Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-25T20:34:03.407Z Has data issue: false hasContentIssue false

Infrared study of goethites of varying crystallinity and particle size: I. Interpretation of OH and lattice vibration frequencies

Published online by Cambridge University Press:  09 July 2018

P. Cambier*
Affiliation:
Station de Science du Sol, INRA, Route de St Cyr, 78000 Versailles, France

Abstract

A detailed study of the IR spectrum of goethite is given with the aim of relating variations to crystalline order and particle size. The OH stretching vibrations are split into two active components at high frequency, plus two inactive ones at low frequency. Two different bending modes exist from site group splitting. Their active modes from factor group splitting are at lower frequencies than the uncoupled ones. The lattice bands at 630 and 400 cm−1 correspond to Fe-O or Fe-OH stretching, approximately parallel to a and c, and thus respectively sensitive and not sensitive to the particle shape, as long as it remains elongated along c.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1986

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

Cabannes-Ott, C. (1957) Sur la structure de quelques hydroxydes naturels: diaspore, manganite, goethite, lépidocrocite. C.R. Acad. Sci., Paris 244, 24912495.Google Scholar
Cambier, P. (1986) IR study of goethites of varying crystallinity and particle size. II—Crystallographic and morphologic changes among the goethites of two synthetic series. Clay Miner. 21, 201210.CrossRefGoogle Scholar
Clippe, P., Evrard, R. & Lucas, A.A. (1976) Aggregation effect on the infrared absorption spectrum of small ionic crystals. Phys. Rev. B. 14, 17151721.CrossRefGoogle Scholar
Farmer, V.C. (1974) The Infrared Spectra of Minerals. Mineralogical Society, London.CrossRefGoogle Scholar
Fey, M.V. & Dixon, J.B. (1981) Synthesis and properties of poorly crystalline hydrated aluminous goethites. Clays Clay Miner. 29, 91100.CrossRefGoogle Scholar
Forsyth, J.B., Hedley, I.G. & Johnson, C.E. (1968) The magnetic structure and hyperfine field of goethite (α-FeOOH). J. Phys. C. (Proc. Phys. Soc.) 2, 179188.CrossRefGoogle Scholar
Hayashi, S & Kanamori, H. (1980) Infrared study of surface phonon modes in α-Fe2O3 microcrystals. J. Phys. C: Solid State Phys. 13, 15291538.CrossRefGoogle Scholar
Isetti, G. & Penco, A.M. (1969) Studio sul pleocroismo infrarosso del diasporo. Periodico Mineral. Roma 38, 3143.Google Scholar
Kolesova, V.A. & Ryskin, Ya.I. (1962) IR absorption spectroscopy of αAlOOH, γAlOOH and GaOOH. Zhurnal struktumoi Khimii 3, 680684.Google Scholar
Mendelovici, E., Yariv, S & Villalba, R. (1979) Aluminium bearing goethite in Venezuelan laterites. Clays Clay Miner. 27, 368372.CrossRefGoogle Scholar
Rendon, J.L. & Serna, C.J. (1981) IR spectra of powder hematite: effects of particle size and shape. Clay Miner. 16, 375381.CrossRefGoogle Scholar
Rouxhet, P.G., Samudacheata, N., Jacobs, H & Anton, O. (1977) Attribution of the OH stretching bands of kaolinite. Clay Miner. 12, 171179.CrossRefGoogle Scholar
Ruppin, R. & Englman, R. (1970) Optical phonons of small crystals. Rep. Prog. Phys. 33, 149196.CrossRefGoogle Scholar
Sato, K., Sudo, T., Kurosawa, F. & Kammori, O. (1969) The influence of crystallization on the infrared spectra of α- and γ-ferric oxyhydroxides. Nippon Kinzoku Gakkaishi, J. Japan Inst. of Metals 33, 13711376.(in Japanese).CrossRefGoogle Scholar
Schulze, D. & Schwertmann, U. (1984) The influence of aluminum on iron oxides X. The properties of Al-substituted goethites. Clay Miner. 19, 521539.CrossRefGoogle Scholar
Schwarzmann, E. & Sparr, H. (1969) Die Wasserstoffbrückenbindung in Hydroxiden mit Diasporstruktur. Z. Naturforschg. 24b, 811.CrossRefGoogle Scholar
Schwertmann, U., Cambier, P. & Murad, E. (1985) Properties of goethites of varying crystallinity. Clays Clay Miner. 33, 369378.CrossRefGoogle Scholar
Stegmann, M.G., Vivien, D. & Mazieres, C. (1973) Etudes des modes de vibration infrarouge dans les oxyhydroxydes d'aluminium boehmite et diaspore. Spectrochimica Acta 29A, 16531663.CrossRefGoogle Scholar
Thiel, R. (1963) Zum system αFeOOH-αAlOOH. Zeitsch.für anorg, und allg. Chemie 326, 7078.CrossRefGoogle Scholar
Verdonck, L., Hoste, S., Roelandt, F.F. & Van Der Celen, G.P. (1982) Normal coordinate analysis of αFeOOH. A molecular approach. J. Mol. Structure 79, 273279.CrossRefGoogle Scholar
Wada, K. & Greenland, D.J. (1970) Selective dissolution and differential infrared spectroscopy for characterization of amorphous constituents in soil clays. Clay Miner. 8, 241254.CrossRefGoogle Scholar