Table 3 Langmuir, Freundlich and Dubinin–Radushkevich isotherm constants for the adsorption of U(VI) ions onto MOF@PET sorbents.
From: MOF-decorated track-etched membranes for the U(VI) ions sorption removal
Isotherm | Linear equation | Parameter | Value |
|---|---|---|---|
Experiment | - | \(~{q_0}\), mg/g | 418.0 |
Langmuir | \(\frac{{{C_e}}}{{{q_e}}}=\frac{{{C_e}}}{{{Q_0}}}+\frac{1}{{{Q_0}b}}\) | \({Q_0}\), mg/g | 81.30 |
b, l/ml | 125.87 | ||
R2 | 0.95 | ||
Freindlich | \(ln{q_e}=ln{k_F}+\frac{1}{n}ln{C_e}\) | \({k_F}\), mg/g | 5.29 |
n | 0.85 | ||
R2 | 0.99 | ||
Dubinin-Radushkevich | \(ln{q_e}=ln{Q_d} - \beta {\varepsilon ^2}\) | \({Q_d},{\text{mg}}/{\text{g}}\) | 34.8 |
\(\beta\), mol2/kj2 × 104 | 0.002 | ||
\({E_{Dr}}\), kJ/mol | 14.4 | ||
R2 | 0.95 |
