Influence of charge density and chain length on the interaction between organic anion and montmorillonite
- 139 Downloads
Anionic surfactant sodium dodecyl sulfate (SDS), cationic surfactant cetyl trimethyl ammonium bromide (CTAB) and acrylic acid (AA) were introduced as molecular models to study the interaction between montmorillonite and organic molecules with different charge or chain length. The compounds were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and 13C nuclear magnetic resonance (13C NMR). The results show organic anion could interact strongly with montmorillonite, even the molecules could intercalate into the layers of MMT.
Key wordschain length charge density interaction montmorillonite.
Unable to display preview. Download preview PDF.
- Lin F H, Lee Y H, Wang J M, et al. A Study of Purified Montmorillonite Intercalated with 5-Fuorouracil as Drug Carrier[J]. Biomaterials, 2002, 23:1 981–1 987Google Scholar
- Fejér I, Kata M, Erös I, et al. Release of Cationic Drugs from Loaded Clay Minerals [J]. Colloid. Polym. Sci. 2001, 279:1 177–1 182Google Scholar
- Lagaly G, Ziesmer K. Colloid Chemistry of Clay Minerals: the Coagulation of Montmorillonite Dispersions [J]. Adv. Colloid Interface Sci. 2002, 100–102:105–128Google Scholar
- Farmer V C. The Infrared Spectra of Minerals[M]. London: Mineralogical Society, 1974Google Scholar
- Xu S W, Zheng J P, Tong L, et al. Interaction of Functional Groups of Gelatin and Montmorillonite in Nanocomposite[J]. J. Appl. Polym. Sci. 2006, 101:1 556–1 561Google Scholar
- Lagaly G. Layer Charge Determination by Alkylammonium Ions. In: A.R. Mermut, Editor. Layer Charge Characteristics of 2:1 Silicate Clay Minerals[R]. CMS Workshop Lectures, The Clay Minerals Society, 1994Google Scholar
- Karabomi S, Smit B, Heidug W. The Swelling of Clay: Molecular Simulations of the Hydration of Montmorillonite[J]. Science, 1996, 271:1 102–1 104Google Scholar