QUT ePrints

Changes in the surfaces of adsorbed paranitrophenol on HDTMA organoclay -an XRD and TG study

Frost, Ray L., Zhou, Qin, He, Hongping, & Xi, Yunfei (2007) Changes in the surfaces of adsorbed paranitrophenol on HDTMA organoclay -an XRD and TG study. Journal of Colloid and Interface Science, 307(1), pp. 50-55.

View at publisher

Abstract

Surfactant modified montmorillonitic clays synthesised by the ion exchange using the hydrothermal reaction method have been compared using XRD and thermal analysis. X-ray diffraction (XRD) shows the changes in the surface properties of organo-clays through expansion with surfactant loading. A polynomial relationship exists between the basal spacing and the CEC loading described by the equation y = 0.3232x2 + 0.2052x + 1.2834 with an R2 = 0.9955. Different arrangements of the surfactant molecules in the organo-clays are inferred from the changes in basal spacings. Paranitrophenol also causes the expansion of the montmorillonite clay and effects the arrangements of the surfactant molecules within the clay layers. Changes in the surfactant molecular arrangements were analysed by thermogravimetry. Additional thermal decomposition steps were observed when paranitrophenol is adsorbed on the organoclay.

Impact and interest:

49 citations in Scopus
Search Google Scholar™
43 citations in Web of Science®

Citation countsare 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:

502 since deposited on 14 Feb 2007
53 in the past twelve months

Full-text downloadsdisplays 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: 6195
Item Type: Journal Article
Additional Information: This paper is one of a series of papers on otganoclays the application of which is the adsorption of organic molecules from aqueous sytems
Keywords: montmorillonite, organo, clay, surfactant, high resolution thermogravimetric analysis, X, ray diffraction
DOI: 10.1016/j.jcis.2006.11.016
ISSN: 0021-9797
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2007 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 14 Feb 2007
Last Modified: 29 Feb 2012 23:37

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page