C0(mg/L) Pseudo-first order Pseudo-second order
qe (mg/g) k1 (1/min) R2 qe (mg/g) k2 (g/mg.min) R2
50 1.158 0.0242 0.9376 9.033 0.0485 0.9999
100 5.040 0.0334 0.9848 18.832 0.0153 1.000
200 1.137 0.0256 0.9852 68.985 0.0522 1.000
Table 2: Kinetic parameters for the adsorption of MB (initial concentration=50-200 mg/L, SMWS dosage=0.2 g/100 mL and temperature=298K) onto SMWS based on Lagergren rate equation.