Table 2 Kinetic model parameters of Cr(VI).

From: A chitosan fiber as green material for removing Cr(VI) ions and Cu(II) ions pollutants

C(mg/L)

Quasi-first order kinetic equation

Quasi-second-order kinetic equation

Set

Linear regression equation

R12

Linear regression equation

R22

50

y = − 0.0235*X + 2.0467

0.9713

y = 0.0373*X + 0.1869

0.9974

100

y = − 0.0429*X + 3.7166

0.9344

y = 0.0187*X + 0.0409

0.9991

150

y = − 0.0341*X + 2.7682

0.9833

y = 0.0127*X + 0.0593

0.9988