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NaCl-assisted synthesis of Fe2+ self-doped Fe2O3/C3N4 nanosheets as efficient Fenton catalyst

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Abstract

To develop high-activity heterogeneous Fenton catalysts used under mild conditions, the Fe2+ self-doped Fe2O3/C3N4 nanosheet has been successfully synthesized by a NaCl-assisted templating method. The FexO3/C3N4 nanosheet shows excellent photo-Fenton catalytic performance for phenol degradation. The degradation constant of the FexO3/C3N4 is 13.3 times, 26.1 times and 15.9 times that of Fe2O3/C3N4, carbon nitride and α-Fe2O3, respectively. The Fe2+ in FexO3/C3N4 nanosheet contributes the most to the improved Fenton catalytic activity, boosting the production of the ·OH radicals. The work provides a promising way for building highly efficient Fenton catalyst with novel structure.

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Acknowledgements

This work was financially supported by Natural Science Foundation of China (Grant No. 21971086), Natural Science Foundation of Shandong Province (ZR2019MB013) and Doctoral Research Foundation of Jining University (Grant No. 2017BSZX07).

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Original idea was conceived by XS, JZ and QL. Experiment design and data analysis were performed by XS, XL, GL, MD and GL. Manuscript was drafted by XS, JZ and QL. All authors discussed the results and commented on the manuscript.

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Correspondence to Jian Zhang or Qifang Lu.

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Shi, X., Li, X., Liu, G. et al. NaCl-assisted synthesis of Fe2+ self-doped Fe2O3/C3N4 nanosheets as efficient Fenton catalyst. J Mater Sci 55, 10035–10046 (2020). https://doi.org/10.1007/s10853-020-04775-4

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