Study of the textural properties of some layered double hydroxides

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Abstract

Layered double hydroxides (LDHs) are one of the nano ordered layered compounds. The importance of layered compound is based on their ability to retain chemical species with electrical charges compatible to those of the layers. They may be used in areas such as catalysis, industry, medicine, environmental protection, construction etc. Layered double hydroxides are anionic clays comprising positively charged layers with anions and water molecules intercalated in the interlayer region. The aim of this work was to obtain Cu and/or Ni substituted layered double hydroxides with different micromorphology characteristics. The obtained results pointed out that the relationship between LDHs composition and their textural properties can be controlled. The layered double hydroxides samples were fabricated by using direct coprecipitation method. Field Emission Scanning Electron Microscope (FE-SEM) and X-Ray Diffraction (XRD) analyses were used to study the textural characteristics and the structural characteristics of the samples.

1. Gomes Silva, C.; Bouizi, Y.; Fornes, V.; Garcia, H. Layered Double Hydroxides as Highly Efficient Photocatalysts for Visible Light Oxygen Generation from Water. J. Am. Chem. Soc. 2009, 131, 13833-13839.

2. Hetterley, R. D.; Mackey, R.; Jones, J. T. A.; Khimyak, Y. Z., Fogg A. M.; Kozhevnikov, I. V. One-step conversion of acetone to methyl isobutyl ketone over Pd-mixed oxide catalysts prepared from novel layered double hydroxides. J. Catal. 2008, 258, 250-255.

3. Richardson, M. C.; Braterman, P. S. Cation exchange by anion-exchanging clays: the effects of particle aging. J. Mater. Chem. 2009, 19, 7965-7975.

4. Carja, G.; Nakajima, A.; Dranca, C.; Okada, K. Nanoparticles of nickel oxide: growth and organization on zinc-substituted anionic clay matrix by one-pot route at room temperature. J. Nanopart. Res. 2010, 12, 3049-3056.

5. Carja, G.; Kameshima Y.;Okada, K. Nanoparticles of iron and vanadium oxides supported on iron substituted LDHs: Synthesis, textural characterization and their catalytic behavior in ethylbenzene dehydrogenation. MicroporousMaterials 2008, 115, 541-547.

6. Chimentao, R. J.; Abello S.; Medina, F.; Llorca, J.; Sueiras, J. E.; Cesteros, Y.; Salagre, P. Defect-induced strategies for the creation of highly active hydrotalcites in base-catalyzed reactions. J. Catal. 2007, 252, 249-257.

7. Carja, G.; Kameshima, Y.; Nakajima, A.; Dranca, C.; Okada, K. Nanosized silver-anionic clay matrix as nanostructured ensembles with antimicrobial activity. Int. J. Antimicrob. Agents. 2009, 34, 534-539.

Acta Chemica Iasi

The Journal of "Alexandru Ioan Cuza" University from Iasi

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