Facile synthesis of cobalt-doped zinc oxide thin films for highly efficient visible light photocatalysts

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dc.contributor.authorYildirim, Ozlem Altintas
dc.contributor.authorArslan, Hanife
dc.contributor.authorSonmezoglu, Savas
dc.date.accessioned2020-03-26T19:24:14Z
dc.date.available2020-03-26T19:24:14Z
dc.date.issued2016
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractCobalt-doped zinc oxide (Co:ZnO) thin films with dopant contents ranging from 0 to 5 at.% were prepared using the sol-gel method, and their structural, morphological, optical, and photocatalytic properties were characterized. The effect of the dopant content on the photocatalytic properties of the films was investigated by examining the degradation behavior of methylene blue (MB) under visible light irradiation, and a detailed investigation of their photocatalytic activities was performed by determining the apparent quantum yields (AQYs). Co2+ ions were observed to be substitutionally incorporated into Zn2+ sites in the ZnO crystal, leading to lattice parameter constriction and band gap narrowing due to the photoinduced carriers produced under the visible light irradiation. Thus, the light absorption range of the Co:ZnO films was improved compared with that of the undoped ZnO film, and the Co:ZnO films exhibited highly efficient photocatalytic activity (similar to 92% decomposition of MB after 60-min visible light irradiation for the 3 at.% Co:ZnO film). The AQYs of the Co:ZnO films were greatly enhanced under visible light irradiation compared with that of the undoped ZnO thin film, demonstrating the effect of the Co doping level on the photocatalytic activity of the films. (C) 2016 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipEuropean Cooperation in Science and Technology through COST Action Nanospectroscopy, Scientific and Technological Research Council of Turkey (TUBITAK) [MP1302, 112T981]; Scientific Research Commission of Karamanoglu Mehmetbey UniversityKaramanoglu Mehmetbey University [30-M-12]; Scientific Research Foundation of Selcuk UniversitySelcuk University [15401123]; TUBITAKTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [114Z956]en_US
dc.description.sponsorshipThe authors would like to thank the European Cooperation in Science and Technology through COST Action MP1302 Nanospectroscopy, Scientific and Technological Research Council of Turkey (TUBITAK Grant number 112T981), Scientific Research Commission of Karamanoglu Mehmetbey University under Project No. 30-M-12 and the Scientific Research Foundation of Selcuk University under Project No. 15401123 for the financial support of this research. Finally, the author (H. Arslan) would like to thank TUBITAK under Project No. 114Z956 for their financial supports during her studies.en_US
dc.identifier.doi10.1016/j.apsusc.2016.08.069en_US
dc.identifier.endpage121en_US
dc.identifier.issn0169-4332en_US
dc.identifier.issn1873-5584en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage111en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.apsusc.2016.08.069
dc.identifier.urihttps://hdl.handle.net/20.500.12395/33608
dc.identifier.volume390en_US
dc.identifier.wosWOS:000385900700016en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.relation.ispartofAPPLIED SURFACE SCIENCEen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectCo:ZnOen_US
dc.subjectThin filmen_US
dc.subjectStructure-electronic propertiesen_US
dc.subjectPhotocatalysisen_US
dc.subjectVisible light degradationen_US
dc.subjectDopant contenten_US
dc.titleFacile synthesis of cobalt-doped zinc oxide thin films for highly efficient visible light photocatalystsen_US
dc.typeArticleen_US

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