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Radiochimica Acta

International Journal for chemical aspects of nuclear science and technology

Editor-in-Chief: Qaim, Syed M.

12 Issues per year


IMPACT FACTOR 2017: 1.202

CiteScore 2017: 1.22

SCImago Journal Rank (SJR) 2017: 0.409
Source Normalized Impact per Paper (SNIP) 2017: 0.869

Online
ISSN
2193-3405
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Volume 102, Issue 12

Issues

Nature of nano-sized plutonium particles in soils at the Hanford Site

Edgar C. Buck
  • Corresponding author
  • Energy and Environment Directorate, Pacific Northwest National Laboratory, P.O. Box 999, Mail Stop P7-27, Richland, WA 99352, United States
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  • Other articles by this author:
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/ Dean A. Moore
  • Fundamental Science Directorate, Pacific Northwest National Laboratory, P.O. Box 999, Mail Stop K6-81, Richland, WA 99352, United States
  • Other articles by this author:
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/ Kenneth R. Czerwinski
  • Harry-Reid Center for Environmental Studies, University of Nevada, Las Vegas, NV 89154, United States
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  • De Gruyter OnlineGoogle Scholar
/ Steven D. Conradson / Olga N. Batuk / Andrew R. Felmy
  • Fundamental Science Directorate, Pacific Northwest National Laboratory, P.O. Box 999, Mail Stop K6-81, Richland, WA 99352, United States
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  • De Gruyter OnlineGoogle Scholar
Published Online: 2014-08-07 | DOI: https://doi.org/10.1515/ract-2013-2103

Abstract

The occurrence of plutonium dioxide (PuO2) either from direct deposition or from the precipitation of plutonium-bearing solutions in contaminated soils and sediments is well described, particularly for the Hanford site in Washington State. However, past research has suggested that plutonium at the Hanford site may exist in chemical forms in addition to PuO2. Although the majority of the plutonium is present as oxide, we present evidence for the formation of nano-sized mixed plutonium- iron phosphate hydroxide structurally related to the rhabdophane group minerals in 216-Z9 crib sediments from Hanford using both transmission electron microscopy (TEM) and X-ray absorption spectroscopy (XAS). The iron-plutonium phosphate formation may depend on the local microenvironment in the sediments, availability of phosphate, and hence the distribution of these minerals may control long-term migration of plutonium in the soil.

This article offers supplementary material which is provided at the end of the article.

Keywords: Electron Microscopy; EELS; XAS; Plutonium; Hanford; Soil Contamination

Supplementary material

the online version of this article (DOI: 10.1515/ract-2013-2103) provides supplementary material for authorized users.

About the article

Accepted: 2014-07-01

Received: 2013-01-28

Published Online: 2014-08-07

Published in Print: 2014-12-28


Citation Information: Radiochimica Acta, Volume 102, Issue 12, Pages 1059–1068, ISSN (Online) 2193-3405, ISSN (Print) 0033-8230, DOI: https://doi.org/10.1515/ract-2013-2103.

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