Abstract

• Rice husk was washed with distilled water to remove the contaminants present in the rice husk. The wet rice husk was dried at room temperature. The most important properties that provide information about the fuel were proximate such as moisture, ash content, volatile and fixed carbon contents. The fixed carbon content of rice husk biochar (RHB) was measured to be 10.3 mf wt%. The experiment was carried out to study the characterization of the rice husk ash. The rice husk biomass was heated at 300˚C for 1h in muffle furnace and grounded into the uniform powder. Then, the carbonized material obtained was socked in 1M KOH, in 1:1 ratio for 24 h and followed physical activation at 300C for 2h in muffle furnace. The structure characterization of activated carbon rice husk biochar (AC-RHB) was identified by X-ray diffraction (XRD) technique. The carbon C was observed by Energy Dispersive X-ray spectroscopy (EDXRF). The porous nature of AC-RHB was studied by scanning electron microscopy (SEM). The carbon C, O, and Si were observed by Energy Dispersive X-ray spectroscopy (EDX). The Fourier transform infrared spectroscopy (FTIR) analysis showed the presence of a variety of functional groups of AC-RHB.