Influence of layer charge and charge location on the swelling pressure of dioctahedral smectites

被引：38

作者：

Sun, Linlin ^{[1
]}

Ling, Chian Ye ^{[1
]}

Lavikainen, Lasse P. ^{[1
]}

Hirvi, Janne T. ^{[1
]}

Kasa, Seppo ^{[2
]}

Pakkanen, Tapani A. ^{[1
]}

机构：

[1] Univ Eastern Finland, Dept Chem, POB 111, FI-80101 Joensuu, Finland

[2] Posiva Oy, FI-27160 Olkiluoto, Eurajoki, Finland

来源：

CHEMICAL PHYSICS | 2016年 / 473卷

关键词：

Swelling pressure; Smectite; Montmorillonite; Beidellite; Molecular dynamics; Simulations; MOLECULAR-DYNAMICS; MONTE-CARLO; COMPACTED BENTONITES; MONTMORILLONITE; CLAY; WATER; HYDRATION; CATION; SIMULATION; SYSTEMS;

D O I：

10.1016/j.chemphys.2016.05.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Swelling pressure of dioctahedral smectites in the montmorillonite - beidellite series was investigated by molecular dynamics simulations. The pressure was found to correlate inversely with the magnitude of the layer charge in the range of -0.5 to -1.0 per unit cell. The beidellite type smectites were found to have lower swelling pressure than the montmorillonite type smectites. A clear effect of the type of interlayer cations on the swelling pressure was found. The sodium smectites sustained significant pressure even at longer interlayer distances, while in calcium smectites the pressure decreased soon after the initial swelling. The simulation results are in good agreement with experimental observations and provide a tool for predicting macroscopic swelling behavior in smectites. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：40 / 45

页数：6

共 50 条

[41] Influence of mineralogical and morphological properties on the cation exchange behavior of dioctahedral smectites
Delavernhe, L.
Steudel, A.
Darbha, G. K.
Schaefer, T.
Schuhmann, R.
Woell, C.
Geckeis, H.
Emmerich, K.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2015, 481 : 591 - 599
[42] Change in layer charge of smectites and smectite layers in illite/smectite during diagenetic alteration
Sato, T
Murakami, T
Watanabe, T
CLAYS AND CLAY MINERALS, 1996, 44 (04) : 460 - 469
[43] The concept of layer charge of smectites and its implications for important smectite-water properties
Christidis, George E.
LAYERED MINERAL STRUCTURES AND THEIR APPLICATION IN ADVANCED TECHNOLOGIES, 2011, 11 : 237 - 258
[44] Structural iron in smectites with different charge locations
N. Finck
M. L. Schlegel
K. Dardenne
C. Adam
S. Kraft
A. Bauer
J.-L. Robert
Physics and Chemistry of Minerals, 2019, 46 : 639 - 661
[45] The swelling of HDTMA smectites as influenced by their preparation and layer charges
Slade, PG
Gates, WP
APPLIED CLAY SCIENCE, 2004, 25 (1-2) : 93 - 101
[46] The influence of double-layer charge interaction on charge injection and charge decay in Si nanocrystals
Zhu, C. Y.
Wu, R.
Wu, Y. Q.
Fan, Y. L.
Jiang, Z. M.
Yang, X. J.
NANOTECHNOLOGY, 2007, 18 (23)
[47] Structural iron in smectites with different charge locations
Finck, N.
Schlegel, M. L.
Dardenne, K.
Adam, C.
Kraft, S.
Bauer, A.
Robert, J. -L.
PHYSICS AND CHEMISTRY OF MINERALS, 2019, 46 (07) : 639 - 661
[48] STUDY OF CHARGE-DISTRIBUTION IN STRUCTURE OF SMECTITES
NOVAK, I
CICEL, B
HORVATH, I
NOVAKOVA, L
MACHAJDIK, D
SILIKATY, 1978, 22 (02): : 133 - 138
[49] Effects of the Layer Charge Location and Interlayer Cation on Rectorite Swelling Properties: Comparison between Molecular Dynamics Simulations and Experiments
Zhang, Wei
Chen, Shanxiong
Tong, Kaiwen
Li, Shichang
Huang, Kang
Dai, Zhangjun
Luo, Lijiao
JOURNAL OF PHYSICAL CHEMISTRY C, 2022, 126 (22): : 9597 - 9609
[50] CHARGE REDUCTION, OCTAHEDRAL CHARGE, AND LITHIUM RETENTION IN HEATED, LI-SATURATED SMECTITES
JAYNES, WF
BIGHAM, JM
CLAYS AND CLAY MINERALS, 1987, 35 (06) : 440 - 448

← 1 2 3 4 5 →