Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-25T23:21:13.519Z Has data issue: false hasContentIssue false
  • English
  • Français

Preparation and characterization of iron oxide pillared montmorillonite

Published online by Cambridge University Press:  09 July 2018

D. H. Doff ,
N. H. J. Gangas ,
J. E. M. Allan  and
J. M. D. Coey
D. H. Doff
Affiliation:
Department of Geology, Trinity College, Dublin 2, Ireland
N. H. J. Gangas
Affiliation:
Kifissias Avenue 108, GR-11526 Athens, Greece
J. E. M. Allan
Affiliation:
Department of Pure and Applied Physics, Trinity College, Dublin 2, Ireland
J. M. D. Coey
Affiliation:
Department of Pure and Applied Physics, Trinity College, Dublin 2, Ireland
Get access Rights & Permissions [Opens in a new window]

Abstract

Pillared smectites in which the pillars consist of iron oxide are expected to have interesting and unusual magnetic properties. Several possible routes by which such materials might be made have been investigated, namely intercalation of hydroxy-Fe(III) polycations, mixed hydroxy-Fe(III)/Al polycations, phenanthroline-Fe(II) cations, and trinuclear Fe(III) acetato cations into Na-montmorillonite. Only the last of these yielded a pillared clay (PILC) on calcination. The products have been characterized using X-ray powder diffraction and 57Fe Mössbauer spectroscopy. The precursor Fe-PILC has a d-spacing of 21 Å and expands to 23 Å on solvation with glycol. The calcined Fe-PILC has a d-spacing of 19 Å (gallery height 9·4 Å) and does not expand with glycol, confirming cross-linking of the layers. From Mössbauer spectra at 4·2 K it is estimated that there are of the order of some hundred Fe atoms per pillar.

Type
Research Article
Information
Clay Minerals , Volume 23 , Issue 4 , December 1988 , pp. 367 - 377
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1988

