摘要
通过吸附热力学研究,计算出CS_2蒸气在活性碳纤维(ACF)上的吸附热、吸附功和吸附熵.结果表明,吸附属物理吸附范畴,所用吸附剂样品表面是不均匀的.
Adsorption isotherms of carbon disulphide(CS2) vapour on the granular activated carbon (GAC) and several kinds of activated carbon fiber (ACF) were determined by gravimetric method. The thermodynamics of the adsorption was also studied. The results indicated that ACF adsorbs CS2 vapour in a physical way with higher adsorption heat, work, and entropy than GAC does. The order of adsorption heat, work, and entropy is. JPANACF (Japanese polyacrylo-nitrile-based ACF) > CPANACF (Chinese PANACF) > CELACF (cellulose based ACF) >PHNACF (phenolic-based ACF) > GAC. The curves of the adsorption heat suggested that the surface of ACF and GAC used is heterogeneous. The experiment leads to the conclusion that PANACF is the best adsorbent among those studied.
出处
《环境科学学报》
CAS
CSSCI
CSCD
北大核心
1992年第3期349-357,共9页
Acta Scientiae Circumstantiae
关键词
活性碳纤维
二硫化碳
吸附
activated carbon fiber
adsorption
carbon disulphide.
