Table 3.
Models | Equations | Parameters | Values |
---|---|---|---|
Pseudo-first order model | ln(175.2235-Qt) = 5.1661 − 5.5651t | R2 | 0.7920 |
Qe (mg/g) | 175.2235 | ||
k1 (L/min) | 5.5651 | ||
Pseudo-second order model | t/Qt = 0.0054t + 0.0007 | R2 | 0.9999 |
Qe (mg/g) | 185.1852 | ||
k2 (g/(mg min)) | 0.0417 | ||
Intra-particle diffusion model |
(first stage) |
R2 | 0.9660 |
k3 (mg/(min1/2·g)) | 75.147 | ||
C(mg/g) | 73.414 | ||
(second stage) |
R2 | 0.6008 | |
k3(mg/(min1/2·g)) | 2.2816 | ||
C(mg/g) | 174.45 |