Research Article
Characterization and Photocatalytic Activity of Enhanced Copper-Silica-Loaded Titania Prepared via Hydrothermal Method
Table 2
Crystal properties of TiO2-SiO2 oxide powder.
| | Sample | Ti/Si ratio | SiO2 content (%) | Final pH value | Crystallite size/nm (XRD) |
| | SA0 | 1 : 0 | 0 | 3 | 6.30 | | SA 5 | 19 : 1 | 5 | 3 | 6.63 | | SA10 | 9 : 1 | 10 | 3 | 7.06 | | SA16 | 5 : 1 | 16.67 | 3 | 8.91 | | SA20 | 4 : 1 | 20 | 3 | 9.54 | | SA25 | 3 : 1 | 25 | 3 | 6.88 | | SA25-Cu(0.05) | 3 : 1 | 25 | 3 | 10.8 | | SA25-Cu(0.1) | 3 : 1 | 25 | 3 | 9.48 | | SA25-Cu(0.15) | 3 : 1 | 25 | 3 | 9.62 | | SA25-Cu(0.2) | 3 : 1 | 25 | 3 | 10.11 | | SA25-Cu(0.5) | 3 : 1 | 25 | 3 | 8.21 | | SA25-5 | 3 : 1 | 25 | 5 | 8.63 | | SN25-7 | 3 : 1 | 25 | 7 | 9.98 | | SA30 | 7 : 3 | 30 | 3 | 11.78 | | SA50 | 1 : 1 | 50 | 3 | 11.76 | | SB0 | 1 : 0 | 0 | 9 | 3.75 | | SB16 | 5 : 1 | 16.67 | 9 | — | | SB20 | 4 : 1 | 20 | 9 | — | | SB25 | 3 : 1 | 25 | 9 | — | | SB25-12 | 3: 1 | 25 | 12 | — | | SB25-14 | 3 : 1 | 25 | 14 | 4.57 | | SB30 | 7 : 3 | 30 | 9 | — | | SB50 | 1 : 1 | 50 | 9 | — |
|
|
SA: acid, SB: basic, SN: neutral.
|
