Bioelectricity can be produced from wastewater using microbial fuel cells (MFCs) that produce electricity during electrochemical and biochemical reactions, yet actual applications of wastewater MFCs are limited; a self-provided microbial electricity enhanced wastewater treatment method is proposed producing microbial power and enhanced pollutants removal simultaneously. A carbon felt coated with amino-functionalized Fe₃O₄ particles was synthesized; power generation, removal of chemical oxygen demand (COD) and NH₄⁺-N were evaluated with cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), cell voltage and treatment efficiency. Results showed that the amino-Fe₃O₄ coated anode led to higher NH₄⁺-N removal efficiency of 97.7 % than the Fe₃O₄ coated anode of 48.9 %. Moreover, the maximum power density of the amino-Fe₃O₄ anode is 208.67 mW/m², 35.1 % higher than that of the Fe₃O₄ anode. This finding was explained by the presence of protonated amino groups NH₄⁺ that favored the attachment of negatively charged bacteria. Amino-functionalization of the anode promotes a promising, novel technology to treat wastewater while producing electricity.

可以使用微生物燃料电池（MFCs）从废水中产生生物电，而微生物燃料电池在电化学和生化反应过程中会产生电能，但是废水MFCs的实际应用受到限制。提出了一种自给自足的微生物电强化废水处理方法，可同时产生微生物能和提高污染物去除率。合成了涂覆有氨基官能化的Fe ₃ O ₄颗粒的碳毡；利用循环伏安法（CV），电化学阻抗谱（EIS），电池电压和处理效率对发电，化学需氧量（COD）和NH ₄ ⁺ -N的去除进行了评估。结果表明，氨基Fe ₃ O ₄涂层阳极导致的NH ₄ ⁺ -N去除效率比Fe ₃ O ₄涂层阳极的48.9％更高，为97.7 ％。此外，氨基-Fe ₃ O ₄阳极的最大功率密度为208.67mW / m ²，比Fe ₃ O ₄阳极的最大功率密度高35.1％。质子化的氨基NH ₄ ^+的存在有利于带负电细菌的附着，从而解释了这一发现。阳极的氨基官能化促进了一种有前途的新颖技术，可在发电的同时处理废水。