Table 2.
Kinetic parameters of the adsorption at different temperatures.
Temperature (K) | Pseudo - first - order kinetic | Pseudo - second - order kinetic | |||||
---|---|---|---|---|---|---|---|
qe,exp (mg/g) | k1 (1/min) | qe,calc (mg/g) | R2 | k2 (g/mg∙min) | qe,calc (mg/g) | R2 | |
Eu (III) | |||||||
298 | 10.26 | 0.0317 | 3.60 | 0.4342 | 4.11∙10−3 | 11.57 | 0.9849 |
308 | 10.33 | 0.0336 | 3.66 | 0.4722 | 4.08∙10−3 | 11.60 | 0.9856 |
318 | 10.37 | 0.0347 | 3.64 | 0.4786 | 4.02∙10−3 | 11.70 | 0.9858 |
Nd (III) | |||||||
298 | 11.68 | 0.0552 | 5.48 | 0.6238 | 3.55∙10−3 | 13.86 | 0.9729 |
308 | 11.71 | 0.0557 | 5.17 | 0.6273 | 3.31∙10−3 | 13.66 | 0.9784 |
318 | 11.74 | 0.0589 | 5.27 | 0.6794 | 3.15∙10−3 | 13.58 | 0.9824 |