Boehmite and Akaganeite 1D and 2D Mesostructures: Synthesis, Growth Mechanism, Ageing Characteristics and Surface Nanoscale Roughness Effect on Water Purification

Figure 1

TEM characterization of 2D and 1D γ-AlOOH and 2Dβ-FeOOH crystallites: (a) TEM image of the 1Dγ-AlOOH crystallites [6]; (b) TEM image of the 1Dγ-AlOOH crystallites attached to a 0.6 μm diameter microglass fiber [6]; (c) HRTEM image of the edge coverage of 5 μm diameter DE particle by the 2Dγ-AlOOH crystallites with atomic resolution. The separation of ≈0.24 nm is in agreement with the bulk boehmite lattice parameter d₍₀₂₀₎ = 0.242(4) nm [24]; (d) HRTEM image of the surface coverage of 5 μm diameter DE particle by the 2Dγ-AlOOH crystallites; (e), (f) HRTEM images of the surface coverage of 5 μm diameter DE particle by 2D. γ-AlOOH crystallites further functionalized with 2D atomically thin nanobelts of akaganeite . β-FeOOH crystallites.

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