Fabrication of TiO₂ Nanotanks Embedded in a Nanoporous Alumina Template

Figure 1

Schematic procedure for preparation of TiO₂ nanotanks embedded in a nanoporous alumina template: (a) the AAO template with both sides opened is lifted to the wet inorganic TiO₂ coating. (b) The AAO nanocavities are filled with the titanium alkoxide sol. (c) The sol in excess at the surface is wiped. (d) After the annealing, a development step is then applied in order to remove partially AAO template. (e) TiO₂ nanotanks embedded in an AAO nanoporous template are obtained.

(a)

(b)

(c)

(d)

(e)