adsorption: An increase in the concentration of a dissolved substance at the interface of a condensed and a liquid phase due to the operation of surface forces. Adsorption can also occur at the interface of a condensed and a gaseous phase. [5] Like surface tension, adsorption is a consequence of surface energy.
Learn the difference between adsorption and absorption and get definitions and examples of these two sorption processes.
adsorption, capability of all solid substances to attract to their surfaces molecules of gases or solutions with which they are in contact. Solids that are used to adsorb gases or dissolved substances are called adsorbents; the adsorbed molecules are usually referred to collectively as the adsorbate. An example of an excellent adsorbent is the charcoal used in gas masks to remove poisons or ...
Adsorption is driven by attractive forces between the adsorbate (the substance being adsorbed) and the adsorbent (the solid material). These attractive forces can be physical or chemical, depending on the specific system. Intermolecular forces include van der Waals forces, electrostatic interactions, and hydrogen bonding. Adsorption finds diverse applications across several industries due to ...
The adsorption of contaminants or pollutants on the surface of the absorbent depends on the physical–chemical properties of the adsorbent-adsorbate interface. Chemical adsorption is an irreversible process and needs to supply energy of>40 kJ.mol−1, while physical adsorption is reversible and easily occurred by lower energy [199].
Adsorption takes advantage of the tendency of one or more components of a liquid or gas to collect on the surface of a solid. This tendency can be leveraged to remove solutes from a liquid or gas or to separate compo-nents that have different affinities for the solid. The process objective may be either waste treatment or the purification of valuable components of a feed stream. In an ...