title: Immobilization of Anodophilic Biofilms for Use in Aerotolerant Bioanodes of Microbial Fuel Cells.
abstract: The anodophilic bacteria in the anodes of microbial fuel cells (MFCs) used to catalyze carbon oxidation are anaerobes and require anaerobic conditions; their bioelectrocatalytic activity will be greatly suppressed upon direct exposure to O2. In this study, an aerotolerant bioanode was fabricated for the first time by immobilization of anodophilic bacteria for use in MFCs operating under aerobic conditions. The fabrication of the aerotolerant bioanode was realized through the electrochemically induced penetration and propagation of anodophilic bacteria in a three-dimensional hydrogel scaffold. Under the protection of the hydrogel scaffold, the anodophilic bacteria exhibited excellent bioelectrocatalytic activity under continuous O2aeration and delivered a current density comparable to that under anaerobic conditions. The MFC equipped with the aerotolerant bioanode has the potential to be applied to traditionally aerobic wastewater treatment (WWT) technology. This study offers new insight into the application of MFCs for WWT.
authors.affiliation: Department of Chemistry and Chemical Engineering, Jiangxi Normal University , Ziyang Road 99th, 330022 Nanchang, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.affiliation: Department of Chemistry and Chemical Engineering, Jiangxi Normal University , Ziyang Road 99th, 330022 Nanchang, China.
authors.forename: Kang
authors.initials: K
authors.lastname: Lv
authors.affiliation: Department of Chemistry and Chemical Engineering, Jiangxi Normal University , Ziyang Road 99th, 330022 Nanchang, China.
authors.forename: Shiqiang
authors.initials: S
authors.lastname: Wu
authors.affiliation: Department of Chemistry and Chemical Engineering, Jiangxi Normal University , Ziyang Road 99th, 330022 Nanchang, China.
authors.forename: Shuiliang
authors.identifier: http://orcid.org/0000-0002-1657-1874
authors.initials: S
authors.lastname: Chen
keywords: aerotolerant bioanode; anodophilic biofilm; hydrogel scaffold; immobilization; microbial fuel cell