Metal

Langmuir

Freundlich

a_max

(mg·g⁻¹)

b

(L·mg⁻¹)

R²

K

n

R²

NiWS

4.28

0.31

0.983

0.434

1.963

0.989

ZnWS

4.29

0.41

0.992

0.494

1.982

0.969

Cd WS

3.18

0.32

0.947

0.737

3.424

0.993

Ni CG

7.51

0.13

0.988

1.02

1.934

0.962

Zn CG

10.22

0.25

0.982

1.85

2.082

0.974

Cd CG

5.96

0.28

0.994

1.35

2.643

0.98