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Enhanced sulfide removal and bioelectricity generation in microbial fuel cells with anodes modified by vertically oriented nanosheets.
Environ Technol. 2019 Jun; 40(14):1770-1779.ET

Abstract

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 TiO2 and Fe2O3 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 Thiobacillus and Spirochaeta 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.

Authors+Show Affiliations

a School of Water Resources and Environment , MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences , Beijing , People's Republic of China.a School of Water Resources and Environment , MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences , Beijing , People's Republic of China.a School of Water Resources and Environment , MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences , Beijing , People's Republic of China.a School of Water Resources and Environment , MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences , Beijing , People's Republic of China.a School of Water Resources and Environment , MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences , Beijing , People's Republic of China.b School of Energy and Environmental Engineering , University of Sciences and Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants , Beijing , People's Republic of China.c State Key Laboratory of Bioelectronics, Southeast University , Nanjing , People's Republic of China.a School of Water Resources and Environment , MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences , Beijing , People's Republic of China.d School of Engineering , The University of Edinburgh , Edinburgh , UK.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29345191

Citation

Yang, Meng, et al. "Enhanced Sulfide Removal and Bioelectricity Generation in Microbial Fuel Cells With Anodes Modified By Vertically Oriented Nanosheets." Environmental Technology, vol. 40, no. 14, 2019, pp. 1770-1779.
Yang M, Zhong Y, Zhang B, et al. Enhanced sulfide removal and bioelectricity generation in microbial fuel cells with anodes modified by vertically oriented nanosheets. Environ Technol. 2019;40(14):1770-1779.
Yang, M., Zhong, Y., Zhang, B., Shi, J., Huang, X., Xing, Y., Su, L., Liu, H., & Borthwick, A. G. L. (2019). Enhanced sulfide removal and bioelectricity generation in microbial fuel cells with anodes modified by vertically oriented nanosheets. Environmental Technology, 40(14), 1770-1779. https://doi.org/10.1080/09593330.2018.1429496
Yang M, et al. Enhanced Sulfide Removal and Bioelectricity Generation in Microbial Fuel Cells With Anodes Modified By Vertically Oriented Nanosheets. Environ Technol. 2019;40(14):1770-1779. PubMed PMID: 29345191.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Enhanced sulfide removal and bioelectricity generation in microbial fuel cells with anodes modified by vertically oriented nanosheets. AU - Yang,Meng, AU - Zhong,Yuezhi, AU - Zhang,Baogang, AU - Shi,Jiaxin, AU - Huang,Xueyang, AU - Xing,Yi, AU - Su,Lin, AU - Liu,Huipeng, AU - Borthwick,Alistair G L, Y1 - 2018/01/31/ PY - 2018/1/19/pubmed PY - 2019/9/10/medline PY - 2018/1/19/entrez KW - Sulfide KW - carbon-fiber-felt KW - microbial community KW - microbial fuel cells KW - nano-sheets SP - 1770 EP - 1779 JF - Environmental technology JO - Environ Technol VL - 40 IS - 14 N2 - 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 TiO2 and Fe2O3 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 Thiobacillus and Spirochaeta 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. SN - 1479-487X UR - https://www.unboundmedicine.com/medline/citation/29345191/Enhanced_sulfide_removal_and_bioelectricity_generation_in_microbial_fuel_cells_with_anodes_modified_by_vertically_oriented_nanosheets L2 - http://www.tandfonline.com/doi/full/10.1080/09593330.2018.1429496 DB - PRIME DP - Unbound Medicine ER -