate concentration and on the other operational variables, has been developed. In the model, mass transfer of substrate from the bulk solution to the wall of the photoreactor was assumed as the step determining the rate of the process. To check the model, methylene blue (MB) has been used as model substrate and photodegradation experiments have been carried out in an exciplex KrCl flow-through photoreactor, It was observed that the methylene blue conversion improved with a decrease in its initial concentration, in good agreement with the model. Also, by fitting the experimental data to the model, high correlation coefficients and a high degree of agreement between experimental and calculated conversion was obtained, which validates the model.
dc.formatapplication/pdf
dc.format.extent8
dc.identifier.citationJournal of Environmental Management Volume 183, Part 3, 1, 2016, pp. 818-825
dc.identifier.doihttps://doi.org/10.1016/j.jenvman.2016.09.033
dc.identifier.issn0301-4797
dc.identifier.urihttp://hdl.handle.net/10201/212802
dc.languageeng
dc.publisherElsevier
dc.relationThis work is a result of the 08683/PI/08 research project, financed by the Foundation Seneca, Agency of Science and Technology of the Region of Murcia (Spain), and the II PCTRM 2007-2010, by Tomsk State University JCI-2011-08964 (The Priority Direction of Development No. 1, the activities No. 3). M.D. Murcia was beneficiary of Juan de la Cierva scholarship from MICINN.
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0301479716306910
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectKinetic model
dc.subjectMethylene blue
dc.subjectUV
dc.subjectExcilamp
dc.subjectKrCl photoreactor
dc.subjectPhotodegradation
dc.subject.odsNo relacionado con ningún objetivo de desarrollo sostenible
dc.titleModelling and experimental checking of the influence of substrate concentration on the first order kinetic constant in photo-processes
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dspace.entity.typePublicationes
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