2014
DOI: 10.2478/amsc-2014-0035
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Hydration Layers on Clay Mineral Surfaces in Aqueous Solutions: a Review/Warstwy Uwodnione Na Powierzchni Minerałów Ilastych W Roztworach Wodnych: Przegląd

Abstract: Hydration layer on clay mineral surfaces is originated from the adsorption of polar water molecules and hydrated cations on the surfaces through unsaturated ionic bonds, hydrogen bonds and van der Waals bonds. It has attracted great attentions because of their important influences on the dispersive stability of the particles in aqueous solutions. This review highlighted the molecular structure of clay minerals, the origin of hydration layers on clay mineral surfaces, the hydration layer structural model, hydra… Show more

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Cited by 7 publications
(2 citation statements)
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References 61 publications
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“…(c)) and their adsorption was reduced with increasing pH from 8 to 11. The smaller amount adsorbed is due to repulsion between net negatively charged clay particles and negatively charged polymer at high pH . Aggregation or stacking of clay particles occurred to a greater extent at a lower pH of 7, resulting in reduction of the superficial area of clay.…”
Section: Resultsmentioning
confidence: 99%
“…(c)) and their adsorption was reduced with increasing pH from 8 to 11. The smaller amount adsorbed is due to repulsion between net negatively charged clay particles and negatively charged polymer at high pH . Aggregation or stacking of clay particles occurred to a greater extent at a lower pH of 7, resulting in reduction of the superficial area of clay.…”
Section: Resultsmentioning
confidence: 99%
“…When the pore water pressure exceeds the shear force of the bound water, the bound water moves, resulting in a thresholding hydraulic gradient in the clay seepage, and the thresholding hydraulic gradient is linearly related to the shear force of the bound water. While previous studies have examined the hydration, expansion, and dispersion characteristics of clay particles, focusing on the mechanisms of a strongly bound-water layer and weakly-bound-water layer [23,24], no research has delved into the microscopic-level mechanism of water transformation during medium-and low-velocity non-Darcy seepage in clay samples. Further investigation into these microscopic mechanisms is necessary to enhance our understanding of the complex interplay between bound water and clay particles during non-Darcy seepage processes.…”
Section: Introductionmentioning
confidence: 99%