Effect of Polypyrrole-Fe 3 O 4 Composite Modified Anode and Its Electrodeposition Time on the Performance of Microbial Fuel Cells

Liping Fan and Yaobin Xi
Additional contact information
Liping Fan: College of Information Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
Yaobin Xi: College of Environment and Safety Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China

Energies, 2021, vol. 14, issue 9, 1-10

Abstract: Anode modification is a useful method to increase the performance of microbial fuel cells (MFCs). By using the electrochemical deposition method, Fe 3 O 4 and polypyrrole (PPy) were polymerized on a carbon felt anode to prepare Fe 3 O 4 -PPy composite modified anodes. In order to ascertain the effect of electrodeposition time on characteristics of the modified electrode, the preparation time of the modified electrode was adjusted. The modified anodes were used in MFCs, and their performances were evaluated by analyzing the electricity generation performance and sewage treatment capacity of MFCs. Experimental results indicated that the Fe 3 O 4 -PPy composite modified anodes could enhance the power production capacity and sewage treatment efficiency of MFC effectively. In particular, when the deposition time was 50 min, the modified anode could significantly improve the MFC performance. In this case, the steady-state current density of MFC increased by 59.5% in comparison with that of the MFC with an unmodified carbon felt anode, and the chemical oxygen demand (COD) removal rate was 95.3% higher than that of the unmodified anode. Therefore, the Fe 3 O 4 -PPy composite is an effective material for electrode modification, and a good anode modification effect can be obtained by selecting the appropriate electrodeposition time.

Keywords: microbial fuel cell; anode modification; polypyrrole; Fe 3 O 4 (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/9/2461/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/9/2461/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:9:p:2461-:d:543484

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().