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Molecular dynamics study of swelling patterns of Na/Cs-montmorillonites and hydration of interlayer cations |
Liu Tao (刘涛), Chen Yu-Qing (陈雨青) |
Department of Physics & Electronic Information Science and Technology, Guiyang University, Guiyang 550005, China |
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Abstract We report on a molecular dynamics study of swelling patterns of an Na-rich/Cs-poor montomorillonite and a Cs-montomorillonite. The recently developed CLAYFF force field is used to predict the basal spacing as a function of the water content in the interlayer. The simulations reproduce the swelling patterns of the Na and Cs-montomorillonite, suggesting a mechanism of its hydration different from that of the montomorillonite. In the meanwhile, we find that the differences in size and hydration energy of Na and Cs ions have strong implications for the structure and the internal energy of interlayer water. In particular, our results indicate that the hydrate difference in the presence of coexistent Na and Cs has a larger influence on the behavior of clay-water system. For Na-rich/Cs-poor montomorillonite, the hydration energy values of Na ions and water molecules each have a dramatic increase compared with those in Na-montomorillonite on the interlayer spacing, and the hydration energy values of Cs ions and water molecules decrease somewhat compared with those in Cs-montomorillonite.
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Received: 07 May 2012
Revised: 10 July 2012
Accepted manuscript online:
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PACS:
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71.15.Pd
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(Molecular dynamics calculations (Car-Parrinello) and other numerical simulations)
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Corresponding Authors:
Liu Tao
E-mail: liutao_july@163.com
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Cite this article:
Liu Tao (刘涛), Chen Yu-Qing (陈雨青) Molecular dynamics study of swelling patterns of Na/Cs-montmorillonites and hydration of interlayer cations 2013 Chin. Phys. B 22 027103
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[1] |
Perking D 1998 Mineralogy (New Jersey: Prentice Hall) p. 484
|
[2] |
Bailey S W 1988 Review in Mineralogy Hydrations Phyllosilicates (Wisconsin: The Socity) p. 725
|
[3] |
Giannelis E P 1996 Adv. Mater. 8 29
|
[4] |
Alexandre M and Dubois P 2000 Mater. Sci. Eng. 28 1
|
[5] |
Lebaron P C, Wang Z and Pinnavaia T 1999 J. Appl. Clay. Sci. 15 11
|
[6] |
Greenwell H C, Jones W, Voveney P V and Stackhouse S 2006 J. Mater. Chem. 16 708
|
[7] |
Grim R E 1962 Applied Clay Mineralogy (New York: McGraw-Hill) p. 188
|
[8] |
Bleam W F 1993 Rev. Geophys. 31 51
|
[9] |
Teng B K G 1974 The Chemistry of Clay-Organic Reactions (New York: Wiley) p. 104
|
[10] |
Pusch R 1992 Clay Miner. 27 353
|
[11] |
Weik M, Lehnert U and Zaccai G 2005 Biophys. J. 89 3639
|
[12] |
Gong B A and Qi S M 1995 Acta Phys. Sin. 44 157 (in Chinese)
|
[13] |
He H P, Galy L and Gerard J F 2005 J. Phys. Chem. B 109 13301
|
[14] |
Skipper N T, Lock P A, Titiloye J O, Swenson J, Mirza Z A, Howells W S and Alonso F F 2006 Chem. Geol. 230 182
|
[15] |
Chávez-Páez M, van Workum K, de Pablo L and de Pablo J J 2001 J. Chem. Phys. 114 1405
|
[16] |
Fu M H, Zhang Z Z and Low P F 1990 Clay Miner. 38 485
|
[17] |
Bock E S, Coveney P V and Skipper N T 1995 Langmuir 22 4629
|
[18] |
Pascal B, Peter V C and Stephen S 2004 Chem. Phys. Lett. 389 261
|
[19] |
Norrish K 1954 Discuss. Fsraday Soc. 18 120
|
[20] |
Liu T, Tian X F, Zhao Y and Gao T 2010 Chin. Phys. B 19 109101
|
[21] |
Séquaris J M, Decimavilla S C and Ortega J A C 2002 Journal of Colloid and Interface Science 252 93
|
[22] |
Wu J J, Li B, Liao J L, Feng Y, Zhang D, Zhao J, Wen W, Yang Y Y and Liu N 2009 Journal of Environmental Radioactivity 100 914
|
[23] |
Dutta N C, Iwasaki T, Ebina T and Hayashi H 1999 Journal of Colloid and Interface Science 216 161
|
[24] |
Öztop B and Shahwan T 2006 Journal of Colloid and Interface Science 295 303
|
[25] |
Haouzi A, Kharroubi M, HiBelarbi, Devautour-Vinot S, Henn F and Giuntini J C 2004 Appl. Clay Sci. 27 67
|
[26] |
Plimpton S J 1995 J. Comput. Phys. 117 1
|
[27] |
Cygan R T, Liang J J and Kalinichev A G 2004 J. Phys. Chem. B 108 1255
|
[28] |
Berendsen H J C, Postma J P M, van Gunsteren W F and Hermans J 1981 Interaction Models for Water in Relation to Protein Hydration, in Intermolecular Forces, ed Pullman B (D Reidel: Amsterdam) p. 331
|
[29] |
Skipper N T, Chang F R C and Sposito G 1995 Clays Clay Miner. 43 285
|
[30] |
Fu J M, Zhang Z Z and Low P F 1990 Clays Clay Miner. 38 485
|
[31] |
Boek E S, Conevey P V and Skipper N T 1995 Langmuir 11 4629
|
[32] |
Marry V, Turc P, Cartailler T and Levesque D 2002 J. Chem. Phys. 117 3454
|
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