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Eco-Friendly Disposable WS(2) Paper Sensor for Sub-ppm NO(2) Detection at Room Temperature

We developed inexpensive and disposable gas sensors with a low environmental footprint. This approach is based on a biodegradable substrate, paper, and features safe and nontoxic electronic materials. We show that abrasion-induced deposited WS(2) nanoplatelets on paper can be employed as a successfu...

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Autores principales: Matatagui, Daniel, Cruz, Carlos, Carrascoso, Felix, Al-Enizi, Abdullah M., Nafady, Ayman, Castellanos-Gomez, Andres, Horrillo, María del Carmen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9000778/
https://www.ncbi.nlm.nih.gov/pubmed/35407331
http://dx.doi.org/10.3390/nano12071213
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author Matatagui, Daniel
Cruz, Carlos
Carrascoso, Felix
Al-Enizi, Abdullah M.
Nafady, Ayman
Castellanos-Gomez, Andres
Horrillo, María del Carmen
author_facet Matatagui, Daniel
Cruz, Carlos
Carrascoso, Felix
Al-Enizi, Abdullah M.
Nafady, Ayman
Castellanos-Gomez, Andres
Horrillo, María del Carmen
author_sort Matatagui, Daniel
collection PubMed
description We developed inexpensive and disposable gas sensors with a low environmental footprint. This approach is based on a biodegradable substrate, paper, and features safe and nontoxic electronic materials. We show that abrasion-induced deposited WS(2) nanoplatelets on paper can be employed as a successful sensing layer to develop high-sensitivity and selective sensors, which operate even at room temperature. Its performance is investigated, at room temperature, against NO(2) exposure, finding that the electrical resistance of the device drops dramatically upon NO(2) adsorption, decreasing by ~42% (~31% half a year later) for 0.8 ppm concentration, and establishing a detection limit around~2 ppb (~3 ppb half a year later). The sensor is highly selective towards NO(2) gas with respect to the interferents NH(3) and CO, whose responses were only 1.8% (obtained for 30 ppm) and 1.5% (obtained for 8 ppm), respectively. Interestingly, an improved response of the developed sensor under humid conditions was observed (tested for 25% relative humidity at 23 °C). The high-performance, in conjunction with its small dimensions, low cost, operation at room temperature, and the possibility of using it as a portable system, makes this sensor a promising candidate for continuous monitoring of NO(2) on-site.
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spelling pubmed-90007782022-04-12 Eco-Friendly Disposable WS(2) Paper Sensor for Sub-ppm NO(2) Detection at Room Temperature Matatagui, Daniel Cruz, Carlos Carrascoso, Felix Al-Enizi, Abdullah M. Nafady, Ayman Castellanos-Gomez, Andres Horrillo, María del Carmen Nanomaterials (Basel) Article We developed inexpensive and disposable gas sensors with a low environmental footprint. This approach is based on a biodegradable substrate, paper, and features safe and nontoxic electronic materials. We show that abrasion-induced deposited WS(2) nanoplatelets on paper can be employed as a successful sensing layer to develop high-sensitivity and selective sensors, which operate even at room temperature. Its performance is investigated, at room temperature, against NO(2) exposure, finding that the electrical resistance of the device drops dramatically upon NO(2) adsorption, decreasing by ~42% (~31% half a year later) for 0.8 ppm concentration, and establishing a detection limit around~2 ppb (~3 ppb half a year later). The sensor is highly selective towards NO(2) gas with respect to the interferents NH(3) and CO, whose responses were only 1.8% (obtained for 30 ppm) and 1.5% (obtained for 8 ppm), respectively. Interestingly, an improved response of the developed sensor under humid conditions was observed (tested for 25% relative humidity at 23 °C). The high-performance, in conjunction with its small dimensions, low cost, operation at room temperature, and the possibility of using it as a portable system, makes this sensor a promising candidate for continuous monitoring of NO(2) on-site. MDPI 2022-04-05 /pmc/articles/PMC9000778/ /pubmed/35407331 http://dx.doi.org/10.3390/nano12071213 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Matatagui, Daniel
Cruz, Carlos
Carrascoso, Felix
Al-Enizi, Abdullah M.
Nafady, Ayman
Castellanos-Gomez, Andres
Horrillo, María del Carmen
Eco-Friendly Disposable WS(2) Paper Sensor for Sub-ppm NO(2) Detection at Room Temperature
title Eco-Friendly Disposable WS(2) Paper Sensor for Sub-ppm NO(2) Detection at Room Temperature
title_full Eco-Friendly Disposable WS(2) Paper Sensor for Sub-ppm NO(2) Detection at Room Temperature
title_fullStr Eco-Friendly Disposable WS(2) Paper Sensor for Sub-ppm NO(2) Detection at Room Temperature
title_full_unstemmed Eco-Friendly Disposable WS(2) Paper Sensor for Sub-ppm NO(2) Detection at Room Temperature
title_short Eco-Friendly Disposable WS(2) Paper Sensor for Sub-ppm NO(2) Detection at Room Temperature
title_sort eco-friendly disposable ws(2) paper sensor for sub-ppm no(2) detection at room temperature
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9000778/
https://www.ncbi.nlm.nih.gov/pubmed/35407331
http://dx.doi.org/10.3390/nano12071213
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