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Kinetic parameters of different compositions for the Langmuir–Hinshewood (L–H) model under visible and UV irradiation with a concentration of 0.5 ppm
| Catalysts | Light source | k1 | qmax | |
|---|---|---|---|---|
| Gd2O3 | − 0.1 | 33.33 | ||
| Powder | CdS/Gd2O3 | Visible | − 0.26 | 12.82 |
| CdS/Gd2O3@GO | (Halogen lamp, 500 W) | − 0.1333 | 25 | |
| Gd2O3 | − 0.1 | 40 | ||
| CdS/Gd2O3 | Visible | − 0.08 | 50 | |
| Nanofiber | CdS/Gd2O3@GO | (Halogen lamp, 500 W) | − 0.08 | 50 |
| Gd2O3 | − 0.088 | 45.45 | ||
| CdS/Gd2O3 | UV | − 0.0688 | 58.13 | |
| CdS/Gd2O3@GO | (UVC lamp, 15 W) | − 0.0188 | 212.766 | |
