摘要
探讨了在较高氨分压下,活性炭纤维(ACF)对于极性吸附质氨的吸附过程,证明在此过程中,ACF孔径结构的重要性。初步讨论了不同的孔径结构下的不同的吸附行为。
The static adsorption behavior of NH3 on the surface of ACFs with different pore structures was studied at relatively high partial pressure of adsorbate. Based on the experimental results, the adsorption process can be divided into two or more stages, and different stage is connected with different mechanism. At the first stage, the ammonia molecules fill in the ultramicropores according to micropore filling mechanism, which is effected greatly by ultramicropore structures, e.g. pore size distribution. At the second stage, the adsorption behavior is attributed to the specific surface area of pores larger than 0.8nm and the monolayer adsorption mechanism acts in this subprocess.
出处
《新型炭材料》
SCIE
EI
CAS
CSCD
1998年第2期43-48,共6页
New Carbon Materials
关键词
活性炭纤维
氨
吸附
孔径结构
吸附纤维
ACF, polar adsorbate, static adsorption, pore structure, multistage adsorption