Preparation of Brookite TiO2Micro-crystals with Single Phase

Abstract

Abstract: Fresh precipitates of amorphous TiO₂were used as the precursor to prepare brookite phase titania powders by hydrothermal method.The powders were characterized by XRD, Raman and TEM.All the results showed that the synthesized titania powders contained only brookite with a high purity of phase and uniform crystal size.The transformation from brookite to rutile occured when the powders were calcined at 900 ℃ and was completed at 1000 ℃.

Key words: Brookite, Hydrothermal condition, Single phase, Phase transformation

CLC Number:

O614

TrendMD:

YANG Shao-Feng, LUO Wei, ZHU Yan-Chao, LIU Yan-Hua, ZHAO Jing-Zhe, WANG Zi-Chen, ZOU Guang-Tian . Preparation of Brookite TiO₂Micro-crystals with Single Phase[J]. Chem. J. Chinese Universities, 2003, 24(11): 1933.

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Preparation of Brookite TiO₂Micro-crystals with Single Phase

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