Application of biomimetically synthesized silver nanoparticles as cathode catalyst, quorum-quencher, and anti-biofouling agent for the performance boosting of microbial fuel cell.

Autor: Das S; PK Sinha Centre for Bioenergy & Renewables, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India., Tripathi A; Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India., Ghangrekar MM; PK Sinha Centre for Bioenergy & Renewables, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India; Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India. Electronic address: ghangrekar@civil.iitkgp.ac.in.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2024 Mar; Vol. 352, pp. 141392. Date of Electronic Publication: 2024 Feb 05.
DOI: 10.1016/j.chemosphere.2024.141392
Abstrakt: A microbial fuel cell (MFC) is a cutting-edge bioelectrochemical technology, which demonstrates power and other valuables recovery while treating wastewater by cultivating electroactive microbes. However, rampant biofilm growth over the cathode surface of air cathode MFC exacerbates the oxidation-reduction reaction rate, triggering a dip in the overall performance of MFC. In this sense, biosynthesized silver nanoparticles (AgNPs) have garnered a plethora of potential applications as cathode catalysts as well as anti-biofouling agent for MFCs without harming nature. The MFC equipped with the mixture of aloe vera and algae (@5 mg/cm 2 ) synthesized AgNPs on cathode generated a maximum power density of 66.5 mW/m 2 and chemical oxygen demand removal efficiency of 85.2%, which was ca. 5.6 times and 1.2 times higher compared to control MFC operated without any catalyst on cathode. Thus, this investigation paves the way for using eco-amiable, low-cost bioderived organic compounds to assist MFC in achieving high power output and other valuables with minimal reliance on chemicals.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: