活性碳纤维的孔大小和结构对于被吸附物质的分子大小起着决定作用。使用常规方法只能获得孔宽度小于 2nm的微孔活性活性碳纤维 ,近年来采用一些特殊方法也只能获得中孔型。本实验采用高膨润度值的粘胶纤维 ,在国内首次制得了表面具有大孔分布的大孔活性碳纤维 ,以浓度为4 0g/L的磷酸三铵溶液浸泡 ,获得的活性碳纤维表面大孔覆盖率达 3个 / μm2 ,其大孔主要分布在 5 0～2 0 0nm之间 The pore size and structure of the activated carbon fiber play a decisive role in the molecular size of the adsorbed material. In the conventional method, only microporous activated carbon fibers with a pore width of less than 2 nm can be obtained. In recent years, only a few mesoporous types have been obtained by some special methods. In this experiment, the viscose fiber with high swell value was used to prepare the macroporous activated carbon fiber with macropore distribution on the surface for the first time in China. The macropore activated carbon fiber Coverage rate of 3 / μm2, the macropores are mainly distributed between 50 ~ 200 nm