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Synthesis and Characterization of Gd2O3 Hollow Microspheres Using a Template-Directed Method

College of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430074, Hubei, China
Authors to whom correspondence should be addressed.
Academic Editor: Klara Hernadi
Materials 2016, 9(5), 323;
Received: 30 January 2016 / Revised: 19 April 2016 / Accepted: 20 April 2016 / Published: 28 April 2016
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Uniform rare-earth gadolinium oxide (Gd2O3) hollow microspheres, as formed through a urea-assisted homogenous precipitation process using carbon spheres as a template and a subsequent heat treatment, were characterized by using X-ray diffraction, Fourier transformed infared spectroscopy, thermogravimetry, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy and Brunauer-Emmett-Tellet surface area measurement. The results indicate that the final products can be indexed to a cubic Gd2O3 phase with high purity and have a uniform morphology at 500 nm in diameter and 20 nm in shell thickness. The as-synthesized Gd2O3 hollow microspheres exhibited a superior photooxidation activity to that of Gd2O3 powder and an effect similar to P25, significantly broadening the potential of Gd2O3 hollow microspheres for many practical applications. View Full-Text
Keywords: gadolinium oxide; hollow microspheres; preparation; photooxidation gadolinium oxide; hollow microspheres; preparation; photooxidation

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Jiang, X.; Yu, L.; Yao, C.; Zhang, F.; Zhang, J.; Li, C. Synthesis and Characterization of Gd2O3 Hollow Microspheres Using a Template-Directed Method. Materials 2016, 9, 323.

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