Defective, Porous TiO2 Nanosheets with Pt Decoration as an Efficient Photocatalyst for Ethylene Oxidation Synthesized by a C3N4 Templating Method

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• 作者：Xiaoyang Pan ; Xuxing Chen ; Zhiguo Yi
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：April 27, 2016
• 年：2016
• 卷：8
• 期：16
• 页码：10104-10108
• 全文大小：340K
• 年卷期：0
• ISSN：1944-8252

文摘

We report herein a C<sub>3sub>N<sub>4sub> templating method for successfully synthesizing defective, porous TiO<sub>2sub> nanosheets with Pt decoration as an efficient photocatalyst for C<sub>2sub>H<sub>4sub> oxidation. During the synthetic procedure, C<sub>3sub>N<sub>4sub> not only acts as a 2D template to direct synthesize porous TiO<sub>2sub> nanosheets (TiO<sub>2sub>-NS) but also facilitates oxygen vacancy formation on TiO<sub>2sub>. The resultant TiO<sub>2sub>-NS shows enhanced UV and visible-light photoactivities toward C<sub>2sub>H<sub>4sub> oxidation as compared to blank TiO<sub>2sub> (TiO<sub>2sub>-B) prepared without C<sub>3sub>N<sub>4sub> template. Subsquently, Pt nanoparticles are homogeneously decorated onto the surface of TiO<sub>2sub>-NS. The as-obtained Pt-TiO<sub>2sub>-NS exhibits efficient photocatalytic activity and stability toward ethylene oxidation.