Table 2 Langmuir, Freundlich and Temkin isotherm parameters for C-500 and PC-500-Y for MB adsorption

Langmuir

q_m (mg/g)

26.39

751.88

877.19

925.93

K_L (L/mg)

0.215

2.057

2.144

0.864

R²

0.99308

0.99998

0.99991

0.99964

Freundlich

1/n

–

0.03491

0.03963

0.0659

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

–

628.4974

717.6759

665.6246

R²

–

0.76173

0.97225

0.98617

Temkin

B_T

–

23.52

29.79

50.56

K_T(L/mg)

–

1.07*10⁹

1.52*10⁸

2.83*10⁴

R²

–

0.77325

0.98262

0.99095