The mesoporous activated carbon fibers have been manufactured from polyacrylonitrile fibers with carbon black addition, then its adsorption of VB12 has been studied.

• 用炭黑政性聚丙烯腈原丝，制得了富含中孔的活性炭纤维，研究了它对大分子物质VB12的吸附性能。