Email this article DMF-Assisted Hydrothermal Synthesis of BiVO4/Bi2VO5 Heterojunction Photocatalyst with Highly Enhanced Photocatalytic Activity
- Authors: Wendi Huang 1, Sun J.2, Shen T.2, Gu S.3, Wang X.1
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Affiliations:
- School of Chemistry and Chemical Engineering, Qilu University of Technology
- School of Environmental Science and Engineering, Qilu University of Technology
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, University of Science and Technology Beijing
- Issue: Vol 92, No 9 (2018)
- Pages: 1837-1845
- Section: Photochemistry and Magnetochemistry
- URL: https://bakhtiniada.ru/0036-0244/article/view/170140
- DOI: https://doi.org/10.1134/S0036024418090340
- ID: 170140
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Abstract
An unique BiVO4/Bi2VO5 heterostructure was fabricated via one-step hydrothermal method. Bi2VO5 was grown in BiVO4 in situ by adding N,N-dimethylformamide during hydrothermal synthesis. The formation of BiVO4/Bi2VO5 heterostructure was confirmed with XRD, XPS, HRTEM, and Raman spectra. DMF addition in the hydrothermal solvent is significant for the formation of Bi2VO5 nanocrystals. Photocatalytic performance displayed that BiVO4/Bi2VO5 exhibited superior photocatalytic activity compared to pure BiVO4 under visible-light irradiation. The active species trapping experiment showed that photogenerated electrons played a critical role in the degradation of methylene blue (MB) in BiVO4/Bi2VO5 photocatalysis system.The boosted photocatalytic activity is mainly attributed to the effective separation of photo-generated electron-hole pairs at heterojunction BiVO4/Bi2VO5 interface. Further, the wide absorption band also favors its exceptional photocatalytic activity.
About the authors
Wendi Huang
School of Chemistry and Chemical Engineering, Qilu University of Technology
Email: xk_wang@qlu.edu.cn
China, Jinan, 250353
Jing Sun
School of Environmental Science and Engineering, Qilu University of Technology
Email: xk_wang@qlu.edu.cn
China, Jinan, 250353
Tingting Shen
School of Environmental Science and Engineering, Qilu University of Technology
Email: xk_wang@qlu.edu.cn
China, Jinan, 250353
Shaonan Gu
Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials,University of Science and Technology Beijing
Email: xk_wang@qlu.edu.cn
China, Beijing, 100083
Xikui Wang
School of Chemistry and Chemical Engineering, Qilu University of Technology
Author for correspondence.
Email: xk_wang@qlu.edu.cn
China, Jinan, 250353
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