ADSORPTION
Content
What is Adsorption?
Absorption vs. Adsorption
Why does Adsorption occur ?
Types of Adsorption
Adsorption Isotherms
Freundlich Isotherm
Langmuir Isotherm
BET Isotherm
Applications

Adsorption Isotherms
Plot of the amount of adsorbate on the adsorbent as a function of its pressure (if gas) or concentration (if liquid) at constant temperature.
Langmuir isotherm (adsorbed layer one molecule thick)
Freundlich isotherm (Heterogeneous adsorbent surface with different adsorption sites)
Brunauer, Emmett and Teller (BET) isotherm (molecules can be adsorbed more than one layer thick)