Synergistic effect of Fe and Co metals for the enhanced activation of hydrogen peroxide in the heterogeneous electro-Fenton process by Co-doped ZnFe layered double hydroxide

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dc.authorid0000-0002-5713-3141
dc.authorid0000-0001-6940-5047
dc.contributor.authorKeyikoglu, Ramazan
dc.contributor.authorKhataee, Alireza
dc.contributor.authorOrooji, Yasin
dc.contributor.authorKobya, Mehmet
dc.date.accessioned2026-02-12T21:05:04Z
dc.date.available2026-02-12T21:05:04Z
dc.date.issued2022
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractHeterogeneous electro-Fenton (EF) is a powerful technology for the removal of emerging organic pollutants from wastewater. However, the development of catalysts with high activity towards the production of (OH)-O-center dot by decomposing H2O2 remains a challenge. Herein, Co-doped ZnFe LDH as a heterogeneous catalyst with 2D plate-like morphology was produced by a co-precipitation method. Co-doping increased the pore volume of ZnFe LDH from 0.188 cm(3)/g to 0.2711 cm(3)/g and pore diameter from 5.305 nm and 9.39 nm. EF process consisted of a hydrothermally activated graphite felt cathode and a platinum plate anode. The Phenazopyridine (PHP) removal efficiency of the EF process in the presence of Co-doped ZnFe LDH is twice that of the electrochemical process. Additionally, Co-doping increased the performance of ZnFe LDH from 60 % to 82 % due to a synergistic effect of redox couples of Fe2+/Fe3+ and Co2+/Co3+. The Co-doped ZnFe LDH/EF process achieved complete removal of PHP in real wastewater in 4 h and at natural pH. After 7 reuse cycles, the catalyst retained 91 % of its performance. The eight by-products of PHP were determined by GC-MS. This work provides a way sustainable approach for the efficient removal of organic pharmaceuticals from wastewaters.
dc.description.sponsorshipScientific and Technical Research Council of Turkey (TUBITAK) [120Y350]
dc.description.sponsorshipWe would like to thank the Scientific and Technical Research Council of Turkey (TUBITAK, Project Number: 120Y350) for funding the research project.
dc.identifier.doi10.1016/j.jece.2022.108875
dc.identifier.issn2213-2929
dc.identifier.issn2213-3437
dc.identifier.issue6
dc.identifier.scopus2-s2.0-85142700693
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jece.2022.108875
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6761
dc.identifier.volume10
dc.identifier.wosWOS:000964333200001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofJournal of Environmental Chemical Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260212
dc.subjectEmerging pollutants
dc.subjectGraphite felt
dc.subjectHydrotalcite
dc.subjectNanomaterials
dc.subjectWastewater treatment
dc.titleSynergistic effect of Fe and Co metals for the enhanced activation of hydrogen peroxide in the heterogeneous electro-Fenton process by Co-doped ZnFe layered double hydroxide
dc.typeArticle

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