Investigation of dual-functional carbon cathode catalysts from agricultural wastes in the heterogeneous electro-Fenton process

In heterogeneous electro-Fenton process, the design of electrocatalysts for in-situ generation of H2O2 and efficient conversion to •OH remains a challenge. Herein, a simple one-step pyrolysis strategy has been developed to synthesize green and stable dual-functional electro-catalysts from agricultur...

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Bibliographic Details
Published in:Applied catalysis. B, Environmental Environmental, 2023-11, Vol.337, p.123018, Article 123018
Main Authors: Yang, Qiang, Chu, Longgang, Wu, Tongliang, Zhou, Yiyi, Liu, Cun, Cang, Long, Fang, Guodong, Cui, Peixin, Wang, Yujun
Format: Article
Language:English
Subjects:
Biochar
Dual-functional electro-catalysts
Heterogeneous electro-Fenton
MnO nanoclusters
operando XAFS
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Summary:In heterogeneous electro-Fenton process, the design of electrocatalysts for in-situ generation of H2O2 and efficient conversion to •OH remains a challenge. Herein, a simple one-step pyrolysis strategy has been developed to synthesize green and stable dual-functional electro-catalysts from agricultural wastes. The biochar of soybean roots (RSBC) with ample -COOH and C-O-C functional groups exhibited considerable capacity for H2O2 production (21.6 mM at −0.4 V vs RHE), and the dual-functional electron-catalyst exhibits an excellent catalytic reaction for antibiotics removal (100 % cloroquine phosphate with kobs=0.035 min−1). The ultra-small MnO nanoclusters (
ISSN:0926-3373
1873-3883
DOI:10.1016/j.apcatb.2023.123018