Journal of Nanotechnology and Materials ScienceJournal of Nanotechnology and Materials ScienceJournal of Nanotechnology and Materials ScienceJournal of Nanotechnology and Materials Science2377-1372Ommega Online PublishersNew Jersey, USA168810.15436/2377-1372.17.1688Research ArticleComparison of different synthesis ways for Mg–Al- layered double hydroxides (LDH): effects of ultrasound treatment and Characterization of the structural phases by Rietveld refinement.Comparison of different synthesis ways for Mg–Al- layered double hydroxides (LDH): effects of ultrasound treatment and Characterization of the structural phases by Rietveld refinement.babaysalemLaboratory of the Physico-Chemistry of Solid States LR11 ES51 University of Sfax Road of Soukra km 4 Sfax3038 TunisiaEditor* E-mail: salem.babay@yahoo.fr
The authors have declared that no competing interests exist.
20171212201742JNMS-17-RA-168816092017051220172017Creative Commons Attribution LicenseThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. nbsp emsp emsp Layered Double Hydroxides LDH with carbonate as interlayer anion and an Mg2 Al3 ratio of 3 also denoted as Mg ndash Al ndash CO3 ndash LDHs in this paper were synthesized based on the coprecipitation method under different synthesis conditions under ultrasound treatment and without ultrasound treatment The effects of ultrasound irradiation on the structural textural and sorption behavior of fluoride ion from contaminated water by the LDH products were studied resulting in higher basal spacing rsquo s smaller crystallite size and higher removal efficiency of fluoride in contaminated water compared to an Mg-Al layered double hydroxides prepared without sonication The material of Mg-Al-CO3 molar ratio Mg Al of 3 prepared by conventional method of co-precipitation without ultrasound treatment is characterized by Rietveld refinement of the X-ray powder diffraction pattern DTA-TGA Infrared and Raman spectroscopes The thermal behavior of synthetic hydrotalcite is studied by heating stage Raman microscopy and heating stage of X-ray powder diffraction The decomposition of this hydrotalcite-like structure on heating up to 600 deg C yields a mixture of two phases a percales MgO phase and a spinal-like phase of MgAl2O4 which is also tested in the removal of fluoride in contaminated water and which has higher removal efficiency 64 5 10