Fabrication of cerium oxide nanoparticles: Characterization and optical properties

被引：278

作者：

Goharshadi, Elaheh K. ^{[1
,2
]}

Samiee, Sara ^{[1
]}

Nancarrow, Paul ^{[3
]}

机构：

[1] Ferdowsi Univ Mashhad, Dept Chem, Mashhad 91779, Iran

[2] Ferdowsi Univ Mashhad, Ctr Nano Res, Mashhad 91779, Iran

[3] Queens Univ Belfast, Sch Chem & Chem Engn, Belfast BT7 1NN, Antrim, North Ireland

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2011年 / 356卷 / 02期

关键词：

Ceria nanoparticle; Ionic liquid; Microwave; Optical property; ULTRAVIOLET-ABSORPTION SPECTRA; HYDROTHERMAL SYNTHESIS; GREEN SYNTHESIS; BLUE-SHIFT; FUEL-CELL; CEO2; PARTICLES; OXIDATION; EXTRACTION; DIOXIDE;

D O I：

10.1016/j.jcis.2011.01.063

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 7 nm 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, N-2 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. (C) 2011 Elsevier Inc. All rights reserved.

引用

页码：473 / 480

页数：8

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