Table 2. Parameters of the Isotherms of Langmuir, Freundlich, and Sips Models for MO Adsorption on the GWW/APTES Adsorbent.
| Langmuir | 298 K | 308 K | 318 K |
|---|---|---|---|
| Qmax (mg g–1) | 314.6 | 345.8 | 340.1 |
| KL (L mg–1) | 0.004296 | 0.005378 | 0.007798 |
| R2adj | 0.9985 | 0.9996 | 0.9986 |
| SD (mg g–1) | 3.620 | 2.060 | 4.171 |
| BIC | 30.41 | 19.13 | 33.24 |
| Freundlich | |||
| KF (mg g–1 (mg L–1)−1/nF) | 15.32 | 21.03 | 29.90 |
| nF | 2.442 | 2.596 | 2.927 |
| R2adj | 0.9541 | 0.9561 | 0.9645 |
| SD (mg g–1) | 20.04 | 22.27 | 20.71 |
| BIC | 64.63 | 66.75 | 80.66 |
| Liu | |||
| Qmax (mg g–1) | 293.8 | 334.7 | 361.8 |
| Kg (L mg–1) | 0.005035 | 0.005818 | 0.006633 |
| nL | 1.144 | 1.070 | 0.8784 |
| Radj2 | 0.9999 | 0.9999 | 0.9999 |
| SD (mg g–1) | 0.7437 | 0.1543 | 0.3496 |
| BIC | –0.2777 | –31.73 | –15.38 |