Biosorbents

Pseudo-first order model

Pseudo-second order model

q_exp

q_e

$k_{1_{\text{ads}}}$

R²

q_e

$k_{2_{\text{ads}}}$

h

t_1⁄2

R²

PTT-CH₃COOH

23.966

8.485

0.066

0.988

24.900

0.015

9.523

2.615

0.999

PTT

16.754

38.295

0.322

0.994

18.242

0.019

6.342

2.876

0.998

Biosorbents

Elovich model

External mass transfer

Boyd model

α

β

R²

${\beta }_{L}S\times {10}^3$

R²

B

$D_i\times {10}^9$

R²

PTT-CH₃COOH

0.972

0.419

0.958

2.450

0.768

0.066

2.787

0.988

PTT

0.067

0.411

0.733

2.170

0.442

0.322

13.592

0.994