Related Experiment Video
Updated: Jun 15, 2026

Deposition of Porous Sorbents on Fabric Supports
Published on: June 12, 2018
Adsorption equilibria of water vapor on cork
Sonia Lequin1, David Chassagne, Thomas Karbowiak
1Institut Universitaire de la Vigne et du Vin, Institut Jules Guyot, 1 Rue Claude Ladrey, Universite de Bourgogne, Dijon, France.
Abstract:
We report here for the first time a complete thermodynamic study of water vapor adsorption on crude cork powder and plate. Adsorption-desorption isotherms were accurately measured by thermogravimetry at 283, 298, and 313 K in a large range of relative pressure. Adsorption enthalpies were determined by calorimetry as a function of loading. Adsorption-desorption isotherms exhibit a hysteresis due to the swelling of the material. The influence of the presence of lenticels on the adsorption properties of cork is found to be negligible. A detailed analysis and interpretation of adsorption data allow proposal of an adsorption mechanism in two steps. (i) First, water adsorbs on hydrophilic sites constituted by hydroxyl and methoxyl groups. (ii) Then water adsorption continues by clusters formation around the hydrophilic sites.
More Related Videos
11:38In situ FTIR Spectroscopy as a Tool for Investigation of Gas/Solid Interaction: Water-Enhanced CO2 Adsorption in UiO-66 Metal-Organic Framework
Published on: February 1, 2020
05:46High-pressure Sapphire Cell for Phase Equilibria Measurements of CO2/Organic/Water Systems
Published on: January 24, 2014
Related Concept Videos
Adsorption Isotherms I
Adsorption Isotherms II
Clausius-Clapeyron Equation
Adsorption of Gases on Solids
Solubility Equilibria: Ionic Product of Water
The ionic product of water varies with temperature, and its value is 1.0 x 10−14 at standard experimental conditions. Per Le Chatelier's...
Vapor Pressure