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Title: Morphological and Microstructural Characterization of Organoclays from Low Smectite Containing Clays Materials
Authors: Nwankwere, Emeka Thompson
Keywords: Clays
Issue Date: 3-Feb-2017
Publisher: Chemical Science International Journal
Series/Report no.: Chemical Science International Journal 18(1): 1-17, 2017;Article no.CSIJ.29703;
Abstract: Two low smectite-containing clay materials were modified, using hexadecyltrimethylammonium bromide (HDTMAB) as intercalating agents, under very mild experimental conditions, to investigate their potentials as suitable organoclays for industrial and environmental applications. Changes in the general morphological and microstructural characteristics were studied by X-Ray Diffraction (XRD) analysis, Thermogravimetric Analysis (TGA), Brauner Emmet Taylor (BET) Analysis, Fourier Transform Infrared (FTIR) Spectroscopy and Scanning Electron Microscopy (SEM) before and after modification. The shift in XRD reflections after intercalation indicated that the HDTMA chains adopt monolayer and bilayer arrangements within the clay interlayers and were largely dependent on the reaction time and surfactant loading. This resulted in decreased specific surface area and increased pore sizes in the organoclay samples.
Description: Emeka Thompson Nwankwere. Department of Physical Sciences, Kampala International University, Uganda.
ISSN: 2249-0205
Appears in Collections:Physical Sciences

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