Specific surface area of activated carbon was maximum as 1123 m2 g1 at 900 8C with activation
duration of 2 h and at a K2CO3/char mass ratio of 1.0. The porous properties, surface microstructure in
addition to the surface functional groups of the prepared carbons were characterized by N2 adsorption/
desorption isotherm, FE-SEM and FTIR, respectively.