Review Article
An Overview on the Photocatalytic Activity of Nano-Doped- in the Degradation of Organic Pollutants
Table 9
Effect of dopant amount on the photocatalytic activity of nano-doped-TiO2 in the photocatalytic degradation of various organic pollutants.
| Type of dopant | Doped TiO2 preparation method | Range of dopant amount (wt%) | Optimum dopant concentration (wt%) | Organic pollutant | Initial reactant concentration (mg/L) | Light source | Irradiation time (h) | Degradation efficiency (%) | Reference |
| Fe | Sol gel | 0.0β1.0 | 0.500 | Methyl orange | 20.0 | UV-vis | 3.0 | 99.7 | [46] | Hydrothermal | 0.00β0.12 | 0.090 | XRG | 100.0 | UV | 7.0 | 42 | [50] | Controlled hydrolysis | 0.00β0.20 | 0.200 | Methyl orange | 20.0 | UV | 6.0 | 72 | [53] | Co-precipitation | 0.0β10..0 | 0.017 | Phenol | 18.8 | Visible | 3.1 | 20 | [55] | Hydrothermal | 0.0β5.0 | 0.001 | Methylene blue | 100.0 | UV | 1.0 | 72 | [51] | Pt | Impregnation | 0.0β1.6 | 0.800 | Acid green 16 | 122.0 | UV | 1.0 | 94 | [57] | Photochemical reduction | 0.0β3.0 | 1.500 | Methyl orange | 20.0 | UV | 0.5 | 88 | [58] | Pd | Impregnation | 0.0β2.0 | 0.050 | Acid green 16 | 122.0 | UV | 1.0 | 80 | [57] | Au | Impregnation | 0.0β1.6 | 0.800 | Acid green 16 | 122.0 | UV | 1.0 | 98 | [57] | S | Hydrothermal | 0.0β2.0 | 0.012 | Methyl orange | 20.0 | UV | 0.7 | 96 | [79] | Ce | Hydrothermal | 0.0β5.0 | 0.017 | Rhodamine B | 24.0 | UV | 2.0 | 90 | [62] |
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