Preparation of Activated Carbon Functional Ceramics From Coal Pitch

The influences of different impregnation temperatures, pre-oxidation, carbonization temperatures and activation conditions on the iodine value and carbon deviations was discussed. SEM, EDS, and BET techniques were used to investigate the microstructures and properties of materials. Results showed that activated carbon functional ceramic exhibited excellent comprehensive properties when porous ceramics adsorbed the coal pitch at 150 degrees C for 0.5 h, oxidized at 420 degrees C for 1.0 h, and carbonizated at 700 degrees C for 1.0 h and then activated by using KOH (20wt%) as agent at 800 degrees C for 1.0 h, as confirmed by the high iodine value (162.6 mg/g) and high specific surface area (83.5 m(2)/g).