Table 7.
The kinetic parameters of different compositions for the Langmuir–Hinshewood (L–H) model under visible and UV irradiation with concentration 0.25 ppm
| Catalysts | Light source | k1 | qmax (mg/g) | |
|---|---|---|---|---|
| Powder | Gd2O3 | − 0.77 | 4.32 | |
| CdS/Gd2O3 | Visible | − 4.92 | − 144.92 | |
| CdS/Gd2O3@GO | (Halogen lamp, 500 W) | − 6.58 | − 126.58 | |
| Powder | Gd2O3 | − 0.4 | 8.33 | |
| CdS/Gd2O3 | UV | − 0.43 | 7.69 | |
| CdS/Gd2O3@GO | (UVC Lamp, 15 W) | − 0.26 | 12.5 | |
| Nanofiber | Gd2O3 | − 0.66 | 5 | |
| CdS/Gd2O3 | Visible | − 0.59 | 5.64 | |
| CdS/Gd2O3@GO | (Halogen Lamp, 500 W) | − 0.38 | 8.69 | |
| Gd2O3 | − 0.76 | 4.34 | ||
| CdS/Gd2O3 | UV | − 0.87 | 3.83 | |
| CdS/Gd2O3@GO | (UVC Lamp, 15 W) | − 0.4 | 8.33 | |