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. 2023 Oct 10;13:17146. doi: 10.1038/s41598-023-44256-7

Figure 6.

Figure 6

(a) sketch of a water drop on a kaolinite surface (top) demonstrating the preferential flat orientation of the particles on the glue surface with the magnification (bottom) showing the interaction between water molecules and the basal planes, (b) interaction between a flat kaolinite particle and a planar cell surface with the magnification (c) which illustrates how the basal plane with low atomic packing and edge plane with high atomic packing contact the cell surface, (d) same as (a) for montmorillonite, (e) interaction between a porous domain of a montmorillonite particle and a planar cell surface with the magnification (f) showing the basal/edge stacking units that get in contact with the cell surface. The crystal pattern is made by Avogadro free software (version 2.0) and it is general for clay minerals. The overlapping basal/edge stacking units of montmorillonite are pure imagination based on our AFM results and the literature10,27.