Adsorption kinetics refers to the rate at which molecules from a gas or liquid phase adhere to a solid surface. This process is crucial in various fields, including environmental science, catalysis, and material science. The speed of adsorption can be influenced by factors such as temperature, concentration, and the nature of the adsorbent material. The study of adsorption kinetics often involves models like the Langmuir and Freundlich isotherms, which help describe how molecules interact with surfaces. Understanding these kinetics is essential for optimizing processes like water treatment and chemical manufacturing, where efficient adsorption can enhance performance and reduce costs.