Table 2 Isotherm constants for adsorption of GA-AgNPs onto Fe₃O₄@PDA.

q_{e, exp}

Langmuir model

Freundlich model

Dubinin-Radushkevich model

b (L/mg)

q_max (mg/g)

r²

n

k_f

r²

q_max (mg/g)

β (mol²/kJ²)

r²