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Table 3

Constant and correlation coefficients for the kinetic model of Cd(II) and Pb(II) on AMA-5

Heavy metalsQe,expPseudo-first-order
Pseudo-second-order
(mg/g)k1 (1/min)Qe,cal (mg/g)R2k2*10−4 (g/mg·min)Qe,cal (mg/g)R2
Cd(II) 186.37 0.0069 115.32 0.9890 1.4003 192.31 0.9983 
Pb(II) 196.97 0.0096 144.07 0.9843 1.5610 200.00 0.9982 
Heavy metalsQe,expPseudo-first-order
Pseudo-second-order
(mg/g)k1 (1/min)Qe,cal (mg/g)R2k2*10−4 (g/mg·min)Qe,cal (mg/g)R2
Cd(II) 186.37 0.0069 115.32 0.9890 1.4003 192.31 0.9983 
Pb(II) 196.97 0.0096 144.07 0.9843 1.5610 200.00 0.9982 
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