Voltammetric and spectroscopic studies of the interaction between copper (II) ions with the pesticide carbendazim and its effect in the soil

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dc.citation.issue5
dc.citation.volumev. 22
dc.contributor.authorCosta, Isis Marques [UNIFESP]
dc.contributor.authorCodognoto, Lucia [UNIFESP]
dc.contributor.authorValle, Eliana Maira Agostini [UNIFESP]
dc.coverageNew York
dc.date.accessioned2020-07-20T16:30:54Z
dc.date.available2020-07-20T16:30:54Z
dc.date.issued2018
dc.description.abstractThe pesticide carbendazim (MBC) has nitrogen and oxygen in their structure which can interact with metal ions. This work evaluated the interaction between copper (II) ions with the pesticide carbendazim. The results obtained by cyclic voltammetry (CV) in 0.4 mol L-1 Britton-Robinson (BR) buffer (pH 4.0), under glass carbon electrode (GCE) to the MBC, showed an oxidation peak at 1.02 V and a reduction peak at 0.78 V vs Ag/AgCl, with characteristics of a quasi-reversible process controlled by the diffusion of the species in solution. For the Cu2+ metal ions, two reduction peaks were observed at -0.26 and -0.11 V and an oxidation peak at 0.04 V vs Ag/AgCl, with characteristics of a quasi-reversible process, controlled by the diffusion of the species in solution. In the interaction between carbendazim and copper metal ion, the formation of an oxidation peak around 0.60 V vs Ag/AgCl and a reduction peak around 0.08 V was observed, in a 1:1 ratio (Cu2+:MBC) in solution, suggesting that a new compound was formed. Complex formation was confirmed by UV-Vis spectroscopy, where changes were observed in the MBC absorption band and Cu2+ d-d band, suggesting the formation of a MBC-Cu complex. Analyses with the soil samples showed that after 30 min of the presence of the carbendazim solution in the soil, the pesticide had around 80% of its initial concentration adsorbed. When carbendazim is in the presence of the Cu2+ ion, about 62% of the pesticide is adsorbed, indicating that complexation influences adsorption of the species in the soil studied.en
dc.description.affiliationUniv Fed Sao Paulo, Inst Ciencias Ambientais Quim & Farmaceut, Campus Diadema,Prof Arthur Riedel St 275, BR-09972270 Sao Paulo, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Inst Ciencias Ambientais Quim & Farmaceut, Campus Diadema,Prof Arthur Riedel St 275, BR-09972270 Sao Paulo, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipCNPq
dc.description.sponsorshipCAPES
dc.description.sponsorshipFAPESP
dc.format.extent1563-1570
dc.identifierhttp://dx.doi.org/10.1007/s10008-017-3746-5
dc.identifier.citationJournal Of Solid State Electrochemistry. New York, v. 22, n. 5, p. 1563-1570, 2018.
dc.identifier.doi10.1007/s10008-017-3746-5
dc.identifier.issn1432-8488
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/55586
dc.identifier.wosWOS:000430301800031
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofJournal Of Solid State Electrochemistry
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectCarbendazimen
dc.subjectCopper (II) complexesen
dc.subjectGlass carbon electrodeen
dc.subjectCyclic voltammetryen
dc.titleVoltammetric and spectroscopic studies of the interaction between copper (II) ions with the pesticide carbendazim and its effect in the soilen
dc.typeinfo:eu-repo/semantics/article
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