Sorbent

Langmuir model

Freundlich model

Dubinin-Radushkevich

Flory-Huggins

Fe-Oxide

q_max(mg/g)

b

R_L

K_f

1/n

E (kJ/mol)

β

n

∆G (kJ/mol)

70.42

0.57

0.038

26.06

0.35

1.89

−0.14

−1.28

−21.36