First-order model

q_e (mg∙g⁻¹) experimental

q_e calculated

k₁ (min⁻¹)

R²

6.25

4.12

0.117

0.988

Second-order model

q_e calculated

k₂ (g∙mg⁻¹∙min⁻¹)

R²

6.369

0.0747

0.999

Elovich model

a (mg∙g⁻¹∙min⁻¹)

b (g∙mg⁻¹)

R²

9.5

0.919

0.991

Weber-Morris model

k_id (mg∙g⁻¹∙min^−0.5)

C

R²

0.708

2.22

0.911