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Formation of Goethite and Hematite from Neodymium-Containing Ferrihydrite Suspensions

Published online by Cambridge University Press:  28 February 2024

Tetsushi Nagano ,
Hisayoshi Mitamura ,
Shinichi Nakayama  and
Satoru Nakashima
Tetsushi Nagano*
Affiliation:
Department of Environmental Safety Research, Japan Atomic Energy Research Institute, Tokai, Naka, Ibaraki 319-1195, Japan
Hisayoshi Mitamura*
Affiliation:
Department of Environmental Safety Research, Japan Atomic Energy Research Institute, Tokai, Naka, Ibaraki 319-1195, Japan
Shinichi Nakayama*
Affiliation:
Department of Environmental Safety Research, Japan Atomic Energy Research Institute, Tokai, Naka, Ibaraki 319-1195, Japan
Satoru Nakashima*
Affiliation:
Department of Earth and Planetary Materials Science, Graduate School of Science, Hokkaido University, N10 W8, Sapporo 060-0810, Japan
*
†Present address: Department of Environmental Sciences, Japan Atomic Energy Research Institute, Tokai, Naka, Ibaraki 319-1195, Japan.
†Present address: Department of Environmental Sciences, Japan Atomic Energy Research Institute, Tokai, Naka, Ibaraki 319-1195, Japan.
‡Present address: Department of Fuel Cycle Safety Research, Japan Atomic Energy Research Institute, Tokai, Naka, Ibaraki 319-1195, Japan.
§Present address: Interactive Research Center for Science Tokyo Institute of Technology, O-okayama 2-12-1, Meguro, Tokyo 152-8551, Japan
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Abstract

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The effects of neodymium (Nd) on the transformation of ferrihydrite to iron oxides was studied. The possible isomorphous substitution of Nd3+ for Fe3+ in iron oxides was examined also. Nd was used as an inactive substitute of trivalent radioactive actinide elements. Hydrolysis of ferric nitrate solution containing 0–30 mole % of Nd formed Nd, Fe-rich ferrihydrite as initial precipitates, which were poorly crystalline. Aging of the Nd-containing ferrihydrite in 0.3 M OH− at 40°C and at pH 9.2 at 70°C formed Nd-free goethite and Nd-substituted hematite. The abundance of these crystalline phases was related to Nd in the parent solutions. Phase abundance, unit-cell parameters, and peak width were estimated by use of the Rietveld method.

Keywords

FerrihydriteGoethiteHematiteNeodymiumPowder X-ray DiffractometryRietveld RefinementTransmission Electron Microscopy
Type
Research Article
Information
Clays and Clay Minerals , Volume 47 , Issue 6 , December 1999 , pp. 748 - 754
Copyright
Copyright © 1999, The Clay Minerals Society

