铜离子的添加对微生物燃料电池产电的促进作用
Enhancement of bioelectricity generation by adding cupric ion in microbial fuel cells
本文探究了几种金属离子对接种希瓦氏菌 MR-1 的 微生物燃料电池（MFC） 产电性能的影响。结果表明，微量的 Cu2+ (0.1-100 μg/L) 能够显著促进 MFC 的电能输出，其中添加 1 μg/L 的 Cu2+ 对 MFC 的产电促进作用最为明显，最大输出电压可达 169 mV。在各个产电周期内 Cu2+ (1 μg/L)-MFC 的输出电压均高于对照实验。极化曲线和功率密度曲线表明，添加 1 μg/L 的 Cu2+ 能够有效减小 MFC 的内阻并提高其功率密度。循环伏安曲线显示，添加 Cu2+ (1 μg/L) 的 MFC 在电压达到 -0.48 V 后其催化电流相较于对照上升速率更快。由于希瓦氏菌能够合成并分泌黄素作为其电子传递中介体，因此推测 Cu2+ (1 μg/L) 可以促进其黄素合成并最终提高其产电性能。?????
he effects of several metal ions on the bioelectricity generation of Shewanella oneidensis (S. oneidensis) MR-1-inoculated microbial fuel cells (MFCs) were studied. The results showed that low concentration of Cu2+ (0.1-100 ug/L) increased bioelectricity output of MFCs significantly, among which added with Cu2+ (1 μg/L) resulted in the highest power output (169 mV). During all the cycles of voltage evolution, the voltage of MFC supplemented with Cu2+ (1 μg/L) were higher than that of control. Polarization curve and power density curve showed that added with Cu2+ (1 μg/L) reduced the internal resistance and enhance power density effectively. Cyclic voltammograms curve indicated that catalytic current of the MFC with 1 μg/L Cu2+ increased more rapidly from -0.48 V compared with that of control. Since S. oneidensis can produce flavins as electron mediator, the present study indicated that supplied the MFC with 1 μg/L Cu2+ may enhance the production of flavins thus improve the electricity generation of MFC.?????
雍晓雨、陈怡露、徐玉尚、郑涛
环境科学技术现状生物科学现状、生物科学发展环境生物学
微生物燃料电池希瓦氏菌 MR-1铜离子输出功率黄素
Microbial fuel cellsShewanella oneidensis MR-1cupric ionPower outputflavin?????
雍晓雨,陈怡露,徐玉尚,郑涛.铜离子的添加对微生物燃料电池产电的促进作用[EB/OL].(2015-04-15)[2025-08-16].http://www.paper.edu.cn/releasepaper/content/201504-233.点此复制
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