Adsorbent

Through the time

t/min

Quasi first order model

Quasi second-order model

k₁/min⁻¹

R²

k₂/g·mg⁻¹·min⁻¹

R²

13X

95

−0.9543

0.9108

0.4053

0.9982

13x-3wt%CuO

110

−0.9742

0.9490

0.4055

0.9976

13x-6wt%CuO

90

−0.9857

0.9716

0.3984

0.9980

13x-9wt%CuO

60

−0.9942

0.9884

0.3856

0.9943