Type of Adsorbent

Pseudo first order

Pseudo second order

K1 (hr−1)

R2

K2 (g/mg∙hr−1)

qe (mg/g)

R2

(a)

0.32

0.690

0.38

0.082

0.953

(b)

0.16

0.749

17.01

0.011

0.793

(c)

0.14

0.864

3.77

0.025

0.982