Langmuirisothermeconcept
The Langmuir isotherm is a mathematical model in surface chemistry that describes adsorption of a gas or solute on a solid surface to form a monolayer. It assumes a homogeneous surface with a finite number of identical adsorption sites, where each site can hold at most one adsorbate molecule and there are no interactions between adsorbed molecules. The model is most applicable to chemisorption on surfaces with uniform energy sites.
The Langmuir equation expresses the amount adsorbed, q, as a function of the (relative) pressure or concentration,
A common linear form is p/q = (1/(q_max b)) + (p/q_max), allowing straightforward determination of q_max and b
The Langmuir model, proposed by Irving Langmuir in 1918, provides a foundational framework for analyzing adsorption