Which Type of Adsorption Is Multilayer Adsorption?

Type III adsorption isotherm refers to multilayer adsorption by weak interactions with low energy between adsorbed molecules and the adsorbent having macropores. Type IV and Type V adsorption models represent the multilayer adsorption together with capillary condensation to the mesoporous adsorbents.

Which adsorption is Monolayered?

Physical adsorption is multilayered while chemical adsorption is monolayered.

Is Freundlich adsorption multilayer?

We choose to consider multilayer adsorption because the Freundlich equation is not limited to any maximum amount of adsorbed species. Therefore, the general adsorption model should be multilayer to remove the saturation effect for the adsorption sites.