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Electrochemical sensor based on 1,8-dihydroxyanthraquinone adsorbed on a glassy carbon electrode for the detection of [Cu(CN)3](aq)2− in alkaline cyanide copper plating baths waste

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dc.contributor.author Cardenas-Riojas, Andy A. es_PE
dc.contributor.author Cornejo-Herrera, Anthony Felix es_PE
dc.contributor.author Muedas-Taipe, Golfer es_PE
dc.contributor.author La Rosa-Toro, Adolfo es_PE
dc.contributor.author Sotomayor, Maria D.P.T. es_PE
dc.contributor.author Ponce-Vargas, Miguel es_PE
dc.contributor.author Baena-Moncada, Angélica M. es_PE
dc.date.accessioned 2024-05-30T23:13:38Z
dc.date.available 2024-05-30T23:13:38Z
dc.date.issued 2021
dc.description.abstract This work reports the fabrication of a novel electrochemical sensor for the detection of the complex ion [Cu(CN)3](aq)2−, one of the main components of the effluents from cyanide alkaline copper plating baths. This sensor was prepared by using a surface modified glassy carbon (GC) electrode with 1,8-dihydroxyantroquinone (1,8-DHAQ). It was characterized by electrochemical impedance, Raman spectroscopy and UV–Visible spectroscopy. The electrochemical detection of [Cu(CN)3](aq)2−was performed by differential pulse voltammetry. The 1,8-DHAQ/GC electrochemical sensor exhibits good reproducibility and a linear range of 5.50 × 10−7–3.81 × 10−6 mol L−1, with a detection limit (LOD) of 1.20 × 10−6 mol L−1, quantification limit (LOQ) of 3.97 × 10−6 mol L−1, and robustness to interfering Cl−, NO3−, SO42− y CO32− ions. Finally, a DFT approach suggests an almost parallel orientation of the bis(1,8-dihydroxyanthraquinone) over a graphene domain of the glassy carbon surface, as well as the noncovalent nature of the interactions involved. © 2020
dc.description.sponsorship Fondo Nacional de Desarrollo Científico y Tecnológico - Fondecyt
dc.identifier.doi https://doi.org/10.1016/j.jelechem.2020.114909
dc.identifier.scopus 2-s2.0-85097722806
dc.identifier.uri https://hdl.handle.net/20.500.12390/2413
dc.language.iso eng
dc.publisher Elsevier B.V.
dc.relation.ispartof Journal of Electroanalytical Chemistry
dc.rights info:eu-repo/semantics/openAccess
dc.subject Glassy carbon
dc.subject Adsorption es_PE
dc.subject Electrochemical sensor es_PE
dc.subject.ocde http://purl.org/pe-repo/ocde/ford#1.04.0
dc.title Electrochemical sensor based on 1,8-dihydroxyanthraquinone adsorbed on a glassy carbon electrode for the detection of [Cu(CN)3](aq)2− in alkaline cyanide copper plating baths waste
dc.type info:eu-repo/semantics/article
dspace.entity.type Publication
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