Table 2 Kinetic parameters.

From: Adsorption of Cr(VI) ions from wastewater using water-based polyacrylic resin

Kinetic equation

Parameter

Value

R2

Quasi-first-order

Qe (mg/g)

0.0848

0.9044

K1 (1/min)

0.0059

Quasi-second-order

Qe (mg/g)

0.0731

0.9927

K2 (1/min)

0.0740

K2Qe2 (mg/(mgmin))

3.954 × 10–4