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An alternative methodology for the evaluation of photocatalytic activity of polymeric coatings by monitoring dye degradation

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dc.contributor.authorSandúa Fernández, Xabier
dc.contributor.authorRivero Fuente, Pedro J.
dc.contributor.authorEsparza Gorráiz, Joseba
dc.contributor.authorRodríguez Trías, Rafael
dc.contributor.departmentIngenieríaes_ES
dc.contributor.departmentIngeniaritzaeu
dc.contributor.departmentInstitute for Advanced Materials and Mathematics - INAMAT2en
dc.date.accessioned2023-04-05T17:54:16Z
dc.date.available2023-04-05T17:54:16Z
dc.date.issued2022
dc.date.updated2023-04-05T17:48:35Z
dc.description.abstractThis work provides an alternative method for evaluating the photodegradation behaviour of different types of dyes such as Methylene Blue, Rhodamine B, Congo Red, Metanil Yellow, and Malachite Green. In this methodology, the coating is dyed with the chosen colorant and two beams of light are combined and channelled to a spot on the dyed coating through an optical fibre, the first one from an ultraviolet (UV) source (which is the responsible of activating photocatalysis) and the second one from a Visible light source, which is employed to monitor changes in colour along the time. The photocatalytic coating selected for testing this methodology consists of a mat of electrospun poly (acrylic acid) (PAA) fibres that acts as base film, furtherly coated by using layer-by-layer (LbL) assembly technique for the immobilization of two different photocatalytic metal oxide precursors (TiO2 and Fe2O3) nanoparticles. The morphological characterization of the samples has been implemented by means of scanning electron microscopy (SEM), confocal microscopy, and water contact angle measurements in order to analyse the resultant thickness, roughness, electrospun fibre diameter, and wettability. The experimental results clearly demonstrate the validity of the methodology to measure the photocatalytic activity in all dyed coatings, although significant differences have been observed depending on the selected dye.en
dc.description.sponsorshipThis research was funded by the Government of Navarra—Department of Economic Development (PC019/020 ARGITU).en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationSandua, X., Rivero, P. J., Palacio, J. F., Esparza, J., & Rodríguez, R. (2022). An alternative methodology for the evaluation of photocatalytic activity of polymeric coatings by monitoring dye degradation. Coatings, 12(10), 1529. https://doi.org/10.3390/coatings12101529en
dc.identifier.doi10.3390/coatings12101529
dc.identifier.issn2079-6412
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/45076
dc.language.isoengen
dc.publisherMDPIen
dc.relation.ispartofCoatings 2022, 12(10), 1529en
dc.relation.projectIDinfo:eu-repo/grantAgreement/Gobierno de Navarra//PC019%020 ARGITUen
dc.relation.publisherversionhttps://doi.org/10.3390/coatings12101529
dc.rights© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.en
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectCoatingsen
dc.subjectDyesen
dc.subjectElectrospinningen
dc.subjectLayer-by-layer assemblyen
dc.subjectMetal oxidesen
dc.subjectPhotocatalysisen
dc.titleAn alternative methodology for the evaluation of photocatalytic activity of polymeric coatings by monitoring dye degradationen
dc.typeArtículo / Artikuluaes
dc.typeinfo:eu-repo/semantics/articleen
dc.type.versionVersión publicada / Argitaratu den bertsioaes
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dspace.entity.typePublication
relation.isAuthorOfPublicationccf8da2b-8e86-4e57-835a-358562d70571
relation.isAuthorOfPublicationc2c9f4e4-e7ea-4d7b-8cf6-a529e456dc3e
relation.isAuthorOfPublication.latestForDiscoveryccf8da2b-8e86-4e57-835a-358562d70571

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