Silver grass-derived activated carbon with coexisting micro-, meso- and macropores as excellent bioanodes for microbial colonization and power generation in sustainable microbial fuel cells.

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ID: 77285
2019
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Abstract
In this study, highly biocompatible three-dimensional hierarchically porous activated carbon from the low-cost silver grass (Miscanthus sacchariflorus) has been fabricated through a facile carbonization approach and tested it as bioanode in microbial fuel cell (MFC) using Escherichia coli as biocatalyst. This silver grass-derived activated carbon (SGAC) exhibited an unprecedented specific surface area of 3027 m g with the coexistence of several micro-, meso-, and macropores. The synergistic effect from pore structure (macropores - hosting E. coli to form biofilm and facilitates internal mass transfer; mesopores - favors fast electron transfer; and micropores - promotes nutrient transport to the biofilm) with very high surface area facilitates excellent extracellular electron transfer (EET) between the anode and biofilm which resulted in higher power output of 963 mW cm. Based on superior biocompatibility, low cost, environment-friendliness, and facile fabrication, the proposed SGAC bioanode could have a great potential for high-performance and cost-effective sustainable MFCs.
Reference Key
rethinasabapathy2019silverbioresource Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Rethinasabapathy, Muruganantham;Lee, Jeong Han;Roh, Kwang Chul;Kang, Sung-Min;Oh, Seo Yeong;Park, Bumjun;Lee, Go-Woon;Cha, Young Lok;Huh, Yun Suk;
Journal Bioresource technology
Year 2019
DOI
S0960-8524(19)31875-9
URL
Keywords
Escherichia coli microbial fuel cell bioanode miscanthus sacchariflorus silver grass

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