The effects of annealing temperature on the thickness, morphology, band gap energy, and photocatalytic performance of ZIF-8-derived ZnO/TiO2 thin films

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dc.authoridYurtsever, Husnu Arda/0000-0002-1920-8149
dc.contributor.authorIloglu, Onur
dc.contributor.authorYurtsever, Husnu Arda
dc.date.accessioned2025-01-06T17:45:10Z
dc.date.available2025-01-06T17:45:10Z
dc.date.issued2024
dc.description.abstractMulti-oxide photocatalytic materials derived from metal organic frameworks (MOFs) are attracting widespread attention in recent years. The heterostructure originating from oxide-oxide junctions and nonmetal doping due to the combustion of organics from MOFs provide desirable properties to the photocatalytic material. In this study, the effects of annealing temperature on the material properties and photocatalytic activity of ZIF-8-derived ZnO/TiO2 thin films were investigated. XRD, XPS, and FTIR analyses confirmed the oxidation of ZIF-8 to ZnO and SEM analysis revealed the formation of a porous structure at the annealing temperature of 500 degrees C. UV-Vis analysis indicated that the band gap energy decreased from 3.23 to 2.04 eV with increasing annealing temperature. Photocatalytic methylene blue degradation experiments showed that the thin film annealed at 500 degrees C had higher activity than the films annealed at lower temperatures. The thin film annealed at 500 degrees C had more than two times the dye degradation efficiency of the film annealed at 400 degrees C (72% and 33%, respectively). This film was also active in the photocatalytic degradation of caffeic acid which is a colorless pollutant. The high photocatalytic activity of the thin film annealed at higher temperature was attributed to its narrower band gap energy, higher porosity, and more efficient electron-hole separation, which are due to the presence of heterostructure, nonmetal doping, and deficient zones formed by the oxidation of imidazole rings.
dc.description.sponsorshipScientific and Technological Research Council of Turkiye (TUBIdot;TAK); Adana Alparslan Turkes Science and Technology University Scientific Research Coordination Unit, Turkiye [19103015]; TUBIdot;TAK 2210-C National MSc/MA Scholarship Program in the Priority Fields in Science and Technology, Turkiye
dc.description.sponsorshipOpen access funding provided by the Scientific and Technological Research Council of Turkiye (TUB & Idot;TAK). This study was supported by Adana Alparslan Turkes Science and Technology University Scientific Research Coordination Unit, Turkiye. Project Number: 19103015. Onur & Idot;loglu was supported by TUB & Idot;TAK 2210-C National MSc/MA Scholarship Program in the Priority Fields in Science and Technology, Turkiye.
dc.identifier.doi10.1007/s10854-024-12932-7
dc.identifier.issn0957-4522
dc.identifier.issn1573-482X
dc.identifier.issue18
dc.identifier.scopus2-s2.0-85196618303
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1007/s10854-024-12932-7
dc.identifier.urihttps://hdl.handle.net/20.500.14669/3339
dc.identifier.volume35
dc.identifier.wosWOS:001253683600006
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of Materials Science-Materials in Electronics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241211
dc.subjectZıf-8
dc.subjectComposıte
dc.subjectTıo2-At-Zıf-8
dc.subjectNanopartıcles
dc.subjectDegradatıon
dc.subjectFabrıcatıon
dc.subjectCo2
dc.titleThe effects of annealing temperature on the thickness, morphology, band gap energy, and photocatalytic performance of ZIF-8-derived ZnO/TiO2 thin films
dc.typeArticle

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