Nanostructured Polypyrrole as Cathode Catalyst for Fe (III) Removal in Single Chamber Microbial Fuel Cell

Anappara, Sumisha; Haribabu, K.

doi:10.1007/s12257-019-0288-y

Cited by 15 publications

(3 citation statements)

References 28 publications

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“…The cell gives a closed-circuit voltage (CCV) when it is connected to an external circuit, and the maximum stable voltage of 0.759 V was obtained with 50 ppm Fe, and hence this concentration can be considered as the maximum tolerable concentration (MTC) of Fe 3+ for the biocatalyst. In our previous study [17], the CCV of 0.599 V was obtained in an SCMFC with Ppy as both the anode and cathode catalysts for 50 ppm Fe 3+ removal. An ultimate biofilm thickness stabilizes the cell voltage for several days and can be seen in Fig.…”

Section: Effect Of Ion Concentrations On the Voltage Outputmentioning

confidence: 99%

Energy Generation and Iron Removal in Batch and Continuous Single‐Chamber Microbial Fuel Cells

Anappara

Haribabu

2020

Chem Eng & Technol

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Energy generation was studied in a membraneless single‐chamber microbial fuel cell (SCMFC) with batch and continuous systems, using iron(III) as electron acceptor at the cathode and Shewanella putrefaciens as the biocatalyst. A maximum stable voltage of 0.769 V was achieved at a maximum tolerable concentration (MTC) of 50 ppm Fe for the batch mode of operation. A metal removal efficiency of 91.1 % and a total organic carbon removal of 85.5 % were obtained at the MTC. Also, the effects of various hydraulic retention times (HRT) were tested for the continuous process. A maximum voltage of 0.81 V was observed during operation for 13 h of HRT, along with a substrate degradation of 91.8 % and an iron removal of 86.4 %.

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Section: Effect Of Ion Concentrations On the Voltage Outputmentioning

confidence: 99%

Energy Generation and Iron Removal in Batch and Continuous Single‐Chamber Microbial Fuel Cells

Anappara

Haribabu

2020

Chem Eng & Technol

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“…Polypyrrole was also used as a component of the inorganic cathode. Sumisha and Haribabu modified carbon cloth using polypyrrole nanoparticles for the cathode in a single-chamber membrane-less microbial fuel cell for bioenergy production and iron removal [ 237 ]. And in [ 238 ], MFCs employing the Ni–NiO/PPy–rGO nanohybrid catalyst exhibited a maximum current density of 2134.56 mA m −2 and a maximum power density of ~678.79 ± 34 mW m −2 , which is 25–30 percent higher than when using a commercial Pt/C catalyst.…”

Section: Bfcs Based On Conductive Polymersmentioning

confidence: 99%

Conductive Polymers and Their Nanocomposites: Application Features in Biosensors and Biofuel Cells

Kuznetsova,

Arlyapov,

Plekhanova

et al. 2023

Polymers

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Conductive polymers and their composites are excellent materials for coupling biological materials and electrodes in bioelectrochemical systems. It is assumed that their relevance and introduction to the field of bioelectrochemical devices will only grow due to their tunable conductivity, easy modification, and biocompatibility. This review analyzes the main trends and trends in the development of the methodology for the application of conductive polymers and their use in biosensors and biofuel elements, as well as describes their future prospects. Approaches to the synthesis of such materials and the peculiarities of obtaining their nanocomposites are presented. Special emphasis is placed on the features of the interfaces of such materials with biological objects.

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“…For instance, Shewanella oneidensis does not grow on bare gold electrode [78]. Nanostructured materials such as metal and metal oxide nanoparticles (NPs), carbon fibers, activated carbon, graphene, carbon nanotubes (CNTs), and fullerene, can provide enhancements of the performance of bioelectrodes [74], [75], [79]- [81]. Indeed, integration of these nanomaterials offers a large surface area for bacterial immobilization and improves the electron transfer efficiency [82], [83].…”

Section: Yearmentioning

confidence: 99%

Recent Advances on Electrochemical Sensors Based on Electroactive Bacterial Systems for Toxicant Monitoring: A Minireview

Haddour

Azri

2022

Electroanalysis

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In recent years, there have been advancements in the development of bacterial electrochemical sensors for toxicity monitoring, especially through utilization of electroactive bacteria. Accordingly, this mini review summarizes the recent advances in the design of bacterialbased electrochemical sensors with a specific discussion of main methodologies used for preparation of bioelectrodes based on electroactive bacteria. Additionally, current trends in the design of efficient and high performing bacterial electrochemical sensors for toxicity monitoring are presented. An overview of the most relevant findings and challenges of this technology for practical are provided and might serve as a general outlook for planning further research.

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Nanostructured Polypyrrole as Cathode Catalyst for Fe (III) Removal in Single Chamber Microbial Fuel Cell

Cited by 15 publications

References 28 publications

Energy Generation and Iron Removal in Batch and Continuous Single‐Chamber Microbial Fuel Cells

Energy Generation and Iron Removal in Batch and Continuous Single‐Chamber Microbial Fuel Cells

Conductive Polymers and Their Nanocomposites: Application Features in Biosensors and Biofuel Cells

Recent Advances on Electrochemical Sensors Based on Electroactive Bacterial Systems for Toxicant Monitoring: A Minireview

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