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Nano-Structuration of WO(3) Nanoleaves by Localized Hydrolysis of an Organometallic Zn Precursor: Application to Photocatalytic NO(2) Abatement
WO(3) is a known photocatalytic metal oxide frequently studied for its depollution properties. However, it suffers from a high recombination rate of the photogenerated electron/holes pair that is detrimental to its performance. In this paper, we present a new chemical method to decorate WO(3) nanole...
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/PMC9786007/ https://www.ncbi.nlm.nih.gov/pubmed/36558213 http://dx.doi.org/10.3390/nano12244360 |
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author | Castello Lux, Kevin Fajerwerg, Katia Hot, Julie Ringot, Erick Bertron, Alexandra Collière, Vincent Kahn, Myrtil L. Loridant, Stéphane Coppel, Yannick Fau, Pierre |
author_facet | Castello Lux, Kevin Fajerwerg, Katia Hot, Julie Ringot, Erick Bertron, Alexandra Collière, Vincent Kahn, Myrtil L. Loridant, Stéphane Coppel, Yannick Fau, Pierre |
author_sort | Castello Lux, Kevin |
collection | PubMed |
description | WO(3) is a known photocatalytic metal oxide frequently studied for its depollution properties. However, it suffers from a high recombination rate of the photogenerated electron/holes pair that is detrimental to its performance. In this paper, we present a new chemical method to decorate WO(3) nanoleaves (NLs) with a complementary metal oxide (ZnWO(4)) in order to improve the photocatalytic performance of the composite material for the abatement of 400 ppb NO(2) under mild UV exposure. Our strategy was to synthesize WO(3)·2H(2)O nanoleaves, then, to expose them, in water-free organic solution, to an organometallic precursor of Zn(Cy)(2). A structural water molecule from WO(3)·2H(2)O spontaneously decomposes Zn(Cy)(2) and induces the formation of the ZnO@WO(3)·H(2)O nanocomposite. The material was characterized by electronic microscopy (SEM, TEM), TGA, XRD, Raman and solid NMR spectroscopies. A simple thermal treatment under air at 500 °C affords the ZnWO(4)@WO(3) nanocomposite. The resulting material, additionally decorated with 1% wt. Au, presents a remarkable increase (+166%) in the photocatalytic abatement of NO(2) under UV compared to the pristine WO(3) NLs. This synthesis method paves the way to the versatile preparation of a wide range of MOx@WO(3) nanocomposites (MOx = metal oxide). |
format | Online Article Text |
id | pubmed-9786007 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-97860072022-12-24 Nano-Structuration of WO(3) Nanoleaves by Localized Hydrolysis of an Organometallic Zn Precursor: Application to Photocatalytic NO(2) Abatement Castello Lux, Kevin Fajerwerg, Katia Hot, Julie Ringot, Erick Bertron, Alexandra Collière, Vincent Kahn, Myrtil L. Loridant, Stéphane Coppel, Yannick Fau, Pierre Nanomaterials (Basel) Article WO(3) is a known photocatalytic metal oxide frequently studied for its depollution properties. However, it suffers from a high recombination rate of the photogenerated electron/holes pair that is detrimental to its performance. In this paper, we present a new chemical method to decorate WO(3) nanoleaves (NLs) with a complementary metal oxide (ZnWO(4)) in order to improve the photocatalytic performance of the composite material for the abatement of 400 ppb NO(2) under mild UV exposure. Our strategy was to synthesize WO(3)·2H(2)O nanoleaves, then, to expose them, in water-free organic solution, to an organometallic precursor of Zn(Cy)(2). A structural water molecule from WO(3)·2H(2)O spontaneously decomposes Zn(Cy)(2) and induces the formation of the ZnO@WO(3)·H(2)O nanocomposite. The material was characterized by electronic microscopy (SEM, TEM), TGA, XRD, Raman and solid NMR spectroscopies. A simple thermal treatment under air at 500 °C affords the ZnWO(4)@WO(3) nanocomposite. The resulting material, additionally decorated with 1% wt. Au, presents a remarkable increase (+166%) in the photocatalytic abatement of NO(2) under UV compared to the pristine WO(3) NLs. This synthesis method paves the way to the versatile preparation of a wide range of MOx@WO(3) nanocomposites (MOx = metal oxide). MDPI 2022-12-07 /pmc/articles/PMC9786007/ /pubmed/36558213 http://dx.doi.org/10.3390/nano12244360 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 Castello Lux, Kevin Fajerwerg, Katia Hot, Julie Ringot, Erick Bertron, Alexandra Collière, Vincent Kahn, Myrtil L. Loridant, Stéphane Coppel, Yannick Fau, Pierre Nano-Structuration of WO(3) Nanoleaves by Localized Hydrolysis of an Organometallic Zn Precursor: Application to Photocatalytic NO(2) Abatement |
title | Nano-Structuration of WO(3) Nanoleaves by Localized Hydrolysis of an Organometallic Zn Precursor: Application to Photocatalytic NO(2) Abatement |
title_full | Nano-Structuration of WO(3) Nanoleaves by Localized Hydrolysis of an Organometallic Zn Precursor: Application to Photocatalytic NO(2) Abatement |
title_fullStr | Nano-Structuration of WO(3) Nanoleaves by Localized Hydrolysis of an Organometallic Zn Precursor: Application to Photocatalytic NO(2) Abatement |
title_full_unstemmed | Nano-Structuration of WO(3) Nanoleaves by Localized Hydrolysis of an Organometallic Zn Precursor: Application to Photocatalytic NO(2) Abatement |
title_short | Nano-Structuration of WO(3) Nanoleaves by Localized Hydrolysis of an Organometallic Zn Precursor: Application to Photocatalytic NO(2) Abatement |
title_sort | nano-structuration of wo(3) nanoleaves by localized hydrolysis of an organometallic zn precursor: application to photocatalytic no(2) abatement |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9786007/ https://www.ncbi.nlm.nih.gov/pubmed/36558213 http://dx.doi.org/10.3390/nano12244360 |
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