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Baes, C.P. & Mesmer, R.E. (1976) The Hydrolysis of Cations, John Wiley & Sons, New York.Google Scholar
Barrer, R.M. (1986) Expanded clay minerals: a major class of molecular sieves. J. Inc. Phen. 4, 109-119.Google Scholar
Berkheiser, V.E. & Mortland, M.M. (1977) Hectorite complexes with Cu(II) and Fe(II) 1,10-phenanthroline chelates. Clays Clay Miner. 25, 105-112.Google Scholar
Brindley, G.W. (1981) Long spacing organics for calibrating long spacings of interstratified clay minerals. Clays Clay Min. 29, 67-68.Google Scholar
Carstea, D.D., Harward, M.E. & Knox, E.G. (1970) Comparison of iron and aluminum hydroxy interlayers in montmorillonite and vermiculite: I. Formation. Soil Sci. Soc. Amer. Proc. 34, 517-521.Google Scholar
Earnshaw, A.E., Figgis, B.N. & Lewis, J. (1966) Chemistry of polynuclear compounds. Part VI. Magnetic properties of trimeric chromium and iron carboxylates. J. Chem. Soc. (A), 1656-1663.Google Scholar
Gangas, N.H.J., Van Wonterghem, J., Morup, S. & Koch, C.J.W. (1985) Magnetic bridging in nontronite by intercalated iron. J. Phys. C: Solid State Phys. 18, L1011–L1015.CrossRefGoogle Scholar
Gangas, N.H., Bakas, T., Moukarika, A., Petridis, D. & Simopoulos, A. (1987) Magnetic ordering in nontronite pillared with Al-polyoxo cations. NATO ASI Chemical Physics of Intercalation. Castera- Verduzan, France.Google Scholar
Helsen, J.A. & Goodman, B.A. (1983) Characterisation of iron(II)- and iron(III)-exchanged montmorillonite and hectorite using the Mossbauer effect. Clay Miner. 18, 117-125.Google Scholar
Herrera, R. & Peech, M. (1970) Reaction of montmorillonite with iron III. Soil Sci. Soc. Amer. Proc. 34, 740742.Google Scholar
Holt, E.M., Holt, S.L., Tucker, W.F., Asplund, R.O. & Watson, K.J. (1974) Preparation and properties of iron(III)-amino acid complexes. Iron(III)-alanine, a possible ferritin analog. J. Am. Chem. Soc. 96, 2621-2623.Google Scholar
Johnson, M.K., Cannon, R.D. & Powell, D.B. (1982) Vibrational spectra of carboxylato complexes–IV. Mixed-metal and mixed-valence oxo-trinuclear complexes. Spectrochim. Acta 38A, 307-315.Google Scholar
Loeppert, R.H., Mortland, M.M. & Pinnavaia, T.J. (1979) Synthesis and properties of heat-stable expanded smectite and vermiculite. Clays Clay Miner. 27, 201-208.Google Scholar
Long, G.J., Robinson, W.T., Tappmeyer, W.P. & Bridges, D.L. (1973) The magnetic, electronic, and Mossbauer spectral properties of several trinuclear iron (III) carboxylate complexes. J. Chem. Soc., Dalton Trans. 573-579.Google Scholar
Martin, R.L. (1968) Metal-metal interaction in paramagnetic clusters. Ch. 9 in: New Pathways in Inorganic Chemistry (Ebsworth, E. A. V., Maddock, A. G. & Sharpe, A. G., editors). Cambridge University Press.Google Scholar
Meagher, A., Coey, J.M.D., Belakhovsky, M., Pineri, M., Jerome, R., Vlaic, G., Williams, C. & Van Dang, N. (1986) Microstructure ofiron(III) a,cu-dicarboxylatopolybutadiene. Polymer 27, 979-985.Google Scholar
Oades, J.M. (1984) Interactions of polycations of aluminum and iron with clays. Clays Clay Miner. 32,49-56.Google Scholar
Pinna vaia, T.J. (1983) Intercalated clay catalysts. Science 220, 365-371.Google Scholar
Pinna vaia, T.J., Tzou, M.S., Landau, S.D. & Raythatha, R.H. (1984) On the pillaring and delamination of smectite clay catalysts by polyoxo cations of aluminium. J. Mol. Catal. 27, 195-212.Google Scholar
Plee, D., Borg, F., Gatineau, L. & Fripiat, J.J. (1985) High-resolution solid-state 27A1 and 29Si nuclear magnetic resonance study of pillared clays. J. Am. Chem. Soc. 107, 2362-2369.Google Scholar
Plee, D., Gatineau, L. & Fripiat, J.J. (1987) Pillaring processes of smectites with and without tetrahedral substitution. Clays Clay Miner. 35, 81-88.Google Scholar
Spiro, T.G., Allerton, S.E., Renner, J., Terzis, A., Bils, R. & Saltman, P. (1966) The hydrolytic polymerization of iron (III). J. Am. Chem. Soc. 88, 2721-2726.Google Scholar
Tennakoon, D.T.B., Jones, W. & Thomas, J.M. (1986) Structural aspects of metal-oxide-pillared sheet silicates. J. Chem. Soc. Faraday Trans. 1, 82, 3081-3095.Google Scholar
Thundathil, R.V., Holt, E.M., Holt, S.L. & Watson, K.J. (1977) Preparation and properties of iron(III)- amino acid complexes. 2. The crystal and molecular structure of monoclinic tri-//3-triaquohexakis (glycine) tri-iron(III) perchlorate. J. Am. Chem. Soc. 99, 1818.Google Scholar
Tucker, W.F., Asplund, R.O. & Holt, S.L. (1975) Preparation and properties of Fe3+-amino acid complexes. Arch. Biochem. Biophys. 166, 433-438.Google Scholar
Van Olphen, H. & Fripiat, J.J. (editors) (1979) Data Handbook for Clay Minerals and other Non-Metallic Minerals. Pergamon, Oxford.Google Scholar
Welo, L.A. (1928) Magnetic studies on salts with particular reference to those with complex ions. Phil. Mag. S7, 6, 481-509.Google Scholar
Yamanaka, S., Doi, T., Sako, S. & Hattori, M. (1984) High surface area solids obtained by intercalation of iron oxide pillars in montmorillonite. Mat. Res. Bull. 19, 161-168.Google Scholar