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.authorKarakas, Ibrahim Hakki
dc.contributor.authorKarakas, Zeynep Karcioglu
dc.date.accessioned2024-10-04T18:53:54Z
dc.date.available2024-10-04T18:53:54Z
dc.date.issued2023
dc.departmentBayburt Üniversitesien_US
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 degrees C. Thermogravimetric analysis was performed on the precursor sample in air atmosphere. During this analysis, the gases released up to 1200 degrees 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 degrees C for temperature, and 4400 mu W/cm(2) 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.en_US
dc.description.sponsorshipBayburt University Scientific Research Projects Coordination Unit [2018/01-69001-07]en_US
dc.description.sponsorshipBayburt University Scientific Research Projects Coordination Unit, Grant/Award Number: 2018/01-69001-07en_US
dc.identifier.doi10.1111/cote.12647
dc.identifier.endpage293en_US
dc.identifier.issn1472-3581
dc.identifier.issn1478-4408
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85140065652en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage276en_US
dc.identifier.urihttps://doi.org/10.1111/cote.12647
dc.identifier.urihttp://hdl.handle.net/20.500.12403/3780
dc.identifier.volume139en_US
dc.identifier.wosWOS:000869917000001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofColoration Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectMagnetic-Propertiesen_US
dc.subjectSol-Gelen_US
dc.subjectHydrothermal Synthesisen_US
dc.subjectThermal-Decompositionen_US
dc.subjectMethylene-Blueen_US
dc.subjectDegradationen_US
dc.subjectSpinelen_US
dc.subjectSizeen_US
dc.subjectCoprecipitationen_US
dc.subjectNanopowdersen_US
dc.titleThe effects of heat treatment temperatures on photocatalytic activity of cobalt ferrite nanoparticles synthesised by microwave-assisted combustion methoden_US
dc.typeArticleen_US

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