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Study on the Dispersion of Nanometer TiO2 Powder by Sol-Gel Method

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Abstract:

This study investigated the effect of cationic, anionic, and nonionic surfactants on the formation, morphology, and surface properties of TiO2 nanoparticles synthesized by modified sol-gel method. The crystalline structures and morphologies of the powder have been characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The XRD results showed TiO2 nanoparticles synthesized with different surfactants only include anatase phase. The TEM analysis revealed the surfactants can enhance dispersion of TiO2 nanoparticles. In contrast, the anionic surfactants showed hightly effects. The photocatalytic activity of samples was tested for degradation of methyl orange (MO) solutions. The results showed photocatalytic activity of the catalyst with surfactants was higher than pure TiO2 under ultraviolet.

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Periodical:

Advanced Materials Research (Volume 599)

Pages:

104-107

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.599.104

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Online since:

November 2012

Authors:

Fang Zhao, Ya Qiong Zhao, Yuan Yuan Li, Gang Ni

Keywords:

Degradation Pollutiontant, Nanometer TiO2, Sol-Gel Processes, Surfactant

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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