| 引用本文: | 张伟贤,赵庆良,张云澍,姜珺秋.镁离子对微生物燃料电池阳极微生物产电性能的促进[J].哈尔滨工业大学学报,2016,48(8):42.DOI:10.11918/j.issn.0367-6234.2016.08.007 |
| ZHANG Weixian,ZHAO Qingliang,ZHANG Yunshu,JIANG Junqiu.Enhancement of electricity generation performance of microbial fuel cell anode microorganism by magnesium ion[J].Journal of Harbin Institute of Technology,2016,48(8):42.DOI:10.11918/j.issn.0367-6234.2016.08.007 |
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| 摘要: |
| 为考察镁离子对微生物燃料电池阳极微生物产电性能的影响, 利用电化学测量与高通量测序等方法对比研究不同浓度镁离子对微生物燃料电池阳极电势、电化学活性与阳极微生物群落结构等方面的促进作用.结果表明：当阳极底物中镁离子浓度分别为0.5(M1)、2.0(M2)和5.0 mmol/L(M3)时，微生物燃料电池阳极电势由对照组的-0.417 V(CK，vs. Ag/AgCl)分别降低至-0.443 (M1)、-0.469(M2)和-0.477 V(M3).相应地，功率密度也由36.65 mW/m2(CK)分别提高至40.19(M1)、44.21(M2)和45.48 mW/m2(M3).此外，阳极微生物的电化学活性与产电微生物量均随阳极底物中镁离子浓度的升高得到显著提高，说明镁离子能够提高微生物燃料电池的功率输出，对胞外电子传递过程有重要作用.
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| 关键词: 微生物燃料电池 微生物 阳极 镁离子 产电 |
| DOI：10.11918/j.issn.0367-6234.2016.08.007 |
| 分类号:TM911.45 |
| 文献标识码:A |
| 基金项目:国家自然科学基金(4,6) |
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| Enhancement of electricity generation performance of microbial fuel cell anode microorganism by magnesium ion |
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ZHANG Weixian1, ZHAO Qingliang1,2, ZHANG Yunshu1, JIANG Junqiu1
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(1. School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China; 2.State Key Lab of Urban Water Resource and Environment(Harbin Institute of Technology), Harbin 150090, China)
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| Abstract: |
| To investigate the effect of magnesium ion on the bulk performance of microbial fuel cell anode microorganism, analytical methods such as electrochemical measurement and high-throughput sequencing were applied to determine the potential promotion of magnesium on anode potential, electrochemical activity and anode microbial community structure under different ion concentrations were evaluated. With the magnesium ion concentration increased from 0.5 (M1) to 2.0 (M2) and further to 5.0 mmol/L (M3), the anode potential of microbial fuel cell was declined from-0.443(M1) (CK, vs. Ag/AgCl) to-0.469(M2) to-0.477 V (M3), respectively, in comparison with that of-0.417 V in control test. Accordingly, power density was enhanced from 36.65 mW/m2 (CK) to 40.19 mW/m2 (M1), 44.21 mW/m2 (M2) and 45.48 mW/m2 (M3). Furthermore, electrochemical activity and electricigen biomass were increased notably, indicating magnesium could enhance the power output of microbial fuel cell and played an important role in extracellular electron transfer.
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| Key words: microbial fuel cell microorganism anode magnesium ion electricity production |
