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Preparation of Nano-TiO2 Using a Sol-Gel Process Mediated in Reverse Microemulsion Combined with a Solvent Thermal Technique

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Abstract:

Anatase nano-titania (nano-TiO2) was prepared by using a sol-gel process mediated in reverse microemulsion combined with a solvent thermal technique. The results show that the anatase structure appears in the calcination temperature range of 400-510°C, while the transformation of anatase into rutile takes place above 510°C. The average particle size (dP) of the nano-TiO2 increases with the rise of water/Triton X-100 molar ratio (ω) but decreases with the rise of acetyl acetone/n-TBT molar ratio (p) and n-hexanol/Triton X-100 molar ratio (m). The obtained TiO2 particles with a small size have high photocatalytic activity.

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Periodical:

Advanced Materials Research (Volumes 287-290)

Pages:

1731-1734

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.287-290.1731

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Online since:

July 2011

Authors:

Han Sheng Li, Hang Xu, Shi Ying Wang, Ya Lin Pan, Qin Wu, Chang Hao Liu

Keywords:

Microemulsion, Nanoparticle, Photocatalytic, Sol-Gel (SG), Solvent-Thermal Technique, Titania

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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