Preparation of Doped Nanocrystalline TiO2 and Microstructural Control by Stearic Acid Sol-Gel Method

Abstract

Abstract: Nanocrystalline TiO₂powders doped with Na⁺ and K⁺ were prepared by stearic acid sol-gel method. The resulting nanocrystallines were characterized by FTIR, XRD and TEM. The reaction mechanism was also studied. The experimental results showed that rutile TiO₂can be obtained at 500℃ by using stearic acid sol-gel method, while anatase TiO₂ were obtained from doping with Na⁺ and K⁺. As a result of doping, the crystalline size decreased with increasing the amount of dopants.

Key words: stearic acid sol-gel method, titania, doping, microstructure

CLC Number:

TB383

YANG Juan,LI Dan,WU Dong-Hui,YANG Xu-Jie,LU Lu-De,WANG Xin. Preparation of Doped Nanocrystalline TiO₂ and Microstructural Control by Stearic Acid Sol-Gel Method[J]. Journal of Inorganic Materials.

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Preparation of Doped Nanocrystalline TiO₂ and Microstructural Control by Stearic Acid Sol-Gel Method

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