Role of Graphene-Silver Nanocomposite as Anode to Boost Single-Chamber Microbial Fuel Cell Performance

Microbial fuel cell (MFC) is one of the emerging green technology in the modern research domain. Although there has been significant progress in this field over the last ten years, electron transportation and generation remain challenges that need to be addressed. To address these challenges, we concentrated on producing biomass waste derived graphene oxide (GO) and composites with silver (Ag) nanoparticle-based electrodes for MFC. The research investigated the fruit as an organic supply for the operation to boost electron production. Within one month of operation, the GO reached 1.51 mW/m 2 power density, whereas the GO-Ag anode provided 4.37 mW/m 2 . In both instances, the cell design point was determined to be 1000 ῼ, and internal resistance was determined to be lower than external resistance. The current research uses metal-wastewater as an inoculation source. The GO anode removed 74.99% (Pb), 75.99% (Cd), and 85% (Cr), while the GO-Ag removed 89.79% (Pb), 86.23% (Cd), and 88.12% (Cr) within one month of operation. All electrochemical and biological analyses revealed that biomass-derived anodes operate productively. Finally, the mechanism, the modern challenge, and future suggestions are all included.