Synthesis of anatase TiO2 nanoparticles by improved sol-gel process at low temperature

被引：0

作者：

Wang, YL ^{[1
]}

Du, HY ^{[1
]}

Han, J ^{[1
]}

Cui, L ^{[1
]}

机构：

[1] Tianjin Univ, Dept Mat Sci & Engn, Tianjin 300072, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2005年 / 23卷

关键词：

improved sol-gel process; titanium dioxide; nanocrystalline; low temperature;

D O I：

暂无

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The nanocrystalline TiO2 powder were prepared by improved sol-gel method at low temperature under ambient pressure. The prepared TiO2 powder was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM). It is found that the yield of anatase TiO2 significantly increases with the reduction of pH by increasing the nucleation rate of anatase. There is an optimum amount of water in sol for the formation of anatase by combining two effects on the concentration of Ti(OH)(4) in gels. Increasing in reaction temperature also benefit to the nucleation of anatase of TiO2.

引用

页码：306 / 308

页数：3

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