Table 2 Isotherm modeling parameters for the removal of Cd by the MBA nano-hybrid: (a) Langmuir, (b) Freundlich (c) and Temkin. (pH = 7.0, adsorbent = 1.0 g/L, temperature = 25 °C, optimum time = 60 min).

From: Dual immobilization of magnetite nanoparticles and biosilica within alginate matrix for the adsorption of Cd(II) from aquatic phase

Isotherm equation

Kinetic parameters

Values

Langmuir

qm(mg/g)

35.36

b

0.73

RL

0.026

r2

0.99

Freundlich

n

7.32

KF(mg/g(L/mg)1/n)

1.27

r2

0.72

Temkin

A

3.72

B

6.45

r2

0.91

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