Characterization of acid sites on modified kaolinite by FTIR spectra of pyridine adsorbed

FTIR spectroscopy of adsorbed probe molecules has been existent for some decades and well-developed technique for analysis the composition and structure of the functional groups. In this research, we studied the surface structure of functional groups on modified kaolinite using pyridine. Modified ka...

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Bibliographic Details
Main Authors: Wahyuni, Nelly, Zissis, Georges, Mouloungui, Zéphirin
Format: Conference Proceeding
Language:English
Subjects:
Fourier transforms
Functional groups
Gravimetric analysis
Infrared spectroscopy
Kaolinite
Lewis acid
Spectrum analysis
Surface structure
Zinc chloride
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Summary:FTIR spectroscopy of adsorbed probe molecules has been existent for some decades and well-developed technique for analysis the composition and structure of the functional groups. In this research, we studied the surface structure of functional groups on modified kaolinite using pyridine. Modified kaolinite is made by a simple process, impregnation metakaolinite with zinc chloride and characterized by SEM-EDX and thermal gravimetric analysis. Zinc as a Lewis acid site is identified on modified kaolinite at 1449 cm−1.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5065002