Methylene blue treatment with zero-valent iron/pyrite/H2O2 system under static and continuous flow conditions: Reaction mechanism and toxicity evaluation

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dc.authoridYILDIZ, ilker/0000-0001-5761-655X
dc.authoridKantar, Cetin/0000-0001-9747-9115
dc.contributor.authorOral, Ozlem
dc.contributor.authorArslan, Sevki
dc.contributor.authorDogan, Nazime Mercan
dc.contributor.authorYildiz, Ilker
dc.contributor.authorKantar, Cetin
dc.contributor.authorAbdelsalam, Amine Hafis
dc.contributor.authorKuzucu, Volkan
dc.date.accessioned2025-01-27T20:24:33Z
dc.date.available2025-01-27T20:24:33Z
dc.date.issued2024
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractLaboratory batch and continuous flow studies, coupled with surface and toxicity analysis, were performed to evaluate methylene blue treatment by heterogeneous Fenton process using zero-valent iron (ZVI) and pyrite as co-catalyst. The use of pyrite in batch reactors significantly enhanced methylene blue treatment by the ZVI/H2O2 system because of improved iron redox cycling. The continuous-flow experiments revealed that the reactor performance increased in the order of: ZVI/H2O2 < pyrite/H2O2 < ZVI/pyrite/H2O2 under dynamic flow conditions. The methylene blue treatment by the ternary ZVI/pyrite/H2O2 system was described by an initial degradation of methylene blue with *OH radicals, followed by the adsorption and/or co-precipitation of degradation intermediates with some spherical particles. The surface analysis showed that these spherical particles formed, even at pH less than 4. The genotoxicity and cytotoxicity tests performed on mouse embryonic fibroblast (3 T3-L1) and human embryonic kidney (HEK293) cell lines showed that the Fenton treatment of methylene blue using the ZVI/pyrite/H2O2 system resulted in the formation of degradation species with much lower toxicity levels relative to methylene blue. Moreover, the Fenton degradation species of methylene blue significantly enhanced the metabolic activity of several bacterial strains, including E. coli ATCC 8739 and P. aeruginosa PAO1.
dc.description.sponsorshipScientific and Technological Research Council of Turkiye (TUBITAK) [122Y183]; anakkale Onsekiz Mart University (COMU) , Office of Scientific Research Projects [FDK-2022-3975]; TUBITAK; COMU
dc.description.sponsorshipThis funding for the study was partially provided by the Scientific and Technological Research Council of Turkiye (TUBITAK) (Grant #: 122Y183) and Canakkale Onsekiz Mart University (COMU) , Office of Scientific Research Projects (Grant #: FDK-2022-3975) . The authors would like to thank TUBITAK and COMU for their supports.
dc.identifier.doi10.1016/j.jiec.2024.04.044
dc.identifier.endpage161
dc.identifier.issn1226-086X
dc.identifier.issn1876-794X
dc.identifier.scopus2-s2.0-85191764016
dc.identifier.scopusqualityQ1
dc.identifier.startpage149
dc.identifier.urihttps://doi.org/10.1016/j.jiec.2024.04.044
dc.identifier.urihttps://hdl.handle.net/20.500.12428/22273
dc.identifier.volume139
dc.identifier.wosWOS:001314148700001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Inc
dc.relation.ispartofJournal of Industrial and Engineering Chemistry
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectZero-valent iron
dc.subjectPyrite
dc.subjectMethylene blue
dc.subjectDynamic flow reactor
dc.subjectFenton
dc.subjectGenotoxic and cytotoxic analysis
dc.titleMethylene blue treatment with zero-valent iron/pyrite/H2O2 system under static and continuous flow conditions: Reaction mechanism and toxicity evaluation
dc.typeArticle

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