Abstract:
A simple and reliable device is presented for the direct monitoring of thiourea in copper electrorefinery baths as a tool for reconditioning of industrial baths, and so reducing its environmental impact. For this purpose, a screen-printed graphite electrode is modified with silver nanoparticles (AgNPs) contained in a polyelectrolyte-surfactant matrix. The AgNPs are able to adsorb the thiourea, improving the sensitivity of the electrode toward this analyte, even in the presence of usual additives (Avitone® and glue). The system allows the determination of thiourea in a range of 1-10 mg/L. A coupled electrochemical and IR analysis is proposed to evaluate the involved mechanism. © 2016 Elsevier B.V. All rights reserved.
Registro:
Documento: |
Artículo
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Título: | Electrochemical sensor for thiourea focused on metallurgical applications of copper |
Autor: | Pedre, I.; Méndez DeLeo, L.P.; Sánchez-Loredo, M.G.; Battaglini, F.; González, G.A. |
Filiación: | INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, 1428, Argentina Instituto de Metalurgia, Facultad de Ingeniería, Universidad Autónoma de San Luis Potosí, Sierra Leona 550, Lomas 2aS.L.P. 78210, Mexico
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Palabras clave: | Copper electrorefining; Infrared spectroscopy; Silver nanoparticles; Square wave voltammetry; Thiourea; Voltammetry; Copper; Electrochemical sensors; Electrodes; Environmental impact; Graphite electrodes; Infrared spectroscopy; Metal nanoparticles; Nanoparticles; Polyelectrolytes; Silver; Voltammetry; Copper electrorefining; Direct monitoring; IR analysis; Metallurgical applications; Screen printed graphite electrodes; Silver nanoparticles; Silver nanoparticles (AgNps); Square wave voltammetry; Thioureas |
Año: | 2016
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Volumen: | 232
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Página de inicio: | 383
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Página de fin: | 389
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DOI: |
http://dx.doi.org/10.1016/j.snb.2016.03.154 |
Título revista: | Sensors and Actuators, B: Chemical
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Título revista abreviado: | Sens Actuators, B Chem
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ISSN: | 09254005
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CODEN: | SABCE
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09254005_v232_n_p383_Pedre |
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Citas:
---------- APA ----------
Pedre, I., Méndez DeLeo, L.P., Sánchez-Loredo, M.G., Battaglini, F. & González, G.A.
(2016)
. Electrochemical sensor for thiourea focused on metallurgical applications of copper. Sensors and Actuators, B: Chemical, 232, 383-389.
http://dx.doi.org/10.1016/j.snb.2016.03.154---------- CHICAGO ----------
Pedre, I., Méndez DeLeo, L.P., Sánchez-Loredo, M.G., Battaglini, F., González, G.A.
"Electrochemical sensor for thiourea focused on metallurgical applications of copper"
. Sensors and Actuators, B: Chemical 232
(2016) : 383-389.
http://dx.doi.org/10.1016/j.snb.2016.03.154---------- MLA ----------
Pedre, I., Méndez DeLeo, L.P., Sánchez-Loredo, M.G., Battaglini, F., González, G.A.
"Electrochemical sensor for thiourea focused on metallurgical applications of copper"
. Sensors and Actuators, B: Chemical, vol. 232, 2016, pp. 383-389.
http://dx.doi.org/10.1016/j.snb.2016.03.154---------- VANCOUVER ----------
Pedre, I., Méndez DeLeo, L.P., Sánchez-Loredo, M.G., Battaglini, F., González, G.A. Electrochemical sensor for thiourea focused on metallurgical applications of copper. Sens Actuators, B Chem. 2016;232:383-389.
http://dx.doi.org/10.1016/j.snb.2016.03.154