Adsorption isotherm model

Langmuir

Freundlich

Dubinin-Radushkevich (D-R)

qmax

(mg/g)

b

(L/mg)

RL

(at different concentrations)

R2

n

Kf

(L/g)

R2

Xm (mg/g)

β

(mol2/J2)

E

(kJ/mol)

R2

10.83

4.569

0.008 (at 30 mg/L)

0.9740

8.210

6.933

0.4197

11.37

5.0 × 10−6

0.316

0.6046

0.005 (at 40 mg/L)

0.004 (at 50 mg/L)

0.003 (at 70 mg/L)

0.002 (at 100 mg/L)