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Table 5

Parameters of the kinetic models for the adsorption of MO on MOF-5 under different initial concentrations

Pseudo-first-order (PFO)
Pseudo-second-order (PSO)
Elovich model
Co (mg/L)qe.exp (mg/g)qe.cal (mg/g)K1 (min−1)R2qe,cal (mg/g)K2 (g/mg min)R2a (mg/g min)b (g/mg)R2
10 2.24 2.1 0.095 0.975 2.6 5.72E-02 0.994 0.85 1.857 0.969 
30 11.37 10.1 0.098 0.992 12.9 1.26E-02 0.996 4.71 0.374 0.967 
50 78.22 51.2 0.102 0.967 83.5 3.86E-03 0.999 105.69 0.072 0.947 
100 644.01 583.1 0.125 0.976 724.6 2.47E-04 0.994 268.96 6.46E-03 0.930 
150 1,009.35 904.6 0.085 0.962 1,215.7 8.25E-05 0.987 256.78 3.66E-03 0.947 
200 1,270.21 1,181.2 0.086 0.975 1,608.6 4.97E-05 0.974 279.83 2.74E-03 0.940 
250 1,259.68 1,154.6 0.085 0.976 1,558.0 5.65E-05 0.980 293.45 2.84E-03 0.941 
Pseudo-first-order (PFO)
Pseudo-second-order (PSO)
Elovich model
Co (mg/L)qe.exp (mg/g)qe.cal (mg/g)K1 (min−1)R2qe,cal (mg/g)K2 (g/mg min)R2a (mg/g min)b (g/mg)R2
10 2.24 2.1 0.095 0.975 2.6 5.72E-02 0.994 0.85 1.857 0.969 
30 11.37 10.1 0.098 0.992 12.9 1.26E-02 0.996 4.71 0.374 0.967 
50 78.22 51.2 0.102 0.967 83.5 3.86E-03 0.999 105.69 0.072 0.947 
100 644.01 583.1 0.125 0.976 724.6 2.47E-04 0.994 268.96 6.46E-03 0.930 
150 1,009.35 904.6 0.085 0.962 1,215.7 8.25E-05 0.987 256.78 3.66E-03 0.947 
200 1,270.21 1,181.2 0.086 0.975 1,608.6 4.97E-05 0.974 279.83 2.74E-03 0.940 
250 1,259.68 1,154.6 0.085 0.976 1,558.0 5.65E-05 0.980 293.45 2.84E-03 0.941 
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