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Fabrication of cerium oxide nanoparticles: Characterization and optical properties

Fabrication of cerium oxide nanoparticles: Characterization and optical properties,10.1016/j.jcis.2011.01.063,Journal of Colloid and Interface Science

Fabrication of cerium oxide nanoparticles: Characterization and optical properties   (Citations: 2)
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Ceria (CeO2) is a technologically important rare earth material because of its unique properties and various engineering and biological applications. A facile and rapid method has been developed to prepare ceria nanoparticles using microwave with the average size 7nm in the presence of a set of ionic liquids based on the bis (trifluoromethylsulfonyl) imide anion and different cations of 1-alkyl-3-methyl-imidazolium. The structural features and optical properties of the nanoparticles were determined in depth with X-ray powder diffraction, transmission electron microscope, N2 adsorption–desorption technique, dynamic light scattering (DLS) analysis, FTIR spectroscopy, Raman spectroscopy, UV–vis absorption spectroscopy, and Diffuse reflectance spectroscopy. The energy band gap measurements of nanoparticles of ceria have been carried out by UV–visible absorption spectroscopy and diffuse reflectance spectroscopy. The surface charge properties of colloidal ceria dispersions in ethylene glycol have been also studied. To the best of our knowledge, this is the first report on using this type of ionic liquids in ceria nanoparticle synthesis.
Journal: Journal of Colloid and Interface Science - J COLLOID INTERFACE SCI , vol. 356, no. 2, pp. 473-480, 2011
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