A Magnetic Carbon Sorbent for Radioactive Material from the Fukushima Nuclear Accident

被引：28
|
作者：
Yamaguchi, Daizo [1 ]
Furukawa, Kazumi [2 ]
Takasuga, Masaya [2 ]
Watanabe, Koki [1 ]
机构：
[1] Inst Natl Coll Technol, Tsuyama Natl Coll Technol, Dept Mech Engn, Tsuyama City, Okayama 7088509, Japan
[2] Motoyama Gokin Seisakusyo Co Ltd, Tsuyama City, Okayama 7081104, Japan
来源：
SCIENTIFIC REPORTS | 2014年 / 4卷
关键词：
CATION SIEVE PROPERTIES; MESOPOROUS CARBONS; ION-EXCHANGE; OXIDE; MICROPARTICLES; NANOPARTICLES; PURIFICATION; PERFORMANCE; COMPOSITES; DEPOSITION;
D O I：
10.1038/srep06053
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Here we present the first report of a carbon-gamma-Fe2O3 nanoparticle composite of mesoporous carbon, bearing COOH- and phenolic OH-functional groups on its surface, a remarkable and magnetically separable adsorbent, for the radioactive material emitted by the Fukushima Daiichi nuclear power plant accident. Contaminated water and soil at a level of 1,739 Bq kg(-1) (Cs-134 and Cs-137 at 509 Bq kg(-1) and 1,230 Bq kg(-1), respectively) and 114,000 Bq kg(-1) (134Cs and 137Cs at 38,700 Bq kg(-1) and 75,300 Bq kg(-1), respectively) were decontaminated by 99% and 90% respectively with just one treatment carried out in Nihonmatsu city in Fukushima. Since this material is remarkably high performance, magnetically separable, and a readily applicable technology, it would reduce the environmental impact of the Fukushima accident if it were used.
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页数：7
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