Magnetically Separable Mixed-Phase alpha/gamma-Fe2O3 Catalyst for Photo-Fenton-like Oxidation of Rhodamine B

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dc.contributor.authorMagomedova, Asiyatcs
dc.contributor.authorIsaev, Abdulgalimcs
dc.contributor.authorOrudzhev, Faridcs
dc.contributor.authorSobola, Dinaracs
dc.contributor.authorKh. Rabadanov, Murtazalics
dc.contributor.authorRabadanova, Alinacs
dc.contributor.authorNabi, Shabanovcs
dc.contributor.authorZhu, Mingshancs
dc.contributor.authorEmirov, Ruslancs
dc.contributor.authorKh. Gadzhimagomedov, Sultanakhmedcs
dc.contributor.authorAlikhanov, Narimancs
dc.contributor.authorKaviyarasu, Kasinathancs
dc.coverage.issue5cs
dc.coverage.volume13cs
dc.date.accessioned2023-07-21T06:53:44Z
dc.date.available2023-07-21T06:53:44Z
dc.date.issued2023-05-11cs
dc.description.abstractIron oxides are widely used as catalysts for photo-Fenton-like processes for dye oxidation. In this study, we report on the synthesis of an a/?-Fe2O3 mixed-phase catalyst with magnetic properties for efficient separation. The catalyst was synthesized using glycine-nitrate precursors. The synthesized a/?-Fe2O3 samples were characterized using scanning electron microscopy, X-ray diffraction spectroscopy (XRD), Raman shift spectroscopy, X-ray photoelectron spectroscopy (XPS), and vibrating sample magnetometer (VSM). The diffraction peaks were indexed with two phases, a-Fe2O3 as the main phase (79.6 wt.%) and ?-Fe2O3 as the secondary phase (20.4 wt.%), determined using the Rietveld refinement method. The presence of Fe2+ was attributed to oxygen vacancies. The mixed-phase a/?-Fe2O3 catalyst exhibited remarkable photo-Fenton-like degradation performance for Rhodamine B (RhB) in neutral pH. The effects of operating parameters, including H2O2 concentration, catalyst concentration, and RhB concentration, on the degradation efficiency were investigated. The removal rates of color were 99.2% after 12 min at optimal conditions of photo-Fenton-like oxidation of RhB. The sample exhibited a high saturation magnetization of 28.6 emu/g. Additionally, the a/?-Fe2O3 mixed-phase catalyst showed long-term stability during recycle experiments, with only a 5% decrease in activity.en
dc.formattextcs
dc.format.extent1-13cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationCatalysts. 2023, vol. 13, issue 5, p. 1-13.en
dc.identifier.doi10.3390/catal13050872cs
dc.identifier.issn2073-4344cs
dc.identifier.orcid0000-0002-0008-5265cs
dc.identifier.other183726cs
dc.identifier.researcheridG-1175-2019cs
dc.identifier.scopus57189064262cs
dc.identifier.urihttp://hdl.handle.net/11012/213548
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofCatalystscs
dc.relation.urihttps://www.mdpi.com/2073-4344/13/5/872cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2073-4344/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectiron oxidesen
dc.subjecta/?-Fe2O3 mixed-phase catalysten
dc.subjectmagnetically separableen
dc.subjectRhodamine Ben
dc.subjectphoto-Fenton-likeen
dc.titleMagnetically Separable Mixed-Phase alpha/gamma-Fe2O3 Catalyst for Photo-Fenton-like Oxidation of Rhodamine Ben
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-183726en
sync.item.dbtypeVAVen
sync.item.insts2023.10.13 12:56:02en
sync.item.modts2023.10.13 12:14:59en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav fyzikycs
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