What Factors Affect Physical Adsorption at the Nanoscale?
Several factors influence the efficiency of physical adsorption at the nanoscale:
1. Surface Area: Higher surface areas provide more active sites for adsorption. 2. Pore Size and Distribution: Nanomaterials with an optimal pore size facilitate better diffusion and adsorption of molecules. 3. Surface Chemistry: The presence of functional groups can enhance or hinder adsorption depending on their interactions with the adsorbate. 4. Temperature and Pressure: Lower temperatures and higher pressures generally favor physical adsorption due to the exothermic nature of the process.