V.C. Deivayanai, P. Thamarai, R. Kamalesh, Alan Shaji, P.R. Yaashikaa, A. Saravanan
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A sustainable approach on utilization of waste-derived biochar in microbial fuel cell toward net-zero coalition
The growing need for sustainable energy solutions has led to the convergence of waste management and renewable energy technologies. This study delves into the application of waste-derived biochar in microbial fuel cells (MFC) to achieve a net-zero carbon footprint, contributing to the global sustainability agenda. Biochar, a carbon-rich product attained from the pyrolysis of organic waste materials, is examined for its dual role in waste management strategies and as an effective electrode material in MFC. The inherent characteristics of the biochar, including the porosity, surface area and conductivity, enhance the overall performance of MFCs, as well as the microbial activity such as nutrient retention and pH buffering, and promote efficient electron transfer. The current review emphasizes biochar's different sources, characteristics, and synthesis techniques. This review also discusses the application of biochar in MFC as anode and cathode, followed by its utilisation in soil amendment and bioelectricity generation. It also reviews the relationship between the economic analysis and the utilisation of biochar as electrode materials. Regardless of the synthesis techniques and biochar application, the limitations and future outlooks have also been discussed in detail.
期刊介绍:
Nano-Structures & Nano-Objects is a new journal devoted to all aspects of the synthesis and the properties of this new flourishing domain. The journal is devoted to novel architectures at the nano-level with an emphasis on new synthesis and characterization methods. The journal is focused on the objects rather than on their applications. However, the research for new applications of original nano-structures & nano-objects in various fields such as nano-electronics, energy conversion, catalysis, drug delivery and nano-medicine is also welcome. The scope of Nano-Structures & Nano-Objects involves: -Metal and alloy nanoparticles with complex nanostructures such as shape control, core-shell and dumbells -Oxide nanoparticles and nanostructures, with complex oxide/metal, oxide/surface and oxide /organic interfaces -Inorganic semi-conducting nanoparticles (quantum dots) with an emphasis on new phases, structures, shapes and complexity -Nanostructures involving molecular inorganic species such as nanoparticles of coordination compounds, molecular magnets, spin transition nanoparticles etc. or organic nano-objects, in particular for molecular electronics -Nanostructured materials such as nano-MOFs and nano-zeolites -Hetero-junctions between molecules and nano-objects, between different nano-objects & nanostructures or between nano-objects & nanostructures and surfaces -Methods of characterization specific of the nano size or adapted for the nano size such as X-ray and neutron scattering, light scattering, NMR, Raman, Plasmonics, near field microscopies, various TEM and SEM techniques, magnetic studies, etc .