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Synthesis of CeO2 Hollow Nanosphere Using Carbon S…
Author:CHENFeng1 CHENZhigang2 LIXiazhang3 LUXiaowang3 ZHAOXiaobing3 
Keyword:carbon sphere  ceria  template  self-assembly  
Year,volume(Issue):page number:2011,39(3):397-402

Carbon sphere template with a diameter of about 300 nm was uniformly coated with CeO2 nanoparticles by inorganic precursor self-assembly. The CeO2 hollow nanospheres were obtained after the carbon sphere template was removed through calcination at a suitable temperature. Transmission electron microscope, selected area electron diffraction, field emission scanning electron microscope, X-ray diffraction, X-ray photoelectron spectrum, thermogravimetry and differential thermal analysis were employed to characterize the structure of the CeO2 hollow nanospheres. The results reveal that the face-centered cubic-phase CeO2 hollow nanospheres with a diameter of about 250 nm as well as the thin shell thickness about 20 nm is prepared. It indicates that this material has good decolorizing performance for methylene blue simulative dyeing wastewater. The decolorizing rate can reach 95% for simulative wastewater after 4 h.

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Foundation item:
国家自然科学基金(20771047);江苏省自然科学基金(BK20- 08541)及江苏省工业支撑计划(BE2008033)资助项目
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