Abstract
Adsorption dynamics are of fundamental importance in applications of adsorbents in real situations. The adsorption/desorption characteristics of a series of adsorbates, with varying hydrophilic/hydrophobic and structural characteristics, for activated carbon BAX950, were investigated for temperatures in the range 288-323 K. These data provide a comprehensive kinetic study of adsorption/desorption for an activated carbon. The results are discussed in relation to the adsorbent pore structure and functional group concentration, adsorptive structure and adsorption mechanism. The study provides evidence for a compensation effect where activation energy and ln(pre-exponential factor) parameters obtained from the Arrhenius equation exhibit a linear correlation.
| Original language | English |
|---|---|
| Pages (from-to) | 989-1004 |
| Number of pages | 15 |
| Journal | Carbon |
| Volume | 44 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Apr 2006 |
Keywords
- activated carbon
- adsorption
- activation energy
- diffusion
- porosity
