수질오염 제염을 위한 세슘 선택성 상자성 코어 무기복합제염제 개발
Development of Cesium-selective Paramagnetic Core Inorganic Composite Agent for Water Decontamination
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Large amounts of liquid radioactive waste or radioactive contaminated water could be produced duringthe treatment of radiation accidents or during the dismantling and decontamination process of nuclear power plants. Since most of the decontamination agents to date are difficult to recover after adsorption of radioactive isotopes, theiruse in open environments such as rivers, reservoirs, or oceans is limited. In this study, as a radioactive decontaminationagent that can overcome the current limitations when used in an open environment, a paramagnetic core inorganiccomposite (PMCIC) decomposite agent with high selectivity to cesium ions was developed. PMCore was preparedby synthesizing paramagnetic iron oxide nanoparticles, and inorganic crystals such as metal-ferrocyanide were conjugatedto the surface so that PMCore could be selective to cesium ions. The developed PMCIC could be easily recoveredfrom the water by magnetism and could adsorb up to 94 μM of Cs atoms per 1 g of PMCIC.
Abstract
Large amounts of liquid radioactive waste or radioactive contaminated water could be produced duringthe treatment of radiation accidents or during the dismantling and decontamination process of nuclear power plants. Since most of the decontamination agents to date are difficult to recover after adsorption of radioactive isotopes, theiruse in open environments such as rivers, reservoirs, or oceans is limited. In this study, as a radioactive decontaminationagent that can overcome the current limitations when used in an open environment, a paramagnetic core inorganiccomposite (PMCIC) decomposite agent with high selectivity to cesium ions was developed. PMCore was preparedby synthesizing paramagnetic iron oxide nanoparticles, and inorganic crystals such as metal-ferrocyanide were conjugatedto the surface so that PMCore could be selective to cesium ions. The developed PMCIC could be easily recoveredfrom the water by magnetism and could adsorb up to 94 μM of Cs atoms per 1 g of PMCIC.
참고문헌 (9)
- Yury V. Kolen’ko, "Large-scale synthesis of colloidal Fe3O4 nanoparticles exhibiting high heating efficiency in magnetic hyperthermia", The Journal of Physical Chemistry C, 118(16), pp.8691~8701 (2014)[DOI]
- Sun Sheng-Nan, "Magnetic iron oxide nanoparticles: Synthesis and surface coating techniques for biomedical applications", Chinese Physics B, 23(3), pp.037503~ (2014)[DOI]
- Sophie Laurent, "Nanoparticles, Magnetic Iron Oxide: Synthesis, Stabilization, Vectorization, Physicochemical Characterizations, and Biological Applications Laurent", 108(6), pp.2064~2110 (2008)[DOI]
- Sun, Shouheng, "Size-controlled synthesis of magnetite nanoparticles", Journal of the American Chemical Society, 124(28), pp.8204~8205 (2002)[DOI]
- Fei Ye, "Uniform mesoporous silica coated iron oxide nanoparticles as a highly efficient, nontoxic MRI T2 contrast agent with tunable proton relaxivities", Contrast media & molecular imaging, 7(5), pp.460~468 (2012)[DOI]
- Du, Xin, "Spherical silica micro", nanomaterials with hierarchical structures: synthesis and applications, 2011, pp.3(10), 3984~4002
- Nakazawa, Jun, "Controlled loadings in a mesoporous material:click-on silica", Journal of the American Chemical Society, 130(44), pp.14360~14361 (2008)[DOI]
- Raphaël Turgis, "An original “click and bind”approach for immobilizing copper hexacyanoferrate nanoparticles on mesoporous silica", Chemistry of Materials, 25(21), pp.4447~4453 (2013)
- C Loos-Neskovic, "Structure of copper-pota ssium hexacyanoferrate (II) and sorption mechanisms of cesium", Journal of solid state chemistry, 177(6), pp.1817~1828 (2004)