Abstract
In this work, three-dimensional Bi-MOF/Bi2WO6 microspheres were successfully prepared using Bi2WO6 microspheres as a template with the help of organometallic skeleton (MOF), which has diverse pore structures, abundant active sites, and good redox activity. Tetracycline hydrochloride (TC) degradation was used to gauge the composites performed as photocatalysts under simulating sunlight irradiation. The results show that the Bi-MOF/Bi2WO6 composite could remove most of TC within 60 min with a degradation rate higher than 89.2% and a reaction rate constant k as high as 0.0373 min−1, which is 2.0 times higher than that of pure Bi2WO6. The enhanced light absorption intensity in the UV area, as well as the increased electron/hole separation and compounding efficiency were considered as the reasons for the highly improved photocatalytic performance of the composites. By examining potential electron transport routes, the formation of heterojunction was confirmed. A series of Bi-MOF/Bi2WO6 heterostructures were prepared using Bi-MOF as a hard template to create a close contact heterojunction interface. This study provides a strategy for the design and preparation of highly reactive Bi2WO6-based heterojunction materials that can effectively address the challenges of environmental remediation.
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Funding
This project was financially supported by the National Natural Science Foundation of China [Grant No. 22272124], Scientific Research Fund of Zhejiang Provincial Education Department [Grant No. Y202250028], Natural Science Foundation of Huzhou City [Grant No. 2022YZ07], and Graduate Innovative Fund of Wuhan Institute of Technology [Grant No. CX2022006].
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Fengrui Li contributed toward methodology, validation, formal analysis, and writing original draft. Xiao Dai contributed toward methodology, validation, formal analysis, and writing original draft. Linfeng Zhang contributed toward supervision, visualization, and writing review and editing. Zhe Zhang contributed toward investigation, data curation, and writing review and editing. Huadong Wu contributed toward idea, investigation, visualization, and writing original draft. Jianding Li contributed toward supervision, visualization, and writing review and editing. Jia Guo contributed toward supervision, visualization, and writing review and editing.
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Li, F., Dai, X., Zhang, L. et al. Convenient interface engineering of hierarchical flower spherical Bi-MOF/Bi2WO6 heterostructures for high-performance visible light photocatalytic degradation of tetracycline hydrochloride. J Mater Sci: Mater Electron 35, 463 (2024). https://doi.org/10.1007/s10854-024-12258-4
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DOI: https://doi.org/10.1007/s10854-024-12258-4