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Citation: WU Liang-Zhuan, ZHI Jin-Fang. One-step Synthesis of Anatase-Crystalline Titania Hollow Spheres in Aqueous Solution[J]. Acta Physico-Chimica Sinica, ;2007, 23(08): 1173-1177. doi: 10.3866/PKU.WHXB20070807 shu

One-step Synthesis of Anatase-Crystalline Titania Hollow Spheres in Aqueous Solution

1.
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, P. R. China; Graduate University of the Chinese Academy of Sciences, Beijing 100049, P. R. China

Received Date: 19 March 2007
Available Online: 19 June 2007

A one-step procedure to fabricate anatase crystalline titania hollow spheres was reported. Anatase-crystalline titania hollow spheres were directly fabricated in aqueous solution with peroxo-titanium complex (PTC) as precursor and polystyrene (PS) spheres as template. Compared with the traditionally template method, the surface coating, the template removal and the crystallization of the titania shell were simultaneously finished in a one-step process. Transmission electron microscope (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD) and thermogravimetric analysis (TGA) were used to characterize the as-prepared titania hollowspheres. A possible formation mechanism was also discussed.
- Hollow spheres; Coating; Titaniumdioxide; Anatase
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