Chakraborty, Jui and Sengupta, Somoshree and Dasgupta, Sudip and Chakraborty, Manjusha and Ghosh, Swapankumar and Mallik, Sudipta and Das, Kamal Lal and Basu, Debabrata (2012) Determination of trace level carbonate ion in Mg-Al layered double hydroxide: Its significance on the anion exchange behaviour. Journal of Industrial and Engineering Chemistry, 18 (6). pp. 2211-2216. ISSN 1226-086X

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Abstract

The presence of trace level (<1 ppm) carbonate ion in the interlayer space of MgAl-LDH has been estimated by ion chromatography technique using a novel inverse chemical suppression method using 0.5 mM H2SO4 as mobile phase and 25 mM LiCl as regenerating solution. The presence of carbonate ion in the LDH structure was found to affect the anion exchange capacity of MgAl-LDH. This has been illustrated by carrying out anion exchange of nitrate ion in the MgAl-LDH structure with chloride ion. The importance of this simple but accurate technique for the carbonate ion estimation is demonstrated and reported in this communication. (C) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

Item Type:	Article
Uncontrolled Keywords:	Layered double hydroxides; Anionic clay; Anion exchange; Intercalation; Carbonate estimation; Ion chromatography
Subjects:	Engineering Materials
Divisions:	Bioceramics & Coating
Depositing User:	Bidhan Chaudhuri
Date Deposited:	14 Jan 2013 11:34
Last Modified:	13 Mar 2016 16:01
URI:	http://cgcri.csircentral.net/id/eprint/1838

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