Research Article
The Effect of Molar Ratios of Ti/Si on Core-Shell SiO2@TiO2 Nanoparticles for Photocatalytic Applications
Table 3
A comparison of TiO2-SiO2 composites for photodegradation of phenol and MB.
| | Photocatalyst | Synthesis method | Light source | Initial concentration of substrate (mg/L) | Concentration of photocatalysis (g/L) | Reaction time (min) | Efficiency (%) | Ref. |
| | TiO2-SiO2 photocatalyst | Sol-gel | UV light (150 W) | 50 (phenol) | 1 | 120 | 48 | [36] | | Titania-silica composites | Nonaqueous approach | UV light (8 W) | 100 (phenol) | 3 | 180 | 67 | [37] | | TiO2-SiO2 catalysts | Homogeneous precipitation method | UV light (125 W) | 500 (phenol) | 2.5 | 640 | 100 | [38] | | TiO2-SiO2 aerogels | Sol-gel method | UV light (15 W) | 50 (phenol) | 1 | 180 | 42 | [39] | | CSTNs | Hydrothermal method | UV light (500 W) | 20 (phenol) | 0.25 | 120 | 99.4 | This paper | | TiO2/SiO2 nanoparticles | Hydrothermal method | UV light (30 W) | 10 (MB) | 1 | 35 | 96.4 | [40] | | Titania-modified mesoporous silicates | Impregnation method | UV light (400 W) | 10 (MB) | 1 | 240 | 96.0 | [41] | | Silica–titania mixed oxides | Sol-gel method | Xenon lamp (0.68 W/m2) | mol/L (MB) | 12 | 180 | 95 | [42] | | TiO2-SiO2 mesoporous materials | Hydrothermal method | UV light (125 W) | 40 (MB) | 0.3 | 110 | 65 | [43] | | Silica–titania photocatalysts | Hydrothermal method | UV light (125 W) | 20 (MB) | 5 | 360 | 90 | [44] | | SiO2/TiO2 nanoparticles | Sol-gel method | Xenon lamp (300 W) | 10 (MB) | 1 | 80 | 97.7 | [45] | | TiO2-SiO2 mixed oxides | Sol-gel method | UV light (39 W) | mol/L (MB) | 0.3 | 120 | 76.7 | [46] | | TiO2/SiO2 composites | Sol-gel method | Xenon lamp (300 W) | mol/L (MB) | 0.3 | 60 | 98 | [47] | | CSTNs | Hydrothermal method | UV light (500 W) | 20 (MB) | 0.25 | 120 | 99.2 | This paper |
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