PAN基中空活性炭纤维的制备及性能研究

讨论了用聚丙烯腈（PAN）基中空纤维为原料，采用KOH活化法制备中空活性炭纤维（ACHF）的活化过程。考察不同KOH质量浓度对中空活性炭纤维性能的影响。测量了比表面积和得率，孔径分布，用碘吸附值、亚甲基兰吸附值测定了中空活性炭纤维的吸附性能，用SEM观察了其表面结构。结果显示，KOH活化法得到的中空活性炭纤维具有窄的孔径分布，较大的比表面积和较高的得率。

Study on the Preparation and Properties of PAN-ACHF

Activated carbon hollow fibers(ACHF) were prepared from polyacrylonitrile(PAN) hollow fiber through oxidation,carbonization and KOH activation.The effects of the KOH concentration on the properties of the resulting PAN based ACHF(PAN-ACHF) were studied.The specific surface area,pore size and yield ratio have been measured.Iodine and Methylene blue adsorption were used to study the adsorption capacity of ACHF.The porous structure of PAN-ACHF was studied by means of scanning electron microscopy(SEM).The results show that PAN-ACHF has larger specific surface area,narrow pore size distribution and high yield ratio.