The synthesis and characterization of high purity mixed microporous/mesoporous activated carbon from rice husk

Abstract

Rice husk (RH) is one of the most earth abundant, low-cost, and ecofriendly agricultural residues. In this study, we successfully synthesized activated carbon from rice husk (RHAC) through carbonizing the rice husk and activating chemical by K₂CO₃. The effect of carbonization and activation temperature was investigated. At temperature of 800 °C, activated carbon was obtained with high surface area of 1583 m2.g⁻¹ and pore volume of 0,93 cird.g⁻¹. These results suggest that the earth-abundant RH could be sustainable resources for large-scale production of activated carbon.