Plutonium and neptunium speciation bound to hydrous ferric oxide colloids

被引：22

作者：

Kalmykov, Stepan N. ^{[1
]}

Kriventsov, Vladimir V.

Teterin, Yuri A.

Novikov, Alexander P.

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119992, Russia

[2] Siberian Ctr Synchrotron Radiat, Novosibirsk, Russia

[3] RNC Kurchatov Inst, Moscow 123182, Russia

[4] VI Vernadskii Inst Geochem & Analyt Chem, Moscow 119991, Russia

来源：

COMPTES RENDUS CHIMIE | 2007年 / 10卷 / 10-11期

关键词：

speciation; XANES; XPS; Nano-SIMS; pu; np; intrinsic colloids;

D O I：

10.1016/j.crci.2007.06.015

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The speciation of plutonium and neptunium in colloid suspension collected from the contaminated aquifer of the "Mayak" site was studied by nano-SIMS, XPS and XANES. At tracer level concentration found in original groundwater sample Pu is sorbed onto hydrous ferric oxide colloids, while at higher concentration relevant to near-field conditions it forms intrinsic PUO2 x nH(2)O colloids. The formation of such colloids occurs through the reduction of Pu(V) to Pu(IV) upon its sorption.

引用

页码：1060 / 1066

页数：7

共 22 条

[1] CRYSTAL-STRUCTURE OF SB4O5(OH)CIO4.H-1/2O-2 [J].

BOVIN, JO .

ACTA CHEMICA SCANDINAVICA SERIES A-PHYSICAL AND INORGANIC CHEMISTRY, 1974, A 28 (07) :723-730

[2] Combined LIBD and XAFS investigation of the formation and structure of Zr(IV) colloids [J].

Cho, HR ;

Walther, C ;

Rothe, J ;

Neck, V ;

Denecke, MA ;

Dardenne, K ;

Fanghänel, T .

ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2005, 383 (01) :28-40

[3] Redox speciation of plutonium [J].

Choppin, GR ;

Bond, AH ;

Hromadka, PM .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 1997, 219 (02) :203-210

[4] MIGRATION OF RU-106 IN A NEVADA TEST SITE AQUIFER - DISCREPANCY BETWEEN FIELD AND LABORATORY RESULTS [J].

COLES, DG ;

RAMSPOTT, LD .

SCIENCE, 1982, 215 (4537) :1235-1237

[5]

Denecke M. A., 2002, J NUCL SCI TECHNOL S, V3, P410, DOI 10.1080/00223131.2002.10875494

[6] Actinide speciation using X-ray absorption fine structure spectroscopy [J].

Denecke, Melissa A. .

COORDINATION CHEMISTRY REVIEWS, 2006, 250 (7-8) :730-754

[7] Aquatic chemistry and solubility phenomena of actinide oxides/hydroxides [J].

Fanghänel, T ;

Neck, V .

PURE AND APPLIED CHEMISTRY, 2002, 74 (10) :1895-1907

[8] ON STRUCTURE OF HYDROLYSIS PRODUCTS OF THORIUM [J].

JOHANSSON, G .

ACTA CHEMICA SCANDINAVICA, 1968, 22 (02) :399-+

[9] THE REDOX CHEMISTRY OF PU(V)O-2+ INTERACTION WITH COMMON MINERAL SURFACES IN DILUTE-SOLUTIONS AND SEAWATER [J].

KEENEYKENNICUTT, WL ;

MORSE, JW .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1985, 49 (12) :2577-2588

[10] Migration of plutonium in ground water at the Nevada Test Site [J].

Kersting, AB ;

Efurd, DW ;

Finnegan, DL ;

Rokop, DJ ;

Smith, DK ;

Thompson, JL .

NATURE, 1999, 397 (6714) :56-59

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