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Enhancing sensitivity of microbial fuel cell sensors for low concentration biodegradable organic matter detection: Regulation of substrate concentration, anode area and external resistance

文献类型：期刊论文

作者Gao, Yangyang1,2,3; Wang, Sha1,2,3; Yin, Fengjun1,2,3; Hu, Pin2; Wang, Xingzu1,2,3; Liu, Yuan1,2,3; Liu, Hong1,2,3
刊名JOURNAL OF ENVIRONMENTAL SCIENCES
出版日期2021-03-01
卷号101页码:227-235
关键词Microbial fuel cell sensor High sensitivity Biodegradable organic matter Substrate concentration Anode area External resistance
ISSN号1001-0742
DOI10.1016/j.jes.2020.08.020
通讯作者Liu, Yuan(liuyuan@cigit.ac.cn)
英文摘要The relatively low sensitivity is an important reason for restricting the microbial fuel cell (MFC) sensors' application in low concentration biodegradable organic matter (BOM) detection. The startup parameters, including substrate concentration, anode area and external resistance, were regulated to enhance the sensitivity of MFC sensors. The results demonstrated that both the substrate concentration and anode area were positively correlated with the sensitivity of MFC sensors, and an external resistance of 210 Omega was found to be optimal in terms of sensitivity of MFC sensors. Optimized MFC sensors had lower detection limit (1 mg/L) and higher sensitivity (Slope value of the linear regression curve was 1.02), which effectively overcome the limitation of low concentration BOM detection. The essential reason is that optimized MFC sensors had higher coulombic efficiency, which was beneficial to improve the sensitivity of MFC sensors. The main impact of the substrate concentration and anode area was to regulate the proportion between electrogens and nonelectrogens, biomass and living cells of the anode biofilm. The external resistance mainly affected the morphology structure and the proportion of living cells of the anode. This study demonstrated an effective way to improve the sensitivity of MFC sensors for low concentration BOM detection. (C) 2020 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
资助项目National Natural Science Foundation of China[51525805] ; National Natural Science Foundation of China[51727812] ; National Natural Science Foundation of China[51808527] ; Soft Science Research Project of Sichuan[2019JDR0286] ; Special Research Assistant Program of Chinese Academy of Science
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000598914600019
出版者SCIENCE PRESS
源URL[http://119.78.100.138/handle/2HOD01W0/12679]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Liu, Yuan
作者单位1.Chinese Acad Sci, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Yangyang,Wang, Sha,Yin, Fengjun,et al. Enhancing sensitivity of microbial fuel cell sensors for low concentration biodegradable organic matter detection: Regulation of substrate concentration, anode area and external resistance[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2021,101:227-235.
APA Gao, Yangyang.,Wang, Sha.,Yin, Fengjun.,Hu, Pin.,Wang, Xingzu.,...&Liu, Hong.(2021).Enhancing sensitivity of microbial fuel cell sensors for low concentration biodegradable organic matter detection: Regulation of substrate concentration, anode area and external resistance.JOURNAL OF ENVIRONMENTAL SCIENCES,101,227-235.
MLA Gao, Yangyang,et al."Enhancing sensitivity of microbial fuel cell sensors for low concentration biodegradable organic matter detection: Regulation of substrate concentration, anode area and external resistance".JOURNAL OF ENVIRONMENTAL SCIENCES 101(2021):227-235.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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