Modification of Graphite Sheet Anode with Iron (II, III) Oxide-Carbon Dots for Enhancing the Performance of Microbial Fuel Cell

Babita Tripathi; Soumya Pandit; Aparna Sharma; Sunil Chauhan; Abhilasha Singh Mathuriya; Pritam Kumar Dikshit; Piyush Kumar Gupta; Ram Chandra Singh; Mohit Sahni; Kumud Pant; Satyendra Singh

doi:10.3390/catal12091040

Modification of Graphite Sheet Anode with Iron (II, III) Oxide-Carbon Dots for Enhancing the Performance of Microbial Fuel Cell

Babita Tripathi, Soumya Pandit, Aparna Sharma, Sunil Chauhan, Abhilasha Singh Mathuriya, Pritam Kumar Dikshit, Piyush Kumar Gupta, Ram Chandra Singh, Mohit Sahni, Kumud Pant, Satyendra Singh

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

The present study explores the use of carbon dots coated with Iron (II, III) oxide (Fe₃O₄) for its application as an anode in microbial fuel cells (MFC). Fe₃O₄@PSA-C was synthesized using a hydrothermal-assisted probe sonication method. Nanoparticles were characterized with XRD, SEM, FTIR, and RAMAN Spectroscopy. Different concentrations of Fe₃O₄- carbon dots (0.25, 0.5, 0.75, and 1 mg/cm²) were coated onto the graphite sheets (Fe₃O₄@PSA-C), and their performance in MFC was evaluated. Cyclic voltammetry (CV) of Fe₃O₄@PSA-C (1 mg/cm²) modified anode indicated oxidation peaks at −0.26 mV and +0.16 mV, respectively, with peak currents of 7.7 mA and 8.1 mA. The fluxes of these anodes were much higher than those of other low-concentration Fe₃O₄@PSA-C modified anodes and the bare graphite sheet anode. The maximum power density (Pmax) was observed in MFC with a 1 mg/cm² concentration of Fe₃O₄@PSA-C was 440.01 mW/m², 1.54 times higher than MFCs using bare graphite sheet anode (285.01 mW/m²). The elevated interaction area of carbon dots permits pervasive Fe₃O₄ crystallization providing enhanced cell attachment capability of the anode, boosting the biocompatibility of Fe₃O₄@PSA-C. This significantly improved the performance of the MFC, making Fe₃O₄@PSA-C modified graphite sheets a good choice as an anode for its application in MFC.

Original language	English
Article number	1040
Journal	Catalysts
Volume	12
Issue number	9
DOIs	https://doi.org/10.3390/catal12091040
State	Published - 1 Sep 2022
Externally published	Yes

Keywords

bioanode
biocompatibility
carbon dots
hydrothermal assisted probe sonication
internal resistance
iron (ii, iii) oxide
microbial fuel cell
power density

ASJC Scopus subject areas

Catalysis
General Environmental Science
Physical and Theoretical Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3390/catal12091040

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@article{d132f2fcc89e4a29bbadb527a1646d12,

title = "Modification of Graphite Sheet Anode with Iron (II, III) Oxide-Carbon Dots for Enhancing the Performance of Microbial Fuel Cell",

abstract = "The present study explores the use of carbon dots coated with Iron (II, III) oxide (Fe3O4) for its application as an anode in microbial fuel cells (MFC). Fe3O4@PSA-C was synthesized using a hydrothermal-assisted probe sonication method. Nanoparticles were characterized with XRD, SEM, FTIR, and RAMAN Spectroscopy. Different concentrations of Fe3O4- carbon dots (0.25, 0.5, 0.75, and 1 mg/cm2) were coated onto the graphite sheets (Fe3O4@PSA-C), and their performance in MFC was evaluated. Cyclic voltammetry (CV) of Fe3O4@PSA-C (1 mg/cm2) modified anode indicated oxidation peaks at −0.26 mV and +0.16 mV, respectively, with peak currents of 7.7 mA and 8.1 mA. The fluxes of these anodes were much higher than those of other low-concentration Fe3O4@PSA-C modified anodes and the bare graphite sheet anode. The maximum power density (Pmax) was observed in MFC with a 1 mg/cm2 concentration of Fe3O4@PSA-C was 440.01 mW/m2, 1.54 times higher than MFCs using bare graphite sheet anode (285.01 mW/m2). The elevated interaction area of carbon dots permits pervasive Fe3O4 crystallization providing enhanced cell attachment capability of the anode, boosting the biocompatibility of Fe3O4@PSA-C. This significantly improved the performance of the MFC, making Fe3O4@PSA-C modified graphite sheets a good choice as an anode for its application in MFC.",

keywords = "bioanode, biocompatibility, carbon dots, hydrothermal assisted probe sonication, internal resistance, iron (ii, iii) oxide, microbial fuel cell, power density",

