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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

晶体生长用TiO2纳米晶的改良工艺研究

卢铁城1; 宋萍1; 林理彬1; 卢勇1; 祖小涛1; 廖志君2   

  1. 1. 四川大学物理系辐射物理及技术教育部重点实验室, 成都 610064; 2. 四川大学物理系, 成都 610064
  • 收稿日期:2000-06-26 修回日期:2000-07-17 出版日期:2001-05-20 网络出版日期:2001-05-20

Investigation on Technological Process of Preparation of TiO2 Nanocrystal for Rutile Crystal Growth

LU Tie-Cheng1; SONG Ping1; LIN Li-Bin1; LU Yong1; ZU Xiao-Tao1; LIAO Zhi-Jun2   

  1. 1. Dept. of Phys.; Key Lab. for Rad. Phys. and Technol. of Education Ministry; Sichuan University; Chengdu 610064; China; 2. Department of Applied Physics; Sichuan University, Chengdu 610064, China
  • Received:2000-06-26 Revised:2000-07-17 Published:2001-05-20 Online:2001-05-20

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摘要： 针对晶体生长的具体应用，分别以硫酸氧钛铵（ＡＴＳ）和改良硫酸氧钛铵（Ｍ－ＡＴＳ）为原料，采用高温焙烧法制备了ＴｉＯ２纳米晶，用ＸＲＤ分析了原料和纳米晶的物相，用ＳＥＭ分析了纳米晶的形貌．结果表明虽然两种原料具有相似的物相结构，但所得纳米晶的性状不同，Ｍ－ＡＴＳ焙烧所得纳米晶分散性更高，均匀性更好．此外，研究了焙烧温度、保温时间、急烧、缓烧等工艺条件对纳米晶形貌、物相的影响，并给出了批量制备ＴｉＯ２纳米晶粉体的最佳工艺条件．

关键词: TiO2纳米晶, 分散性, SEM, XRD

Abstract: TiO2 nanocrystal was produced by calcining at high temperature using TiOSO4·(NH4)2SO4·H2O
(ATS) and modified ATS, respectively, as raw material for synthetic rutile crystal growth. The phases of raw material and nanocrystal were measured by means of XRD and the appearance of nanocrystal was analyzed
by means of SEM. As a result, it is shown that there are great difference between two kinds of nanocrystal as for shape and properties, especially TiO2 nanocrystal calcined from modified ATS is much more
dispersive and homogeneous than that from ATS，although the raw materials of them have similar structure. The influence of the calcination temperature, the heating period, as well as rapid heating or slow heating etc,
on the phase and appearance of the nanocrystal was also investigated. Moreover, the good technological process to produce a great quantity of TiO2 nanocrystal was presented.

Key words: TiO2 nanocrystal, dispersion, XRD, SEM

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