Study on preparation and formation mechanism of  nanophase TiO2 with different morphologies and  crystalline-structures from TiOCl2 solution

Acta Chimica Sinica ›› 2001, Vol. 59 ›› Issue (9): 1424-1429. Previous Articles Next Articles

Original Articles

TiOCl2溶液合成异形TiO2纳米粉及形成机理研究

魏雨;张艳峰;韩梅娟;贾振斌

河北师范大学化学系.石家庄(050016)

发布日期:2001-09-15

Study on preparation and formation mechanism of nanophase TiO2 with different morphologies and crystalline-structures from TiOCl2 solution

Wei Yu;Zhang Yanfeng;Han Meijuan;Jia Zhenbin

Hebei Teachers Univ, Dept Chem.Shijiazhuang(050016)

Published:2001-09-15

Abstract

Nanocrystal TiO2 was prepared from the precursor TiOCl2 at temperatures ranging from room temperature to 180 ℃. The morphologies of precipitated particles were needle-shaped agglomerates (rutile), sphere -shaped (mixed crystad), or needle- shaped single crystals(rutile) when the reaction temperature was lower than 70℃, 100℃ and 160℃ respectively. The crystal morphology and particle uniformity were intensely dependent on the reaction conditions such as temperature, rate of nucleation and growth. The mechanism of TiO2 formation at various temperatures is discussed in detail.

Key words: TITANIUM DIOXIDE, NANOPHASE MATERIALS, RUTILE, HYDROLYSIS

CLC Number:

O612

Cite this article

Wei Yu;Zhang Yanfeng;Han Meijuan;Jia Zhenbin. Study on preparation and formation mechanism of nanophase TiO2 with different morphologies and crystalline-structures from TiOCl2 solution[J]. Acta Chimica Sinica, 2001, 59(9): 1424-1429.

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TiOCl2溶液合成异形TiO2纳米粉及形成机理研究

Study on preparation and formation mechanism of nanophase TiO2 with different morphologies and crystalline-structures from TiOCl2 solution

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