Abstract
When colloid particles are dispersed in binary mixtures, an adsorption layer evolves on their surface which may function as a nanophase reactor for the synthesis of nanocrystalline materials. In the adsorption layer on the surface of ceramics (SiO 2, clays and layer double hydroxide, (LDH)), CdS, ZnS and metallic palladium nanoparticles with a diameter of 5–30 nm were grown. The appearance of semiconductor particles and the dependence of particle size upon Cd 2+ or Zn 2+ precursor concentration were followed by determination of a band gap energy. The rheological characteristics of suspensions containing nanoparticles are basically different from those of the original suspension. Solid powder samples obtained from the suspensions were studied using SAXS measurements; the size of nanoparticles located on ceramic surfaces was determined and changes in the structure of the support were monitored.
Published Version
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