In-situ synthesis of surfactant/silane modified hydrotalcites

Frost, Ray L., Zhu, Jianxi, He, Hongping, Yuan, Peng, Tao, Qi, Shen, Wei, & Bostrom, Thor E. (2008) In-situ synthesis of surfactant/silane modified hydrotalcites. Journal of Colloid and Interface Science, 319(2), 498 -504.

View at publisher


In this study, anionic surfactant and silane modified hydrotalcites were synthesized through a soft chemical in-situ method. The resulting materials were characterized using X-ray diffraction (XRD), high-resolution thermogravimetric analysis (HRTG), Fourier Transform Infrared spectroscopy (FTIR), Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM) and N2 adsorption-desorption. The Mg-Al hydrotalcite (LDH) and the only surfactant modified hydrotalcite (LDH-2) display similar XRD patterns while both surfactant and silane modified hydrotalcite (LDH-3) shows two distinct series of reflections, corresponding to hydrotalcite and smectite-like materials, respectively. The smectite-like materials shows a series of regular (001) reflections with d001=12.58 Å. Further supporting evidence was obtained from FTIR and TG, for example, the vibration at 1198 cm-1 corresponds to Si-O-Si stretching mode and the mass loss at ca. 861 oC to dehydroxylation. In LDH-2, the loaded surfactant are located in both the interlayer space and inter-particle pores with a “house of cards” structure as supported by FTIR, TG and N2 adsorption-desorption isotherms. Both electron microscopy (SEM and TEM) micrographs and N2 adsorption-desorption isotherms show that in-situ modification with surfactant and silane has a significant influence on the morphology and porous parameters of the resulting hydrotalcite materials.

Impact and interest:

38 citations in Scopus
Search Google Scholar™
36 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

Full-text downloads:

743 since deposited on 17 Apr 2008
31 in the past twelve months

Full-text downloads displays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.

ID Code: 13338
Item Type: Journal Article
Refereed: Yes
Keywords: Hydrotalcite, In, situ synthesis, Anionic surfactant, Silane, Nanochemistry
DOI: 10.1016/j.jcis.2007.11.037
ISSN: 0021-9797
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Colloid and Surface Chemistry (030603)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2008 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 17 Apr 2008 00:00
Last Modified: 29 Feb 2012 13:49

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page