Citation: Hanxiang Chen, Jie Zeng, Mindong Chen, Zhigang Chen, Mengxia Ji, Junze Zhao, Jiexiang Xia, Huaming Li. Improved visible light photocatalytic activity of mesoporous FeVO₄ nanorods synthesized using a reactable ionic liquid[J]. Chinese Journal of Catalysis, ;2019, 40(5): 744-754. doi: S1872-2067(19)63272-9 shu

Improved visible light photocatalytic activity of mesoporous FeVO₄ nanorods synthesized using a reactable ionic liquid

a School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, Jiangsu, China;
b School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, Jiangsu, China;
c School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China

Received Date: 3 November 2018
Revised Date: 24 November 2018

Fund Project: This work was financially supported by the National Natural Science Foundation of China (21471069, 21476098, and 21576123) and Jiangsu University Scientific Research Funding (11JDG0146).

Mesoporous FeVO₄ nanorods were successfully synthesized by calcining the precursor FeVO₄·1.1H₂O nanorods, which were obtained via a simple hydrothermal method in the presence of a reactable metal-ion-containing ionic liquid, 1-octyl-3-methylimidazolium tetrachloride ferrate(Ⅲ) ([Omim]FeCl₄). The structure and morphology of the prepared samples were examined using various characterization techniques. During the synthetic process,[Omim]FeCl₄ acted as the solvent, reactant, and capping agent simultaneously. Moreover, the porous FeVO₄ nanorods as the heterogeneous photo-Fenton-like semiconductor catalyst for the degradation of tetracycline and rhodamine B under visible light irradiation exhibited excellent photocatalytic activity. This excellent photocatalytic activity of the porous FeVO₄ nanorods can be attributed to the synergistic effect of their high electron-hole pair separation rate, suitable band gap structure, and large specific surface area. The possible photocatalytic degradation mechanism of FeVO₄/H₂O₂ photocatalytic systems was also discussed in detail.
- FeVO₄,
- Visible light,
- Photodegradation,
- Ionic liquid
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Improved visible light photocatalytic activity of mesoporous FeVO₄ nanorods synthesized using a reactable ionic liquid