电沉积制备PMo<sub>12</sub>/rGO/PPy阳极及其在微生物燃料电池中的应用

郭延凯; 郭金燕; 赵娟; 马志远; 牛艳艳; 杨佳琪; 廉静

doi:10.13205/j.hjgc.202203022

电沉积制备PMo₁₂/rGO/PPy阳极及其在微生物燃料电池中的应用

doi: 10.13205/j.hjgc.202203022

1. 河北科技大学环境科学与工程学院河北省污染防治生物技术实验室, 石家庄 050018;
2. 河北省地质环境监测院河北省地质资源环境监测与保护重点实验室, 石家庄 052460

基金项目:

河北省高等学校科学技术研究重点项目(ZD2019038)

河北省人才工程资助项目(A201902019)

国家自然科学基金项目(51678387)

详细信息

作者简介:
郭延凯(1985-),男,硕士,主要研究方向为水污染处理与控制技术。kedagyk@sina.com

通讯作者:
廉静(1980-),女,教授,主要研究方向为水污染控制技术、环境能源技术与生物修复技术。ningjingzhiyuan98@163.com

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出版历程
- 收稿日期: 2021-07-16
- 网络出版日期: 2022-07-07

PREPARATION OF PMo₁₂/rGO/PPy ANODE BY ELECTRODEPOSITION FOR MICROBIAL FUEL CELLS

1. Hebei Provincial Laboratory of Biotechnology for Pollution Control, College of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;
2. Key Laboratory of Geological Resources and Environment Monitoring and Protection of Hebei Province, Hebei Institute of Geological Environment Monitoring, Shijiazhuang 052460, China

摘要

摘要: 微生物燃料电池(MFC)阳极材料的电化学特性影响其产电性能和污染物还原能力。采用电化学沉积法得到了磷钼酸/还原氧化石墨烯/聚吡咯(PMo₁₂/rGO/PPy)阳极,并对PMo₁₂/rGO/PPy阳极进行形貌表征和电化学特性分析,最后考察了PMo₁₂/rGO/PPy阳极MFC在不同浓度高氯酸盐(ClO₄^-)下的产电和还原性能。结果表明:PMo₁₂/rGO/PPy阳极较对照阳极为微生物的附着提供了更大的比表面积,为电子传递提供更多的活性位点;使得MFC阳极表面的电荷转移量增加493%,电荷转移阻抗降低83.3%,交换电流密度提高53.4%。同时,当ClO₄^-浓度为420 mg/L时,PMo₁₂/rGO/PPy阳极MFC产电性能最好,最大输出电压可达到148.47 mV。
- PMo₁₂/rGO/PPy阳极 /
- 微生物燃料电池 /
- 电化学特性 /
- 产电 /
- 高氯酸盐
Abstract: The electrochemical characteristics of anode materials for microbial fuel cells (MFC) affect their electrical performance and pollutant reduction capacity. In this experiment, the phosphomolybdic acid/reduced graphene oxide/polypyrrole (PMo₁₂/rGO/PPy) anode was obtained by electrochemical deposition method. Then the morphology and electrochemical characteristics of PMo₁₂/rGO/PPy anode were analyzed. Finally, the electricity generation and reduction performance of PMo₁₂/rGO/PPy anode MFC at different concentrations of perchlorate (ClO₄^-) were investigated. The results showed that the PMo₁₂/rGO/PPy anode provided a larger specific surface area than the control for the attachment of microorganisms, thus providing more active sites for electron transport. The use of PMo₁₂/rGO/PPy anode resulted in an increase of charge transfer amount by 493%, a decrease of charge transfer impedance by 83.3%, and an increase of exchange current density by 53.4%. At the same time, when the concentration of ClO₄^- was 420 mg/L, PMo₁₂/rGO/PPy anode MFC had the best power generation performance, and the maximum output voltage reached 148.47 mV.
- PMo₁₂/rGO/PPy anode /
- microbial fuel cell /
- electrochemical activity /
- electricity generation /
- perchlorate

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