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在微生物燃料电池中使用的多聚醇修饰

Kasparas Kižys¹, Domas Pirštelis¹, Ingrida Bružaitė¹

¹Department of Nanotechnology, State Research Institute Center for Physical Sciences and Technology, Sauletekio 3, LT-10257 Vilnius, Lithuania.

|August 27, 2025

概括

这项研究使用聚烯 (PPy) 增强微生物燃料电池 (MFC),以促进废物发电. 用PPy修改的酵母显示出更好的生长和显著的功率密度,推进了可持续的能源解决方案.

科学领域:

可持续能源
电化学
生物技术

背景情况:

微生物燃料电池 (MFC) 提供来自有机废物的可持续能源,但由于电荷转移缓慢而面临限制.
导电聚合物,如聚烯 (PPy),可以通过改善电池和电极之间的电荷传输来提高MFC性能.

研究的目的:

对微生物燃料电池 (MFC) 中的酵母活力和电活性对聚烯 (PPy) 修饰的影响进行调查.
优化PPy度以提高MFC性能和从废水中产生能量.

主要方法:

用不同度的多聚烯 (PPy) 修改了酵母细胞 (8, 25, 50, 100, 200mM).
使用CFU/ mL计数来评估细胞活力和增殖.
使用循环电压测量 (CV) 和差异脉冲电压测量 (DPV) 评估了电化学性能.
在实验室溶液和废水中使用外部负荷测量功率密度.

主要成果:

100mM PPy度对酵母增殖的影响最大 (0. 6 × 10 7 CFU/ mL).
微分脉冲电压测量 (DPV) 显示,50mM PPy修改产生了最显著的电流密度,表明电荷传输得到了改善.
使用PPy修饰酵母的MFC在废水中实现了12mW/m2的功率密度,与实验室溶液中的45mW/m2相比.

结论:

在MFC应用中,PolyPyrrole修饰有效地提高了酵母的活力和电活性.
优化PPy度可以显著改善MFC中的电荷传输和发电.
用PPy改造的酵母显示出从废水中有效回收能源的潜力,为可持续能源技术做出贡献.

关键词:

9,10-氨基类植物电化学微生物燃料电池聚烯

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