Sorption of plutonium(VI) by hydroxyapatite

R. C. Moore; M. Gasser; N. Awwad; K. C. Holt; F. M. Salas; A. Hasan; M. A. Hasan; H. Zhao; C. A. Sanchez

doi:10.1007/s10967-005-0019-z

Sorption of plutonium(VI) by hydroxyapatite

R. C. Moore, M. Gasser, N. Awwad, K. C. Holt, F. M. Salas, A. Hasan, M. A. Hasan, H. Zhao, C. A. Sanchez

Maricopa Agriculture Center

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

31 Scopus citations

Abstract

The sorption of Pu(VI) by synthetic hydroxyapatite was determined in NaClO₄ media. Pu(VI) sorption was determined to be rapid with equilibrium attained in 2 hours. Equilibrium experiments indicated sorption to be pH dependent with distribution constants, log K_d values, ranging from 4.11 at pH 6 to 5.92 at pH 8.5. Data collected at pH 8.0 with varying total Pu(VI) were fit to the Langmuir isotherm and yielded Langmuir constants of C_a = 0.0147 mole/mole and/C= 1.71·10⁸l/mole. Although varying ionic strength did not have an effect on Pu(VI) sorption, a decrease in sorption was evident at high calcium and phosphate concentrations.

Original language	English (US)
Pages (from-to)	97-101
Number of pages	5
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	263
Issue number	1
DOIs	https://doi.org/10.1007/s10967-005-0019-z
State	Published - 2005

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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@article{1f779a892e3d4197a2cf7bfaf94c1c77,

title = "Sorption of plutonium(VI) by hydroxyapatite",

abstract = "The sorption of Pu(VI) by synthetic hydroxyapatite was determined in NaClO4 media. Pu(VI) sorption was determined to be rapid with equilibrium attained in 2 hours. Equilibrium experiments indicated sorption to be pH dependent with distribution constants, log Kd values, ranging from 4.11 at pH 6 to 5.92 at pH 8.5. Data collected at pH 8.0 with varying total Pu(VI) were fit to the Langmuir isotherm and yielded Langmuir constants of Ca = 0.0147 mole/mole and/C= 1.71·108l/mole. Although varying ionic strength did not have an effect on Pu(VI) sorption, a decrease in sorption was evident at high calcium and phosphate concentrations.",

author = "Moore, {R. C.} and M. Gasser and N. Awwad and Holt, {K. C.} and Salas, {F. M.} and A. Hasan and Hasan, {M. A.} and H. Zhao and Sanchez, {C. A.}",

note = "Funding Information: Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract DE-AC04-94AL85000.",

year = "2005",

doi = "10.1007/s10967-005-0019-z",

language = "English (US)",

volume = "263",

pages = "97--101",

journal = "Journal of Radioanalytical Chemistry",

issn = "0022-4081",

publisher = "Springer Netherlands",

number = "1",

}

TY - JOUR

T1 - Sorption of plutonium(VI) by hydroxyapatite

AU - Moore, R. C.

AU - Gasser, M.

AU - Awwad, N.

AU - Holt, K. C.

AU - Salas, F. M.

AU - Hasan, A.

AU - Hasan, M. A.

AU - Zhao, H.

AU - Sanchez, C. A.

N1 - Funding Information: Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract DE-AC04-94AL85000.

PY - 2005

Y1 - 2005

N2 - The sorption of Pu(VI) by synthetic hydroxyapatite was determined in NaClO4 media. Pu(VI) sorption was determined to be rapid with equilibrium attained in 2 hours. Equilibrium experiments indicated sorption to be pH dependent with distribution constants, log Kd values, ranging from 4.11 at pH 6 to 5.92 at pH 8.5. Data collected at pH 8.0 with varying total Pu(VI) were fit to the Langmuir isotherm and yielded Langmuir constants of Ca = 0.0147 mole/mole and/C= 1.71·108l/mole. Although varying ionic strength did not have an effect on Pu(VI) sorption, a decrease in sorption was evident at high calcium and phosphate concentrations.

AB - The sorption of Pu(VI) by synthetic hydroxyapatite was determined in NaClO4 media. Pu(VI) sorption was determined to be rapid with equilibrium attained in 2 hours. Equilibrium experiments indicated sorption to be pH dependent with distribution constants, log Kd values, ranging from 4.11 at pH 6 to 5.92 at pH 8.5. Data collected at pH 8.0 with varying total Pu(VI) were fit to the Langmuir isotherm and yielded Langmuir constants of Ca = 0.0147 mole/mole and/C= 1.71·108l/mole. Although varying ionic strength did not have an effect on Pu(VI) sorption, a decrease in sorption was evident at high calcium and phosphate concentrations.

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U2 - 10.1007/s10967-005-0019-z

DO - 10.1007/s10967-005-0019-z

M3 - Article

AN - SCOPUS:17144418892

VL - 263

SP - 97

EP - 101

JO - Journal of Radioanalytical Chemistry

JF - Journal of Radioanalytical Chemistry

SN - 0022-4081

IS - 1

ER -

Sorption of plutonium(VI) by hydroxyapatite

Abstract

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