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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Detalles Bibliográficos
Autor principal:	Gonzalez, Graciela Alicia
Publicado:	2013
Materias:	Impedance Nanoparticles Sensors Silver Thiourea
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10400397_v25_n9_p2124_Tashdjian 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	paper:paper_10400397_v25_n9_p2124_Tashdjian
record_format	dspace
spelling	paper:paper_10400397_v25_n9_p2124_Tashdjian2023-06-08T16:00:40Z Preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment Gonzalez, Graciela Alicia 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. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10400397_v25_n9_p2124_Tashdjian 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 Gonzalez, Graciela Alicia 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.
author	Gonzalez, Graciela Alicia
author_facet	Gonzalez, Graciela Alicia
author_sort	Gonzalez, Graciela Alicia
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
publishDate	2013
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10400397_v25_n9_p2124_Tashdjian http://hdl.handle.net/20.500.12110/paper_10400397_v25_n9_p2124_Tashdjian
work_keys_str_mv	AT gonzalezgracielaalicia preparationofsilvernanoparticlesbasedsensorsfortheelectrochemicaldetectionofthioureainleachingsolutionsofwasteelectricalandelectronicequipment
_version_	1768543714096971776

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

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