Ti/Si binary oxide thin films

Figure 19.4 XAFS (XANES and Fourier transforms of EXAFS) spectra of Ti/Si binary oxide thin films. Ti02 content (%) (a. A) 6.6, (b, B) 9.5, and (c, C) 50.1...

Figure 19.7 The reaction time profile of the photocatalytic decomposition of NO on Ti/Si binary oxide thin films (Ti02 content 6.6%) under UV hght irradiation at 275 K...

Takeuchi, M., Matsuoka, M., Yamashita, H., and Anpo, M. Preparation of Ti-Si binary oxide thin film photocatalysts by the application of an ionized cluster beam method. J. Synchrotron Rad. 2001, 8, 643. 

Dohshi S., Takeuchi M. and Anpo M. (2003), Effect of the local structure of Ti oxide species on the photocatalytic reactivity and photoinduced superhydrophUic properties of Ti/Si and Ti/B binary oxide thin films , Catal.Today 85, 199-206. 

In this section, Ti/Si and Ti/B binary oxide thin films were prepared by the ICB method using multi-ion sources. Characterization studies were carried out by spectroscopic measurements such as XRD, XAFS and UV-Vis, in order to elucidate the local structure of the Ti oxide species of these thin films. The photocatalytic reactivity was also evaluated for significant reactions such as the decomposition of NO to produce N2 and O2 as well as N2O as a minor product under UV light irradiation. Moreover, the photoinduced super-hydrophilic properties were evaluated by measuring the changes in the contact angle of water droplets under UV irradiation and under dark conditions at 298 K. 

Ti/Si and Ti/B binary oxide thin films with various Ti02 compositions were prepared by the ICB method on a quartz substrate. As a pretreatment, the quartz substrates were ultrasonically cleansed for 15 min in acetone, then dried and annealed at 723 K for 5 h in air. The source materials, Ti metal and SiO (or B2O3) powder, were heated at high temperatures, then Ti and SiO (or B2O3) vapors were... 

The Results of the Curve Fitting Analysis of the FT-EXAFS Data for Ti02 Thin Films as well as Ti/Si and Ti/B Binary Oxide Thin Films... 

Figure 19.6 UV-Vis absorption spectraby transmittance method of Ti/Si and Ti/B binary oxide thin films (a) Ti02, (b) Ti/B (5/95), and (c) Ti/Si (6.6/93.4)...

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