Selective uptake of plutonium (IV) on calcium alginate gel polymer and TBP microcapsule

Yan Wu; Hitoshi Mimura; Yuichi Niibori

doi:10.1007/s10967-009-0022-x

Selective uptake of plutonium (IV) on calcium alginate gel polymer and TBP microcapsule

Yan Wu, Hitoshi Mimura, Yuichi Niibori

ENG - Quantum Science and Energy Engineering

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

The uptake behavior of Pu(IV) has been investigated by using calcium alginate gel polymer (CaALG) and TBP microcapsules (TBP-CaALG). The characterization of CaALG and TBP-CaALG was examined by SEM and IR, and the uptake properties and distribution of Pu(IV) ions were estimated by batch method. The uptake rate of Pu(IV) on CaALG and TBP-CaALG in the presence of 5 M HNO₃ was attained within 6 and 4 h, respectively, and K _d values for CaALG and TBP-CaALG after 7 h-shaking were 50.2 and 53.2 cm ³/g, respectively. Relatively large K _d values (90.3-425 cm³/g) were obtained for fresh CaALG and TBP-CaALG in the presence of 0.5-2 M HNO₃. Thus CaALG and TBP-CaALG are effective for the separation of Pu(IV) in the presence of highly concentrated HNO₃.

Original language	English
Pages (from-to)	513-520
Number of pages	8
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	281
Issue number	3
DOIs	https://doi.org/10.1007/s10967-009-0022-x
Publication status	Published - 2009 Sep 1

Keywords

Alginate
Encapsulation
Microcapsule
Plutonium
TBP
Uptake

ASJC Scopus subject areas

Analytical Chemistry
Nuclear Energy and Engineering
Radiology Nuclear Medicine and imaging
Pollution
Spectroscopy
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

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title = "Selective uptake of plutonium (IV) on calcium alginate gel polymer and TBP microcapsule",

abstract = "The uptake behavior of Pu(IV) has been investigated by using calcium alginate gel polymer (CaALG) and TBP microcapsules (TBP-CaALG). The characterization of CaALG and TBP-CaALG was examined by SEM and IR, and the uptake properties and distribution of Pu(IV) ions were estimated by batch method. The uptake rate of Pu(IV) on CaALG and TBP-CaALG in the presence of 5 M HNO3 was attained within 6 and 4 h, respectively, and K d values for CaALG and TBP-CaALG after 7 h-shaking were 50.2 and 53.2 cm 3/g, respectively. Relatively large K d values (90.3-425 cm3/g) were obtained for fresh CaALG and TBP-CaALG in the presence of 0.5-2 M HNO3. Thus CaALG and TBP-CaALG are effective for the separation of Pu(IV) in the presence of highly concentrated HNO3.",

keywords = "Alginate, Encapsulation, Microcapsule, Plutonium, TBP, Uptake",

author = "Yan Wu and Hitoshi Mimura and Yuichi Niibori",

year = "2009",

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doi = "10.1007/s10967-009-0022-x",

language = "English",

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T1 - Selective uptake of plutonium (IV) on calcium alginate gel polymer and TBP microcapsule

AU - Wu, Yan

AU - Mimura, Hitoshi

AU - Niibori, Yuichi

PY - 2009/9/1

Y1 - 2009/9/1

N2 - The uptake behavior of Pu(IV) has been investigated by using calcium alginate gel polymer (CaALG) and TBP microcapsules (TBP-CaALG). The characterization of CaALG and TBP-CaALG was examined by SEM and IR, and the uptake properties and distribution of Pu(IV) ions were estimated by batch method. The uptake rate of Pu(IV) on CaALG and TBP-CaALG in the presence of 5 M HNO3 was attained within 6 and 4 h, respectively, and K d values for CaALG and TBP-CaALG after 7 h-shaking were 50.2 and 53.2 cm 3/g, respectively. Relatively large K d values (90.3-425 cm3/g) were obtained for fresh CaALG and TBP-CaALG in the presence of 0.5-2 M HNO3. Thus CaALG and TBP-CaALG are effective for the separation of Pu(IV) in the presence of highly concentrated HNO3.

AB - The uptake behavior of Pu(IV) has been investigated by using calcium alginate gel polymer (CaALG) and TBP microcapsules (TBP-CaALG). The characterization of CaALG and TBP-CaALG was examined by SEM and IR, and the uptake properties and distribution of Pu(IV) ions were estimated by batch method. The uptake rate of Pu(IV) on CaALG and TBP-CaALG in the presence of 5 M HNO3 was attained within 6 and 4 h, respectively, and K d values for CaALG and TBP-CaALG after 7 h-shaking were 50.2 and 53.2 cm 3/g, respectively. Relatively large K d values (90.3-425 cm3/g) were obtained for fresh CaALG and TBP-CaALG in the presence of 0.5-2 M HNO3. Thus CaALG and TBP-CaALG are effective for the separation of Pu(IV) in the presence of highly concentrated HNO3.

KW - Alginate

KW - Encapsulation

KW - Microcapsule

KW - Plutonium

KW - TBP

KW - Uptake

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