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Facile Preparation of Oxygen-Vacancy-Engineered MoO(x) Nanostructures for Photoreversible Switching Systems

Photochromic materials have attracted increasing attention. Here, we report a novel photo-reversible color switching system based on oxygen-vacancy-engineered MoO(x) nanostructures with water/N-methyl-2-pyrrolidone (NMP) as solvents. In this work, the system rapidly changed from colorless to blue un...

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Detalles Bibliográficos
Autores principales: Xu, Hao, Zhang, Liangjing, Wang, Aiwu, Hou, Juan, Guo, Xuhong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8706079/
https://www.ncbi.nlm.nih.gov/pubmed/34947540
http://dx.doi.org/10.3390/nano11123192
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author Xu, Hao
Zhang, Liangjing
Wang, Aiwu
Hou, Juan
Guo, Xuhong
author_facet Xu, Hao
Zhang, Liangjing
Wang, Aiwu
Hou, Juan
Guo, Xuhong
author_sort Xu, Hao
collection PubMed
description Photochromic materials have attracted increasing attention. Here, we report a novel photo-reversible color switching system based on oxygen-vacancy-engineered MoO(x) nanostructures with water/N-methyl-2-pyrrolidone (NMP) as solvents. In this work, the system rapidly changed from colorless to blue under UV irradiation (360–400 nm) and slowly recovered its colorless state under visible light irradiation. The obtained oxygen vacancy-engineered MoO(x) nanostructures exhibited good repeatability, chemical stability, and cycling stability. Upon UV light irradiation, H(+) was intercalated into layered MoO(x) nanostructures and the Mo(6+) concentration in the H(x)MoO(x) decreased, while the Mo(5+) concentration increased and increased oxygen vacancies changed the color to blue. Then, it recovered its original color slowly without UV light irradiation. What is more, the system was highly sensitive to UV light even on cloudy days. Compared with other reported photochromic materials, the system in this study has the advantage of facile preparation and provides new insights for the development of photochromic materials without dyes.
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spelling pubmed-87060792021-12-25 Facile Preparation of Oxygen-Vacancy-Engineered MoO(x) Nanostructures for Photoreversible Switching Systems Xu, Hao Zhang, Liangjing Wang, Aiwu Hou, Juan Guo, Xuhong Nanomaterials (Basel) Article Photochromic materials have attracted increasing attention. Here, we report a novel photo-reversible color switching system based on oxygen-vacancy-engineered MoO(x) nanostructures with water/N-methyl-2-pyrrolidone (NMP) as solvents. In this work, the system rapidly changed from colorless to blue under UV irradiation (360–400 nm) and slowly recovered its colorless state under visible light irradiation. The obtained oxygen vacancy-engineered MoO(x) nanostructures exhibited good repeatability, chemical stability, and cycling stability. Upon UV light irradiation, H(+) was intercalated into layered MoO(x) nanostructures and the Mo(6+) concentration in the H(x)MoO(x) decreased, while the Mo(5+) concentration increased and increased oxygen vacancies changed the color to blue. Then, it recovered its original color slowly without UV light irradiation. What is more, the system was highly sensitive to UV light even on cloudy days. Compared with other reported photochromic materials, the system in this study has the advantage of facile preparation and provides new insights for the development of photochromic materials without dyes. MDPI 2021-11-25 /pmc/articles/PMC8706079/ /pubmed/34947540 http://dx.doi.org/10.3390/nano11123192 Text en © 2021 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
Xu, Hao
Zhang, Liangjing
Wang, Aiwu
Hou, Juan
Guo, Xuhong
Facile Preparation of Oxygen-Vacancy-Engineered MoO(x) Nanostructures for Photoreversible Switching Systems
title Facile Preparation of Oxygen-Vacancy-Engineered MoO(x) Nanostructures for Photoreversible Switching Systems
title_full Facile Preparation of Oxygen-Vacancy-Engineered MoO(x) Nanostructures for Photoreversible Switching Systems
title_fullStr Facile Preparation of Oxygen-Vacancy-Engineered MoO(x) Nanostructures for Photoreversible Switching Systems
title_full_unstemmed Facile Preparation of Oxygen-Vacancy-Engineered MoO(x) Nanostructures for Photoreversible Switching Systems
title_short Facile Preparation of Oxygen-Vacancy-Engineered MoO(x) Nanostructures for Photoreversible Switching Systems
title_sort facile preparation of oxygen-vacancy-engineered moo(x) nanostructures for photoreversible switching systems
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8706079/
https://www.ncbi.nlm.nih.gov/pubmed/34947540
http://dx.doi.org/10.3390/nano11123192
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