Gas-Supported High-Photoactivity TiO<sub><b>2</b></sub>
 Nanotubes

<table>Formation process of TiO<sub>2</sub>-NTs@@SiO<sub>2</sub> (500°C, 2 h) and TiO<sub>2</sub>-NRs@@SiO<sub>2</sub> (Over 600°C, 2 h).</table>

Journal of Nanomaterials

Scheme 1: Gas-Supported High-Photoactivity TiO<sub><b>2</b></sub>
 Nanotubes 