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Materials 2018, 11(6), 998;

Versatile Poly(Diallyl Dimethyl Ammonium Chloride)-Layered Nanocomposites for Removal of Cesium in Water Purification

Biotechnology Research Division, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute (KAERI), 29, Geumgu-gil, Jeongeup-si, Jeonbuk 56212, Korea
Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100, Inha-ro, Incheon 22212, Korea
Radwaste Management Center, Korea Atomic Energy Research Institute (KAERI), 989, Daedeok-daero, Daejeon 34057, Korea
Department of Energy and Materials Engineering, Dongguk University-Seoul, 30, Pildong-ro 1-gil, Seoul 04620, Korea
Department of Civil and Environmental Engineering, University of Strathclyde, James Weir Building, 75 Montrose St, Glasgow G1 1XJ, UK
Radiation Biotechnology and Applied Radioisotope Science, University of Science and Technology (UST), 217, Gajeong-ro, Daejeon 34113, Korea
These authors contributed equally to this work.
Authors to whom correspondence should be addressed.
Received: 13 April 2018 / Revised: 28 May 2018 / Accepted: 8 June 2018 / Published: 12 June 2018
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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. View Full-Text
Keywords: Prussian blue; magnetic nanoparticles; adsorbent; cesium; magnetic separation Prussian blue; magnetic nanoparticles; adsorbent; cesium; magnetic separation

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Jang, S.-C.; Kang, S.-M.; Kim, G.Y.; Rethinasabapathy, M.; Haldorai, Y.; Lee, I.; Han, Y.-K.; Renshaw, J.C.; Roh, C.; Huh, Y.S. Versatile Poly(Diallyl Dimethyl Ammonium Chloride)-Layered Nanocomposites for Removal of Cesium in Water Purification. Materials 2018, 11, 998.

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