Table 1. Pseudo-first and pseudo-second-order constants and values of R² for MG adsorption to wood adsorbent.

q_{e, exp}

(mg g^-1)

First order

Second order

q_1,cal

(mg g^-1)

k₁

(min^-1)

R²

q_2,cal

(mg g^-1)

k₂

(g mg^-1 min^-1)

u

(mg g^-1 min^-1)

t_1/2

(min)

r

36.0

11.98

0.022

0.85

36.38

0.0064

8.52

4.29

0.999