초록 |
In 2011, as nuclear power plant accident occurred in Fukushima, Japan, large amounts of radioactive materials were released in the nature. Among them, cesium is soluble in water and can be introduced into the body through various methods. Cesium that enters the body collects in the tissue and harms the human body by releasing harmful gamma rays. For removing hazardous cesium, cation-exchange resins containing sulfonic acid group were often used. We prepared more efficient adsorbents by synthesizing Prussian blue (PB) which had ability to adsorb cesium selectively on the surface of cation-exchange resin. Polydopamine was employed to provide the stability for cation-exchange resin. Adsorbents prepared were stable from external environment because cation-exchange resins were coated with polydopamine. |