Impact of modified electrodes on boosting power density of microbial fuel cell for effective domestic wastewater treatment:A case study of Tehran

Fatemeh Nourbakhsh; Mohammad Pazouki; Mohsen Mohsennia

Volume 45 Issue 7

Jul. 2017

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Fatemeh Nourbakhsh, Mohammad Pazouki, Mohsen Mohsennia. Impact of modified electrodes on boosting power density of microbial fuel cell for effective domestic wastewater treatment:A case study of Tehran[J]. Journal of Fuel Chemistry and Technology, 2017, 45(7): 871-879.

Citation:

Fatemeh Nourbakhsh, Mohammad Pazouki, Mohsen Mohsennia. Impact of modified electrodes on boosting power density of microbial fuel cell for effective domestic wastewater treatment:A case study of Tehran[J]. Journal of Fuel Chemistry and Technology, 2017, 45(7): 871-879.

Citation:

Fatemeh Nourbakhsh, Mohammad Pazouki, Mohsen Mohsennia. Impact of modified electrodes on boosting power density of microbial fuel cell for effective domestic wastewater treatment:A case study of Tehran[J]. Journal of Fuel Chemistry and Technology, 2017, 45(7): 871-879.

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Impact of modified electrodes on boosting power density of microbial fuel cell for effective domestic wastewater treatment:A case study of Tehran

1.
Department of Chemistry, University of Kashan, Ghotb-ravandi Blvd, Kashan 8731753153, Iran
2.
Department of Energy, Institute of Materials and Energy(MERC), Meshkin-Dasht, Karaj 31787-316, Iran
3.
Nanoscience and Nanotechnology Institution, University of Kashan, Ghotb-ravandi Blvd, Kashan 8731753153, Iran

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Corresponding author: Mohammad Pazouki, Tel: +98 26 3628 0040-9, Fax: +98 26 36201888, E-mail: mpazouki@merc.ac.ir, mpaz6@yahoo.com
Received Date: 2017-02-13
Rev Recd Date: 2017-05-17

Available Online: 2021-01-23

Publish Date: 2017-07-10

Abstract

Abstract

Utilizing microbial fuel cells (MFCs) is a promising technology for energy-efficient domestic wastewater treatment, but it still faces practical barriers such as low power generation. In this study, the LaMnO₃ perovskite-type oxide nanoparticles and nickel oxide/carbon nanotube/polyaniline (NCP) nanocomposite (the cathode and anode catalysts, respectively) have been prepared and used to enhance power density of MFC. The prepared La-based perovskite oxide catalysts were characterized by X-ray diffraction (XRD) and scanning electron microscopies (SEM). The electrocatalytic properties of the prepared catalysts were investigated through cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) and Tafel plot at ambient temperature. Results show the exchange current densities of LaMnO₃/carbon cloth cathode and NCP nanocomposite/carbon cloth anode were 1.68 and 7 times more compared to carbon cloth cathode, respectively. In comparison to the bare carbon cloth anode, the MFC with the modified electrodes shows 11 times more enhancement in power density output which according to electrochemical results, it can be due to the enhancement of the electron transfer capability. These cathodic and anodic catalysts were examined in batch and semi-continuous modes to provide conditions close to industrial conditions. This study suggests that utilizing these low cost catalysts has promising potential for wastewater treatment in MFC with high power generation and good COD removal efficiency.
- carbon nanotube,
- nickle oxide,
- La-based perovskite oxide,
- semi-continuous mode

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References(48)

References

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