Vibrational Spectroscopy of Intercalated Kaolinites. Part I. |
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| Authors: | Erzsébet Horváth János Kristóf Ray L. Frost |
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| Affiliation: | 1. Institute of Environmental Engineering and Chemical Technology, University of Pannonia , Veszprém, Hungary;2. Department of Analytical Chemistry , University of Pannonia , Veszprém, Hungary;3. Inorganic Materials Research Program, School of Physical and Chemical Sciences , Queensland University of Technology , Brisbane, Queensland, Australia |
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| Abstract: | Abstract The industrial application of kaolinite is closely related to its reactivity and surface properties. The reactivity of kaolinite can be tested by intercalation; that is, via the insertion of low-molecular-weight organic compounds between the kaolinite layers resulting in the formation of a nano-layered organo-complex. Although intercalation of kaolinite is an old and ongoing research topic, there is limited knowledge available on the reactivity of different kaolinites and the mechanism of complex formation, as well as on the structure of the complexes formed. Grafting and incorporation of exfoliated kaolinite in polymer matrices and other potential applications can open new horizons in the study of kaolinite intercalation. This article attempts to summarize (without completion) the most recent achievements in the study of kaolinite organo-complexes obtained with the most common intercalating compounds such as urea, potassium acetate, dimethyl sulphoxide, formamide, and hydrazine using vibrational spectroscopy combined with X-ray powder diffraction and thermal analysis. |
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| Keywords: | Kaolinite intercalation Raman microscopy infrared spectroscopy X-ray powder diffraction thermal analysis |
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