Article Details


Sol-Gel Synthesis and Characterization of Non-Substituted and Europium- Substituted Layered Double Hydroxides Mg3/Al1-xEux

[ Vol. 6 , Issue. 3 ]

Author(s):

A. Smalenskaite, S. Sen, A. N. Salak, M G.S. Ferreira, R. Skaudzius, A. Katelnikovas and A. Kareiva   Pages 149 - 154 ( 6 )

Abstract:


The Mg/Al layered double hydroxides (LDHs) were successfully synthesized by novel aqueous sol-gel method. A series of europium-substituted layered double hydroxides (Mg/Al/Eu LDHs) were also synthesized using the same sol-gel processing. The Eu3+ substitution effects were investigated in the Mg3/Al1-xEux system by changing the amount of Eu3+ in the crystal lattice from 0.05 to 10 mol%. The samples obtained were characterized by X-ray diffraction (XRD) analysis, Fourier Transform Infrared spectroscopy (FT-IR), Thermogravimetric (TG) analysis, Scanning Electron Microscopy (SEM) and Fluorescence Spectroscopy (FLS). The results revealed that europium enters into a hydrotalcite structure containing Mg2+ and Al3+ cations in the brucite-like layers.

Keywords:

Layered double hydroxides, Mg/Al/Eu, sol-gel processing, europium substitution effects, luminescent properties.

Affiliation:

Department of Inorganic Chemistry, Faculty of Chemistry, Vilnius University, P.O. Box: LT-03225, Vilnius, Department of Chemistry, Faculty of Arts and Sciences, Dumlupınar University, 43820 Kütahya, Department of Materials and Ceramic Engineering/CICECO, University of Aveiro, 3810-193 Aveiro, Department of Materials and Ceramic Engineering/CICECO, University of Aveiro, 3810-193 Aveiro, Department of Inorganic Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Department of Analytical and Environmental Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Department of Inorganic Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius

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