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Journal of Sol-Gel Science and Technology
Published in: Journal of Sol-Gel Science and Technology 1/2022

10-05-2022 | Original Paper: Sol-gel and hybrid materials for catalytic, photoelectrochemical and sensor applications

Acid-etched coal fly ash/TiO2 nanocomposites with high photocatalytic degradation efficiency: a high value-added application of coal fly ash

Authors: Yu Liang, Song Chen, Jiaxin Zhong, Hao Ding, Zhanli Zhu, Shu Li

Published in: Journal of Sol-Gel Science and Technology | Issue 1/2022

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Abstract

Coal fly ash (CFA), as a kind of aluminosilicate-rich solid wastes that was generated by the combustion of coal, was used as support to load TiO2 nanoparticles to improve the photocatalytic degradation efficiency of textile dye with the advantage of low cost. In this article, a novel acid-etched coal fly ash/TiO2 nanocomposites photocatalyst was prepared by HCl etching followed by sol-gel method. The prepared nanocomposite was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), Fourier Transform infrared spectroscopy (FTIR), X-ray photoelectron spectra (XPS) and UV–vis diffused reflectance spectroscopy (DRS) techniques. The photocatalytic degradation efficiency were evaluated by using methyl orange as model. Compared with the CFA (no HCl etching)/TiO2 nanocomposites, the prepared CFA/TiO2 nanocomposites had much better photodegradation efficiency. The preparation and application of CFA/TiO2 nanocomposites will promote the high value-added application of CFA greatly.
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Metadata
Title
Acid-etched coal fly ash/TiO2 nanocomposites with high photocatalytic degradation efficiency: a high value-added application of coal fly ash
Authors
Yu Liang
Song Chen
Jiaxin Zhong
Hao Ding
Zhanli Zhu
Shu Li
Publication date
10-05-2022
Publisher
Springer US
Published in
Journal of Sol-Gel Science and Technology / Issue 1/2022
Print ISSN: 0928-0707
Electronic ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-022-05822-z

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