Effect of Reactor Materials on the Properties of Titanium Oxide Nanotubes

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• 作者：Alon Danon ; Kaustava Bhattacharyya ; Baiju K. Vijayan ; Junling Lu ; Dana J. Sauter ; Kimberly A. Gray ; Peter C. Stair ; Eric Weitz
• 刊名：ACS Catalysis
• 出版年：2012
• 出版时间：January 1, 2012
• 年：2012
• 卷：2
• 期：1
• 页码：45-49
• 全文大小：815K
• 年卷期：v.2,no.1(January 1, 2012)
• ISSN：2155-5435

文摘

Subtleties in the synthesis of materials can have a profound effect on the catalytic and photocatalytic properties of materials. Black TiO₂ nanotubes, demonstrating remarkable solar absorption, were synthesized using a stainless steel reactor. Using UV鈥搗is diffuse reflectance spectroscopy, XPS, EDS, ICP, and TEM, the change in electronic absorption of the TiO₂ nanotubes is explained by the discrete introduction of Cr concentrated particles from the stainless steel reactor. The black TiO₂ nanotubes displayed significant solar-driven photocatalytic activity with the photo-oxidation of acetaldehyde under visible light (位 > 450 nm).

Keywords:

titanium oxide; titantia; nanotubes; photocatalysis; chromium