Characterization of Montmorillonites by Infared and Raman Spectroscopy for Preparation of Polymer-Clay Nanocomposite

0497118 - ÚGN 2020 RIV US eng J - Článek v odborném periodiku
Vaculíková, Lenka - Plevová, Eva - Ritz, M.
Characterization of Montmorillonites by Infared and Raman Spectroscopy for Preparation of Polymer-Clay Nanocomposite.
Journal of Nanoscience and Nanotechnology. Roč. 19, č. 5 (2019), s. 2775-2781. ISSN 1533-4880
Grant CEP: GA MŠMT(CZ) LO1406
Institucionální podpora: RVO:68145535
Klíčová slova: montmorillonite * FT-IR spectroscopy * FT-Raman spectroscopy
Obor OECD: Analytical chemistry
Impakt faktor: 1.134, rok: 2019
Způsob publikování: Omezený přístup
https://www.ingentaconnect.com/content/asp/jnn/2019/00000019/00000005/art00041

The contribution demonstrates the potential and applicabillity of infrared and Raman spectroscopy in identification and structural characterization of montmorillonites. The vibrational spectra of selected montmorillonites, obtained by FT-IR spectroscopy in the near and middle IR region together with FT-Raman spectra are presented.The detailed structural chemistry of clay minerals is an important aspect of polymer-clay nanocomposite research. A variety of analytical methods are currently available for material characterization.
Keep in mind, however, that each method has some limitations. The best results are usually
achieved by a combination of several analytical methods. The contribution demonstrates the potential
and applicability of infrared and Raman spectroscopy in identification and structural characterization
of montmorillonites. The vibrational spectra of montmorillonites (SAz-2, STx-1, SWy-2
and Kunipia-F), obtained by Fourier Transform infrared spectroscopy in the near infrared region
(8000–4000 cm−1) and in the middle infrared region (4000–400 cm−1) together with Fourier Transform
Raman measurements in the region from 4000–50 cm−1, are presented. The aim of the
experimental study was to compare the spectral data of both analytical techniques in terms of
their sensitivity to chemical composition, isomorphic substitution of central atoms, and layer stacking
order of the clay minerals. The results confirmed that Fourier Transform infrared spectroscopy
through middle infrared and near infrared spectral regions provided the most comprehensive information
about octahedral, tetrahedral and hydroxyl structure units of montmorillonites.
Trvalý link: http://hdl.handle.net/11104/0289705