Table 10 Pseudo 1st and 2nd order kinetic model parameters.

From: Enhanced metal ion adsorption using ZnO-MXene nanocomposites with machine learning-based performance prediction

Kinetic models

Constants

Metal Ions

Chromium (Cr)

Cadmium (Cd)

Lead (Pb)

Arsenic (As)

Pseudo 1st Order

K1

0.090

0.000096

0.032

0.076

Qe (mg/g)

0.00126

0.000054

0.00088

0.00387

R2

0.70

0.99

0.99

0.98

Pseudo 2nd Order

K1

10.09

5.25

13.51

19.78

Qe (mg/g)

0.12

0.008

0.06

0.04

R2

0.99

0.99

0.99

0.99

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