High-capacity NCNT-encapsulated metal NP catalysts on carbonised loofah with dual-reaction centres over C-M bond bridges for Fenton-like degradation of antibiotics

Zhang, Xiao ¹Yao, Zhongping ¹Wang, Jiankang ²Guo, Wanqian ¹Wu, Xiaohong ¹Jiang, Zhaohua¹

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作者信息

1. Harbin Inst Technol
2. Yangtze Normal Univ
折叠

Abstract

The intensification of electron transport between the dual-reaction centres in Fenton-like catalyst is demonstrated through the incorporation of carbon-metal (C-M) bond bridges. Herein, nitrogen-doped carbon nanotubeencapsulated Fe3C (Fe3C@NCNT) with dual-reaction centres over short C-Fe bond was constructed through DFT calculation, and accordingly a series of NCNTs-encapsulated Fe/Fe3C, Co, and Mo2C nanoparticles on carbonised loofah were developed by dynamic thermal impregnation and subsequent pyrolysis process. The resultant catalysts displayed satisfactory degradation properties of antibiotics, in which Fe/Fe3C@NCNTs-CL-800 achieved norfloxacin (NOR) removal efficiency of 93.8% in 90 min under neutral pH, and presented excellent cycle stability in NOR removal as well as universality in various antibiotic degradation systems. The remarkable degradation performance of heterogeneous Fenton-like catalysts was attributed to enhancing electron transport to electron-rich M centres over short C-M bond bridges. This study will open a new perspective on the rational design of catalysts for Fenton-like degradation.

Key words

C-M bond bridges/Dual-reaction centres/Fenton-like degradation/Antibiotics/Loofah sponge/DOPED CARBON/ENHANCEMENT/NANOTUBES/REMOVAL/COMPLEXES/NANOWIRES/SPONGE/ACID

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出版年

2022

Applied Catalysis

ISSN：0926-3373

被引量24

参考文献量68

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