Research Article
Green Synthesis of Nanostructure CeO2 Using Tea Extract: Characterization and Adsorption of Dye from Aqueous Phase
Table 4
Fitting results for the first-order and second-order kinetic models.
| | First-order model | Second-order model | Sample | Qexp (mg/g) | k1 (1/min) | R2 | Qfit (mg/g) | k2 (1/min) | R2 | Qfit (mg/g) |
| 873K–CeO2 | 9.55 ± 0.21 | 0.02 | 0.44 | 41.66 ± 1.23 | 0.11 | 0.99 | 9.50 ± 0.54 | Comm-CeO2 | 8.61 ± 0.17 | 0.03 | 0.37 | 30.30 ± 0.87 | 0.25 | 0.99 | 4.07 ± 0.22 |
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