Effects of Gum Arabic-Coated Magnetite Nanoparticles on the Removal of Pb Ions from Aqueous Solutions

To study the removal of lead (Pb) ions from aqueous solutions, novel magnetite nanoparticles (NPs) Ni0.31Mg0.15Ag0.04Fe2.5O4 were synthesized by coprecipitation synthesis using metal sulfates, and then coated with Gum Arabic (GA). The prepared NPs analyzed various spectroscopic analytical methods, such as X-Ray diffraction analysis (XRD), Field Emission Scanning Electron Microscopy (FE-SEM), Energy Dispersive X-ray spectroscopy (EDX), Fourier Transform Infra-Red (FT-IR), Atomic Absorption Spectrophotometer (AAS). By XRD analysis, cubic inverse spinel structure was proven, showing average values crystallite size, lattice constant, density 28.57nm, 8.32582Å, 5.2890 g/cm3, respectively. FE-SEM revealed sphere-like shape a measured size 25.93nm. existence constituent elements evidenced EDX. FT-IR test proved success coating process presence main characteristic absorption bands GA in spectrum GA-magnetite NPs. adsorption Pb GA- shown AAS where concentration decreased 25ppm to 6.6ppm, reaching 1.1ppm at time 25min. porosity carboxyl groups played an important role process.