Jiang Qingqing, Xing Defeng, Zhang Lu, Sun Rui, Zhang Jian, Zhong Yingjuan, Feng Yujie, Ren Nanqi
State Key Lab of Urban Water Resource and Environment (SKLUWRE), School of Municipal and Environmental Engineering, Harbin Institute of Technology, 2nd Campus of HIT Box 2614 No. 73 Huanghe Road Harbin 150090 China
Shenzhen Greenster Environmental Technology Co., Ltd. Shenzhen 518055 China.
RSC Adv. 2018 Aug 10;8(50):28487-28495. doi: 10.1039/c8ra01207e. eCollection 2018 Aug 7.
A microbial fuel cell with an indium tin oxide (ITO) coated glass anode was used to study the mechanism of electricity generation and electron transfer of electrochemically active microbes (EAMs). A simple method of ITO anode pretreatment (pickling) was developed to improve the performance of the microbial fuel cell. After proper treatment, ITO-glass anodes maintained their conductivity with a slight increase in resistance. Using this pickling pretreatment, the ITO-glass microbial fuel cell with an anode area of only 8.3 cm, was successfully initiated and obtained a stable voltage and power output of 418.8 mW m. The electrode material with pretreatment showed optimal performance for the study of EAMs. DNA was extracted from various parts of the reactor and the microbial communities were analyzed. The results indicated that the large proportion of methane-related microbes on the cathode of the MFC was one of the reasons for its high COD removal and low columbic efficiency. ITO glass is suitable as an anode material for the study of EAMs, and shows potential for practical application.
采用涂有氧化铟锡（ITO）的玻璃阳极微生物燃料电池，研究电化学活性微生物（EAM）的发电机制和电子转移。开发了一种简单的ITO阳极预处理方法（酸洗），以提高微生物燃料电池的性能。经过适当处理后，ITO玻璃阳极保持其导电性，电阻略有增加。采用这种酸洗预处理方法，阳极面积仅为8.3平方厘米的ITO玻璃微生物燃料电池成功启动，获得了418.8毫瓦/平方米的稳定电压和功率输出。经过预处理的电极材料在EAM研究中表现出最佳性能。从反应器的各个部分提取DNA，并分析微生物群落。结果表明，MFC阴极上与甲烷相关的微生物比例较高是其COD去除率高和库仑效率低的原因之一。ITO玻璃适合作为EAM研究的阳极材料，并具有实际应用潜力。
