The development of nanocomposites for surface coating of particles have been the main focus of research in several areas. The new unusual physical and chemical properties absent in the same material in macro and microscopic size are observed in these new nanomaterials. This work presents a procedure for preparation of nanocomposites based on "halloysite nanoclay" particles nanocoated with TiO2 and Ni, using the polymeric precursor method. By means of this synthesis, particle size ranging between 7 and 35 nm were obtained. The products were characterized by size, physisorption of N2 at 77 K, X-ray diffraction, scanning electron microscopy and high resolution transmission electron microscopy. The results show that the preparation of nanocoatings is a highly promising strategy for the fabrication of novel composites based on TiO2/Ni on clay surfaces with technological applications.
nanocomposites; nanocoating; titanium dioxide; nickel
