2017 Fiscal Year Final Research Report
Removal of radioactive substance by porous bodies and thin films of hydroxyapatite and zeolite composite
| Project/Area Number |
15K00578
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Environmental engineering and reduction of environmental burden
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| Research Institution | Ibaraki University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 環境材料 / ハイドロキシアパタイト / ゼオライト |
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| Outline of Final Research Achievements |
The hydroxyapatite (HA) and zeolite composite porous bodies and films were prepared to apply for various conditions of decontamination of radio substances such as strontium (Sr) and cesium (Cs). The porous body of HA/zeolite was prepared from HA and zeolite powders using a gelling freezing method. The porosity of the porous body increased with the charged amount of gel. The maximum adsorptions of Cs and Sr were 15% and 8%, respectively. However, there was not the relationship between the adsorption ratio and the charged amount gel. In the preparation of zeolite films, Natrolite (zeolite) film was synthesized after the hydrothermal treatment, and the HA and zeolite composite films were prepared using mask patterns. The adsorption ratio of Cs and Sr on the HA/zeolite composite films showed around 60% and 20%, respectively.
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| Free Research Field |
生体・環境材料
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