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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
A theoretical study of swelling and shrinking of hydrated Wyoming montmorillonite
Applied Clay Science, Volume 51, No. 1-2, Year 2011
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Description
Monte Carlo molecular modelling simulations were performed to investigate the swelling and shrinking behaviour of hydrated Wyoming-type montmorillonite (MMT) including different counterions. MCY, TIP4P, and SPC/E water and potential models were employed to Li- and Na-montmorillonite. The simulation data with the SPC/E water model fitted the experimental swelling curves. The agreement between our results and available experimental and/or preceding theoretical results allow us to predict the swelling and shrinking behaviour of MMT including other cations such as some heavy metal ions (Ni2+, Zn2+ and Pb2+). The hysteresis between swelling and shrinking is due to the different mechanism of adsorption and desorption by breaking and re-formation of hydrogen bonds between the water molecules. © 2010 Elsevier B.V.
Authors & Co-Authors
Zaoui, Ali
France, Villeneuve-d'ascq
Laboratoire Génie Civil et Géo-environnement Lille Nord de France Lgcge
Shahrour, Isam
France, Villeneuve-d'ascq
Laboratoire Génie Civil et Géo-environnement Lille Nord de France Lgcge
Statistics
Citations: 65
Authors: 2
Affiliations: 1
Identifiers
Doi:
10.1016/j.clay.2010.10.027
ISSN:
01691317
Research Areas
Environmental