Changes of Pore and Adsorption Capacity of Polyacrylonitrile-based Activated Carbon Fiber (PAN-ACE) in A ctivation

Abstract

Oxidized acrylonitrile fibers (Oxidized PAN-Fibers) were activated by steam at 900°C (PAN-ACF). The pore volume, pore distribution and adsorption capacities of the PAN-ACF for iodine, Methylene Blue and vitamin B12 were compared with those of pitch-based activated carbon fiber (Pitch-ACF) and phenol-based activated carbon fiber (Phenol-ACF). From these results, it is found that PAN-ACF had higher adsorption capacity for vitamin B12 than those of Pitch-ACF and Phenol-ACF. This may be due to the fact that PAN -ACF has high mesopores volume as compared with those of Phenol-ACF and Pitch-ACF. t Studies on Development of Polyacrilonitrile-based Activated Carbon Fiber. V.