A Review on TiO₂ Nanotube Film Photocatalysts Prepared by Liquid-Phase Deposition

Figure 4

SEM micrographs of TiO₂ nano tubes prepared with different concentration of deposition solution ((NH₄)₂TiF₆): (a) 0.05 mol/L, (b) 0.1 mol/L, (c) 0.3 mol/L.

(a)

(b)

(c)