Abstract
The 7:3LaCoO3/Bi2WO6 composite synthesized in this experiment had a significant effect on the degradation of TC in the solution under visible light (85.5% at 150min). The experimental results proved that the composite material not only had a high removal rate of TC in the water, but also could be recycled and met the requirements of environmental protection. XRD, SEM, FT-IR, XPS and other analysis showed that in the 7:3LaCoO3/Bi2WO6 composite, the two monomers LaCoO3 and Bi2WO6 were well combined together. The two active groups h+ and •O2- played an important role in the photocatalytic degradation process of the composite material. The electrons of the composite material moved from the conduction band of Bi2WO6 to the valence band of LaCoO3, which further enhanced the photocatalytic activity of the composite material. This research provided a new type of photocatalytic material for treating TC in water, also provided a certain theoretical support for the composite of lanthanide-based photocatalytic materials and bismuth-based photocatalytic materials.
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Acknowledgements
This work was financially supported by Shaanxi Nature Science Basic Research Program (2019JM-429, 2019JQ-382), National Natural Science Foundation of China (21906039, 21906072). Funding project for introduced overseas scholars of Hebei Province (C20190321), Program for water resources research and promotion of Hebei Province (2019-55), Doctoral research fund of Hebei Geo University (BQ2019041).
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Guo, J., Xu, Y., Li, J. et al. Preparation of a novel composite material LaCoO3/Bi2WO6 and its application in the treatment of tetracycline. J Mater Sci: Mater Electron 32, 13813–13824 (2021). https://doi.org/10.1007/s10854-021-05957-9
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DOI: https://doi.org/10.1007/s10854-021-05957-9