Photocatalytic Performance of a Novel MOF/BiFeO3 Composite
Abstract
:1. Introduction
2. Experimental Section
2.1. Preparation of MOF
2.2. Preparation of MOF/BiFeO3 Composite
2.3. Characterization of Phase and Microstructure
2.4. Measurements of Photocatalytic Performance
3. Results and Discussion
3.1. X-ray Diffraction Analysis
3.2. Morphology and Microstructure Analysis
3.3. Enhanced Photocatalytic Performance
4. Photocatalytic Reaction Mechanism of MB over MOF/BiFeO3 Composite
- Absorption of efficient photons by MOF/BiFeO3 composite photocatalyst
- Holes (h+) in valence band combine with absorbed H2O molecules which produces hydroxyl radical (·OH)
- Oxygen ionosorption
- Neutralization of by protons
- Transient hydrogen peroxide formation and dismutation of oxygen
- Decomposition of hydrogen peroxide
- Hydroxyl radical is further generated
- Oxidation of the MB molecules via successive attacks by ·OH and direct oxidation by reaction with holes
5. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Si, Y.; Li, Y.; Zou, J.; Xiong, X.; Zeng, X.; Zhou, J. Photocatalytic Performance of a Novel MOF/BiFeO3 Composite. Materials 2017, 10, 1161. https://doi.org/10.3390/ma10101161
Si Y, Li Y, Zou J, Xiong X, Zeng X, Zhou J. Photocatalytic Performance of a Novel MOF/BiFeO3 Composite. Materials. 2017; 10(10):1161. https://doi.org/10.3390/ma10101161
Chicago/Turabian StyleSi, Yunhui, Yayun Li, Jizhao Zou, Xinbo Xiong, Xierong Zeng, and Ji Zhou. 2017. "Photocatalytic Performance of a Novel MOF/BiFeO3 Composite" Materials 10, no. 10: 1161. https://doi.org/10.3390/ma10101161