无机材料学报

• 研究论文 • 上一篇    

纳米TiO2粉体颗粒的表面特征与团聚状态

宋哲; 高濂; 李强   

  1. 中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室;上海 200050
  • 收稿日期:1996-07-10 修回日期:1996-08-09 出版日期:1997-06-20 网络出版日期:1997-06-20

Study on the Surface Status and Agglomeration of TiO2 Nano-Powder

SONG Zhe; GAO Lian; LI Qiang   

  1. State Key Lab of High Performance Ceramics and Saperfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China
  • Received:1996-07-10 Revised:1996-08-09 Published:1997-06-20 Online:1997-06-20

摘要: 本文以Ti(OC4H94为原料,改进了常规的水解沉淀工艺,在氯化按和氨水缓冲溶液中水解沉淀,得到纳米TiO2,通过FT-IR、电位仪等手段,分析制备条件及后处理方法对纳米TiO2微粉表面状态的影响,并从理论上分析影响微粉颗粒团聚的原因,从而寻找粉末颗粒团聚度控制的最佳工艺.

关键词: 纳米TiO2, ξ电位, 团聚度, FT-IR

Abstract: The TiO2 nano-powder was prepared by the precipitation of Ti(OC4H9)4 in aqueous solution.By using FT-IR, as well as potential techniques, it was found that the preparing process and thepost-process affect the suffice status of TiO2 nancy powder. The factor to affect the agglomerationwas analyzied theoretically, so that the best process to control the agglomeration of nano powderswas found.

Key words: nano-TiO2, ξpotential, agglomeration, FT-IR