Biosorption of Rare Earth Elements by E. coli
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概要
- 論文の詳細を見る
Biosorption, which takes place by passive metal-sequestering, has recently attracted attention as an alternative to conventional separation processes such as precipitation and solvent extraction. In this work, the adsorption behavior of rare earth elements (REEs) onto an Escherichia coli (E. coli) bacterial adsorbent was examined. The adsorption of REEs increased with increasing pH of the feed solution. Also, E. coli showed a higher selectivity for heavier REEs, especially for Sc. To elucidate the adsorption mechanism, the functional groups on the E. coli were chemically modified. By analyzing the adsorption behavior and FT-IR spectra of these E. coli samples before and after adsorption, it was confirmed that REEs are adsorbed at phosphate and carboxyl groups on the surface of E. coli. It is concluded that E. coli is a potential novel adsorbent for REEs.
著者
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GOTO Masahiro
Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
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Kamiya Noriho
Department Of Applied Chemistry Faculty Of Engineering Kyushu University
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Kubota Fukiko
Department Of Applied Chemistry Faculty Of Engineering Kyushu University
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Goto Masahiro
Department Of Applied Biological Chemistry The University Of Tokyo
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Baba Yuzo
Department Of Applied Chemistry Graduate School Of Engineering Kyushu University
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Hosomomi Yukiho
Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
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