文章基本信息

标题：A Magnetic Carbon Sorbent for Radioactive Material from the Fukushima Nuclear Accident
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作者：Daizo Yamaguchi ; Kazumi Furukawa ; Masaya Takasuga 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2014
卷号：4
DOI：10.1038/srep06053
出版社：Springer Nature
摘要：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 (¹³⁴Cs and ¹³⁷Cs 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.