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