Research Article
Green Synthesis of Nanostructure CeO2 Using Tea Extract: Characterization and Adsorption of Dye from Aqueous Phase
Table 5
Adsorption parameters obtained from the Langmuir, Freundlich, D-R, and Temkin isotherm models.
| | 873K–CeO2 | Comm-CeO2 |
| Langmuir | KL (L/mg) | 0.03 | 0.17 | RL | 0.04–0.27 | 0.01–0.06 | R2 | 0.34 | 0.98 | Freundlich | 1/n | 0.45 | 0.06 | KF | 2.61 | 5.80 | R2 | 0.97 | 0.60 | D-R | K(mol2/kJ2) | 4.92 | 44.22 | E(kJ/mol) | 0.32 | 0.11 | R2 | 0.96 | 0.95 | Temkin | BT (J/mol) | 78.65 | 124.21 | AT (L/mg) | 8.37 | 6.13 | R2 | 0.93 | 0.95 |
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