Magnetic nanostructured material as heterogeneous catalyst for degradation of AB210 dye in tannery wastewater by electro-Fenton process

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de Sergipe (UFS)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorCruz, Daiane R.S.-
Autor(es): dc.creatorde Jesus, Gleyce K.-
Autor(es): dc.creatorSantos, Clecia A.-
Autor(es): dc.creatorSilva, Wenes R.-
Autor(es): dc.creatorWisniewski, Alberto-
Autor(es): dc.creatorCunha, Graziele C.-
Autor(es): dc.creatorRomão, Luciane P.C. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:46:43Z-
Data de disponibilização: dc.date.available2022-02-22T00:46:43Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.chemosphere.2021.130675-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/206304-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/206304-
Descrição: dc.descriptionDegradation of the Acid Black 210 dye (AB210) in synthetic and industrial effluent samples was performed, for the first time, using a heterogeneous electro-Fenton (EF) process with a CoFe2O4/NOM magnetic hybrid catalyst (Hb200). The technique was compared with electrochemical oxidation using electrogenerated hydrogen peroxide (AO-H2O2). The catalyst was synthesized by the sol-gel technique, using water with a high content of natural organic matter (NOM) as an eco-friendly solvent. Analyses using XRD, FTIR, and TEM showed the formation of hybrid nanostructures with average size of 4.85 nm. Electrochemical assays were performed with a GDE/BDD electrode pair, electrogenerated H2O2, and current density of 45.4 mA cm−2. For the synthetic solution of AB210 at pH 3, the EF process presented higher efficiency, compared to AO-H2O2, with the optimum condition achieved using a lower mass of the catalyst (30 mg) and a higher concentration of the dye (55 mg L−1). The EF method also showed superior performance in the treatment of an industrial effluent with high organic load, at pH 6, with almost complete mineralization of AB210 (95%) in 7 h, while the AO-H2O2 process achieved 82% mineralization. The Hb200 hybrid maintained excellent catalytic activity during reuse in 3 cycles, with only 10% lower mineralization efficiency in the last cycle. GC-MS analysis showed that most of the contaminants in the effluent, including bis(2-ethylhexyl) phthalate, one of the most toxic, were eliminated or transformed after the EF treatment with Hb200.-
Descrição: dc.descriptionFundação de Apoio à Pesquisa e à Inovação Tecnológica do Estado de Sergipe-
Descrição: dc.descriptionUniversidade Federal de Sergipe-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionChemistry Department Federal University of Sergipe (UFS)-
Descrição: dc.descriptionInstitute of Chemistry UNESP National Institute of Alternative Technologies for Detection Toxicological Evaluation and Removal of Micropollutants and Radioactive Materials (INCT-DATREM), P.O. Box 355-
Descrição: dc.descriptionInstitute of Chemistry UNESP National Institute of Alternative Technologies for Detection Toxicological Evaluation and Removal of Micropollutants and Radioactive Materials (INCT-DATREM), P.O. Box 355-
Descrição: dc.descriptionCNPq: 310921/2019–8-
Descrição: dc.descriptionCNPq: 465571/2014–0-
Descrição: dc.descriptionCAPES: 88887136426/2017/00-
Idioma: dc.languageen-
Relação: dc.relationChemosphere-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAzo dye-
Palavras-chave: dc.subjectBDD anode-
Palavras-chave: dc.subjectCobalt ferrite-
Palavras-chave: dc.subjectEffluent-
Palavras-chave: dc.subjectMineralization-
Título: dc.titleMagnetic nanostructured material as heterogeneous catalyst for degradation of AB210 dye in tannery wastewater by electro-Fenton process-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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