阳极修饰对微生物燃料电池性能的影响
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

X703

基金项目:

国家自然科学基金资助项目(51678387);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)。第一作者马志远(1978—),男,汉,硕士,高级工程师。研究方向水土污染防治。E-mail:biotechzy@163.com。*通信作者廉 静(1980—),女,汉,硕士,教授。研究方向水污染控制技术、环境能源技术与生物修复技术。E-mail:ningjingzhiyuan98@163.com。


Effect of PW12/rGO modified anode on electricity generation and perchlorate reduction performance of microbial fuel cell
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    本研究利用PW12/rGO复合材料负载于碳布表面制得PW12/rGO修饰阳极并构建单室空气阴极微生物燃料电池(MFC),考察PW12/rGO修饰阳极对MFC产电和高氯酸盐(ClO4-)还原性能的影响,并通过对阳极表面形态及其电化学特性的分析,探讨PW12/rGO修饰阳极改善MFC产电性能的机理。结果表明,当ClO4-浓度为700 mg.L-1时,PW12/rGO修饰阳极MFC的最大输出电压和ClO4-平均去除速率分别为200.18 mV和1.15 kg.m-3.d-1,分别是空白阳极MFC的4.4倍和1.06倍;扫描电镜(SEM)表征显示,PW12/rGO修饰阳极表面附着的微生物量远高于空白阳极;Tafel曲线、循环伏安曲线(CV)和交流阻抗谱(EIS)测试表明,PW12/rGO修饰阳极较空白阳极具有更高的交换电流密度、CV电活性面积以及更低的电荷转移电阻。PW12/rGO修饰阳极提高了阳极电子产量和电子传递速率,进而改善了MFC的产电性能。

    Abstract:

    In this study, the PW12/rGO composite material were deposited on the surface of carbon cloth to obtain PW12/rGO modified anode, which was used to construct a single-chamber air microbial fuel cell (MFC). The Effect of PW12/rGO modified anode on electricity generation and perchlorate reduction performance in MFC was investigated. Based on the analysis of anode surface morphology and its electrochemical characteristics, the mechanism of PW12/rGO modified anode to improve the electricity generation performance of MFC was discussed. The results show that, by feeding a medium of ClO4- (700 mg.L-1), the maximum output voltage and the average removal rate of ClO4- of PW12/rGO modified anode MFC are 200.18 mV and 1.15 kg.m-3.d-1, which are 4.4 and 1.06 times compared to blank anode MFC, respectively. Scanning electron microscopy (SEM) show that microorganisms attached to the surface of PW12/rGO modified anode is more than that of blank anode; tafel curve, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) reveal that PW12/rGO modified anode enhances the exchange current density, CV electroactive area, and decreases charge transfer resistance. The anode electron yield and electron transfer rate are increased by PW12/rGO modified anode, thereby the electricity generation performance of MFC is improved.

    参考文献
    相似文献
    引证文献
引用本文

马志远,牛艳艳,赵娟,等. 阳极修饰对微生物燃料电池性能的影响[J]. 科学技术与工程, 2021, 21(18): 7820-7826.
Ma Zhiyuan, Niu Yanyan, Zhao Juan, et al. Effect of PW12/rGO modified anode on electricity generation and perchlorate reduction performance of microbial fuel cell[J]. Science Technology and Engineering,2021,21(18):7820-7826.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2020-11-08
  • 最后修改日期:2021-05-15
  • 录用日期:2021-03-14
  • 在线发布日期: 2021-07-29
  • 出版日期:
×
律回春渐,新元肇启|《科学技术与工程》编辑部恭祝新岁!
亟待确认版面费归属稿件,敬请作者关注