Frontiers in Chemistry | |
Novel TiO2/GO/M-MMT nano-heterostructured composites exhibiting high photocatalytic activity | |
Chemistry | |
W. Li1  W. B. Bao1  C. L. Zhang2  M. Wang2  D. Y. Li2  Y. He2  H. L. Bao2  | |
[1] School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang, Liaoning, China;School of Materials Science and Engineering, Liaoning Technical University, Fuxin, Liaoning, China; | |
关键词: TiO/GO/M-MMT composite; methyl orange; photocatalytic performance; electron transfer ability; nanoheterostructures; | |
DOI : 10.3389/fchem.2023.1113186 | |
received in 2022-12-01, accepted in 2023-02-27, 发布年份 2023 | |
来源: Frontiers | |
【 摘 要 】
This study proposed a technique to enhance the photocatalytic properties of TiO2 using graphene oxide (GO) and modified Montmorillonite (M-MMT). TiO2/GO/M-MMT nano-heterostructured composites were prepared via hydrothermal and co-precipitation. The photocatalytic performance was evaluated by investigating the photodegradation rate and absorption behavior of methyl orange (MO) under visible light irradiation. The results showed that TiO2/GO/M-MMT heterojunction exhibited excellent photocatalytic degradation performance, as the degradation rate of MO was observed to be 99.3% within 150 min. The density of adsorbed MO decreased by 62.1% after 210 min of dark adsorption using the TiO2/GO/M-MMT composite, which was significantly higher than that achieved using M-MMT, GO/M-MMT, and TiO2/M-MMT. The nano-heterostructure increased the effective interface between TiO2, GO, and MMT, which increased the charge transfer ability and prolonged the electron-hole separation time. Therefore, the results of this study can be used to design novel photocatalysts to eradicate environmental pollutants.
【 授权许可】
Unknown
Copyright © 2023 Li, He, Bao, Bao, Li, Zhang and Wang.
【 预 览 】
Files | Size | Format | View |
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RO202310109303566ZK.pdf | 2658KB | download |