CdTe/CdS Core/Shell Quantum Dots Cocatalyzed by Sulfur Tolerant [Mo3S13]2– Nanoclusters for Efficient Visible-Light-Driven Hydrogen Evolution

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• 作者：Dongting Yue ; Xufang Qian ; Zichen Zhang ; Miao Kan ; Meng Ren ; Yixin Zhao
• 刊名：ACS Sustainable Chemistry & Engineering
• 出版年：2016
• 出版时间：December 5, 2016
• 年：2016
• 卷：4
• 期：12
• 页码：6653-6658
• 全文大小：386K
• ISSN：2168-0485

文摘

CdTe quantum dots (QDs) have an extended absorbance region compared to that of CdSe or CdS QDs for solar utilization; however, their low activities, especially the chemical stability, limit their applications in photocatalytic hydrogen evolution. We report on enhanced visible-light-driven hydrogen evolution based on CdTe QDs via forming CdTe/CdS core/shell and using sulfur tolerant catalysts of the [Mo₃S₁₃]^2– nanocluster. The aqueous synthesized CdTe/CdS QDs exhibit much better photocorrosion resistance than regular CdTe QDs for photocatalytic hydrogen generation. The sulfur compound covered CdTe/CdS QDs are facilely decorated with the low cost sulfur tolerant [Mo₃S₁₃]^2– nanoclusters to exhibit enhanced visible-light photocatalytic H₂ generation than the CdTe QDs catalyzed with classical cocatalysts of Pt. In all, the combination of sulfur tolerant [Mo₃S₁₃]^2– nanoclusters and CdTe/CdS core/shell structure significantly enhance the activity and stability of CdTe QDs for visible-light photocatalytic hydrogen evolution.