Kinetic models Constant Value
Pseudo-first-order model K1 (1/min) 0.518
  qe (mg/g) 2.251
  r2 0.921
Pseudo-second-order model     qe (mg/g) 2.870
  K2 (g/mg.min) 0.019
  r2 0.996
Elovich model β (g/mg) 3.367
  α (g/mg.min) 6.711
  r2 0.926
Intraparticle diffusion model  Kid (min-1) 26.18
  A 0.279
  r2 0.924
Table 1: Adsorption kinetic model constants.