Microscopic analyses of complexes formed in adsorbent for Mo and Zr separation chromatography

Ryoji Abe; Kohei Nagoshi; Tsuyoshi Arai; Sou Watanabe; Yuichi Sano; Haruaki Matsuura; Hideaki Takagi; Nobutaka Shimizu; Masashi Koka; Takahiro Sato

doi:10.1016/j.nimb.2017.02.082

Microscopic analyses of complexes formed in adsorbent for Mo and Zr separation chromatography

Ryoji Abe, Kohei Nagoshi, Tsuyoshi Arai, Sou Watanabe, Yuichi Sano, Haruaki Matsuura, Hideaki Takagi, Nobutaka Shimizu, Masashi Koka, Takahiro Sato

研究成果: Article › 査読

6 被引用数 (Scopus)

抄録

Molybdenum and zirconium obstruct the efficient recovery of minor actinides (MA(III): Am(III) and Cm(III)) by extraction chromatography; hence, the removal of these elements prior to MA(III) recovery is desirable. The use of an adsorbent impregnated with bis(2-ethylhexyl) hydrogen phosphate (HDEHP) for Mo and Zr decontamination was evaluated in this report. The adsorption/elution and column separation experiments showed that Mo and Zr in the simulated HLLW were selectively adsorbed on the particles, and that Mo was eluted by H₂O₂. EXAFS analysis and SAXS patterns of the adsorbent containing Zr revealed that the Zr-HDEHP complex had a crystal-like periodic structure similar to the structure of the precipitate produced in the solvent extraction system. Micro-PIXE analysis revealed that distribution of the residual Zr on the adsorbent was uniform.

本文言語	English
ページ（範囲）	173-178
ページ数	6
ジャーナル	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
巻	404
DOI	https://doi.org/10.1016/j.nimb.2017.02.082
出版ステータス	Published - 2017 8月 1

ASJC Scopus subject areas

核物理学および高エネルギー物理学
器械工学

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10.1016/j.nimb.2017.02.082

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引用スタイル

Abe, R., Nagoshi, K., Arai, T., Watanabe, S., Sano, Y., Matsuura, H., Takagi, H., Shimizu, N., Koka, M., & Sato, T. (2017). Microscopic analyses of complexes formed in adsorbent for Mo and Zr separation chromatography. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 404, 173-178. https://doi.org/10.1016/j.nimb.2017.02.082

Abe, R, Nagoshi, K, Arai, T, Watanabe, S, Sano, Y, Matsuura, H, Takagi, H, Shimizu, N, Koka, M & Sato, T 2017, 'Microscopic analyses of complexes formed in adsorbent for Mo and Zr separation chromatography', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 404, pp. 173-178. https://doi.org/10.1016/j.nimb.2017.02.082

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abstract = "Molybdenum and zirconium obstruct the efficient recovery of minor actinides (MA(III): Am(III) and Cm(III)) by extraction chromatography; hence, the removal of these elements prior to MA(III) recovery is desirable. The use of an adsorbent impregnated with bis(2-ethylhexyl) hydrogen phosphate (HDEHP) for Mo and Zr decontamination was evaluated in this report. The adsorption/elution and column separation experiments showed that Mo and Zr in the simulated HLLW were selectively adsorbed on the particles, and that Mo was eluted by H2O2. EXAFS analysis and SAXS patterns of the adsorbent containing Zr revealed that the Zr-HDEHP complex had a crystal-like periodic structure similar to the structure of the precipitate produced in the solvent extraction system. Micro-PIXE analysis revealed that distribution of the residual Zr on the adsorbent was uniform.",

keywords = "EXAFS, Extraction chromatography, SAXS, Zr, micro-PIXE",

author = "Ryoji Abe and Kohei Nagoshi and Tsuyoshi Arai and Sou Watanabe and Yuichi Sano and Haruaki Matsuura and Hideaki Takagi and Nobutaka Shimizu and Masashi Koka and Takahiro Sato",

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AU - Abe, Ryoji

AU - Nagoshi, Kohei

AU - Arai, Tsuyoshi

AU - Watanabe, Sou

AU - Sano, Yuichi

AU - Matsuura, Haruaki

AU - Takagi, Hideaki

AU - Shimizu, Nobutaka

AU - Koka, Masashi

AU - Sato, Takahiro

PY - 2017/8/1

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N2 - Molybdenum and zirconium obstruct the efficient recovery of minor actinides (MA(III): Am(III) and Cm(III)) by extraction chromatography; hence, the removal of these elements prior to MA(III) recovery is desirable. The use of an adsorbent impregnated with bis(2-ethylhexyl) hydrogen phosphate (HDEHP) for Mo and Zr decontamination was evaluated in this report. The adsorption/elution and column separation experiments showed that Mo and Zr in the simulated HLLW were selectively adsorbed on the particles, and that Mo was eluted by H2O2. EXAFS analysis and SAXS patterns of the adsorbent containing Zr revealed that the Zr-HDEHP complex had a crystal-like periodic structure similar to the structure of the precipitate produced in the solvent extraction system. Micro-PIXE analysis revealed that distribution of the residual Zr on the adsorbent was uniform.

AB - Molybdenum and zirconium obstruct the efficient recovery of minor actinides (MA(III): Am(III) and Cm(III)) by extraction chromatography; hence, the removal of these elements prior to MA(III) recovery is desirable. The use of an adsorbent impregnated with bis(2-ethylhexyl) hydrogen phosphate (HDEHP) for Mo and Zr decontamination was evaluated in this report. The adsorption/elution and column separation experiments showed that Mo and Zr in the simulated HLLW were selectively adsorbed on the particles, and that Mo was eluted by H2O2. EXAFS analysis and SAXS patterns of the adsorbent containing Zr revealed that the Zr-HDEHP complex had a crystal-like periodic structure similar to the structure of the precipitate produced in the solvent extraction system. Micro-PIXE analysis revealed that distribution of the residual Zr on the adsorbent was uniform.

KW - EXAFS

KW - Extraction chromatography

KW - SAXS

KW - Zr

KW - micro-PIXE

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Microscopic analyses of complexes formed in adsorbent for Mo and Zr separation chromatography

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