author = "Babita Tripathi and Soumya Pandit and Aparna Sharma and Sunil Chauhan and Mathuriya, {Abhilasha Singh} and Dikshit, {Pritam Kumar} and Gupta, {Piyush Kumar} and Singh, {Ram Chandra} and Mohit Sahni and Kumud Pant and Satyendra Singh",

note = "Publisher Copyright: {\textcopyright} 2022 by the authors.",

year = "2022",

month = sep,

day = "1",

doi = "10.3390/catal12091040",

language = "English",

volume = "12",

journal = "Catalysts",

issn = "2073-4344",

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T1 - Modification of Graphite Sheet Anode with Iron (II, III) Oxide-Carbon Dots for Enhancing the Performance of Microbial Fuel Cell

AU - Tripathi, Babita

AU - Pandit, Soumya

AU - Sharma, Aparna

AU - Chauhan, Sunil

AU - Mathuriya, Abhilasha Singh

AU - Dikshit, Pritam Kumar

AU - Gupta, Piyush Kumar

AU - Singh, Ram Chandra

AU - Sahni, Mohit

AU - Pant, Kumud

AU - Singh, Satyendra

PY - 2022/9/1

Y1 - 2022/9/1

N2 - The present study explores the use of carbon dots coated with Iron (II, III) oxide (Fe3O4) for its application as an anode in microbial fuel cells (MFC). Fe3O4@PSA-C was synthesized using a hydrothermal-assisted probe sonication method. Nanoparticles were characterized with XRD, SEM, FTIR, and RAMAN Spectroscopy. Different concentrations of Fe3O4- carbon dots (0.25, 0.5, 0.75, and 1 mg/cm2) were coated onto the graphite sheets (Fe3O4@PSA-C), and their performance in MFC was evaluated. Cyclic voltammetry (CV) of Fe3O4@PSA-C (1 mg/cm2) modified anode indicated oxidation peaks at −0.26 mV and +0.16 mV, respectively, with peak currents of 7.7 mA and 8.1 mA. The fluxes of these anodes were much higher than those of other low-concentration Fe3O4@PSA-C modified anodes and the bare graphite sheet anode. The maximum power density (Pmax) was observed in MFC with a 1 mg/cm2 concentration of Fe3O4@PSA-C was 440.01 mW/m2, 1.54 times higher than MFCs using bare graphite sheet anode (285.01 mW/m2). The elevated interaction area of carbon dots permits pervasive Fe3O4 crystallization providing enhanced cell attachment capability of the anode, boosting the biocompatibility of Fe3O4@PSA-C. This significantly improved the performance of the MFC, making Fe3O4@PSA-C modified graphite sheets a good choice as an anode for its application in MFC.

AB - The present study explores the use of carbon dots coated with Iron (II, III) oxide (Fe3O4) for its application as an anode in microbial fuel cells (MFC). Fe3O4@PSA-C was synthesized using a hydrothermal-assisted probe sonication method. Nanoparticles were characterized with XRD, SEM, FTIR, and RAMAN Spectroscopy. Different concentrations of Fe3O4- carbon dots (0.25, 0.5, 0.75, and 1 mg/cm2) were coated onto the graphite sheets (Fe3O4@PSA-C), and their performance in MFC was evaluated. Cyclic voltammetry (CV) of Fe3O4@PSA-C (1 mg/cm2) modified anode indicated oxidation peaks at −0.26 mV and +0.16 mV, respectively, with peak currents of 7.7 mA and 8.1 mA. The fluxes of these anodes were much higher than those of other low-concentration Fe3O4@PSA-C modified anodes and the bare graphite sheet anode. The maximum power density (Pmax) was observed in MFC with a 1 mg/cm2 concentration of Fe3O4@PSA-C was 440.01 mW/m2, 1.54 times higher than MFCs using bare graphite sheet anode (285.01 mW/m2). The elevated interaction area of carbon dots permits pervasive Fe3O4 crystallization providing enhanced cell attachment capability of the anode, boosting the biocompatibility of Fe3O4@PSA-C. This significantly improved the performance of the MFC, making Fe3O4@PSA-C modified graphite sheets a good choice as an anode for its application in MFC.

KW - bioanode

KW - biocompatibility

KW - carbon dots

KW - hydrothermal assisted probe sonication

KW - internal resistance

KW - iron (ii, iii) oxide

KW - microbial fuel cell

KW - power density

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U2 - 10.3390/catal12091040

DO - 10.3390/catal12091040

M3 - Article

AN - SCOPUS:85138667737

SN - 2073-4344

VL - 12

JO - Catalysts

JF - Catalysts

IS - 9

M1 - 1040

ER -

Modification of Graphite Sheet Anode with Iron (II, III) Oxide-Carbon Dots for Enhancing the Performance of Microbial Fuel Cell

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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