期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 44, 页码 38066-38072出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b13371
关键词
overall water splitting; (111)-oriented Au nanoparticles; carbon nitride nanosheets; charge separation; photocatalysis
资金
- National Key R&D Program of China [2016YFA0200200, 2017YFB1104300]
- NSFC [21773007, 51673026, 21674056, 21575014]
- Beijing Natural Science Foundation [2152028, 2184122]
- Beijing Municipal Science and Technology Commission [Z161100002116022]
- 111 Project [807012]
- Fundamental Research Funds for the Central Universities [2018CX01017]
- Beijing Institute of Technology Research Fund Program for Young Scholars
- Beijing Institute of Technology Research Fund Program for Young Scholars, the project of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology) [YBKT18-03]
Development of a simple and stable photocatalyst for overall water splitting is a promising avenue for solar energy conversion. Here, carbon nitride (CN) nanosheet panels decorated with in situ-formed (111) facets oriented Au nanoparticles (AuNPs) have been prepared by vapor-deposition polymerization followed by an easy immersion technique. Benefiting from the enhanced visible light absorption, the surface plasmon resonance effect of AuNPs, rapid transportation and separation of charge carriers, as well as better aligned valence band levels, the as-obtained photocatalyst shows effective overall water splitting with stoichiometric H-2 and O-2 evolution even without any sacrificial agent, distinct from the half-reaction of Pt-decorated CN. This work opens up a brand-new route for facet self-selective growth of metal on two-dimensional conjugated carbon nitride materials, which has been demonstrated to be effective for artificial photosynthesis applications.
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