Abstract
Bi12O17Cl2 is an ideal photocatalytic material with an appropriate band gap and visible light absorption. However, the performance of a single Bi12O17Cl2 photocatalytic material is still limited by the low separation rate of photogenerated electrons and holes. In this paper, the 2D Bi12O17Cl2 and 2D g-C3N4 materials were prepared, and fabricated 2D/2D Bi12O17Cl2/g-C3N4 nanosheets by electrostatic self-assembly using the different surface electrical properties of the two materials. The formation of an electric interface field between Bi12O17Cl2 and g-C3N4 nanosheets and the matched energy band structure of the two materials can effectively promote the separation of electrons and holes and reduce recombination to improve the photocatalytic performance of semiconductor materials. The Bi12O17Cl2/g-C3N4 with appropriate composite ratio has good degradation activity of Rhodamine-B (RhB) organic pollutants. The composite material can degrade nearly 100% of 10 ppm RhB in the reaction time of 2 h under neutral conditions and completely degrade rhodamine B in 90 min under acidic conditions.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Acknowledgements
This work was partly supported by the National Natural Science Foundation of China (No. 21978276.) the Fundamental Research Funds for the Central Universities (Grant Nos. 2652019157, 2652019158,; 2652019159).
Funding
This work was partly supported by the National Natural Science Foundation of China (No 21978276.) the Fundamental Research Funds for the Central Universities (Grant Nos. 2652019157, 2652019158, 2652019159).
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All authors contributed to the concept and design of this study. TS and YZ carried out material preparation, data collection, and analysis. TS wrote the first draft of the manuscript, and all authors commented on the previous versions of the manuscript. All authors read and approved the final manuscript.
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Shi, T., Zhong, Y., Feng, Y. et al. Construction of interface electric field by electrostatic self-assembly: enhancing the photocatalytic performance of 2D/2D Bi12O17Cl2/g-C3N4 nanosheets. J Mater Sci: Mater Electron 33, 17522–17534 (2022). https://doi.org/10.1007/s10854-022-08614-x
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DOI: https://doi.org/10.1007/s10854-022-08614-x