Development of zeolite-magnetite composite materials for radioactive Cs decontamination
| Project/Area Number |
25630294
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Composite materials/Surface and interface engineering
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| Research Institution | Ehime University |
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Principal Investigator |
AONO HIROMICHI 愛媛大学, 理工学研究科, 准教授 (00184052)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 放射性セシウム / 除染 / ゼオライト / Na-P1型 / モルデナイト / マグネタイト / 磁性化 / 複合材料 |
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| Outline of Final Research Achievements |
Zeolite is known as an alkali aluminosilicate having various nano-sized pores in its crystalline structure with Cs+ exchange ability. A new composite material of zeolite and magnetite (Magnetic zeolite) is possible for the magnetic collection after radioactive Cs+ adsorption in soil.
We synthesized the magnetic zeolite of Na-P1-type zeolite from fly-ash and the magnetite, and improved Cs+ adsorption ability. Amoung three kinds of zeolites such as chabazite, clinoptilolite and mordenite exist in nature, the mordenite has a high selectivity for Cs+ ion. The synthesis of mordenite was succeeded by a hydrothermal method using a diatomite of Na, Al and Si sources. The total Cs decontamination rates using magnetic collection after the Cs+ adsorption in water were larger than 90 % for the 20 and 30 wt% magnetite-containing composite materials.
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Report
(3 results)
Research Products
(23 results)
