Table 1 Kinetic models and isotherm models for TC adsorption onto CPL − AC.

From: Sustainable activated carbon from copper pod tree leaves for efficient tetracycline removal and regeneration

Name of the Models

Parameters

Values

Kinetic Models

Pseudo First Order

\(\:{k}_{1}\left({min}^{-1}\right)\)

0.12278

\(\:{q}_{e}\) (mg/g)

78.68

\(\:{R}^{2}\)

0.9238

χ²

59.59

SSE

476.74

Pseudo Second Order

\(\:{\:\:\:K}_{2\:\:\:}\)(g/mg.min)

0.00206

\(\:{q}_{e}\:\)(mg/g)

85.27

\(\:{R}^{2}\)

0.9765

χ2

18.30

SSE

146.45

Intraparticle Diffusion

KP ((mg/g) min 0.5)

5.32047

R2

0.7895

χ2

164.56

SSE

1316.52

Isotherm models

Langmuir

qm (mg/g)

103.32

KL (L/mg)

1.1

\(\:{R}^{2}\)

0.9952

χ2

9.29162

SSE

37.16

Freundlich

KF ((mg/g)/(L/mg)1/n

54.97

1/n

0.214

\(\:{R}^{2}\)

0.9358

χ2

124.63

SSE

498.52

Temkin

BT (J/mol)

16.9

Kt (L/mg)

23.84

\(\:{R}^{2}\)

0.917

χ2

85.84

SSE

257.52