Preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment

Waste of electrical and electronic equipment is an interesting secondary resource of base and precious metals. Particularly the use of thiourea-leaching in acidic medium was proposed for noble metals recovery. In this work, a novel and easy-to-use electrochemical sensor was developed, aimed to test...

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Autores principales: Tashdjian, A., SánchezLoredo, M.G., González, G.A.
Formato: JOUR
Materias:
Impedance
Nanoparticles
Sensors
Silver
Thiourea
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10400397_v25_n9_p2124_Tashdjian
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_10400397_v25_n9_p2124_Tashdjian
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spelling todo:paper_10400397_v25_n9_p2124_Tashdjian2023-10-03T15:57:43Z Preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment Tashdjian, A. SánchezLoredo, M.G. González, G.A. Impedance Nanoparticles Sensors Silver Thiourea Waste of electrical and electronic equipment is an interesting secondary resource of base and precious metals. Particularly the use of thiourea-leaching in acidic medium was proposed for noble metals recovery. In this work, a novel and easy-to-use electrochemical sensor was developed, aimed to test thiourea from leaching solutions containing significant thiourea and copper amounts. The sensor was constructed using silver nanoparticles (AgNPs) deposited on screen-printed electrodes. Its performance was studied in a synthetic leaching solution; changes in the overall surface charge of AgNPs resulting in changes in the charge-transfer resistance for the copper ions were evaluated by electrochemical impedance spectroscopy. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Fil:González, G.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10400397_v25_n9_p2124_Tashdjian
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Impedance
Nanoparticles
Sensors
Silver
Thiourea
spellingShingle Impedance
Nanoparticles
Sensors
Silver
Thiourea
Tashdjian, A.
SánchezLoredo, M.G.
González, G.A.
Preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment
topic_facet Impedance
Nanoparticles
Sensors
Silver
Thiourea
description Waste of electrical and electronic equipment is an interesting secondary resource of base and precious metals. Particularly the use of thiourea-leaching in acidic medium was proposed for noble metals recovery. In this work, a novel and easy-to-use electrochemical sensor was developed, aimed to test thiourea from leaching solutions containing significant thiourea and copper amounts. The sensor was constructed using silver nanoparticles (AgNPs) deposited on screen-printed electrodes. Its performance was studied in a synthetic leaching solution; changes in the overall surface charge of AgNPs resulting in changes in the charge-transfer resistance for the copper ions were evaluated by electrochemical impedance spectroscopy. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
format JOUR
author Tashdjian, A.
SánchezLoredo, M.G.
González, G.A.
author_facet Tashdjian, A.
SánchezLoredo, M.G.
González, G.A.
author_sort Tashdjian, A.
title Preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment
title_short Preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment
title_full Preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment
title_fullStr Preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment
title_full_unstemmed Preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment
title_sort preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment
url http://hdl.handle.net/20.500.12110/paper_10400397_v25_n9_p2124_Tashdjian
work_keys_str_mv AT tashdjiana preparationofsilvernanoparticlesbasedsensorsfortheelectrochemicaldetectionofthioureainleachingsolutionsofwasteelectricalandelectronicequipment
AT sanchezloredomg preparationofsilvernanoparticlesbasedsensorsfortheelectrochemicaldetectionofthioureainleachingsolutionsofwasteelectricalandelectronicequipment
AT gonzalezga preparationofsilvernanoparticlesbasedsensorsfortheelectrochemicaldetectionofthioureainleachingsolutionsofwasteelectricalandelectronicequipment
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