Assessment of the surface area occupied by molecules on activated carbon from liquid phase adsorption data from a combination of the BET and the Freundlich theories

Nady Passé-Coutrin; Sandro Altenor; Sarra Gaspard

doi:10.1016/j.jcis.2008.12.079

Assessment of the surface area occupied by molecules on activated carbon from liquid phase adsorption data from a combination of the BET and the Freundlich theories

J Colloid Interface Sci. 2009 Apr 15;332(2):515-9. doi: 10.1016/j.jcis.2008.12.079. Epub 2009 Jan 10.

Authors

Nady Passé-Coutrin¹, Sandro Altenor, Sarra Gaspard

Affiliation

¹ Laboratoire COVACHIMM, EA 3592 Université des Antilles et de la Guyane, BP 250, 97157 Pointe à Pitre Cedex, Guadeloupe, France.

PMID: 19200561
DOI: 10.1016/j.jcis.2008.12.079

Abstract

A new equation is derived from a combination of the BET (Brunauer, Emmett, Teller) and Freundlich isotherms fitted for liquid phase adsorption data on activated carbons. This equation, depending on the Freundlich parameters and the equilibrium adsorption-desorption constant can be used for assessment of the surface area occupied by the solute molecules on a surface in a liquid phase system under some conditions.