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无机材料学报

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偏钛酸作前驱体水热合成TiO2微粉

陈代荣; 孟祥建; 李博; 孙思修   

  1. 山东大学化学系; 济南250100
  • 收稿日期:1996-01-03 修回日期:1996-02-08 出版日期:1997-02-20 网络出版日期:1997-02-20

TiO2 Particles Derived from H3TiO3 with Hydrothermal Method

CHEN Dairong; MENG Xiangjian; LI Bo; SUN Sixiu   

  1. Dept. of Chem.; Shandong Univ. Jinan 250100 China
  • Received:1996-01-03 Revised:1996-02-08 Published:1997-02-20 Online:1997-02-20

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摘要： 考察了偏钛酸作前驱体水热合成TiO2微粉过程中偏钛酸、正钛酸及水溶液中阴、阳离子，如PO3-4、Ac-、Zn2+、NH+4够等与TiO2物相的关系，并探讨了阴、阳离子对TiO2颗粒形貌的影响.结果表明，TiO2物相与前驱体偏钛酸的微结构有关，HN+4、Zn2+、正钛酸及小的、低价阴离子能促进金红石物相的形成，而大的、高价阴离子则利于锐钛矿物相的形成，且影响TiO2颗粒的生长.

关键词: 偏钛酸, 水热法, TiO2微粉

Abstract: The preparation of TiO2 particles from H3TiO3 by using hydrothermal method was reported. The effects of H3TiO3, H4TiO4 and ions, for example: PO-4, Ac-, Zn2+, NH+4 and so on were studied. The results indicated that the phases and partical morphology of TiO2 were intimate relative to the structure of H3TiO3, PO-4 and other high valence or big anions could accelerate anatase formation of TiO2 and Zn2+, NH+4 or H4TiO4 were the promoter of rutile phase.

Key words: H3TiO3, hydrothermal method, TiO2 particles