Sorption Interactions in an Surfactant–Triterpenoid Saponin–Activated Carbon System

Equilibrium curves of the sorption of saponin on activated carbon are analyzed. It is found that the shape of the curve of the sorption isotherm of saponin is determined by processes of association in the solution and sorbent. Based on the calculated parameters, a structure is proposed for an adsorption layer of glycoside on the surface of a carbon-based material, and an assumption about intermolecular dispersion interactions is made.