一种用于吸附福岛核事故放射性物质的磁性碳吸附剂。
A magnetic carbon sorbent for radioactive material from the Fukushima nuclear accident.
作者信息
Yamaguchi Daizo, Furukawa Kazumi, Takasuga Masaya, Watanabe Koki
机构信息
Department of Mechanical Engineering, Tsuyama National College of Technology, Institute of National Colleges of Technology, 624-1 Numa, Tsuyama-City, Okayama 708-8509, Japan.
Motoyama Gokin Seisakusyo Co., Ltd., 1645-20 Ayabe aza Midoriyama, Tsuyama-City, Okayama 708-1104, Japan.
出版信息
Sci Rep. 2014 Aug 13;4:6053. doi: 10.1038/srep06053.
Here we present the first report of a carbon-γ-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) ((134)Cs and (137)Cs at 509 Bq kg(-1) and 1,230 Bq kg(-1), respectively) and 114,000 Bq kg(-1) ((134)Cs and (137)Cs 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.
在此，我们首次报告了一种介孔碳与γ-Fe₂O₃纳米颗粒的复合材料，其表面带有COOH和酚羟基官能团，是一种用于吸附福岛第一核电站事故所排放放射性物质的卓越且可磁分离的吸附剂。在福岛二本松市进行的一次处理中，受污染水平分别为1739 Bq kg⁻¹（¹³⁴Cs和¹³⁷Cs分别为509 Bq kg⁻¹和1230 Bq kg⁻¹）的水和土壤以及114000 Bq kg⁻¹（¹³⁴Cs和¹³⁷Cs分别为38700 Bq kg⁻¹和75300 Bq kg⁻¹）的水和土壤，去污率分别达到了99%和90%。由于这种材料具有卓越的性能、可磁分离且是一种易于应用的技术，如果加以使用，将减少福岛事故对环境的影响。
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