影像科学与光化学 ›› 2012, Vol. 30 ›› Issue (6): 447-455.DOI: 10.7517/j.issn.1674-0475.2012.06.447

• 研究简报 • 上一篇    下一篇

空心玻璃微珠/TiO2复合微球的制备及其性能研究

袁静1,2, 安振国1, 张敬杰1, 李冰1   

  1. 1. 中国科学院 理化技术研究所,北京 100190;
    2. 中国科学院 研究生院,北京 100049
  • 收稿日期:2012-04-27 修回日期:2012-05-29 出版日期:2012-11-15 发布日期:2012-11-15
  • 通讯作者: 张敬杰
  • 基金资助:
    国家自然科学基金(50901083,51102248);中国科学院知识创新工程青年人才领域前沿项目资助(TYF0901).

Synthesis and Properties of Hollow Glass Spheres/ TiO2 Composite

YUAN Jing1,2, AN Zhen-guo1, ZHANG Jing-jie1, LI Bing1   

  1. 1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049,P.R.China
  • Received:2012-04-27 Revised:2012-05-29 Online:2012-11-15 Published:2012-11-15

摘要: 本文以脲为沉淀剂,通过化学沉淀法成功实现了锐钛矿型二氧化钛壳层在空心玻璃微珠表面的可控组装,从而制备出玻璃/二氧化钛核壳空心微球,并通过XRD、SEM、EDX和拉曼光谱对其结构、形貌、粒径、壳厚和化学组成进行了表征.提出了二氧化钛在空心玻璃微珠表面的定向生长的可能机制和形成过程.

关键词: 空心玻璃微珠, TiO2, 核/壳,

Abstract: Anatase TiO2 shells deposited on hollow glass microspheres with tunable morphologies were successfully prepared through a controllable chemical precipitation method with urea as the precipitator, and thus glass/TiO2 core/shell composite hollow microspheres were fabricated. The phase structure, morphology, particle size, shell thickness, and the chemical compositions, of the composite microspheres were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectrum and Raman spectra. The probable growth mechanism of the TiO2 shells and the formation process of the core/shell composite microspheres were proposed.

Key words: hollow glass microspheres, TiO2, core/shell, urea

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