Abstract
The sugarcane based activated carbon was prepared by one-step method using sugarcane bagasse as raw material and H3PO4 as activator, meanwhile in order to get the better preparation condition of the materials the dose of phosphoric acid addition, material liquid ratio, activation temperature, and activation time on the adsorption performance of activated carbon were discussed. This study investigated the effects of different preparation conditions on the adsorption and desorption performance of activated carbon through characterization such as BET, FT-IR, XRD, dynamic adsorption, and static adsorption, which has shown that when the phosphoric acid content was 30%, the solid-liquid ratio was 1:2, the activation temperature was 400 ℃, and the activation time was 30 minutes by one-step method, the carbon content reached 55.73%, but its specific surface area can reach 1037.7m2 /g, the saturated adsorption capacity can reach 487.3mg/g, and the adsorption capacity was still above 80% after three regenerated, and the adsorption and desorption performance was the best.