Open AccessSurface Activity Coefficients in Adsorption at Liquid/Solid Interface
Author(s) -
A. Dąbrowski,
M. Jaroniec,
J. Ościk
Publication year - 1986
Publication title -
adsorption science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.682
H-Index - 36
eISSN - 2048-4038
pISSN - 0263-6174
DOI - 10.1177/026361748600300402
Subject(s) - adsorption , chemistry , solid surface , activity coefficient , surface (topology) , simple (philosophy) , thermodynamics , chromatography , gibbs isotherm , chemical physics , aqueous solution , philosophy , physics , geometry , mathematics , epistemology
The global surface activity coefficients characterizing nonideality of the surface solution generated by differences in molecular interactions and adsorbent heterogeneity are defined and studied. These activity coefficients may be evaluated from the excess adsorption data. It is shown that they are useful to formulate a simple unified description of liquid/solid adsorption involving effects of solution nonideality and adsorbent heterogeneity.