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Table 3

Adsorption rate constants for three kinetic models of CBZ adsorption on Fe0-rGO

pHPseudo-first order
Pseudo-second order
Intrapartcile diffusion
K1 (min−1)qe (mg.g−1)R2R2adjK2 (g.mg−1. min−1)qe (mg.g−1)R2R2adjKi (kg (mg min0.5)−1)C (mg.g−1)R2R2adj
3.0 0.079 10.73 0.984 0.972 0.0137 19.67 0.999 0.999 2.14 5.92 0.933 0.910 
5.5 0.076 10.32 0.974 0.966 0.0079 17.54 0.998 0.998 2.10 2.92 0.933 0.912 
7.0 0.056 9.91 0.985 0.978 0.0070 15.38 0.996 0.995 1.91 2.04 0.963 0.951 
8.0 0.064 8.98 0.954 0.949 0.0120 15.15 0.999 0.999 1.80 3.60 0.930 0.913 
pHPseudo-first order
Pseudo-second order
Intrapartcile diffusion
K1 (min−1)qe (mg.g−1)R2R2adjK2 (g.mg−1. min−1)qe (mg.g−1)R2R2adjKi (kg (mg min0.5)−1)C (mg.g−1)R2R2adj
3.0 0.079 10.73 0.984 0.972 0.0137 19.67 0.999 0.999 2.14 5.92 0.933 0.910 
5.5 0.076 10.32 0.974 0.966 0.0079 17.54 0.998 0.998 2.10 2.92 0.933 0.912 
7.0 0.056 9.91 0.985 0.978 0.0070 15.38 0.996 0.995 1.91 2.04 0.963 0.951 
8.0 0.064 8.98 0.954 0.949 0.0120 15.15 0.999 0.999 1.80 3.60 0.930 0.913 
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