Journal
APL MATERIALS
Volume 7, Issue 10, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.5120528
Keywords
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Funding
- National Natural Science Foundation of China [21671030]
- Key Program of the National Natural Science Foundation of China [21531001]
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To boost the photocatalytic activity of NH2-UiO-66 toward CO2 under visible light, CdTe quantum dots and g-C3N4 nanocrystals were introduced to form NH2-UiO-66/g-C3N4/CdTe composites via a two-step synthetic strategy. g-C3N4 and CdTe in different visible light ranges possessed a strong absorption ability, and, thereby, greatly extended the range of photoresponsive wavelength of the composites. Mott-Schottky analysis revealed that the energy level of the conduction band of g-C3N4 and CdTe was higher than the LUMO level of NH2-UiO-66, benefiting for the photogenerated carriers separation and electron injection from g-C3N4 and CdTe to NH2-UiO-66, leading to a high concentrated Zr (III) formation. Finally, the NH2-UiO-66/g-C3N4/CdTe composites exhibited the superior photocatalytic performance for CO2 conversion in the acetonitrile/ethanol system upon visible light irradiation (>= 400 nm) with a HCOOH generation rate of 24.6 mu mol g(-1) h(-1) that was similar to 7.5 times higher than that of NH2-UiO-66 alone. (C) 2019 Author(s).
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