Published on November 2020 | Material science

Adsorption of Ni (II) ions from aqueous solution on the DMSA functionalized magnetic nanoadsorbents

The magnetic nanoparticles (MNPs) were synthesized by the thermal decomposition method and functionalized with meso-2,3-dimercaptosuccinic acid (DMSA). The MNP-DMSA were used as a nanoadsorbents for the removal of Ni(II) ions from aqueous solution. MNPs were characterized by X-ray diffraction (XRD), field emissionscanning electron microscopy (FESEM), and vibrating sample magnetometer (VSM). The MNPs have magnetite phase with a particle size around 25 nm. The magnetic measurement showed that MNPs exhibits superparamagnetic nature with a saturation magnetization of 44 emu/g. The batch adsorption experiments were carried out to remove Ni(II) by optimizing the contact time and initial Ni(II) concentration. The maximum 60 % efficiency was achieved for Ni(II) metal ions removal from the aqueous solution.