Table 4. Kinetics Models and Parameters for Adsorption of Pb2+ onto the CFA/GO/WO3 Nanocomposite.
temperature
(°C) |
|||
---|---|---|---|
parameters | 25 | 35 | 45 |
pseudo-second-order | |||
qe (mg g–1) | 29.8713 | 4.6720 | 4.4653 |
R2 | 0.97823 | 0.94011 | 0.87575 |
k2 (g mg–1 min–1) | 0.0344 | 1.7394 | 1.6938 |
intraparticlediffusion model | |||
ki (mg/g/min0.5) | 0.5453 | 1.1861 | 1.9305 |
C (mg/g) | 26.3619 | 15.6896 | 15.9479 |
R2 | 0.0082 | 0.4339 | 0.2493 |