Table 8 Characteristics of Isotherm models for the Adsorption of TH Dye on CS-CY/Benz/Fe3O4.

From: Characterization optimization of synthesis Chitosanclay/benzoin/Fe3O4 composite for adsorption of Thionine dye by design expert study

Adsorption isotherm

Parameter

Value

Freundlich

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

163.11

N

2.3

R2

0.96

Langmuir

qmax (mg/g)

835.06

Ka (L/mg)

0.125

R2

0.88

Temkin

KT (L/mg)

4.42

bT (J/mol)

124.82

R2

0.89

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