Preparation, characterization, and adsorption properties of bis-salophen schiff base ligand immobilized on Fe3O4@SiO2 nanoparticles for removal of lead(II) from aqueous solutions

Document Type : Original Article

Authors

1 Chemistry and Process Research Department, Niroo Research Institute (NRI), Tehran, Iran

2 Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran

Abstract

Here in this research a novel bis-salophen schiff base ligand anchored magnetic Fe3O4@SiO2 nanoparticles was prepared and applied for removal of Pb(II) from aqueous solutions. The obtained adsorbent Fe3O4@SiO2/Schiff base MNPs was characterized by using broad range of characterization techniques including fourier transform infrared (FT-IR), X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray analysis (EDX) and vibration sample magnetometry (VSM). After synthesizing bis-salophen schiff base ligand immobilized on Fe3O4@SiO2 nanoparticles, the adsorption activity of this adsorbent for lead ions by nonmagnetic, in terms of effect of adsorbent dosage on the adsorption and kinetics behavior was investigated in detail. Furthermore, the adsorption and regeneration experiment showed there was about 91% in the adsorption capacity of the prepared Fe3O4@SiO2/Schiff base MNPs for lead. Finally, our results suggested that the Fe3O4@SiO2/Schiff base composites have a great potential to be employed for treatment of water and wastewater containing lead(II).

Keywords

Main Subjects

This is an open access article under the CC-BY-SA 4.0 license.( https://creativecommons.org/licenses/by-sa/4.0/)

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Applied Chemistry Today
Volume 18, Issue 66
April 2023
Pages 125-146

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