Table 4.
Coefficients of the pseudo-first-order, second-order adsorption kinetic, Avrami, and intraparticle diffusion models for adsorption of FLX by LAC.
| Kinetic models | Equation | Parameters | LAC |
|---|---|---|---|
| Pseudo-first-order | qt = qe (1 − e−k1t) | K1 | 0.037 |
| Qe | 34.36 | ||
| R2 | 0.98 | ||
| Pseudo-second-order |
qt = qe2k2t 1 + qek2t |
K2 | 0.0012 |
| Qe | 39.32 | ||
| R2 | 0.99 | ||
| Mixed 1,2 order | qt = qe (1 − exp(− kt)1 − f2exp(− kt) | K | 0.04 |
| Qe | 34.36 | ||
| F2 | 0 | ||
| R2 | 0.98 | ||
| Avrami | qt = qe[1 − exp(− kavt)nav] | Qe | 34.01 |
| Kav | 0.40 | ||
| nav | 0.1 | ||
| R2 | 0.99 | ||
| Intraparticle diffusion | qt = Kip√t + Cip | Kip | 1.93 |
| Cip | 10.5 | ||
| R2 | 0.69 |