Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 67: Issue 1

Simultaneous DTA-TG Study of Montmorillonite Mechanochemically Treated with Crystal-violet

Authors:
I. Lapides The Hebrew University of Jerusalem Department of Inorganic and Analytical Chemistry Jerusalem 91904 Israel Jerusalem 91904 Israel

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S. Yariv The Hebrew University of Jerusalem Department of Inorganic and Analytical Chemistry Jerusalem 91904 Israel Jerusalem 91904 Israel

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D. Golodnitsky Tel Aviv University Wolfson Applied Material Research Center, School of Chemistry, Sackler Faculy of Exact Sciences Tel Aviv 69978 Israel Tel Aviv 69978 Israel

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Pages:
99–112
Online Publication Date:
02 Nov 2004
Publication Date:
25 Jan 2002
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1013737914178
Keywords:
crystal violet; DTA; mechanochemical adsorption; montmorillonite; organo-smectites
Restricted access

Abstract  

The mechanochemical solid-state adsorption of the cationic dye crystal violet (CV) by montmorillonite was investigated by XRD and simultaneous DTA-TG. Solid CV was ground with the clay for 5 min and four different varieties of CV mechanochemically treated clay were investigated. X-ray and DTA data were compared with those of CV-montmorillonite obtained from an aqueous suspension. X-ray and DTA studies of a ground mixture and a ground mixture heated at 110°C suggest that the mechanochemical adsorption of organic cations takes place on the external surfaces of the clay. The study of a ground mixture washed with water, and washed with water and acetone reveal that water is essential for the penetration of CV into the interlayer space.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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