Amino function Fe₃O₄ @ SiO₂ materials, nano-structured magnetic core with a shell and core (core shell structure) has been developed with the aim to remove heavy metal ions aqueous media. Elemental analysis, FTIR, adsorption, desorption of N₂, electron microscopy, powder X-ray diffraction, X-ray photoelectron spectroscopy, vibrating sample magnetometry analysis, thermal properties and Zeta. A potential check. Surface structure and magnetic characteristics of the absorbent nanoparticles site amino - function of Fe₃O₄ @ SiO₂ absorbing nano relationship absorbing high for solution Cu (II), lead (II) and Cd (II) ions caused. complexation of metal ions in the surface amino groups. It also has ties to absorb heavy metal ions is not much affected by the presence of cosolute of humic acid (10.6 mg / l) or alkaline metal ion (Na⁺, K⁺, Mg. ⁺2) at (0.025-0.30 mmol / L) recovery of metal nanoparticles loaded Fe₃O₄ @ SiO₂-NH₂ by magnetic separation and re-built easily by acid treatment. The present work focused on the potential use of Amino - function Fe₃O₄ @ SiO₂ magnetic nanoparticles as adsorbent effective and can be recycled for removal of heavy metal ions in water and wastewater treatment.
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