An EXAFS study of uranium(VI) sorption onto silica gel and ferrihydrite

T. Reich; H. Moll; T. Arnold; M. A. Denecke; C. Hennig; G. Geipel; G. Bernhard; H. Nitsche; P. G. Allen; J. J. Bucher; N. M. Edelstein; D. K. Shuh

doi:10.1016/S0368-2048(98)00242-4

An EXAFS study of uranium(VI) sorption onto silica gel and ferrihydrite

T. Reich, H. Moll, T. Arnold, M. A. Denecke, C. Hennig, G. Geipel, G. Bernhard, H. Nitsche, P. G. Allen, J. J. Bucher, N. M. Edelstein, D. K. Shuh

Dalton Nuclear Institute

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

Abstract

Structural parameters of the near-neighbor surrounding of uranium(VI) sorbed onto silica gel and ferrihydrite surfaces have been determined by U LIII-edge extended X-ray absorption fine structure (EXAFS) analysis. The sorption on silica gel was studied at pH 4 with uranium(VI) concentrations in the range of 5 × 10-2-2 × 10-5 mol/l. Sorption experiments with ferrihydrite have been performed at pH 5.8 with uranium(VI) concentrations of 10-4 and 10-5 mol/l and at pH 7.8 with 10-5 mol/l uranium(VI). The structural parameters for the uranium coordination shells (U-Oax, U-Oeq, and U-Si/Fe) indicate formation of inner-sphere, mononuclear uranyl complexes at the silica gel and ferrihydrite surfaces. © 1998 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	237-243
Number of pages	6
Journal	Journal of Electron Spectroscopy and Related Phenomena
Volume	96
Issue number	1-3
DOIs	https://doi.org/10.1016/S0368-2048(98)00242-4
Publication status	Published - Nov 1998

Keywords

EXAFS
Ferrihydrite
Silica gel
Sorption
Uranium

Research Beacons, Institutes and Platforms

Dalton Nuclear Institute

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10.1016/S0368-2048(98)00242-4

http://www.sciencedirect.com/science/article/pii/S0368204898002424

Cite this

@article{86d555cc7c1846b9913b7eab98fedb3b,

title = "An EXAFS study of uranium(VI) sorption onto silica gel and ferrihydrite",

abstract = "Structural parameters of the near-neighbor surrounding of uranium(VI) sorbed onto silica gel and ferrihydrite surfaces have been determined by U LIII-edge extended X-ray absorption fine structure (EXAFS) analysis. The sorption on silica gel was studied at pH 4 with uranium(VI) concentrations in the range of 5 × 10-2-2 × 10-5 mol/l. Sorption experiments with ferrihydrite have been performed at pH 5.8 with uranium(VI) concentrations of 10-4 and 10-5 mol/l and at pH 7.8 with 10-5 mol/l uranium(VI). The structural parameters for the uranium coordination shells (U-Oax, U-Oeq, and U-Si/Fe) indicate formation of inner-sphere, mononuclear uranyl complexes at the silica gel and ferrihydrite surfaces. {\textcopyright} 1998 Elsevier Science B.V. All rights reserved.",

keywords = "EXAFS, Ferrihydrite, Silica gel, Sorption, Uranium",

author = "T. Reich and H. Moll and T. Arnold and Denecke, {M. A.} and C. Hennig and G. Geipel and G. Bernhard and H. Nitsche and Allen, {P. G.} and Bucher, {J. J.} and Edelstein, {N. M.} and Shuh, {D. K.}",

year = "1998",

month = nov,

doi = "10.1016/S0368-2048(98)00242-4",

language = "English",

volume = "96",

pages = "237--243",

journal = "Journal of Electron Spectroscopy and Related Phenomena",

publisher = "Elsevier BV",

number = "1-3",

}

TY - JOUR

T1 - An EXAFS study of uranium(VI) sorption onto silica gel and ferrihydrite

AU - Reich, T.

AU - Moll, H.

AU - Arnold, T.

AU - Denecke, M. A.

AU - Hennig, C.

AU - Geipel, G.

AU - Bernhard, G.

AU - Nitsche, H.

AU - Allen, P. G.

AU - Bucher, J. J.

AU - Edelstein, N. M.

AU - Shuh, D. K.

PY - 1998/11

Y1 - 1998/11

N2 - Structural parameters of the near-neighbor surrounding of uranium(VI) sorbed onto silica gel and ferrihydrite surfaces have been determined by U LIII-edge extended X-ray absorption fine structure (EXAFS) analysis. The sorption on silica gel was studied at pH 4 with uranium(VI) concentrations in the range of 5 × 10-2-2 × 10-5 mol/l. Sorption experiments with ferrihydrite have been performed at pH 5.8 with uranium(VI) concentrations of 10-4 and 10-5 mol/l and at pH 7.8 with 10-5 mol/l uranium(VI). The structural parameters for the uranium coordination shells (U-Oax, U-Oeq, and U-Si/Fe) indicate formation of inner-sphere, mononuclear uranyl complexes at the silica gel and ferrihydrite surfaces. © 1998 Elsevier Science B.V. All rights reserved.

AB - Structural parameters of the near-neighbor surrounding of uranium(VI) sorbed onto silica gel and ferrihydrite surfaces have been determined by U LIII-edge extended X-ray absorption fine structure (EXAFS) analysis. The sorption on silica gel was studied at pH 4 with uranium(VI) concentrations in the range of 5 × 10-2-2 × 10-5 mol/l. Sorption experiments with ferrihydrite have been performed at pH 5.8 with uranium(VI) concentrations of 10-4 and 10-5 mol/l and at pH 7.8 with 10-5 mol/l uranium(VI). The structural parameters for the uranium coordination shells (U-Oax, U-Oeq, and U-Si/Fe) indicate formation of inner-sphere, mononuclear uranyl complexes at the silica gel and ferrihydrite surfaces. © 1998 Elsevier Science B.V. All rights reserved.

KW - EXAFS

KW - Ferrihydrite

KW - Silica gel

KW - Sorption

KW - Uranium

U2 - 10.1016/S0368-2048(98)00242-4

DO - 10.1016/S0368-2048(98)00242-4

M3 - Article

VL - 96

SP - 237

EP - 243

JO - Journal of Electron Spectroscopy and Related Phenomena

JF - Journal of Electron Spectroscopy and Related Phenomena

IS - 1-3

ER -

An EXAFS study of uranium(VI) sorption onto silica gel and ferrihydrite

Abstract

Keywords

Research Beacons, Institutes and Platforms

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