The Performance of a Modified Anode Using a Combination of Kaolin and Graphite Nanoparticles in Microbial Fuel Cells

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F24%3A43972857" target="_blank" >RIV/49777513:23640/24:43972857 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3390/microorganisms12030604" target="_blank" >https://doi.org/10.3390/microorganisms12030604</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/microorganisms12030604" target="_blank" >10.3390/microorganisms12030604</a>

Result language

angličtina

Original language name

The Performance of a Modified Anode Using a Combination of Kaolin and Graphite Nanoparticles in Microbial Fuel Cells

Original language description

The bacterial anode in microbial fuel cells was modified by increasing the biofilm&apos;s adhesion to the anode material using kaolin and graphite nanoparticles. The MFCs were inoculated with G. sulfurreducens, kaolin (12.5 g center dot L-1), and three different concentrations of graphite (0.25, 1.25, and 2.5 g center dot L-1). The modified anode with the graphite nanoparticles (1.25 g center dot L-1) showed the highest electroactivity and biofilm viability. A potential of 0.59, 0.45, and 0.23 V and a power density of 0.54 W center dot m-2, 0.3 W center dot m-2, and 0.2 W center dot m-2 were obtained by the MFCs based on kaolin-graphite nanoparticles, kaolin, and bare anodes, respectively. The kaolin-graphite anode exhibited the highest Coulombic efficiency (21%) compared with the kaolin (17%) and the bare (14%) anodes. Scanning electron microscopy and confocal laser scanning microscopy revealed a large amount of biofilm on the kaolin-graphite anode. We assume that the graphite nanoparticles increased the charge transfer between the bacteria that are in the biofilm and are far from the anode material. The addition of kaolin and graphite nanoparticles increased the attachment of several bacteria. Thus, for MFCs that are fed with wastewater, the modified anode should be prepared with a pure culture of G. sulfurreducens before adding wastewater that includes non-exoelectrogenic bacteria.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Microorganisms

ISSN

2076-2607

e-ISSN

2076-2607

Volume of the periodical

12

Issue of the periodical within the volume

3

Country of publishing house

CH - SWITZERLAND

Number of pages

17

Pages from-to

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UT code for WoS article

001192710100001

EID of the result in the Scopus database

2-s2.0-85189102200