One-step synthesis of a sustainable carbon material for high performance supercapacitor and dye adsorption applications

Abstract

The sustainable transformation of bio-waste into usable, material has gained great scientific interest. In this paper, we have presented preparation of an activated carbon material from a natural mushroom (Suillus boletus) and explor its properties for supercapacitor and dye adsorption applications. The produced cell exhibited a single electrode capacitance of-247 F g-1 with the energy and power density of-35 Wh kg-1 and 1.3 kW kg-1, respectively. The cell worked well for-20,000 cycles with-30% initial declination in capacitance. Three cells connected in series glowed a 2.0 V LED for-1.5 min. Moreover, ultrafast adsorption of methylene blue dye onto the prepared carbon as an adsorbent was recorded with-100% removal efficiency in an equilibrium time of three minutes. The performed tests indicate that the mushroom-derived activated carbon has the potential to become a high-performance electrode material for supercapacitors and an adsorbent for real-time wastewater treatment applications.