首页|In-situ degradation of organic pollutants by bioelectrical-Fenton reaction with a metal-free polyaniline-derived nitrogen-doped carbon nanofibre electrode

In-situ degradation of organic pollutants by bioelectrical-Fenton reaction with a metal-free polyaniline-derived nitrogen-doped carbon nanofibre electrode

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  • NSTL
  • Elsevier
Polyaniline (PANI)-derived nitrogen-doped carbon nanofibres used as cathode electrodes in situ generate and activate H2O2 to form ?OH without metal catalysts. The degradation rates of ciprofloxacin hydrochloride (CIP) and methyl orange (MO) were 99.64% and 100%, respectively, and the mineralisation rates were 54.24% and 62.56% at the modified metal-free Fenton system for microbial fuel cells (MFC-Fenton) cathode. Micropores were introduced into the electrode to provide active sites such as pyridinic N and graphitic N, which improves the electron transfer rate and redox activity, as well as exhibiting excellent power generation capacity (783.48 ± 10.52 mV and 33.57 ± 0.14 W m? 3) in comparison with a single MFC process (543.14 ± 3.56 mV and 11.02 ± 1.03 W m? 3). The degradation intermediates and mechanisms of this process were studied in detail. This study provides a new understanding of MFC-Fenton systems for removing practical organic pollutants in wastewater.

Binder-free electrodeBioelsrical-FentonCiprofloxacin hydrochlorideMetal-free

Zhang K.、Zhang Z.、Du C.、Liu Y.、Li B.、Wu Y.、Dong S.、Feng J.、Sun J.、Zhang J.、Guo W.、Chen R.

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School of Environment Henan Normal University Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control Ministry of Education Henan Key Laboratory for Environmental Pollution Control

Sanmenxia Polytechnic

Department of Chemistry Xinxiang Medical University

2022

10.1016/j.jallcom.2022.163710

Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN：0925-8388
年,卷(期)：2022.901
  • 10
  • 56