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首页> 外文会议>International Conference on Applied Engineering, Materials and Mechanics >Development of Adsorbent Prussian Blue (PB) Impregnated through the Grafting of Covalent Organic Polymers (COPs) for the Removal of Radioactivity Cesium (Cs-137)
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Development of Adsorbent Prussian Blue (PB) Impregnated through the Grafting of Covalent Organic Polymers (COPs) for the Removal of Radioactivity Cesium (Cs-137)

机译：通过聚合有机聚合物（COPS）接枝浸渍的吸附剂普鲁士蓝（PB）的研制去除放射性铯（CS-137）

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This study aims to utilize Prussian Blue (PB) to develop a high performance adsorbent for removing radioactive cesium from radioactive accidents. Prussian blue (PB) can adsorb selectively to cesium (Cs), which is high in adsorption efficiency, but has a disadvantage that it is difficult to recover after adsorption, so there is a high concern about secondary environmental pollution. Therefore, this study modified the surface of powder activated carbon (PAC) particles by using covalent organic polymer (COP) for stable immobilization of PB, and developed a PB-impregnated adsorbent (COP-PAC-PB). Synthesis of COP-PAC-PB was performed by sequentially reacting with iron (III) chloride and potassium ferrocyanide solution to synthesize PB in COP pore (In-situ). The maximum adsorption of COP-PAC-PB on cesium was 19 mg / g and the removal efficiency for radioactivity cesium (Cs-137, 60 Bq / kg) was 97.3%. In addition, PB was synthesized by the same method as that of COP-PAC-PB, which is a modification product of the unmodified group (PAC, Ox-PAC), and UV-vis analysis was performed to compare PB desorption characteristics after washing Respectively. In the unmodified group (PAC-PB, Ox-PAC-PB), a large amount of PB was desorbed when washed once to 6 times. In the case of COP-PAC-PB, it was not. As a result, the surface of the PAC particles was effectively modified using COP, and the adsorbent with Prussian blue stably immobilized was developed.
机译：本研究旨在利用普鲁士蓝（PB）开发出高性能吸附剂从放射性事故去除放射性铯。普鲁士蓝（PB）可以选择性地吸附到铯（Cs），这是在吸附效率高，但有一个缺点，即它难以吸附后恢复，所以存在关于二次环境污染较高的关注。因此，本研究通过使用用于PB的稳定的共价固定化的有机聚合物（COP）改性粉末活性炭（PAC）颗粒的表面上，并制定了PB-浸渍吸附剂（COP-PAC-PB）。通过用铁（III）和氯化亚铁氰化钾溶液依次反应以合成PB在COP孔（原位）进行COP-PAC-PB的合成。 COP-PAC-PB的上铯的最大吸附量为19 mg / g和放射性铯（Cs-137，60贝/ kg）的97.3％的去除效率。此外，PB是通过相同的方法合成作为COP-PAC-PB，其是未修饰的基团（PAC，牛-PAC）的改性产物，以及UV-Vis分析的进行比较洗涤后PB解吸特性分别。在未改性的基团（PAC-PB，牛-PAC-PB）中，当洗涤一次〜6次解吸大量PB的。在COP-PAC-PB的情况下，事实并非如此。其结果是，所述PAC颗粒的表面用COP被有效改性，并与普鲁士蓝吸附剂稳定地固定化的开发。

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