Fig. 2 | Journal of Soils and Sediments

Fig. 2

From: Effect of pedogenic iron-oxyhydroxide removal on the metal sorption by soil clay minerals

Fig. 2

Characteristics of soil nanoparticles before and after the DCB extraction in the sample PC. a Bright-field images of ferrihydrite-clay mineral associations before the extraction showing ferrihydrite particles (indicated by arrows) distributed around and on the surface of large smectite lamellae. b The high-resolution TEM image and its Fourier transform show randomly oriented nanoparticles of ferrihydrite (Fhy) with a poorly ordered structure, dominated by 2.5 Å lattice spacing. c Bright-field images of the smectite (Sm) surface after the DCB extraction show the lack of ferrihydrite particles with high contrast. d The high-resolution TEM and its Fourier transform indicate a typical turbostratic structure of smectite with high Fe content (as shown by EDS analysis)

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