Co-Fe-N@biochar anode for improvment the electricity generation performance of microbial fuel cell.

IF 2.2 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Environmental Technology Pub Date : 2024-10-01 Epub Date: 2023-11-24 DOI:10.1080/09593330.2023.2283797
Xia Zhao, Yumin Xu, Fei Yin, Yucheng Li, Xinyi Li, Qian Wei
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Abstract

Microbial fuel cells (MFCs) can generate energy while processing organic pollutants, which has a great impact on environmental wastewater treatment applications. In this study, a gel polymer was formed by Co-Fe-N co-doping biochar (Co-Fe-N@BC), which was used as the anode material to improve the electricity generation performance of MFC. The Co-Fe-N@BC material prepared at 900℃ carbonised biomass into more graphitic carbon, and its total resistance (3.56 Ω) was significantly reduced. In the corresponding dual-chamber MFC, the current density was 2.81 A/m2, and the power density reached 1181 mW/m2 at maximum. Among the materials tested, the Co-Fe-N@BC anode MFC had the highest chemical oxygen demand removal rate and coulombic efficiency, reaching 91% and 13%, respectively. It is proved that MFC with Co-Fe-N@BC anode has the best electrochemical performance.

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Co-Fe-N@biochar提高微生物燃料电池发电性能的阳极。
微生物燃料电池可以在处理有机污染物的同时产生能量,这对环境废水处理的应用有很大的影响。本研究采用Co-Fe-N共掺杂生物炭(Co-Fe-N@BC)形成凝胶聚合物,作为阳极材料,提高MFC的发电性能。在900℃下制备的Co-Fe-N@BC)材料使生物质炭化成更多的石墨炭,其总电阻(3.56 Ω)显著降低。在相应的双室MFC中,电流密度为2.81 A/m2,功率密度最高可达1181 mW/m2。在测试的材料中,Co-Fe-N@BC)阳极MFC的化学需氧量去除率和库仑效率最高,分别达到91%和13%。实验证明,以Co-Fe-N@BC为阳极的MFC具有最佳的电化学性能。本文研究的生物燃料电池的负极材料是由废生物炭(中药渣)、铁钴和三聚氰胺共混而成的凝胶聚合物。在材料测试中,Co-N/BC/Fe阳极MFC具有最高的化学需氧量(COD)去除率和库仑效率(CE),分别达到91%和13%。结果表明,Co-N/BC/Fe阳极MFC具有最佳的电化学性能。
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来源期刊
Environmental Technology
Environmental Technology 环境科学-环境科学
CiteScore
6.50
自引率
3.60%
发文量
0
审稿时长
4 months
期刊介绍: Environmental Technology is a leading journal for the rapid publication of science and technology papers on a wide range of topics in applied environmental studies, from environmental engineering to environmental biotechnology, the circular economy, municipal and industrial wastewater management, drinking-water treatment, air- and water-pollution control, solid-waste management, industrial hygiene and associated technologies. Environmental Technology is intended to provide rapid publication of new developments in environmental technology. The journal has an international readership with a broad scientific base. Contributions will be accepted from scientists and engineers in industry, government and universities. Accepted manuscripts are generally published within four months. Please note that Environmental Technology does not publish any review papers unless for a specified special issue which is decided by the Editor. Please do submit your review papers to our sister journal Environmental Technology Reviews at http://www.tandfonline.com/toc/tetr20/current
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