Feasible H2S Sensing in Water with a Printed Amperometric Microsensor

Concern over pollution has led to an increase in wastewater treatment systems, which require constant monitorization. In particular, hydrogen sulfide (H2S) is a toxic gas, soluble in water, commonly found in industrial and urban effluents. For proper removal control, fast, durable, and easy-to-handl...

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Detalles Bibliográficos
Autores: Paré, Franc, Castro, Rebeca, Gabriel, David, Guimerà, Xavier, Gabriel, Gemma, Baeza, Mireia
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/351435
Acceso en línea:http://hdl.handle.net/10261/351435
https://api.elsevier.com/content/abstract/scopus_id/85152204829
Access Level:acceso abierto
Palabra clave:amperometric sensor | direct ink writing | hydrogen sulfide | inkjet-printed electrodes | single-walled carbon nanotubes
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spelling Feasible H2S Sensing in Water with a Printed Amperometric MicrosensorParé, FrancCastro, RebecaGabriel, DavidGuimerà, XavierGabriel, GemmaBaeza, Mireiaamperometric sensor | direct ink writing | hydrogen sulfide | inkjet-printed electrodes | single-walled carbon nanotubesConcern over pollution has led to an increase in wastewater treatment systems, which require constant monitorization. In particular, hydrogen sulfide (H2S) is a toxic gas, soluble in water, commonly found in industrial and urban effluents. For proper removal control, fast, durable, and easy-to-handle analytical systems, capable of on-line measurements, such as electrochemical sensors, are required. Moreover, for a proper monitoring of said treatment processes, analysis must be carried out through all steps, thus needing for an economic and highly reproducible method of sensor fabrication. Digital printing have risen in the last few years as technologies capable of mass producing miniaturized electronical devices, allowing for the fabrication of amperometric sensors. Here, a 2 mm2 graphite (Gr) electrode, modified with different dispersions of single-walled carbon nanotubes (SWCNTs), poly(vinyl alcohol), poly(diallyl dimethylammonium chloride), and polylactic acid (PLA), is presented as a H2S sensor. SWCNTs allow for lower oxidation potentials, higher sensitivity, and a reduced rate of sulfur poisoning, while polymer dispersion of PLA increases mechanical stability and as a result, electrochemical performance. This microsensor presents an optimal pH working range between 7.5 and 11.0, a limit of detection of 4.3 μM, and the capacity to operate on complex matrices for H2S contamination detection.Peer reviewedACS PublicationsEuropean CommissionMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)Universidad Autónoma de Barcelona0000-0003-2140-62990000-0002-2240-6410Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/351435https://api.elsevier.com/content/abstract/scopus_id/85152204829reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-126253OB-C21ACS ES&T waterhttps://pubs.acs.org/doi/full/10.1021/acsestwater.2c00589Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3514352026-05-22T06:33:51Z
dc.title.none.fl_str_mv Feasible H2S Sensing in Water with a Printed Amperometric Microsensor
title Feasible H2S Sensing in Water with a Printed Amperometric Microsensor
spellingShingle Feasible H2S Sensing in Water with a Printed Amperometric Microsensor
Paré, Franc
amperometric sensor | direct ink writing | hydrogen sulfide | inkjet-printed electrodes | single-walled carbon nanotubes
title_short Feasible H2S Sensing in Water with a Printed Amperometric Microsensor
title_full Feasible H2S Sensing in Water with a Printed Amperometric Microsensor
title_fullStr Feasible H2S Sensing in Water with a Printed Amperometric Microsensor
title_full_unstemmed Feasible H2S Sensing in Water with a Printed Amperometric Microsensor
title_sort Feasible H2S Sensing in Water with a Printed Amperometric Microsensor
dc.creator.none.fl_str_mv Paré, Franc
Castro, Rebeca
Gabriel, David
Guimerà, Xavier
Gabriel, Gemma
Baeza, Mireia
author Paré, Franc
author_facet Paré, Franc
Castro, Rebeca
Gabriel, David
Guimerà, Xavier
Gabriel, Gemma
Baeza, Mireia
author_role author
author2 Castro, Rebeca
Gabriel, David
Guimerà, Xavier
Gabriel, Gemma
Baeza, Mireia
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
Universidad Autónoma de Barcelona
0000-0003-2140-6299
0000-0002-2240-6410
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv amperometric sensor | direct ink writing | hydrogen sulfide | inkjet-printed electrodes | single-walled carbon nanotubes
topic amperometric sensor | direct ink writing | hydrogen sulfide | inkjet-printed electrodes | single-walled carbon nanotubes
description Concern over pollution has led to an increase in wastewater treatment systems, which require constant monitorization. In particular, hydrogen sulfide (H2S) is a toxic gas, soluble in water, commonly found in industrial and urban effluents. For proper removal control, fast, durable, and easy-to-handle analytical systems, capable of on-line measurements, such as electrochemical sensors, are required. Moreover, for a proper monitoring of said treatment processes, analysis must be carried out through all steps, thus needing for an economic and highly reproducible method of sensor fabrication. Digital printing have risen in the last few years as technologies capable of mass producing miniaturized electronical devices, allowing for the fabrication of amperometric sensors. Here, a 2 mm2 graphite (Gr) electrode, modified with different dispersions of single-walled carbon nanotubes (SWCNTs), poly(vinyl alcohol), poly(diallyl dimethylammonium chloride), and polylactic acid (PLA), is presented as a H2S sensor. SWCNTs allow for lower oxidation potentials, higher sensitivity, and a reduced rate of sulfur poisoning, while polymer dispersion of PLA increases mechanical stability and as a result, electrochemical performance. This microsensor presents an optimal pH working range between 7.5 and 11.0, a limit of detection of 4.3 μM, and the capacity to operate on complex matrices for H2S contamination detection.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/351435
https://api.elsevier.com/content/abstract/scopus_id/85152204829
url http://hdl.handle.net/10261/351435
https://api.elsevier.com/content/abstract/scopus_id/85152204829
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-126253OB-C21
ACS ES&T water
https://pubs.acs.org/doi/full/10.1021/acsestwater.2c00589
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv ACS Publications
publisher.none.fl_str_mv ACS Publications
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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