期刊
BIORESOURCE TECHNOLOGY
卷 270, 期 -, 页码 11-19出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.08.092
关键词
Microbial fuel cell; Biogenic gold nanoparticles; Anode modification; Electricity generation; Microbial community
资金
- National Natural Science Foundation of China, China [21808108, 21676142]
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China, China [18KJB610007]
- National Key Technology Support Program of China, China [2014BAC33B00]
- National Key Research and Development Program of China, China [2016YFE0112800]
- Key Science and Technology Project of Jiangsu Province, China [BE2016389]
In this study, carbon cloth anodes were modified using biogenic gold nanoparticles (BioAu) and nanohybrids of multi-walled carbon nanotubes blended with BioAu (BioAu/MWCNT) to improve the performance of microbial fuel cells (MFCs). The results demonstrated that BioAu modification significantly enhanced the electricity generation of MFCs. In particular, BioAu/MWCNT nanohybrids as the modifier displayed a better performance. The MFC with the BioAu/MWCNT electrode had the shortest start-up time (6.74 d) and highest power density (178.34 +/- 4.79 mW/m(2)), which were 141.69% shorter and 56.11% higher compared with those of the unmodified control, respectively. These improvements were attributed to the excellent electrocatalytic activity and strong affinity towards exoelectrogens of the BioAu/MWCNT nanohybrids on the electrode. High throughput sequencing analysis indicated that the relative abundance of electroactive bacteria in the biofilm community, mostly from the classes of Gammaproteobacteria and Negativicutes, increased after anode modification.
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