Kinetic parameters Cephalexin Cefixime 20° 40° 60° 20° 40° 60° qe,exp (mg g-1) 184.90 176.50 167.10 171.60 164.10 156.50 Pseudo-first-order model           qe (mg g-1) 21.503 21.852 23.933 27.605 28.510 30.304 k1 (min-1) 0.0977 0.0882 0.0777 0.0773 0.0762 0.0703 R2 0.9886 0.9740 0.9789 0.9737 0.9885 0.9822

Table 3: Kinetic parameters for adsorption of Cephalexin and Cefixime on MgO nanoparticles.