Most of the adsorbents are heterogeneous and can be characterised using a binding affinity distribution function.

This article describes an improvement on a previous model proposed by Ba~ant and Najjar, in which moisture diffusivity and moisture capacity are treated as separate parameters. These parameters are evaluated from independent test results, and are shown to depend on the water:cement ratio, curing time, temperature, and cement type. The moisture capacity is obtained as the slope of the adsorption...

The analysis of surface and pores of activated carbons oxidized to various degrees has been carried out on the basis of adsorption isotherms of nitrogen, water and several organic compounds. The reason for the large hysteresis of isotherms of water was ascribed to the structure formation of water in the micropores caused by the hydrophobic interaction at water-carbon inferface. INTRODUCTION The...

The knowledge of sorption processes of nonelectrolytes in solution by solid adsorbents implies the study of kinetics, equilibrium, and thermodynamic functions. However, quite frequently the equilibrium isotherms are studied by comparing them with those corresponding to the Giles et al. classification (1); these isotherms are also analyzed by fitting them to equations based on thermodynamic or k...

Equilibrium Moisture sorption isotherms are very important in drying and storage analysis. Experimental moisture equilibrium data (adsorption desorption) of Aspirin were determined using the static method saturated salt solutions that by exposing material to different conditions temperatures water activities. Three (25, 30, 40Cº) activities range (6.3- 83.6%) used. The results showed content in...