Journal
ADVANCED MATERIALS
Volume 29, Issue 17, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201605776
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Funding
- National Natural Science Foundation of China [21132007, 51672262, 21271166, 21371164, 51572254]
- Fundamental Research Funds for the Central Universities [WK3430000001, WK3430000002, WK3430000003]
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Metal-free elemental photocatalysts for hydrogen (H-2) evolution are more advantageous than the traditional metal-based inorganic photocatalysts since the nonmetal elements are generally cheaper, more earth-abundant, and environmentally friendly. Black phosphorus (BP) has been attracting increasing attention in recent years based on its anisotropic 2D layered structure with tunable bandgap in the range of 0.3-2.0 eV; however, the application of BP for photocatalytic H-2 evolution has been scarcely reported experimentally although being theoretically predicted. Herein, for the first time, the visible light photocatalytic H-2 evolution of BP nanosheets prepared via a facile solid-state mechanochemical method by ball-milling bulk BP is reported. Without using any noble metal cocatalyst, the visible light photocatalytic hydrogen evolution rate of BP nanosheets reaches 512 mu mol h(-1) g(-1), which is approximate to 18 times higher than that of the bulk BP, and is comparable or even higher than that of graphitic carbon nitrides (g-C3N4).
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