MATEC Web of Conferences
Volume 5, 2013REMCES XII – XIIe Rencontre Marocaine sur la Chimie de l'État Solide
|Number of page(s)||4|
|Published online||09 September 2013|
Sorption study of organic contaminant on raw and modified clay materials
1 University of Sfax, 3029 Sfax, Tunisia
2 Laboratory of research Water, Energy and Environment – code: AD-10-02, National School of Engineers of Sfax, BP. 3038, Sfax, Tunisia
3 Université Lille Nord de France, 59000 Lille, France
4 ULCO, UCEIV, 59140 Dunkerque, France
a e-mail: email@example.com
The adsorption of volatile organic compound VOC (o-xylene) was studied by a static headspace coupled to gas chromatography in natural and intercalated clay. Vapor–solid adsorption isotherms of o-xylene were measured at 20 °C, 30 °C and 40 °C. Clay was modified with hexadecyl trimetyl ammonium bromide (HDTMA). Absolute values of the amounts of o- xylene adsorbed in intercalated clay were about eighteen times higher than natural clay. The adsorption isotherm were analysed with Langmuir, Freundlich, Langmuir–Freundlich and Toth models. Langmuir–Freundlich model describes well the equilibrium adsorption data. The evaluation of thermodynamic parameters presents an exothermic and spontaneous adsorption process.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.