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浙江大学学报（理学版）
浙江大学学报（理学版）  2019, Vol. 46 Issue (5): 589-599    DOI: 10.3785/j.issn.1008-9497.2019.05.012
环境科学     
聚中性红修饰电极对微生物燃料电池（MFC)脱氮产电性能的影响
章静, 赵丝蒙, 周昱宏, 史惠祥
浙江大学 环境与资源学院，浙江 杭州 310058
Effect on denitrification and electricity generation in microbial fuel cells（MFC) by poly-neutral red modified electrode.
ZHANG Jing, ZHAO Simeng, ZHOU Yuhong, SHI Huixiang
Department of Environmental and Resource, Zhejiang University, Hangzhou 310058, China
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摘要： 利用电聚合方法制备了聚中性红修饰电极，通过扫描电子显微镜（SEM）、能谱仪（EDS）、傅里叶变换红外光谱（FTIR）等表征手段对电极材料的微观结构与组成进行研究。为进一步考察聚中性红修饰电极对微生物燃料电池（MFC）脱氮产电性能的影响，构建了各种不同微生物燃料电池。实验表明，聚中性红修饰阴极微生物燃料电池（CPNR-MFC）具有最强的脱氮和产电性能，其次为聚中性红修饰阳极微生物燃料电池（APNR-MFC)。在不同进水硝氮浓度下，实验组MFCs对硝氮的去除率均达到90%以上，CPNR-MFC具有0.040kg ·m-3·d-1的最大硝氮去除速率和15.29 W·m-3的最大功率密度，较对照组分别提高14.29%和82.51%，而APNR-MFC仅分别提高5.71%和31.93%。通过对比MFCs的电化学特性和微生物特征，探究了聚中性红修饰电极对MFCs性能影响的机理。
关键词： 微生物燃料电池（MFC);  反硝化;  电子传递效率;  聚中性红    
Abstract: The poly-neutral red modified electrode was prepared by electropolymerization method. The microstructure and composition of the electrode material were studied by means of scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS)and Fourier transform infrared spectroscopy (FTIR). In order to further investigate the effect of poly-neutral red modified electrode on the denitrification and electricity generation of microbial fuel cell (MFC), different microbial fuel cells were constructed. The results indicate that MFC with PNR modified cathode (CPNR-MFC) has the best denitrification and electricity generation abilities, followed by MFC with PNR modified anode (APNR-MFC). Under different influent nitrate concentrations, the removal rate of nitrate from all experimental group MFCs reached above 90%. CPNR-MFC had the maximum nitrate degradation rate of 0.040 kg·m-3·d-1 and the maximum power density of 15.29 W·m-3, which was 14.29% and 82.51% higher than C-MFC, while APNR-MFC only raised 5.71% and 31.93%, respectively. By comparing the electrochemical properties and microbial characteristics of MFCs, the mechanism of the effect of poly-neutral red modified electrodes on the performance of MFCs was investigated.
Key words: microbial fuel cell(MFC)    denitrification    electron transfer efficiency    poly-neutral red
收稿日期: 2018-10-31 出版日期: 2019-09-25
CLC:  X523  
基金资助: 国家科技重大专项（2017ZX07206-002）.
通讯作者: ORCID：http://orcid.org/0000-0002-5704-4229     E-mail: huixiang_shi@163.com.
作者简介: 章静(1994—)，ORCID：http://orcid.org/0000- 0001-7927-3201 ，女，硕士，主要从事水污染控制与治理研究.
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章静
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引用本文:

章静, 赵丝蒙, 周昱宏, 史惠祥. 聚中性红修饰电极对微生物燃料电池（MFC)脱氮产电性能的影响[J]. 浙江大学学报（理学版）, 2019, 46(5): 589-599.

ZHANG Jing, ZHAO Simeng, ZHOU Yuhong, SHI Huixiang. Effect on denitrification and electricity generation in microbial fuel cells（MFC) by poly-neutral red modified electrode.. Journal of ZheJIang University(Science Edition), 2019, 46(5): 589-599.

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https://www.zjujournals.com/sci/CN/10.3785/j.issn.1008-9497.2019.05.012    或    https://www.zjujournals.com/sci/CN/Y2019/V46/I5/589

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