Application of these materials includes catalysis, sorption and ion exchange, as well as uses in intercalation chemistry. Polymeric units, containing the metallic cations between phosphate groups, form the overlapping lamella. This kind of structural arrangement was first synthesized with tetravalent metals and more recently with a series of divalent cations. This class of layered inorganic-organic hybrid compounds presents an inorganic backbone with pendant organic groups on both sides of the central layer. There is considerable interest in the synthesis of new layered metal phosphonate salts due to their robust and yet flexible structural properties. A wide variety of layered inorganic-organic hybrids have been prepared by intercalation reactions and their properties and possible applications have been investigated. Materials design from layered materials through soft-chemical routes is a promising strategy, since the resulting layered inorganic-organic hybrids may have unique nanostructures controlled by host-guest interactions. Organization of organic species on the surface of inorganic solids is a way to prepare inorganic-organic hybrids. Suspended intercalated phosphate adsorbed copper cation from ethanolic solution at liquid/solid interface. The amount of attached amino groups surfaces were 14.78 and 7.58 mmol∙g −1 for CaP/MABA and CaP/PABA, respectively. The products were characterized by elemental analysis, infrared spectroscopy, X-ray diffraction, thermogravimetry and scanning electron microscopy. Layered calcium phosphate was intercalated using m-aminobenzoic acid and p-aminobenzoic acid, originating materials named CaP/MABA and CaP/PABA. Keywords: Layered Compounds Intercalation Reactions Adsorption Departamento de Química, Universidade Estadual de Maringá, Maringá, BrazilĮmail: Novemrevised Decemaccepted December 22, 2012
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