Abstract
In recent decades, heightened environmental awareness has spurred a global push for innovative waste-to-wealth solutions. This study explores liquid-phase exfoliation as a strategy to enhance biochar properties. By doping onion peels and chicken feathers, hybrid biochar (HBC) was produced using a low-temperature co-carbonization system. Two exfoliation routes, the nitric acid and acetone routes, were compared with the un-exfoliated HBC through material characterization. Material characterization revealed distinct morphological features and a range of functional groups being introduced by exfoliation. It was also observed through the BET analysis that the HBC samples are mesoporous, with the exfoliated HBCs having an enhanced surface area and pore volume. Elemental analysis showcased HBC's fortification, highlighting potential applications such as adsorbents and soil amendments. This investigation shows the efficacy of liquid-phase exfoliation in enhancing biochar surface characteristics, opening avenues for diverse applications.
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