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Hydrothermal Synthesis of Hierarchical SnO(2) Nanostructures for Improved Formaldehyde Gas Sensing

The indoor environment of buildings affects people’s daily life. Indoor harmful gases include volatile organic gas and greenhouse gas. Therefore, the detection of harmful gas by gas sensors is a key method for developing green buildings. The reasonable design of SnO(2)-sensing materials with excelle...

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Detalles Bibliográficos
Autores principales: Ren, Pengyu, Qi, Lingling, You, Kairui, Shi, Qingwei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8781589/
https://www.ncbi.nlm.nih.gov/pubmed/35055246
http://dx.doi.org/10.3390/nano12020228
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author Ren, Pengyu
Qi, Lingling
You, Kairui
Shi, Qingwei
author_facet Ren, Pengyu
Qi, Lingling
You, Kairui
Shi, Qingwei
author_sort Ren, Pengyu
collection PubMed
description The indoor environment of buildings affects people’s daily life. Indoor harmful gases include volatile organic gas and greenhouse gas. Therefore, the detection of harmful gas by gas sensors is a key method for developing green buildings. The reasonable design of SnO(2)-sensing materials with excellent structures is an ideal choice for gas sensors. In this study, three types of hierarchical SnO(2) microspheres assembled with one-dimensional nanorods, including urchin-like microspheres (SN-1), flower-like microspheres (SN-2), and hydrangea-like microspheres (SN-3), are prepared by a simple hydrothermal method and further applied as gas-sensing materials for an indoor formaldehyde (HCHO) gas-sensing test. The SN-1 sample-based gas sensor demonstrates improved HCHO gas-sensing performance, especially demonstrating greater sensor responses and faster response/recovery speeds than SN-2- and SN-3-based gas sensors. The improved HCHO gas-sensing properties could be mainly attributed to the structural difference of smaller nanorods. These results further indicate the uniqueness of the structure of the SN-1 sample and its suitability as HCHO- sensing material.
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spelling pubmed-87815892022-01-22 Hydrothermal Synthesis of Hierarchical SnO(2) Nanostructures for Improved Formaldehyde Gas Sensing Ren, Pengyu Qi, Lingling You, Kairui Shi, Qingwei Nanomaterials (Basel) Article The indoor environment of buildings affects people’s daily life. Indoor harmful gases include volatile organic gas and greenhouse gas. Therefore, the detection of harmful gas by gas sensors is a key method for developing green buildings. The reasonable design of SnO(2)-sensing materials with excellent structures is an ideal choice for gas sensors. In this study, three types of hierarchical SnO(2) microspheres assembled with one-dimensional nanorods, including urchin-like microspheres (SN-1), flower-like microspheres (SN-2), and hydrangea-like microspheres (SN-3), are prepared by a simple hydrothermal method and further applied as gas-sensing materials for an indoor formaldehyde (HCHO) gas-sensing test. The SN-1 sample-based gas sensor demonstrates improved HCHO gas-sensing performance, especially demonstrating greater sensor responses and faster response/recovery speeds than SN-2- and SN-3-based gas sensors. The improved HCHO gas-sensing properties could be mainly attributed to the structural difference of smaller nanorods. These results further indicate the uniqueness of the structure of the SN-1 sample and its suitability as HCHO- sensing material. MDPI 2022-01-11 /pmc/articles/PMC8781589/ /pubmed/35055246 http://dx.doi.org/10.3390/nano12020228 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
Ren, Pengyu
Qi, Lingling
You, Kairui
Shi, Qingwei
Hydrothermal Synthesis of Hierarchical SnO(2) Nanostructures for Improved Formaldehyde Gas Sensing
title Hydrothermal Synthesis of Hierarchical SnO(2) Nanostructures for Improved Formaldehyde Gas Sensing
title_full Hydrothermal Synthesis of Hierarchical SnO(2) Nanostructures for Improved Formaldehyde Gas Sensing
title_fullStr Hydrothermal Synthesis of Hierarchical SnO(2) Nanostructures for Improved Formaldehyde Gas Sensing
title_full_unstemmed Hydrothermal Synthesis of Hierarchical SnO(2) Nanostructures for Improved Formaldehyde Gas Sensing
title_short Hydrothermal Synthesis of Hierarchical SnO(2) Nanostructures for Improved Formaldehyde Gas Sensing
title_sort hydrothermal synthesis of hierarchical sno(2) nanostructures for improved formaldehyde gas sensing
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8781589/
https://www.ncbi.nlm.nih.gov/pubmed/35055246
http://dx.doi.org/10.3390/nano12020228
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