Thermodynamic study of the adsorption of acridinium derivatives on the clay surface
Yuma Yoshida, Tetsuya Shimada, Tamao Ishida, Shinsuke Takagi
Abstract
) were found to be negative and positive, respectively. It was suggested that not only electrostatic interactions, but also van der Waals forces and hydrophobic interactions played an important role in the adsorption of cationic aromatic molecules on the clay surface. Because these thermodynamic parameters showed a strong correlation with the molecular cross-sectional area of acridinium derivatives, it was suggested that the contribution of hydrophobic interactions became smaller as the molecular cross-sectional area became larger.
Topics & Concepts
AdsorptionChemistryGibbs free energyEnthalpyExergonic reactionvan der Waals forceCationic polymerizationMoleculeEquilibrium constantThermodynamicsPhysical chemistryLangmuir adsorption modelOrganic chemistryCatalysisPhysicsAdsorption and biosorption for pollutant removalPhotochemistry and Electron Transfer StudiesClay minerals and soil interactions