Figure 1From: Anatase TiO2 nanotube powder film with high crystallinity for enhanced photocatalytic performance Schematic and images of the NT powders. (a) Schematic illustration of the fabrication process of NT powders, including (I) anodization of Ti foil to produce NT arrays and (II) ultrasonication in ethanol to disperse the as-formed NTs. (b) The amorphous NT powder obtained by collecting the dispersed NTs. (c) Crystallized NT powder after annealing.Back to article page