Table 2 The parameters of the Langmuir and Freundlich models fitted to the experimental data of Pb(II) adsorption on SA-Zn-HZ and SA-Zn₃Al-HT

q _{e, exp}

(mg g⁻¹)

q _m

(mg g⁻¹)

k _L

(L mg⁻¹)

R ²

n

k _F

((mg g⁻¹)(L mg⁻¹)^1/n)

R ²