Table 8 Kinetic variables of Cu (II) ions adsorption on GFLE at 293, 313 and 333oK.
From: Separation of copper ions by nanocomposites using adsorption process
Ordermodel | Parameters | Temperature (°K) | ||
|---|---|---|---|---|
293 | 313 | 333 | ||
Second-order model | C0 Cal. (mg g−1) | 227 | 238 | 232 |
Ce Exp. (mg g−1) | 280 | 280 | 280 | |
K2 (min−1) | 1E−05 | 2E−05 | 2E−05 | |
R2 | 0.98 | 0.97 | 0.96 | |
Pseudo-second-order model | qe Calc. (mg g−1) | 140.84 | 169.49 | 158.73 |
qe Exp. (mg g-−1) | 136 | 156 | 146 | |
Kʹ2 (g mg−1 min−1) | 3.1E−04 | 1.7E−04 | 2.02E−04 | |
R2 | 0.95 | 0.90 | 0.91 | |
\(\chi^{2}\) | 1.2 | 10.49 | 9.98 | |
Pseudo-first-order model | qe Calc. (mg g−1) | 123 | 178 | 300 |
qe Exp. (mg g−1) | 136 | 156 | 146 | |
K1 (g mg−1 min–1) | 0.0197 | 0.0219 | 0.022 | |
R2 | 0.79 | 0.80 | 0.84 | |
\(\chi^{2}\) | 10.99 | 24.82 | 1299 | |
