The effects of heat treatment temperatures on photocatalytic activity of cobalt ferrite nanoparticles synthesised by microwave-assisted combustion method

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dc.contributor.authorKarakaş, İbrahim Hakkı
dc.contributor.authorKarcioğlu Karakaş, Zeynep
dc.date.accessioned2026-02-28T12:09:00Z
dc.date.available2026-02-28T12:09:00Z
dc.date.issued2023
dc.departmentBayburt Üniversitesi
dc.description.abstractIn this study, the effects on the photocatalytic activities of particles after heat treatment has been applied to cobalt ferrite nanoparticles produced by microwave-assisted combustion method were observed. The heat treatment applied to the samples was produced with only the microwave effect, at temperatures ranging from 300 to 1000°C. Thermogravimetric analysis was performed on the precursor sample in air atmosphere. During this analysis, the gases released up to 1200°C were identified with a Fourier-transform infrared (FTIR) spectrometer integrated into a thermogravimetric analysis system. Then, the cobalt ferrite nanoparticles produced with heat treatments applied at various temperatures were used as a photocatalyst to remove the dyestuff content in synthetic wastewaters prepared by using Astrazon Red GTL textile dye by photocatalytic oxidation, and their photocatalytic activities were compared. In these experiments, the operational parameters for photocatalysis processes were applied as 400 rpm for stirring speed, 50 mg/L for initial contaminant concentration, 0.5 g/L for catalyst dosage, 25°C for temperature, and 4400 ?W/cm2 for light intensity. As a result of the experiments, it was observed that the crystal structure of the cobalt ferrite nanoparticles produced with the increase of the applied heat treatment temperature improved significantly. The obtained data show a strong relationship between the structural properties of materials and their photocatalytic activities. In addition, it was determined that the dyestuff in the solution was completely degraded in the experiments, and it was determined that all processes were compatible with the pseudo-first-order kinetic model. © 2022 Society of Dyers and Colourists.
dc.description.sponsorshipBayburt Üniversitesi, BÜ
dc.identifier.doi10.1111/cote.12647
dc.identifier.endpage293
dc.identifier.issn14723581
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85140065652
dc.identifier.scopusqualityQ2
dc.identifier.startpage276
dc.identifier.urihttps://doi.org/10.1111/cote.12647
dc.identifier.urihttps://hdl.handle.net/20.500.12403/5784
dc.identifier.volume139
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherJohn Wiley and Sons Inc
dc.relation.ispartofColoration Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_Scopus_20260218
dc.subjectCobalt
dc.subjectCombustion
dc.subjectCrystal structure
dc.subjectFerrite
dc.subjectFourier transform infrared spectroscopy
dc.subjectHeat treatment
dc.subjectNanoparticles
dc.subjectThermogravimetric analysis
dc.subjectAfter-heat treatment
dc.subjectAir atmosphere
dc.subjectCobalt ferrite nanoparticles
dc.subjectCombustion method
dc.subjectEffect of heat treatments
dc.subjectHeat treatment temperature
dc.subjectMicrowave-assisted combustions
dc.subjectMicrowaves effects
dc.subjectPhotocatalytic activities
dc.subjectSynthesised
dc.subjectPhotocatalytic activity
dc.subjectCrystal Structure
dc.subjectExperimentation
dc.subjectGravimetry
dc.subjectHeat Treatment
dc.subjectProcesses
dc.subjectTemperature
dc.subjectThermal Analysis
dc.titleThe effects of heat treatment temperatures on photocatalytic activity of cobalt ferrite nanoparticles synthesised by microwave-assisted combustion method
dc.typeArticle

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