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Table 2 The Summary of Freundlich, Langmuir Isotherms, Temkin and Dubinin-Radushkevich Isotherm Models

From: Three different methods for ZnO-RGO nanocomposite synthesis and its adsorption capacity for methylene blue dye removal in a comparative study

Composite

Freundlich Isotherm

Kf (mg/g)

n

1/n

R2

A1

4.70

1.36

0.73

0.9858

A2

5.278

1.31

0.75

0.9896

A3

13.21

1.33

0.74

0.9682

Composite

Langmuir Isotherm

qm (mg/g)

KL

RL

R2

A1

87.70

0.05

0.66

0.9760

A2

97.50

0.05

0.66

0.9904

A3

104.50

0.18

0.35

0.9959

Composite

Temkin Isotherm

B (J/mol)

bt (J/mol)

Kt (L/g)

R2

A1

15.21

162.89

0.85

0.9463

A2

16.07

154.17

0.85

0.9472

A3

20.42

121.33

2.36

0.9687

Composite

Dubin-Raduskevich Isotherm

qm (mg/g)

E (KJ/mol)

β (mol/kJ)

R2

A1

27.85

0.79

8*10–7

0.7345

A2

29.10

0.79

8*10–7

0.7606

A3

47.06

1.58

2*10–7

0.7734

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BMC Chemistry

ISSN: 2661-801X

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