Journal
NANOMATERIALS
Volume 8, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/nano8100835
Keywords
photocatalysis; H-2 evolution; red P; ZnO; heterostructure
Categories
Funding
- National Natural Science Foundation of China [51502178]
- Major Science and Technology Project of Guangdong Province [2014B010131006]
- Shenzhen Science and Technology Project [JCYJ20170412105400428, KQJSCX20170727101208249]
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Photocatalysis is a green technique that can convert solar energy to chemical energy, especially in H-2 production from water splitting. In this study, ZnO and red phosphorus (ZnO/RP) heterostructures were fabricated through a facile calcination method for the first time, which showed the considerable photocatalytic activity of H-2 evolution. The photocatalytic activities of heterostructures with different ratios of RP have been investigated in detail. Compared to bare ZnO, ZnO/RP heterostructures exhibit a 20.8-fold enhancement for H-2 production and furthermore overcome the photocorrosion issue of ZnO. The improved photocatalytic activities highly depend on the synergistic effect of the high migration efficiency of photo-induced electron-hole pairs with the inhibited charge carrier recombination on the surface. The presented strategy can also be applied to other semiconductors for various optoelectronics applications.
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