Versatile poly(diallyl dimethyl ammonium chloride)-layered nanocomposites for removal of cesium in water purification

Jang, Sung-Chan and Kang, Sung-Min and Kim, Gi Yong and Rethinasabapathy, Muruganantham and Haldorai, Yuvaraj and Lee, Ilsong and Han, Young-Kyu and Renshaw, Joanna C. and Roh, Changhyun and Huh, Yun Suk (2018) Versatile poly(diallyl dimethyl ammonium chloride)-layered nanocomposites for removal of cesium in water purification. Materials, 11 (6). ISSN 1996-1944

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    Abstract

    In this work, we elucidate polymer-layered hollow Prussian blue-coated magnetic nanocomposites as an adsorbent to remove radioactive cesium from environmentally contaminated water. To do this, Fe3O4 nanoparticles prepared using a coprecipitation method were thickly covered with a layer of cationic polymer to attach hollow Prussian blue through a self-assembly process. The as-synthesized adsorbent was confirmed through various analytical techniques. The adsorbent showed a high surface area (166.16 m2/g) with an excellent cesium adsorbent capacity and removal efficiency of 32.8 mg/g and 99.69%, respectively. Moreover, the superparamagnetism allows effective recovery of the adsorbent using an external magnetic field after the adsorption process. Therefore, the magnetic adsorbent with a high adsorption efficiency and convenient recovery is expected to be effectively used for rapid remediation of radioactive contamination.