| 초록 |
A large amount of radioactive material was released in 2011 due to an accident at the Fukushima nuclear power plant. Radioactive cesium, which is contained in the released radioactive material, is harmful to humans and crops because of its long half-life. Because it is highly soluble in water, it easily pollutes the environment near the radiation leak. Therefore, radioactive cesium must be removed. Prussian blue (PB) has a very high adsorption capacity selectively for cesium ions and is used as an adsorbent. However, since PB particles form colloids in water, they can easily contaminate water. In addition, it is difficult to separate PB particles from aqueous solution. Therefore, it is necessary to attach PB particles to the nanofibers to easily separate them from aqueous solution. The nanofibers were electrospun using polyacrylonitrile (PAN) and the surfaces of the PAN nanofibers were coated with polydopamine to attach PB particles. After that, we tested the adsorption of cesium ions. |
