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化学学报
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化学学报 ›› 2006, Vol. 64 ›› Issue (3): 198-202. 上一篇    下一篇

研究论文

纳米结构TiO2/PS及TiO2空心球的自组装与表征

宋秀芹*，杨晓辉，陈汝芬，魏雨   

  1. (河北师范大学化学学院 石家庄 050016)
  • 投稿日期:2005-04-12 修回日期:2005-10-31 发布日期:2006-02-14
  • 通讯作者: 宋秀芹

Self-assembly and Characterization of Nanostructural TiO2/PS and TiO2 Hollow Spheres

SONG Xiu-Qin*, YANG Xiao-Hui, CHEN Ru-Fen, WEI Yu   

  1. (Department of Chemistry, Hebei Normal University, Shijiazhuang 050016)
  • Received:2005-04-12 Revised:2005-10-31 Published:2006-02-14
  • Contact: SONG Xiu-Qin

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以TiCl4的盐酸溶液配制的TiO2溶胶为前驱体, 以聚苯乙烯微球为载体, 在表面活性剂存在下, 通过逐层自组装技术制备了纳米结构TiO2/PS及TiO2空心球. 利用XRD, SEM, TG-DTA等对复合颗粒进行了表征. 研究表明: 纳米结构TiO2/PS的组成、结构、形貌和粒度可通过溶胶酸度、组装时水解反应温度、煅烧温度、硫酸根的加入量来控制.

关键词: 纳米结构TiO2, TiO2/PS复合颗粒, TiO2空心球, 自组装

Using colloidal TiO2 from titanium tetrachloride as the precursor, and polystyrene (PS) beads as templates, nanostructure TiO2 composite and TiO2 hollow spheres were successfully prepared by the surfactant-assisted route and the technique of layer-by-layer self-assembly. SEM, XRD and TG-DTA were adopted for the study of the synthesized materials. The results indicated that the morphology, structure and the amount of TiO2 on the surface of TiO2/PS could be readily controlled by varying the reaction conditions such as temperature of assembly and calcination, pH of system and the doped amount of sulphate.

Key words: nanostructure TiO2, TiO2/PS composite sphere, TiO2 hollow sphere, self-assembly