期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 6, 期 1, 页码 696-706出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.7b03032
关键词
Photocatalytic hydrogen evolution; CdS; Bi2MoO6; Bi; Diethylenetriamine
资金
- National Natural Science Foundation of China [51572103, 51502106]
- Foundation for Young Talents in College of Anhui Province [gxyqZD2017051]
- Key Foundation of Educational Commission of Anhui Province [KJ2016SD53]
- Innovation Team of Design and Application of Advanced Energetic Materials
Recently, CdS has been intensively investigated for its excellent photocatalytic hydrogen (H-2) evolution property. However, the poor stability and serious photocorrosion severely influence its potential for practical application. In this work, we successfully synthesized Bi surface plasmon resonance (SPR)-promoted Z-scheme Bi2MoO6 nanosheet/CdS-diethylenetriamine (Bi-Bi2MoO6/CdS-DETA) composites via an in situ solvothermal method. Crystalline structure, morphology, electrochemical properties, along with the photocatalytic H-2 evolution activity and stability, have been systematically investigated. The as-prepared Bi-Bi2MoO6/CdS-DETA composites with optimized structure exhibited advanced photocatalytic H-2 evolution activity (reach to 7.37 mmol h(-1) g(-1)) and high stability. Largely exposed active sites, effective Z-scheme charge separation and Bi metal SPR effect of the two-dimension (2D) heterostructure is contributed to improve H-2 generation performance of Bi-Bi2MoO6/CdS-DETA composites. This work provides an effective way to develop solar energy utilization of CdS-based photocatalysts and guarantees a promising future for design and growth of visible light response and sustainable photocatalytic materials by taking both properties and architectural features into consideration.
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