高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (6): 980.

• 研究论文 • 上一篇    下一篇

异相晶核法液相合成金红石型TiO2纳米晶

杨少凤, 赵纯, 宋利珠, 赵敬哲, 王子忱, 徐慧芳, 李伯符   

  1. 吉林大学化学系, 长春 130023
  • 收稿日期:1999-12-09 出版日期:2001-06-24 发布日期:2001-06-24
  • 通讯作者: 宋利珠(1952年出生),男,副教授,从事功能材料研究.
  • 基金资助:

    吉林省科技发展规划及高等学校骨干教师资助课题

Synthesis of Rutile Tatania by Heterogeneous Nucleation Methods

YANG Shao-Feng, ZHAO Chun, SONG Li-Zhu, ZHAO Jing-Zhe, WANG Zi-Chen, XU Hui-Fang, LI Bo-Fu   

  1. Department of Chemistry, Jilin University, Changchun 130023, China
  • Received:1999-12-09 Online:2001-06-24 Published:2001-06-24

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摘要： 分别以SnCl2·2H2O和SnCl4·5H2O为锡源,采用胶溶晶核法,经沉淀和胶溶过程,在液相中一步合成了金红石型TiO2.详细考察了各种胶溶条件对产物结构的影响,并通过两种锡源实验结果的比较对异相晶核法中两种锡源的成晶机理进行了分析.所合成的金红石型TiO2晶粒度为20～50nm,两种方法获得完全金红石型TiO2所需引入SnO2的最低物质的量的分数分别为10%和8%.

关键词: 异相晶核法, 液相合成, 金红石型TiO2纳米晶

Abstract: Rutile tatania powders were synthesized in aqueous solutions, avoiding the appearance of TiO2 in anatase form, by heterogeneous nucleation methods with SnCl2·2H2O(method A) and SnCl4·5H2O(method B) as the raw materials respectively. The effects of nuclei and peptizing conditions on the structures of products were investigated. The mechanisms of nucleation were studied by comparing the results of the two different raw materials. The content of SnO2 in the samples with a full rutile structure was 10% and 8%(molar fraction) for the two methods respectively.

Key words: Heterogenous nucleation, Synthesis in liquid phase, Nano crystalline rutile

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