A new method of intercalation by anion exchange in layered double hydroxides

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Eduardo L. Crepaldi, Paulo C. Pavan and João B. Valim


Abstract

A new anion exchange method of intercalation in layered double hydroxides (LDHs), based on the formation and organic phase extraction of a salt between dodecylsulfate anions and a cationic surfactant (CTA), is described which is shown to be a very fast and efficient way to obtain a wide variety of LDH-intercalated organic and inorganic anions, using the precursor Zn(II)–Cr(III)–dodecylsulfate LDH.


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