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11-02-2020 | Chemical routes to materials

Charge separation and strong adsorption-enhanced MoO₃ visible light photocatalytic performance

Authors: Xin Guan, Yanbing Ren, Sifan Chen, Junfeng Yan, Gang Wang, Hongyi Zhao, Wu Zhao, Zhiyong Zhang, Zhouhu Deng, Yunyao Zhang, Yang Dai, Leideng Zou, Ruiyong Chen, Chunli Liu

Published in: Journal of Materials Science | Issue 14/2020

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Abstract

This report aims to systematically study the photocatalytic properties of α-MoO₃ and h-MoO₃. Here, α-MoO₃ nanorods and h-MoO₃ hexagonal prism were successfully synthesized via a facile hydrothermal method. The products were characterized in detail, and the results showed that the products are very pure with excellent morphology. The photocatalytic properties of MoO₃ were evaluated via methylene blue and rhodamine B dyes as well as tetracycline. The results indicate that the photocatalytic efficiency of α-MoO₃ is better than that of h-MoO₃, and α-MoO₃ has the best photocatalytic activities at 24 h because of the synergistic adsorption and photocatalysis and dye-sensitized mechanism. We further proposed a charge separation model between (002) and (00_2) polar surfaces via density functional theory computation to explain the enhanced photocatalytic activities. The excellent photocatalytic efficiency of α-MoO₃ suggests that it can be used for photodegradation of wastewater.

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Title: Charge separation and strong adsorption-enhanced MoO3 visible light photocatalytic performance
Authors: Xin Guan
Yanbing Ren
Sifan Chen
Junfeng Yan
Gang Wang
Hongyi Zhao
Wu Zhao
Zhiyong Zhang
Zhouhu Deng
Yunyao Zhang
Yang Dai
Leideng Zou
Ruiyong Chen
Chunli Liu
Publication date: 11-02-2020
Publisher: Springer US
Published in: Journal of Materials Science / Issue 14/2020
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-020-04418-8

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