Synthesis of Magnetic Poly (Thiourea-Amide) Chelating Resin and its Absorption Behavior Towards Pb(II) and Cd(II)ions

Abstract

In this work, a novel magnetic nanocomposite based on aromatic benzoylthiourea as a nanocomposite polymer was synthesized via reaction of substituted amine and terephthalodiisothiocyanate which is obtained by the reaction of terephthaloyl dichloride and potassium thiocyanate. As the phase transfer catalyst, poly(ethyleneglycol400) was tested. Substances 1HNMR, 13CNMR, Elemental analysis were characterized. Thermal properties of obtained polymer (PO) were examined by using TGA-DTG, The polymerization reaction was carried out via surface modification of magnetic nanoparticles (Fe3O4 MNPs) using polymerization process. Various analytical techniques such as field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy, X-ray, and vibrating sample magnetometer (VSM) analyses were used to confirm the structure of the prepared nanocomposite. A sphere morphologies were observed by FE SEM images by the result of polymerization process and fabrication of the synthetic polymeric strands on the surface of the modified Fe3O4 magnetic cores. Surface area of magnetic benzoylthiourea polymers was measured by using the BET. The application of this novel magnetic nanocomposite was applied comparatively The elimination of Ni (II) and Cd(II)ion from aqueous solutions of experimental conditions and parameters including pH, adsorbent dosage, contact time for the removal of heavy metals has also been investigated and antioxidant activities, including the operation of DPPH radical scavenging, were evaluated in vitro, indicating that the poly amid displayed important antioxidant activities.