Visible-Light-Driven Oxidative Coupling Reactions of Amines by Photoactive WS2 Nanosheets

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• 作者：Faizan Raza ; Jung Hyun Park ; Hye-Rim Lee ; Hye-In Kim ; Su-Ji Jeon ; Jong-Ho Kim
• 刊名：ACS Catalysis
• 出版年：2016
• 出版时间：May 6, 2016
• 年：2016
• 卷：6
• 期：5
• 页码：2754-2759
• 全文大小：458K
• 年卷期：0
• ISSN：2155-5435

文摘

Visible-light-driven photocatalysis has been emerging as an efficient and sustainable approach for chemical transformation in organic reactions, in which photostable and cost-effective photosensitizers are required to trigger and promote it. Monolayer WS<sub>2sub> nanosheets smaller than 120 nm were prepared by means of a modified liquid exfoliation method, and they showed strong photoluminescence in the visible range of the electromagnetic spectrum from 450 to 650 nm. These photoactive WS<sub>2sub> nanosheets were exploited as photocatalysts in the oxidative coupling reactions of various amines under visible-light irradiation. They showed excellent photocatalytic activity and reusability without the loss of their catalytic activity in the visible-light-driven oxidative coupling reactions of various amines. In addition, the mechanism responsible for WS<sub>2sub> nanosheet catalyzed imine production under visible-light irradiation was fully investigated.