Deciphering characteristics of bicyclic aromatics - mediators for reductive decolorization and bioelectricity generation

作者：Xu, Bin; Chen, Bor-Yann^*; Hsueh, Chung-Chuan; Qin, Lian-Jie; Chang, Chang-Tang

来源：Bioresource Technology, 2014, 163: 280-286.

DOI：10.1016/j.biortech.2014.04.031

• Energy recycling
• Decolorized intermediates
• Microbial fuel cell
• Electron shuttles

This first-attempt study quantitatively assessed electron-mediating characteristics of bicyclic aromatics 1-amino-2-naphthol, 4-amino-1-naphthol (i.e., decolorized intermediates of azo dyes - orange I and II) for color removal and power generation in MFCs. According to cyclic-voltammetric profiles, the presence of reduction and oxidation peak potentials clearly suggested a crucial role of these intermediates as electron-shuttling mediators. Shake-flask cultures also showed that appropriate accumulation of 1A2N, 4A1N apparently enhanced color-removal efficiencies of bacterial decolorization. This study clearly suggested that suitable supplementation of electrochemically active electron shuttle(s) to dye-bearing MFCs is a promising strategy to stimulate reductive decolorization and bioelectricity generation.

• 出版日期2014-7
• 单位烟台大学