Isotherm model

CR

MG

Langmuir

Qm (mg/g)

55.56

58.82

KL (L/mg)

0.0869

0.0929

RL

0.1632

0.0972

R2

0.994

0.972

SSE (%)

0.747

1.071

Freundlich

n

2.1142

2.0704

Kf (L/g)

7.4989

8.1658

R2

0.980

0.999

SSE (%)

0.947

0.258

Tempkin

bT (J/mg)

230.06

226.95

KT

1.0356

1.2852

R2

0.992

0.953

SSE (%)

0.474

2.685

Dubinin-Radushkevich

qD (mg/g)

33.616

32.753

B (mol2/KJ2)

5 × 10−7

7 × 10−7

E (kJ/mol)

0.0001

0.0001

R2

0.810

0.775

SSE (%)

4.129

5.820