ZnO nanoparticles with controllable Ce content for efficient photocatalytic degradation of MB synthesized by the Polyol method

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dc.contributor.authorFlores Carrasco, Gregorio
dc.contributor.authorRodríguez Peña, Micaela
dc.contributor.authorUrbieta Quiroga, Ana Irene
dc.contributor.authorFernández Sánchez, Paloma
dc.contributor.authorRabanal, María Eugenia
dc.date.accessioned2023-06-17T08:59:07Z
dc.date.available2023-06-17T08:59:07Z
dc.date.issued2021-01
dc.description©2021 by the authors. Licensee MDPI This research was supported by the projects TecNM (8134.20-PD), CONACYT-Mexico and Comunidad Autonoma de Madrid (CAM-S2018/NMT-4411). Also, the authors are grateful the support via the projects MINECO/FEDER-MAT2015-65274-R, MINECO/FEDER-MAT2016-80875-C3-3R and UCM-Santander 2019 (PR87/19-22613).
dc.description.abstractThis paper reports on the synthesis of Ce-doped ZnO (CZO) nanoparticles (NPs) by an alternative polyol method at low temperature. The method, facile and rapid, uses acetate-based precursors, ethylene glycol as solvent, and polyvinylpyrrolidone as capping agent. The effects of the Ce-doping concentration (ranging from 0 to 8.24 atomic%) on the structural, morphological, compositional, optical, luminescence, and photocatalytic properties of the NPs were investigated by several techniques. The structural findings confirmed that the CZO NPs have a typical hexagonal wurtzite-type structure with a preferred orientation along the (101) plane. The results obtained by Field Emission Scanning Electron Microscopy (FESEM) and Transmission Electron Microscopy (TEM) revealed that the NPs size decreased (from similar to 30 to similar to 16 nm) with an increase in the Ce-doping concentration. Energy Dispersive X-Ray Spectroscopy (EDS) and High Resolution Transmission Microscopy (HRTEM) results confirmed the incorporation of Ce ions into the ZnO lattice. Ce-doping influences the photoluminescence (PL) emission compared to that of pure ZnO. The PL emission is related to the presence of different kinds of defects, which could take part in charge transfer and/or trapping mechanisms, hence playing an essential role in the photocatalytic activity (PCA). In fact, in this work we report an enhancement of PCA as a consequence of Ce-doping. In this sense, the best results were obtained for samples doped with 3.24 atomic%, that exhibited a photocatalytic degradation efficiency close to 99% after 60 min ultraviolet (UV) illumination, thus confirming the viability of Ce-doping for environmental applications.
dc.description.departmentDepto. de Física de Materiales
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Economía y Competitividad (MINECO) / FEDER
dc.description.sponsorshipComunidad de Madrid
dc.description.sponsorshipUniversidad Complutense de Madrid / Banco de Santander
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/64045
dc.identifier.doi10.3390/catal11010071
dc.identifier.issn2073-4344
dc.identifier.officialurlhttp://dx.doi.org/10.3390/catal11010071
dc.identifier.relatedurlhttps://www.mdpi.com/2073-4344/11/1/71
dc.identifier.urihttps://hdl.handle.net/20.500.14352/7818
dc.issue.number1
dc.journal.titleCatalysts
dc.language.isoeng
dc.publisherMDPI
dc.relation.projectID(MAT2015-65274-R; MAT2016-80875-C3-3R)
dc.relation.projectIDCAM-S2018/NMT-4411
dc.relation.projectIDPR87/19-22613
dc.rightsAtribución 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/es/
dc.subject.cdu538.9
dc.subject.keywordCe-doped ZnO
dc.subject.keywordNanoparticles
dc.subject.keywordOptical properties
dc.subject.keywordPhotocatalytic activity
dc.subject.ucmFísica de materiales
dc.subject.ucmFísica del estado sólido
dc.subject.unesco2211 Física del Estado Sólido
dc.titleZnO nanoparticles with controllable Ce content for efficient photocatalytic degradation of MB synthesized by the Polyol method
dc.typejournal article
dc.volume.number11
dspace.entity.typePublication
relation.isAuthorOfPublicationf8df9b48-67a9-4518-9c37-a6bd1b37c150
relation.isAuthorOfPublicationdaf4b879-c4a8-4121-aaff-e6ba47195545
relation.isAuthorOfPublication.latestForDiscoveryf8df9b48-67a9-4518-9c37-a6bd1b37c150
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