One-Dimensional TiO₂-B Crystals Synthesised by Hydrothermal Process and Their Antibacterial Behaviour on Escherichia coli

Figure 4

One-dimensional TiO₂-B monocrystal phase of the nanostructures is confirmed by calcination. (a) X-ray diffraction of the sample treated at 130°C for 6 days and calcined at 500°C. Peaks conformed by anatase, TiO₂-B, and titanate phases are shown. Patterns obtained from previous publications [5, 21]. (b) Raman spectroscopy of a sample prepared with the same hydrothermal method. Spectrum obtained for 1D-TiO₂-B, characterized according to the relative wavelength where Raman effect was produced. Results compared with previous reports [21]. Excitation wavelength of 632.8 nm and 5 mW laser power.

(a)

(b)