Simple and highly sensitive 2-hydroxy-1,4-naphthoquinone/glassy carbon sensor for the electrochemical detection of [Ni(CN)4]2− in metallurgical industry wastewater

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dc.contributor.authorCardenas-Riojas, Andy A.
dc.contributor.authorMuedas-Taipe, Golfer
dc.contributor.authorLa Rosa-Toro, Adolfo
dc.contributor.authorSotomayor, Maria D. P. T. [UNESP]
dc.contributor.authorPonce-Vargas, Miguel
dc.contributor.authorBaena-Moncada, Angélica M.
dc.contributor.institutionFacultad de Ciencias de la Universidad Nacional de Ingeniería
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionToxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM)
dc.contributor.institutionMoulin de la Housse
dc.date.accessioned2022-04-29T08:46:47Z
dc.date.available2022-04-29T08:46:47Z
dc.date.issued2022-01-01
dc.description.abstractThe pollution generated by the metallurgical industry effluents represents a serious issue for human health and the environment where the presence of cyanide species is particularly dangerous even at low concentration. In this context, we have developed an electrochemical sensor based on a glassy carbon (GC) electrode modified with 2-hydroxy-1,4-naphthoquinone (HNFQ) for the detection of the [Ni(CN)4](aq)2- complex ion from galvanic wastewater. It was characterized by physicochemical techniques such as Raman spectroscopy, electrochemical spectroscopy impedance, and UV–Visible spectroscopy. The electrochemical detection of the complex ion [Ni(CN)4](aq)2- was carried out by the square-wave voltammetry electrochemical technique. The GC/HNFQ electrochemical sensor features a wide linear range of 1.28 × 10–5–1.63 × 10–3 mol L−1 with a determination coefficient R2 of 0.9993, a limit of detection (LOD) of 3.31 ± 2.21 µmol L−1, and a limit of quantification (LOQ) of 10.93 ± 7.31 µmol L−1. Moreover, the proposed sensor displays excellent selectivity to the interfering ions (K +, Na +, Cl -, NO3-, SO42-, and HCO3-). Finally, in order to investigate the molecular interplay between the involved species at the electrode-solution interface, a computational study in the framework of DFT has been conducted, which suggests a parallel orientation of a formed Ni(II)-bis(2-hydroxy-1,4-naphthoquinonate) complex and a graphitic domain of the glassy carbon surface. Graphical abstract: [Figure not available: see fulltext.]en
dc.description.affiliationLaboratorio de Investigación de Electroquímica Aplicada Facultad de Ciencias de la Universidad Nacional de Ingeniería, Av. Túpac Amaru 210, Lima
dc.description.affiliationInstitute of Chemistry State University of São Paulo (UNESP), SP
dc.description.affiliationNational Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), SP
dc.description.affiliationInstitut de Chimie Moléculaire de Reims UMR CNRS 7312 University of Reims Champagne-Ardenne Moulin de la Housse
dc.description.affiliationUnespInstitute of Chemistry State University of São Paulo (UNESP), SP
dc.identifierhttp://dx.doi.org/10.1007/s10800-022-01691-0
dc.identifier.citationJournal of Applied Electrochemistry.
dc.identifier.doi10.1007/s10800-022-01691-0
dc.identifier.issn1572-8838
dc.identifier.issn0021-891X
dc.identifier.scopus2-s2.0-85127536442
dc.identifier.urihttp://hdl.handle.net/11449/231647
dc.language.isoeng
dc.relation.ispartofJournal of Applied Electrochemistry
dc.sourceScopus
dc.subject2-Hydroxy-1,4-naphthoquinone
dc.subjectAdsorption
dc.subjectDFT
dc.subjectElectrochemical sensor
dc.subjectGlassy carbon
dc.subject[Ni(CN)4]2-aq
dc.titleSimple and highly sensitive 2-hydroxy-1,4-naphthoquinone/glassy carbon sensor for the electrochemical detection of [Ni(CN)4]2− in metallurgical industry wastewateren
dc.typeArtigo
unesp.author.orcid0000-0002-2896-4392[6]

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