期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 5, 期 38, 页码 20136-20140出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta06341e
关键词
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资金
- Beijing Building Materials Academy of Science Research (BBMA)
- National Natural Science Foundation of China [21503013]
An efficient catalytic system and surface modification are considered as two important routes for the enhancement of MOF-based photocatalytic properties. Herein, we report a significant improvement in hydrogen production efficiency with MOFs achieved through both the abovementioned routes. With the newly developed highly efficient TEOA-ErB system, H-2 generation rate on UiO-66-NH2 octahedrons could amount to 21.2 mmol h(-1) g(-1). Then, based on this system, the interaction of the UiO-66-NH2 surface with graphene was judiciously controlled. The prepared graphene well-wrapped UiO-66-NH2 octahedrons, in which every face was in contact with graphene, led to the highest H-2 production efficiency of 41.4 mmol h(-1) g(-1). These findings suggest that MOFs could potentially evolve into highly efficient photocatalysts when incorporated into a proper system and further revealed that modifications on the surface of MOFs might result in a better inhibition of electron-hole recombination in H-2 generation.
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