Skip to Main content Skip to Navigation
New interface
Journal articles

Adsorption of styrene sulfonate from aqueous solutions onto carbon fibers and mesoporous carbon

Abstract : The removal of styrene sulfonate from aqueous solution by using different activated carbons, micropo-rous or mesoporous, is studied from kinetics and thermodynamics points of view. The results are interpreted in term of pore size distribution, pore organization and surface charge. Several classical models are tested both for kinetics and thermodynamics aspects. Very different behaviors are observed between the carbons but for all adsorbents, the kinetics were faster in presence of a saline solution and the amount adsorbed at saturation higher, showing the importance of surface charge that introduces an energy barrier against adsorption when molecules and surface have the same charge. Adsorption iso-therms were modeled with Langmuir and double Langmuir equations and the thermodynamic parameters were calculated and correlated with the adsorption behaviors. By using adsorption calorimetry to map the adsorption site distribution, it is possible to validate or not the models.
Document type :
Journal articles
Complete list of metadata

Cited literature [33 references]  Display  Hide  Download
Contributor : Renaud Denoyel Connect in order to contact the contributor
Submitted on : Sunday, February 26, 2017 - 4:08:10 PM
Last modification on : Tuesday, December 14, 2021 - 8:34:02 AM
Long-term archiving on: : Saturday, May 27, 2017 - 12:21:26 PM


MICMAT 09102015_pp.pdf
Files produced by the author(s)




Véronique Wernert, Renaud Denoyel. Adsorption of styrene sulfonate from aqueous solutions onto carbon fibers and mesoporous carbon. Microporous and Mesoporous Materials, 2016, 222, pp.247-255. ⟨10.1016/j.micromeso.2015.10.029⟩. ⟨hal-01476928⟩



Record views


Files downloads