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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...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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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. |
format | Online Article Text |
id | pubmed-9000778 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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