Interferometric optical fiber sensor with a polyoxometalate-doped xerogel for the detection of ammonia and VOCs

This study presents the development and evaluation of an interferometric optical fiber sensor (I-OFS) based on a Single Mode Fiber-No Core Fiber-Single Mode Fiber (SMF-NCF-SMF) structure and functionalized with a silica xerogel doped with a titanium (IV)-containing polyoxomolybdate (GeMoTi). The sen...

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Detalhes bibliográficos
Autores: Hernández López, Claudia, Rosales Reina, María Beatriz, Reinoso, Santiago, Garrido Segovia, Julián José, López Torres, Diego, Elosúa Aguado, César
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Recursos:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/56071
Acesso em linha:https://hdl.handle.net/2454/56071
Access Level:acceso abierto
Palavra-chave:Ammonia
Interferometric structure
Polyoxometalate (POM)
Volatile Organic Compounds (VOCs)
Xerogel
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spelling Interferometric optical fiber sensor with a polyoxometalate-doped xerogel for the detection of ammonia and VOCsHernández López, ClaudiaRosales Reina, María BeatrizReinoso, SantiagoGarrido Segovia, Julián JoséLópez Torres, DiegoElosúa Aguado, CésarAmmoniaInterferometric structurePolyoxometalate (POM)Volatile Organic Compounds (VOCs)XerogelThis study presents the development and evaluation of an interferometric optical fiber sensor (I-OFS) based on a Single Mode Fiber-No Core Fiber-Single Mode Fiber (SMF-NCF-SMF) structure and functionalized with a silica xerogel doped with a titanium (IV)-containing polyoxomolybdate (GeMoTi). The sensor behavior was tested under saturated atmospheres of ammonia, water, and various volatile organic compounds (VOCs), including methylamine, ethanol, acetone, and toluene. The response was characterized in terms of wavelength shifts, which are highlightable for ammonia and methylamine due to their strong chemical interactions with the doped xerogel. The response and recovery times were evaluated for each analyte, pointing out ammonia as the compound with the fastest response time and most stable detection performance, while methylamine exhibited longer recovery due to stronger binding. Calibrations with ammonia concentrations from 56 to 313 ppmm demonstrated linearity (R² = 0.98), low hysteresis (6%) and repeatability. These results support the hypothesis of using GeMoTi-doped xerogels to enhance the response of I-OFSs toward ammonia and related amines.This work was funded by the Universidad Pública de Navarra, the Spanish Ministerio de Ciencia e Innovación and the Agencia Estatal de Investigación through the projects PJUPNA2024-11705, PID2022-137437OB-I00 and PID2020-113558RB-C42. C. Hernández-López thanks Universidad Pública de Navarra for a PhD grant.IEEEIngeniería Eléctrica, Electrónica y de ComunicaciónCienciasIngeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio IngeniaritzaZientziakInstitute for Advanced Materials and Mathematics - INAMAT2Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, PJUPNA2024-117052025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2454/56071reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarrainstname:Universidad Pública de NavarraInglésinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-137437OB-I00info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113558RB-C42This work is licensed under a Creative Commons Attribution 4.0 License.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/560712026-06-17T12:41:47Z
dc.title.none.fl_str_mv Interferometric optical fiber sensor with a polyoxometalate-doped xerogel for the detection of ammonia and VOCs
title Interferometric optical fiber sensor with a polyoxometalate-doped xerogel for the detection of ammonia and VOCs
spellingShingle Interferometric optical fiber sensor with a polyoxometalate-doped xerogel for the detection of ammonia and VOCs
Hernández López, Claudia
Ammonia
Interferometric structure
Polyoxometalate (POM)
Volatile Organic Compounds (VOCs)
Xerogel
title_short Interferometric optical fiber sensor with a polyoxometalate-doped xerogel for the detection of ammonia and VOCs
title_full Interferometric optical fiber sensor with a polyoxometalate-doped xerogel for the detection of ammonia and VOCs
title_fullStr Interferometric optical fiber sensor with a polyoxometalate-doped xerogel for the detection of ammonia and VOCs
title_full_unstemmed Interferometric optical fiber sensor with a polyoxometalate-doped xerogel for the detection of ammonia and VOCs
title_sort Interferometric optical fiber sensor with a polyoxometalate-doped xerogel for the detection of ammonia and VOCs
dc.creator.none.fl_str_mv Hernández López, Claudia
Rosales Reina, María Beatriz
Reinoso, Santiago
Garrido Segovia, Julián José
López Torres, Diego
Elosúa Aguado, César
author Hernández López, Claudia
author_facet Hernández López, Claudia
Rosales Reina, María Beatriz
Reinoso, Santiago
Garrido Segovia, Julián José
López Torres, Diego
Elosúa Aguado, César
author_role author
author2 Rosales Reina, María Beatriz
Reinoso, Santiago
Garrido Segovia, Julián José
López Torres, Diego
Elosúa Aguado, César
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ingeniería Eléctrica, Electrónica y de Comunicación
Ciencias
Ingeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio Ingeniaritza
Zientziak
Institute for Advanced Materials and Mathematics - INAMAT2
Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, PJUPNA2024-11705
dc.subject.none.fl_str_mv Ammonia
Interferometric structure
Polyoxometalate (POM)
Volatile Organic Compounds (VOCs)
Xerogel
topic Ammonia
Interferometric structure
Polyoxometalate (POM)
Volatile Organic Compounds (VOCs)
Xerogel
description This study presents the development and evaluation of an interferometric optical fiber sensor (I-OFS) based on a Single Mode Fiber-No Core Fiber-Single Mode Fiber (SMF-NCF-SMF) structure and functionalized with a silica xerogel doped with a titanium (IV)-containing polyoxomolybdate (GeMoTi). The sensor behavior was tested under saturated atmospheres of ammonia, water, and various volatile organic compounds (VOCs), including methylamine, ethanol, acetone, and toluene. The response was characterized in terms of wavelength shifts, which are highlightable for ammonia and methylamine due to their strong chemical interactions with the doped xerogel. The response and recovery times were evaluated for each analyte, pointing out ammonia as the compound with the fastest response time and most stable detection performance, while methylamine exhibited longer recovery due to stronger binding. Calibrations with ammonia concentrations from 56 to 313 ppmm demonstrated linearity (R² = 0.98), low hysteresis (6%) and repeatability. These results support the hypothesis of using GeMoTi-doped xerogels to enhance the response of I-OFSs toward ammonia and related amines.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2454/56071
url https://hdl.handle.net/2454/56071
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-137437OB-I00
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113558RB-C42
dc.rights.none.fl_str_mv This work is licensed under a Creative Commons Attribution 4.0 License.
https://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv This work is licensed under a Creative Commons Attribution 4.0 License.
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IEEE
publisher.none.fl_str_mv IEEE
dc.source.none.fl_str_mv reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
instname:Universidad Pública de Navarra
instname_str Universidad Pública de Navarra
reponame_str Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
collection Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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