Jurnal Vokasi Indonesia
Vol 5, No 1 (2017): January - June

Investigation of Intercalation of Sodium-Montmorillonite with Octadecyl Trimethyl Ammonium Bromide Surfactant

Chanra J.B Soegijono (Material Science, Department of Physic, Universitas Indonesia)



Article Info

Publish Date
01 Jan 2017

Abstract

Sodium-montmorillonite (Na+-MMT) was intercalation modified with octadecyl trimethyl ammonium bromide (OTAB) in aqueous suspension via an ion exchange mechanism. Fourier transform infrared spectroscopy (FTIR) study indicates that OTAB is successfully intercalated into Na+-MMT layers and/or adsorbed on the surface of Na+-MMT. X-ray diffraction (XRD) analysis revealed that the interlayer spacing of the Na+-MMT was extended with the content of OTAB increasing, and the maximum spacing can reach about 3.80 nm. Results of scanning electron microscopy (SEM) analysis reveals the morphologies change from spherical-like particles to high-aspect ratio flakes after modification. Different configurations of OTA+ chains within MMT interlayer are proposed based on the above analysis. The results of contact angle and the dispersion analysis show that the surface wettability of Na+-MMT is converted from hydrophilic to organophilic.

Copyrights © 2017






Journal Info

Abbrev

jvi

Publisher

Subject

Arts Humanities Economics, Econometrics & Finance Education Public Health Social Sciences

Description

Jurnal Vokasi Indonesia is a applied and scientific journal which publishes original articles on new knowledge, research or applied research and other development related to vocational issue. The journal is published by Vocational Program universitas Indonesia and provides a broad-based forum for ...