The new processes for the preparation of nanoglasses have been developed through anodic oxidation. The aluminum thin film sputtered on the ITO thin film on the glass surface was decomposed into alumina by anodic oxidation technique. The alumina layer possessed nanometer size pore array standing on the glass surface. The sizes of the pore was widened by acid etching from 10 approx. 20 nm to a few hundred nm. The glass substrate having the alumina nanostructures on the surface could transmit the UV and visible light at the wavelength range of 200 approx. 800 nm. The TiO2 sol was impregnated into the pores of alumina layer and the sample was heated at approx. 400 deg. C for 2 hr, converted into TiO2 nanotubes of anatase phase. The acid etching could remove the alumina skeletons, leaving the TiO2 nanotube array on the glass surface. These glasses were transparent to the light in UV-visible region. The electrodeposition technique was applied to the introduction of Ni metal into pores, giving Ni nanorod array on the glass surface. The glass samples possessing TiO2 nanotube array showed very good catalytic function on the decomposition of acetaldehyde gas under the irradiation of UV light. The effect of the dimensions of the Ni nanorods on the magnetization was investigated.
APPROVED FOR PUBLIC RELEASE
Keywords relating to this report:
Email This Abstract
