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Issue 4, 2000
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Abstract

A new hybrid material with the composition [Zn1.9Al(OH)5.8][Cl2C6H3OCH2CO2·2.83H2O] has been synthesised via ion exchange of chloride by ions of a molecule belonging to the pesticide family, 2,4-dichlorophenoxyacetate (2,4D). The ion exchange in the zinc–aluminium–chloride layered double hydroxide, [Zn–Al–Cl], was investigated by X-ray diffraction and infrared spectroscopy. The effects of the anion concentration in solution, the 2,4D/[Zn–Al–Cl] molar ratio, the ageing time and the temperature on the ion exchange were studied. The best sample, in terms of crystallinity and extent of ion exchange, was obtained at 100 °C in a 0.004 M 2,4D solution in which the 2,4D/[Zn–Al–Cl] molar ratio was equal to 11, with 24 h of stirring time. This hybrid material was further characterised by chemical analyses and its thermal behaviour was also studied.

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Article information


Submitted
16 Nov 1999
Accepted
19 Jan 2000
First published
29 Feb 2000

J. Mater. Chem., 2000,10, 1007-1011
Article type
Paper

Preparation of a new stable hybrid material by chloride–2,4-dichlorophenoxyacetate ion exchange into the zinc–aluminium–chloride layered double hydroxide

M. Lakraimi, A. Legrouri, A. Barroug, A. De Roy and J. Pierre Besse, J. Mater. Chem., 2000, 10, 1007
DOI: 10.1039/A909047I

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