Table 2 Kinetic parameters of the adsorption at different temperatures.

From: Rare Earth Elements Removal from Water Using Natural Polymers

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