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New Techniques for Studying the Intercalation of Kaolinites from Georgia with Formamide

Published online by Cambridge University Press:  28 February 2024

Ray L. Frost ,
Daniel A. Lack ,
Gina N. Paroz  and
Thu Ha T. Tran
Ray L. Frost
Affiliation:
Centre for Instrumental and Developmental Chemistry, Queensland University of Technology, 2 George Street, GPO Box 2434, Brisbane Queensland 4001, Australia
Daniel A. Lack
Affiliation:
Centre for Instrumental and Developmental Chemistry, Queensland University of Technology, 2 George Street, GPO Box 2434, Brisbane Queensland 4001, Australia
Gina N. Paroz
Affiliation:
Centre for Instrumental and Developmental Chemistry, Queensland University of Technology, 2 George Street, GPO Box 2434, Brisbane Queensland 4001, Australia
Thu Ha T. Tran
Affiliation:
Centre for Instrumental and Developmental Chemistry, Queensland University of Technology, 2 George Street, GPO Box 2434, Brisbane Queensland 4001, Australia
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Abstract

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A new technique utilizing Raman microscopy and Fourier transform infrared (FTIR) microsacopy is described. This technique uses thin films of oriented clay aggregates on glass slides suitable also for X-ray diffraction (XRD). Raman microscopy proved the most useful technique providing both better resolution of the OH-stretching bands and greater spectral resolution. Kaolinites from Washington County, Georgia, with varying defect structures involving layer stacking were intercalated with formamide and additional Raman bands were observed at 3610 and 3627 cm−1. A concomitant decrease in the inner-surface OH band intensities at 3695 and 3685 cm−1 occurred. These bands are attributed to the inner-surface OH hydrogen bonded to the formamide molecule through the C=O group. The 3627 cm−1 band is sharp with a half width of 7.5 cm−1 and comprises 11% of the total normalized band area. When two additional OH bands are observed at 3610 and 3627 cm−1 two C=O bands at 1674 and 1658 cm−1 are observed also. The two additional Raman inner-surface OH bands were not observed in the IR spectra. However, a band of low intensity was observed at 3590 cm−1. Models for the intercalation of formamide in kaolinites are proposed.

Keywords

FormamideHydroxylsInfrared MicroscopyIntercalationKaoliniteRaman MicroprobeX-ray Diffraction
Type
Research Article
Information
Clays and Clay Minerals , Volume 47 , Issue 3 , June 1999 , pp. 297 - 303
Copyright
Copyright © 1999, The Clay Minerals Society

References

Cruz, M. Laycock, A. White, J.L. and Heller, L., 1969 Perturbation of the hydroxyl groups in intercalated kaolinite donor-accepted complexes Proceedings of the International Clay Conference Tokyo. Volume 1 775–789.Google Scholar
Cruz, M. Jacobs, H. and Fripiat, J.J., 1973 Interlayer bonding in kaolin minerals Proceedings of the International Clay Conference, 1972, CSIC 35–46.Google Scholar
Frost, R.L., 1996 The Application of Raman microscopy to the Study of Minerals Chemistry in Australia 63 446–448.Google Scholar
Frost, R.L., 1998 Hydroxyl deformation in kaolins Clays and Clay Minerals 46 280–289 10.1346/CCMN.1998.0460307.CrossRefGoogle Scholar
Frost, R.L. and Kristof, J., 1997 Intercalation of halloysite- A Raman spectroscopic study Clays and Clay Minerals 45 68–72 10.1346/CCMN.1997.0450107.CrossRefGoogle Scholar
Frost, R.L. and Shurvell, H.F., 1997 Raman microprobe spectroscopy of halloysite Clays and Clay Minerals 45 68–72 10.1346/CCMN.1997.0450107.CrossRefGoogle Scholar
van der Frost, R.L. and Gaast, S.J., 1997 Kaolinite hydrox-yls-A Raman microscopy study Clay Minerals 32 293–306.Google Scholar
Frost, R.L. Fredericks, P.M. and Shurvell, H.F., 1996 Raman microscopy of some kaolinite clay minerals Canadian Journal of Applied Spectroscopy 41 10–14.Google Scholar
Frost, R.L. Tran, T.H. and Kristof, J., 1997 FT Raman spectroscopy of the lattice region of kaolinite and its intercalates Vibrational Spectroscopy 13 175–186 10.1016/S0924-2031(96)00049-5.CrossRefGoogle Scholar
Frost, R.L. Tran, T.H. and Kristof, J., 1997 Intercalation of an ordered kaolinite-A Raman microscopy study Clay Minerals 32 587–596 10.1180/claymin.1997.032.4.09.CrossRefGoogle Scholar
Hinckley, D.N., 1963 Variability in “crystallinity” values among the kaolin deposits of the coastal plain of Georgia and South Carolina Clays and Clay Minerals 11 229–235 10.1346/CCMN.1962.0110122.CrossRefGoogle Scholar
Hurst, V.J. and Pickering, S.M., 1997 Origin and classification of coastal plain kaolins, Southeastern USA and the role of ground water and microbial action Clays and Clay Minerals 45 274–285 10.1346/CCMN.1997.0450215.CrossRefGoogle Scholar
Keller, W.D. and Kunze, R., 1964 Processes of origin and alteration of clay minerals Soil Clay Mineralogy 3–75.Google Scholar
Kristof, J. Frost, R. L. Felinger, A. and Mink, J., 1997 FT-IR spectroscopic studies of intercalated kaolinites Journal of Molecular Structure 41 119–122.CrossRefGoogle Scholar
Ledoux, R.L. and White, J.L., 1966 Infrared studies of hydrogen bonding interaction between kaolinite surfaces and intercalated potassium acetate, hydrazine, formamide and urea Journal of Colloid and Interface Science 21 127–152 10.1016/0095-8522(66)90029-8.CrossRefGoogle Scholar
Olejnik, S. Posner, A.M. and Quirk, J.P., 1970 Intercalation of polar organic compounds into kaolinite Clay Minerals 8 421–434 10.1180/claymin.1970.008.4.05.CrossRefGoogle Scholar
Pickering, S.M. Hurst, V.J. and Elzea, J.M., 1997 Mineralogy, stratigraphy and origin of the Georgia kaolins. Field Excursion F4 Guidebook for the Kaolin Field Trip to the Macon District. 11th International Clay Mineral Conference, June, 1997 15–21.Google Scholar
Wada, K., 1961 Lattice expansion of the kaolin minerals American Mineralogist 46 79–91.Google Scholar