Citation: Fei TANG, Duo-Qin DU, Yun-Fei TAN, Li-Xiao QIN. Preparation and Characterization of MoO_3-x Hexagonal Microrods as High-Efficiency Photocatalysts[J]. Chinese Journal of Applied Chemistry, ;2021, 38(1): 92-98. doi: 10.19894/j.issn.1000-0518.190335 shu

Preparation and Characterization of MoO_3-x Hexagonal Microrods as High-Efficiency Photocatalysts

Fei TANG ^{1, 2} ,
Duo-Qin DU ¹ ,
Yun-Fei TAN ¹ ,
Li-Xiao QIN ^1,,

1.
School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
2.
Chongqing Star-Tech & JRS Specialty Products Co. Ltd., Chongqing 401221, China

Corresponding author: Li-Xiao QIN, lxqin@cqu.edu.cn
Received Date: 16 December 2019
Accepted Date: 14 August 2020

Fund Project: the National Natural Science Foundation of China 21776025the Fundamental Research Funds for the Central Universities 2018CDKYGL0002the Fundamental Research Funds for the Central Universities 2018CDKYHG0028Chongqing Research Program of Basic Research and Frontier Technology CSTC2016JCYJA0474

Figures(5)

Hexagonal MoO_3-x microrods with rich surface oxygen vacancies were prepared from MoO₃ using a facile and controllable one-step reduction method with ascorbic acid as the reducing agent. The as-prepared MoO_3-x microrods exhibit much better photocatalytic activity than MoO₃ for degrading Rhodamine B due to the narrower band gap and wider range of sunlight absorption. Moreover, the photocatalytic activity of MoO_3-x increases significantly with an increase in surface oxygen vacancies. For the MoO_2.799 sample with a Mo⁵⁺ content of 20.1%, it only takes 60 minutes to degrade 90% of Rhodamine B in a solution with an initial concentration of 10 mg/L. This study may present a new strategy to synthesize semiconductor photocatalysts.
- MoO_3-x,
- Hexagonal MoO₃ microrods,
- Surface oxygen vacancies,
- Photocatalysis
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Preparation and Characterization of MoO3-x Hexagonal Microrods as High-Efficiency Photocatalysts

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通讯作者: 陈斌, bchen63@163.com

Preparation and Characterization of MoO_3-x Hexagonal Microrods as High-Efficiency Photocatalysts