MoS2-MoO3-x hybrid cocatalyst for effectively enhanced H2 production photoactivity of AgIn5S8 nano-octahedrons
| Autor: | Shuaishuai Song, Wenli Fu, Jinming Wang, Tianyou Peng, Ling Zan |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
High conductivity Process Chemistry and Technology Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis 0104 chemical sciences Chemical engineering Nano Photocatalysis Energy transformation Pt nanoparticles 0210 nano-technology General Environmental Science |
| Zdroj: | Applied Catalysis B: Environmental. 228:39-46 |
| ISSN: | 0926-3373 |
| DOI: | 10.1016/j.apcatb.2018.01.077 |
| Popis: | A new binary Mo-based cocatalyst consisting of partially reduced α-MoO3 (MoO3-x) nanoparticles and few-layer MoS2 nanosheets is deposited on AgIn5S8 nano-octahedrons (Octa-AIS) with only (111) facets exposed via an in situ growth process, in which the oxygen-deficient MoO3-x nanoparticles enable facile charge transport due to its high conductivity, while the few-layer MoS2 nanosheets provide more active sites and then excellent catalytic property for H2 evolution. The resultant MoS2-MoO3-x hybrid cocatalyst utilizes the best properties of each component while mitigating their deficiencies, and thus realizes an effective enhancement of visible-light-driven H2 evolution activity on Octa-AIS as compared with the single co-catalyst (such as MoS2, MoO3-x, and even Pt nanoparticles). This study not only presents a rare example of binary Mo-based cocatalyst consisting of MoS2 and MoO3-x components, but also paves a new way to develop an inexpensive photocatalytic system for energy conversion to achieve highly efficient H2 evolution without noble metal-loading. |
| Databáze: | OpenAIRE |
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