MICRO- AND NANO-STRUCTURED COMPOSITE MATERIALS BASED ON LAMINAR DOUBLE HYDROXIDES OF HYDROTALCITE TYPE AND SILICATES OF THE CLAY FAMILY

摘要

The present invention relates to micro- or nano-structured composite materials based on layered double hydroxides of hydrotalcite type and silicates of the clay family. The invention also relates to the preparation process of these materials as well as to their use in various applications such as adsorbent, both of gases and of contaminants in aqueous medium, absorbent, acid neutralizer, ion exchanger, in medical and biological applications, as supports of materials of biological origin such as enzymes, as charges in polymers, as well as precursors of metal oxides and of catalysts.