School of Environmental Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, PR China.
School of Environmental Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, PR China.
Bioresour Technol. 2018 Feb;249:567-573. doi: 10.1016/j.biortech.2017.09.086. Epub 2017 Oct 16.
Microbial fuel cells (MFCs) are promising biotechnologies tool to harvest electricity by decomposing organic matter in waste water, and the anode material is a critical factor in determining the performance of MFCs. In this study, chestnut shell is proposed as a novel anode material with mesoporous and microporous structure prepared via a simple carbonization procedure followed by an activation process. The chemical activation process successfully modified the macroporous structure, created more mesoporous and microporous structure and decreased the O-content and pyridinic/pyrrolic N groups on the biomass anode, which were beneficial for improving charge transfer efficiency between the anode surface and microbial biofilm. The MFC with activated biomass anode achieved a maximum power density (23.6 W m) 2.3 times higher than carbon cloth anode (10.4 W m). This study introduces a promising and feasible strategy for the fabrication of high performance anodes for MFCs derived from cost-effective, sustainable natural materials.
微生物燃料电池（MFC）是一种很有前途的生物技术工具，可以通过分解废水中的有机物来获取电能，而阳极材料是决定 MFC 性能的关键因素。在这项研究中，提出了一种新型的阳极材料，即通过简单的碳化和活化过程制备的具有中孔和微孔结构的山核桃壳。化学活化过程成功地修饰了大孔结构，创造了更多的中孔和微孔结构，降低了生物质阳极的 O 含量和吡啶/吡咯 N 基团，有利于提高阳极表面和微生物生物膜之间的电荷转移效率。使用活化生物质阳极的 MFC 的最大功率密度（23.6 W m 2 ）比碳布阳极（10.4 W m 2 ）高 2.3 倍。本研究为利用具有成本效益和可持续性的天然材料制备高性能 MFC 阳极提供了一种有前途且可行的策略。
