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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampBertazzoli, Rodnei-
dc.typeArtigopt_BR
dc.titleEffect of Fe2 + on the degradation of the pesticide profenofos by electrogenerated H2O2pt_BR
dc.contributor.authorRocha, Robson S.-
dc.contributor.authorSilva, Fernando L.-
dc.contributor.authorValim, Ricardo B.-
dc.contributor.authorBarros, Willyam R. P.-
dc.contributor.authorSteter, Juliana R.-
dc.contributor.authorBertazzoli, Rodnei-
dc.contributor.authorLanza, Marcos R. V.-
dc.subjectPeróxido de hidrogêniopt_BR
dc.subject.otherlanguageHydrogen peroxidept_BR
dc.description.abstractThe purpose of the study was to evaluate the degradation of the organophosphate pesticide profenofos in acidic medium using a gas diffusion electrode (GDE) modified with 5.0% cobalt phthalocyanine (CoPc). The degradation of profenofos was based on oxidation by H2O2 electrogenerated in situ, and experiments were performed in the absence or presence of Fe(II) catalyst. Removal of the pesticide by anodic oxidation was minimal (~ 20%), and reached only 36% when H2O2 was electrogenerated in the absence of catalyst. However, in the presence of 0.15 mmol L− 1 FeSO4·7H2O (electro-Fenton reaction), profenofos removal attained 91% after 60 min of process time while total organic carbon (TOC) was reduced by 37%. Prolonged electrolysis under similar electro-Fenton conditions showed that 100% profenofos removal could be achieved after 2 h and a 89.9% reduction in TOC could be attained after 4 h. Analysis by gas chromatography–mass spectrometry of the by-products formed during the process revealed the progressive degradation of profenofos to o- and p-benzoquinone, with subsequent rupture of the aromatic ring to form oxalic acid and, ultimately, CO2 and H2O. It is concluded that wastewater treatments involving H2O2 electrogeneration in a CoPc-modified GDE were effective in removing profenofos and TOC from commercial formulations of profenofospt_BR
dc.relation.ispartofJournal of electroanalytical chemistrypt_BR
dc.publisher.cityAmsterdampt_BR
dc.publisher.countryPaíses Baixospt_BR
dc.publisherElsevierpt_BR
dc.date.issued2016-
dc.date.monthofcirculationDec.pt_BR
dc.language.isoengpt_BR
dc.description.volume783pt_BR
dc.description.firstpage100pt_BR
dc.description.lastpage105pt_BR
dc.rightsFechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn1572-6657pt_BR
dc.identifier.eissn1873-2569pt_BR
dc.identifier.doi10.1016/j.jelechem.2016.11.038pt_BR
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S1572665716306415pt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsorshipCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESpt_BR
dc.description.sponsorshipFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPpt_BR
dc.description.sponsordocumentnumber446436/2014-3pt_BR
dc.description.sponsordocumentnumbernão tempt_BR
dc.description.sponsordocumentnumber2007/08314-3; 2009/15357-6; 2013/02762-5pt_BR
dc.date.available2020-09-29T19:10:14Z-
dc.date.accessioned2020-09-29T19:10:14Z-
dc.description.provenanceSubmitted by Mariana Aparecida Azevedo (mary1@unicamp.br) on 2020-09-29T19:10:14Z No. of bitstreams: 0. Added 1 bitstream(s) on 2021-02-17T13:00:29Z : No. of bitstreams: 1 000390627500014.pdf: 574106 bytes, checksum: e6f5d3bb851e123613b423db0f716363 (MD5)en
dc.description.provenanceMade available in DSpace on 2020-09-29T19:10:14Z (GMT). No. of bitstreams: 0 Previous issue date: 2016en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/350184-
dc.contributor.departmentDepartamento de Engenharia de Manufatura e Materiaispt_BR
dc.contributor.unidadeFaculdade de Engenharia Mecânicapt_BR
dc.subject.keywordProfenofospt_BR
dc.subject.keywordElectro-fenton processpt_BR
dc.subject.keywordGas diffusion electrodept_BR
dc.subject.keywordOxidative degradationpt_BR
dc.identifier.source000390627500014pt_BR
dc.creator.orcid0000-0002-2732-2312pt_BR
dc.type.formArtigopt_BR
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