10.6084/m9.figshare.5840733.v1
Meng Yang
Meng
Yang
Yuezhi Zhong
Yuezhi
Zhong
Baogang Zhang
Baogang
Zhang
Jiaxin Shi
Jiaxin
Shi
Xueyang Huang
Xueyang
Huang
Yi Xing
Yi
Xing
Lin Su
Lin
Su
Huipeng Liu
Huipeng
Liu
Alistair G.L. Borthwick
Alistair G.L.
Borthwick
Enhanced sulfide removal and bioelectricity generation in microbial fuel cells with anodes modified by vertically oriented nanosheets
Taylor & Francis Group
2018
Sulfide
nano-sheets
microbial fuel cells
microbial community
carbon-fiber-felt
2018-01-31 08:22:09
Journal contribution
https://tandf.figshare.com/articles/journal_contribution/Enhanced_sulfide_removal_and_bioelectricity_generation_in_microbial_fuel_cells_with_anodes_modified_by_vertically_oriented_nanosheets/5840733
<p>Anode materials and structures are of critical importance for microbial fuel cells (MFCs) recovering energy from toxic substrates. Carbon-fiber-felt anodes modified by layers of vertically oriented TiO<sub>2</sub> and Fe<sub>2</sub>O<sub>3</sub> nanosheets were applied in the present study. Enhanced sulfide removal efficiencies (both over 90%) were obtained after a 48-h operation, with maximum power densities improved by 1.53 and 1.36 folds compared with MFCs with raw carbon-fiber-felt anode. The modified anodes provided more active sites for microbial adhesion with increasing biomass densities. High-throughput 16S rRNA gene sequencing analysis also indicated the increase in microbial diversities. Bacteroidetes responsible for bioelectricity generation with <i>Thiobacillus</i> and <i>Spirochaeta</i> dominating sulfide removal were found in the MFCs with the modified anodes, with less anaerobic fermentative bacteria as Firmicutes appeared. This indicates that the proposed materials are competitive for applications of MFCs generating bioelectricity from toxic sulfide.</p>