Synthesis of Amphiphilic Brookite Nanoparticles with High Photocatalytic Performance for Wide Range of Application

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• 作者：Ken-ichi Katsumata ; Yukiaki Ohno ; Koji Tomita ; Takaaki Taniguchi ; Nobuhiro Matsushita ; Kiyoshi Okada
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2012
• 出版时间：September 26, 2012
• 年：2012
• 卷：4
• 期：9
• 页码：4846-4852
• 全文大小：375K
• 年卷期：v.4,no.9(September 26, 2012)
• ISSN：1944-8252

文摘

Brookite TiO₂ nanoparticles with amphiphilic properties were successfully synthesized with a water-soluble titanium glycolate complex precursor using an oleate-modified hydrothermal growth process. The 20鈥?0 nm TiO₂ nanoparticles were highly dispersible in both water and cyclohexane. The activity of the brookite nanoparticles for the degradation of acetaldehyde under UV irradiation was higher than that of Degussa P-25 TiO₂ powder. A spin-coated brookite film prepared on a polyimide substrate exhibited photoinduced hydrophilicity. Thus, these synthesized brookite nanoparticles could be applied as a photocatalytic coating solution.

Keywords:

brookite; hydrothermal method; oleic acid; amphiphilicity; photocatalyst; photoinduced hydrophilicity