Adsorption Mechanism Of Activated Carbon

Activated carbon adsorption refers to the use of the solid surface of activated carbon to adsorb one or more substances in water, in order to achieve the goal of purifying water quality. The adsorption capacity of activated carbon is related to its pore size and structure. Generally speaking, the smaller the particle size, the faster the pore diffusion rate, and the stronger the adsorption capacity of activated carbon.
The adsorption capacity and adsorption speed are the main indicators for measuring the adsorption process. The size of adsorption capacity is measured by the amount of adsorption, and the adsorption rate refers to the amount adsorbed per unit weight of adsorbent per unit time. In water treatment, the adsorption rate determines the contact time between the adsorbent and the wastewater.
Activated carbon mainly undergoes physical adsorption, most of which are monolayer molecular adsorption, and its adsorption capacity is similar to that of the adsorbed substance