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.

中文翻译：

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NaCl辅助合成Fe2+自掺杂Fe2O3/C3N4纳米片作为高效Fenton催化剂

为了开发在温和条件下使用的高活性非均相 Fenton 催化剂，通过 NaCl 辅助模板法成功合成了 Fe2+ 自掺杂 Fe2O3/C3N4 纳米片。FexO3/C3N4 纳米片显示出优异的光芬顿催化苯酚降解性能。FexO3/C3N4的降解常数分别是Fe2O3/C3N4、氮化碳和α-Fe2O3的13.3倍、26.1倍和15.9倍。FexO3/C3N4 纳米片中的Fe2+ 对提高芬顿催化活性的贡献最大，促进了·OH 自由基的产生。该工作为构建具有新型结构的高效芬顿催化剂提供了一种有前景的方法。