| Material/Method | Pollutant/light source | Results | References |
| G-TiO2/sol-gel with surfactant | Naphthalene (30 μg/mL) with Sodium dodecyl sulfonate as surfactant (aqueous media)/UV light | 98.62% remediation after 48 h | [48] |
| G-TiO2/sol-gel without surfactant | Toluene (aqueous media)/only Visible light | 90% in one h | (Present manuscript) (Present manuscript) (Present manuscript) |
| Naphthalene/(aqueous media)/only Visible light | 50% in 48 h | ||
| Diesel/(aqueous media)/only Visible light | 40% in 48 h |