通过添加二茂铁制得了中孔较发达的沥青基球状活性炭（ＰＳＡＣ－Ｆｅ），此种活性炭对ＶＢ１２的吸附容量和吸附速度等吸附性能均较未添加二茂铁的沥青基球状活性炭有较大幅度的提高。并且随活化时间的延长，导致ＰＳＡＣ－Ｆｅ中孔孔径及孔容的增大，使其对ＶＢ１２的吸附量及吸附速率逐渐增加、ＰＳＡＣ－Ｆｅ对ＶＢ１２的吸附等温线属于Ｆｒｅｕｎｄｌｉｃｈ型吸附等温线，其吸附过程为膜扩散控制过程。 By adding ferrocene, the mesopore-rich pitch-based spherical activated carbon (PSAC-Fe) was obtained. The adsorption capacity and adsorption rate of such activated carbon on VB12 were better than that of bismuth-based activated carbon without ferrocene A substantial increase. With the activation time prolonged, the pore size and pore volume of PSAC-Fe increased, which increased the adsorption amount and adsorption rate of VB12. The adsorption isotherm of PSAC-Fe for VB12 belongs to the Freundlich adsorption isotherm, The adsorption process of membrane diffusion control process.