화학공학소재연구정보센터
Applied Chemistry, Vol.7, No.1, 309-312, May, 2003
농산물 폐기물에 의한 활성탄의 제조 및 중금속 흡착
Preparation of Activated Carbon from Agricultural Wastes and Adsorption of Heavy Metal
Activated carbons were prepared from agricultural wastes by chemical activation with phosphoric acid and potassium hydroxide. The coffee wastes and pepper-seed were used as raw materials. Preparation process involves the roasting of raw material and carbonization of roasted material followed by chemical activation. N2-BET surface areas of activated coffee char and pepper-seed char prepared by chemical activation were measured as 975 ~ 1154 m2/g and 1355 ~ 2266 m2/g, respectively. Removal of copper in solution by two different activated carbons was carried out and structural change of pore surface was observed by SEM.