A comparative study of co-precipitation and sol-gel synthetic approaches to fabricate cerium-substituted Mg-Al layered double hydroxides with luminescence properties
authors Smalenskaite, A; Vieira, DEL; Salak, AN; Ferreira, MGS; Katelnikovas, A; Kareiva, A
nationality International
journal APPLIED CLAY SCIENCE
author keywords Layered double hydroxides; Co-precipitation, sol-gel processing; Cerium substitution effects; Luminescent properties
keywords LIGHT-EMITTING-DIODES; X-RAY-DIFFRACTION; OPTICAL-PROPERTIES; GARNET PHOSPHORS; PHOTOLUMINESCENCE; FILMS; LDH; INTERCALATION; NANOCOMPOSITE; NANOPARTICLES
abstract Mg/Al/Ce layered double hydroxides (LDHs) intercalated with carbonate and hydroxide anions were synthesized using co-precipitation and sol-gel method. The obtained materials were characterized by thermogravimetric (TG) analysis, X-ray diffraction (XRD) analysis, fluorescence spectroscopy (FLS) and scanning electron microscopy (SEM). The chemical composition, microstructure and luminescent properties of these LDHs were investigated and discussed. The Ce-3 (+) substitution effects were investigated in the Mg3Al1-xCex LDHs by changing the Ce-3 (+) concentration in the metal cation layers from 0.05 to 10 mol%. It was demonstrated, that luminescence properties of cerium-substituted LDHs depend on the morphological features of the host lattice.
publisher ELSEVIER SCIENCE BV
issn 0169-1317
isbn 1872-9053
year published 2017
volume 143
beginning page 175
ending page 183
digital object identifier (doi) 10.1016/j.clay.2017.03.036
web of science category Chemistry, Physical; Materials Science, Multidisciplinary; Mineralogy
subject category Chemistry; Materials Science; Mineralogy
unique article identifier WOS:000403516000021
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5 year journal impact factor (jcr 2016): 3.391
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