Related Experiment Video
Updated: Aug 14, 2026

Deposition of Porous Sorbents on Fabric Supports
Published on: June 12, 2018
Delamination behavior of silicate layers by adsorption of cationic surfactants
1School of Earth and Environmental Sciences, Seoul National University, Seoul, 151-742, Korea. lsyblue@hanmir.com
Abstract:
Smectite that has reacted for 48 h with hexadecyltrimethylammonium (HDTMA) cations equivalent to 0.01-3.0 times the cation exchange capacity (CEC) converts to HDTMA-smectite. The microstructure of this organoclay is observed using X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM). When Na cations in the interlayer of clay are exchanged with HDTMA ions, the changes in internal and external surface configuration are augmented by the intercalation of organic surfactants, showing a heterogeneous increase of interlayer spacings. As HDTMA loading increases, the chance of delaminated layers being developed increases locally in the low-charge interlayer regions by the sufficient adsorption of organic surfactants beyond the CEC due to the tendency of alkyl chain interaction.
Related Concept Videos
Surface Active Agents
Micelles
Colloidal precipitates
Solubility
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules, atoms, and/or ions)...
Colloids
Debye–Huckel–Onsager Conductance Equation

