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Electrospinning preparation and near-infrared absorption properties of a silica/cesium tungsten bronze micro–nano fiber membrane

Silica/cesium tungsten bronze (SiO(2)/Cs(x)WO(3)) composite micro–nano fiber membranes were prepared by the co-precursor electrostatic spinning method using cesium chloride, tungsten powder and tetraethyl orthosilicate as raw materials. TGA, XRD, FT-IR, XPS, SEM and ultraviolet-visible-near red spec...

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Autores principales: Song, Yilong, Zhao, Fang, Li, Zhizun, Cheng, Zhaogang, Wan, Hongjing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9041293/
https://www.ncbi.nlm.nih.gov/pubmed/35498926
http://dx.doi.org/10.1039/d1ra06157g
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author Song, Yilong
Zhao, Fang
Li, Zhizun
Cheng, Zhaogang
Wan, Hongjing
author_facet Song, Yilong
Zhao, Fang
Li, Zhizun
Cheng, Zhaogang
Wan, Hongjing
author_sort Song, Yilong
collection PubMed
description Silica/cesium tungsten bronze (SiO(2)/Cs(x)WO(3)) composite micro–nano fiber membranes were prepared by the co-precursor electrostatic spinning method using cesium chloride, tungsten powder and tetraethyl orthosilicate as raw materials. TGA, XRD, FT-IR, XPS, SEM and ultraviolet-visible-near red spectrophotometry were used to analyze the thermal decomposition process, phase composition, microscopic morphology and near-infrared absorption properties of the product. Studies have shown that as the ratio of Cs/W of raw materials increases, the crystallinity of Cs(x)WO(3) in the product increases first and then decreases. When n(Cs)/n(W) reaches 0.5, its crystallinity is the most complete; similarly, calcination also contributes to the crystallization of Cs(0.33)WO(3), but high temperatures above 800 °C will also destroy its crystal structure. The study found that after calcination at 700 °C, the fiber membrane with a Cs/W atomic ratio of 0.5 has the best infrared absorption performance. The average absorbance of near-infrared light at 780–2500 nm is 1.5, which is 5.56 times that of the pure SiO(2) fiber membrane. The tensile strength reaches 2.4 MPa, which can meet practical requirements. This research provides a basis for the development of flexible solar shading materials under complex outdoor conditions.
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spelling pubmed-90412932022-04-28 Electrospinning preparation and near-infrared absorption properties of a silica/cesium tungsten bronze micro–nano fiber membrane Song, Yilong Zhao, Fang Li, Zhizun Cheng, Zhaogang Wan, Hongjing RSC Adv Chemistry Silica/cesium tungsten bronze (SiO(2)/Cs(x)WO(3)) composite micro–nano fiber membranes were prepared by the co-precursor electrostatic spinning method using cesium chloride, tungsten powder and tetraethyl orthosilicate as raw materials. TGA, XRD, FT-IR, XPS, SEM and ultraviolet-visible-near red spectrophotometry were used to analyze the thermal decomposition process, phase composition, microscopic morphology and near-infrared absorption properties of the product. Studies have shown that as the ratio of Cs/W of raw materials increases, the crystallinity of Cs(x)WO(3) in the product increases first and then decreases. When n(Cs)/n(W) reaches 0.5, its crystallinity is the most complete; similarly, calcination also contributes to the crystallization of Cs(0.33)WO(3), but high temperatures above 800 °C will also destroy its crystal structure. The study found that after calcination at 700 °C, the fiber membrane with a Cs/W atomic ratio of 0.5 has the best infrared absorption performance. The average absorbance of near-infrared light at 780–2500 nm is 1.5, which is 5.56 times that of the pure SiO(2) fiber membrane. The tensile strength reaches 2.4 MPa, which can meet practical requirements. This research provides a basis for the development of flexible solar shading materials under complex outdoor conditions. The Royal Society of Chemistry 2021-09-20 /pmc/articles/PMC9041293/ /pubmed/35498926 http://dx.doi.org/10.1039/d1ra06157g Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Song, Yilong
Zhao, Fang
Li, Zhizun
Cheng, Zhaogang
Wan, Hongjing
Electrospinning preparation and near-infrared absorption properties of a silica/cesium tungsten bronze micro–nano fiber membrane
title Electrospinning preparation and near-infrared absorption properties of a silica/cesium tungsten bronze micro–nano fiber membrane
title_full Electrospinning preparation and near-infrared absorption properties of a silica/cesium tungsten bronze micro–nano fiber membrane
title_fullStr Electrospinning preparation and near-infrared absorption properties of a silica/cesium tungsten bronze micro–nano fiber membrane
title_full_unstemmed Electrospinning preparation and near-infrared absorption properties of a silica/cesium tungsten bronze micro–nano fiber membrane
title_short Electrospinning preparation and near-infrared absorption properties of a silica/cesium tungsten bronze micro–nano fiber membrane
title_sort electrospinning preparation and near-infrared absorption properties of a silica/cesium tungsten bronze micro–nano fiber membrane
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9041293/
https://www.ncbi.nlm.nih.gov/pubmed/35498926
http://dx.doi.org/10.1039/d1ra06157g
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