| Project/Area Number |
24651084
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Environmental technology/Environmental materials
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| Research Institution | Waseda University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 環境材料 / 環境修復技術 / 高分子合成 / セシウムイオン / クラウンエーテル / カリックスアレーン / ポリイミド / ナノ材料 / 除染 / ポリイミド薄膜 / ナノシート |
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| Research Abstract |
By the accident of Fukushima Daiichi nuclear power plant at March 11, 2011, highly concentrated radioactive materials were strewn in the environment. Removal of radioactive cesium has become a serious issue. In this study, we prepared an organic macrocyclic compound for cesium ion capturing by complexation and cosedimentation.
In 2012, the several candidates were screened by an ESI-MS-CAD method and one compound was designed and synthesized. In 2013, the compound was synthesized in a large scale to successfully obtain a polyamide with high molecular weight. Then we prepared a thin film with a high dense cesium ion binding sites and evaluated the trapping ability and ion-selectivity by using a QCM method,and the association constant and partition coefficient by an IPC-MS method. Though the ion-selectivity was inferior to that of inorganic cesium ion adsorbents, the trapping ability is equivalent and seemed to be a good material that would have the reducing volume effect by incineration.
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