ZnO Nanoparticles with Controllable Ce Content for Efficient Photocatalytic Degradation of MB Synthesized by Polyol Method

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dc.contributor.author Flores Carrasco, Gregorio
dc.contributor.author Rodríguez Peña, Micaela
dc.contributor.author Urbieta, Ana
dc.contributor.author Fernández, Paloma
dc.contributor.author Rabanal Jiménez, María Eugenia
dc.date.accessioned 2021-03-23T08:55:28Z
dc.date.available 2021-03-23T08:55:28Z
dc.date.issued 2021-01
dc.identifier.bibliographicCitation Flores-Carrasco, G., Rodríguez-Peña, M., Urbieta, A., Fernández, P. & Rabanal, M. E. (2021). ZnO Nanoparticles with Controllable Ce Content for Efficient Photocatalytic Degradation of MB Synthesized by the Polyol Method. Catalysts, 11(1), 71.
dc.identifier.issn 2073-4344
dc.identifier.uri http://hdl.handle.net/10016/32202
dc.description.abstract This 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 ~30 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.sponsorship This research was supported by the projects TecNM (8134.20-PD), CONACYT-México, Comunidad Autónoma de Madrid (CAM-S2018/NMT-4411), MINECO/FEDER-MAT2015-65274-R, MINECO/FEDER-MAT2016-80875-C3-3R and UCM-Santander 2019 (PR87/19-22613).
dc.format.extent 20
dc.language.iso eng
dc.publisher MDPI
dc.rights © 2021 by the authors
dc.rights Atribución 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by/3.0/es/
dc.subject.other Ce-Doped Zno
dc.subject.other Nanoparticles
dc.subject.other Optical properties
dc.subject.other Photocatalytic activity
dc.title ZnO Nanoparticles with Controllable Ce Content for Efficient Photocatalytic Degradation of MB Synthesized by Polyol Method
dc.type article
dc.subject.eciencia Química
dc.identifier.doi https://doi.org/10.3390/catal11010071
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. MAT2016-80875-C3-3-R
dc.relation.projectID Gobierno de España. MAT2015-65274-R
dc.relation.projectID Comunidad de Madrid. S2018/NMT-4411
dc.type.version publishedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationissue 1
dc.identifier.publicationlastpage 20
dc.identifier.publicationtitle Catalysts
dc.identifier.publicationvolume 11
dc.identifier.uxxi AR/0000026634
dc.contributor.funder Ministerio de Economía y Competitividad (España)
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