Research Article
Enhanced Photocatalytic Activity for Degradation of Methyl Orange over Silica-Titania
Table 1
Textural properties of the Rx-SMT powders prepared at 550°C for 1 h.
| Samples | Si/Ti molecular ratio by XPS | Surface area (m2·g−1) | Average size (nm) |
| 0-SMT | 0 | 20 | 50.5 | 0.05-SMT | 0.053 | 160 | 8.9 | 0.1-SMT | 0.094 | 196 | 7.2 | 0.1-SMT treated by H2SO4 solution | 0.093 | 195 | 7.2 | 0.2-Silica titania | 0.206 | 208 | 6.9 |
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