Decoration of maleic/acrylic acid onto CoFe₂O₄ as a high-performance nanosorbent for the removal of lead(II) and cadmium(II) from environmental samples

ABSTRACT

In this research, CoFe₂O₄-SiO₂-gly-P(AA-MA) so-called CFSP was synthesized and characterized successfully. The as made adsorbent was utilized for the removal of Pb(II) and Cd(II). Different experimental conditions on the adsorption process were optimized and evaluated, respectively. In the following, adsorption isotherms and kinetics of both ion metals were studied in a batch system. The best-fitting isotherm was found to be the Langmuir with correlation coefficients (R²) of 0.9994 for Cd²⁺and 0.9990 for Pb²⁺. Also, the results revealed that the experimental data were better fitted to pseudo second-order kinetic model for both Pb²⁺ and Cd²⁺than the other studied models.

KEYWORDS:

• Adsorption
• magnetic nanocomposite
• pseudo-second order
• wastewater

Additional information

Funding

The authors would like to thank the University of Zanjan and Calcimin Research Center for their financial supports.