Formation of TiO2 nanotubes by thermal decomposition of poly(vinyl alcohol)-titanium alkoxide hybrid nanofibers
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Anatase type TiO2 nanotubes were formed by calcination of poly(vinyl alcohol)-Ti alkoxide hybrid precursor nanofibers in air. The outer and inner diameters of the TiO2 nanotubes calcined at 500 °C for 5 h were ca. 440 nm and ca. 270 nm, respectively. The specific surface area of the TiO2 nanotubes was 38.8 m2/g, and the existence of mesopores (average pore diameter, 14.8 nm) on the nanotube wall was indicated by the nitrogen adsorption isotherm (−196 °C). The photocatalysis of the TiO2 nanotubes was superior to that of commercially available anatase type TiO2 nanoparticles.
KeywordsTiO2 Methylene Blue Photocatalysis Alkoxide TiO2 Nanotubes
The authors thank KANBO PRAS CORPORATION, Japan, for partial financial support.
- 14.Kinbara A (1999) Thesis, Facutly of Engineering, Fukui UniversityGoogle Scholar