Fig. 4 | Scientific Reports

Fig. 4

From: Soil potassium adsorption and speciation dynamics with associated clay microstructural changes revealed by synchrotron X-ray microscopy

Fig. 4

SEM (a–d) and 2D TXM (e–h) images of 1% w/v soil flocculation in DI water, 0.025 M, 0.25 M, and 1 M KCl solutions. 3D TXM images of 1% w/v clay particle flocculation in 1 M KCl for non-fertilized soil (i), long-term K-fertilized soil (j), alkaline soil (k), red soil (l), and forest (m) at different angle. White area in 2D TXM images represent clay particle and black area belong to voids area.

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