References

Blake, R.L. Hessevick, R.E. Zoltai, T. and Finger, L.W., 1966 Refinement of the hematite structure The American Mineralogist 51 123–129.Google Scholar
Cornell, R.M. and Schwertmann, U., 1996 The Iron Oxides Weinheim VCH 313–347.Google Scholar
Cornell, R.M. Giovanoli, R. and Schneider, W., 1989 Review of the hydrolysis of iron (III) and the crystallization of amorphous iron (III) hydroxide hydrate Journal of Chemical Technology and Biotechnology 46 115–134 10.1002/jctb.280460204.CrossRefGoogle Scholar
Feitknecht, W. and Michaelis, W., 1962 Uber die Hydrolyse von Eisen (III) perchlorat-Losungen Helvetica Chimica Acta 45 212–224 10.1002/hlca.19620450127.CrossRefGoogle Scholar
Forsyth, J.B. Hedley, I.G. and Johnson, C.E., 1968 The magnetic structure and hyperfine field of goethite (α-Fe-OOH) Journal of Physics, C (Proceedings of Physical Society) Series 2 1 179–188 10.1088/0022-3719/1/1/321.CrossRefGoogle Scholar
Gerth, J., 1990 Unit-cell dimensions of pure and trace metal-associated goethites Geochimica et Cosmochimica Acta 54 363–371 10.1016/0016-7037(90)90325-F.CrossRefGoogle Scholar
Haire, R.G. Eyring, L., Gschneidner, K.A. and Eyring, L. Jr. Choppin, G.R. and Lander, G.H., 1994 Comparisons of the binary oxides Handbook on the Physics and Chemistry of Rare Earths Amsterdam, The Netherlands Elsevier Science 413–505.Google Scholar
Hill, R.J. and Young, R.A., 1993 Data collection strategies: Fitting the experiment to the need The Rietveld Method Oxford, UK Oxford University Press 61–101.CrossRefGoogle Scholar
Hill, R.J. and Howard, C.J., 1987 Quantitative phase analysis from neutron powder diffraction data using the Rietveld method Journal of Applied Crystallography 20 467–474 10.1107/S0021889887086199.CrossRefGoogle Scholar
Howard, C.J. and Hunter, B.A., 1997 A computer program for Rietveld analysis of X-ray and neutron powder diffraction patterns .Google Scholar
Payne, T.E. Davis, J.A. and Waite, T.D., 1994 Uranium retention by weathered schists—the role of iron minerals Radiochimica Acta 66/67 297–303 10.1524/ract.1994.6667.special-issue.297.CrossRefGoogle Scholar
Rao, L. Rai, D. and Felmy, A.R., 1996 Solubility of Nd(OH)3(c) in 0.1 M NaCl aqueous solution at 25Å°C and 90Å°C Radiochimica Acta 72 151–155 10.1524/ract.1996.72.3.151.CrossRefGoogle Scholar
Rietveld, H.M., 1969 A profile refinement method for nuclear and magnetic structures Journal of Applied Crystallography 2 65–71 10.1107/S0021889869006558.CrossRefGoogle Scholar
Roy, R. and McKinstry, H.A., 1953 Concerning the socalled Y(OH),-type structures, and the structure of La(OH)3 Acta Crystallographica 6 365 10.1107/S0365110X53000995.CrossRefGoogle Scholar
Sakamoto, Y. and Senoo, M., 1994 Redistribution of strontium during crystallization of amorphous ferrihydrite to goethite Radioactive Waste Management and Environmental Restoration 18 265–280.Google Scholar
Schulze, D.G., 1984 The influence of aluminum on iron oxides. VIII. Unit-cell dimensions of Alsubstituted goethites and estimation of Al from them Clays and Clay Minerals 32 36–44 10.1346/CCMN.1984.0320105.CrossRefGoogle Scholar
Schulze, D.G. and Schwertmann, U., 1984 The influence of aluminum on iron oxides: X. Properties of Al-substituted goethites Clay Minerals 19 521–539 10.1180/claymin.1984.019.4.02.CrossRefGoogle Scholar
Schulze, D.G. and Schwertmann, U., 1987 The influence of aluminum on iron oxides: XIII. Properties of goethites synthesized in 0.3 M KOH at 25Å°C Clay Minerals 22 83–92 10.1180/claymin.1987.022.1.07.CrossRefGoogle Scholar
Schwertmann, U. and Cornell, R.M., 1991 Iron Oxides in the Laboratory: Preparation and Characterization .Google Scholar
Schwertmann, U. and Fischer, W.R., 1966 Zur Bildung von α-FeOOH und α-Fe2O3 aus amorphem Eisen(III)-hydroxid III Zeitschrift fur Anorganische und Allgemeine Chemie 346 137–142 10.1002/zaac.19663460304.CrossRefGoogle Scholar
Schwertmann, U. and Murad, E., 1983 Effect of pH on the formation of goethite and hematite from ferrihydrite Clays and Clay Minerals 31 277–284 10.1346/CCMN.1983.0310405.CrossRefGoogle Scholar
Schwertmann, U. and Stanjek, H., 1998 Stirring effects on properties of Al goethite formed from ferrihydrite Clays and Clay Minerals 46 317–321 10.1346/CCMN.1998.0460310.CrossRefGoogle Scholar
Schwertmann, U. Taylor, R.M., Dixon, J.B. and Weeds, S.B., 1989 Iron oxides Minerals in Soil Environments 2nd edition Madison, Wisconsin Soil Science Society of America Book Series 1 379–438.Google Scholar
Schwertmann, U. Cambier, P. and Murad, E., 1985 Properties of goethites of varying crystallinity Clays and Clay Minerals 33 369–378 10.1346/CCMN.1985.0330501.CrossRefGoogle Scholar
Shannon, R.D., 1976 Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides Acta Crystallographica A32 751–767 10.1107/S0567739476001551.CrossRefGoogle Scholar
Wiles, D.B. and Young, R.A., 1981 A new computer program for Rietveld analysis of X-ray powder diffraction patterns Journal of Applied Crystallography 14 149–151 10.1107/S0021889881008996.CrossRefGoogle Scholar