Theory of Adsorption http://nano.materials.drexel.edu Adsorption Process Adsorptive. adsorbate before being adsorbed on the surface Adsorbate- the gas adsorbed on the surface of solids Adsorbent- the solid where adsorption takes place Adsorption is brought by the forces acting between the solid and the molecules of the gas. These forces are of two kinds: physical (physiosorption)and chemical (chemisorption8 http://nano.materials.drexel.edu Theory of Adsorption Theory of Adsorption http://nano.materials.drexel.edu Adsorption Process Adsorption Process Adsorption is brought by the forces acting between the solid and the molecules of the gas. These forces are of two kinds: physical (physiosorption) and chemical (chemisorption) Adsorbent - the solid where adsorption takes place Adsorbate - the gas adsorbed on the surface of solids Adsorptive - adsorbate before being adsorbed on the surface