Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 7, Issue 22, Pages 13629-13634Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ta02780g
Keywords
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Funding
- Australian Research Council (ARC) [DP160102627, DP170101467, FT180100585, LE100100081, LE110100099, LE120100104]
- National Natural Science Foundation (NSF) of China [51272015, 51472016, 51672018]
- Fundamental Research Funds for the Central Universities [YWF-16-JCTD-B-03, YWF-16-BJ-J-44]
- Australian Research Council [LE100100081, LE110100099] Funding Source: Australian Research Council
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Heterostructures, which can possess advantages of materials with different properties, have attracted enormous attention in various research fields including solar cells, photocatalysts, and optical electronic devices. In this work, a 2D/3D atomic epitaxial heterostructure with ultrathin BiOCl nanosheets and YF3:Yb, Tm octahedral crystals was fabricated via the halogen atom exchange method in the solution phase. The epitaxial heterointerface can facilitate energy transfer between BiOCl and YF3:Yb, Tm and suppress the energy quenching induced by grain boundaries. By carrying out single-particle confocal characterization, the energy upconverted by YF3:Yb, Tm is quantitatively confirmed to be transferred to ultrathin BiOCl nanosheets. As a result, YF3:Yb, Tm@BiOCl displays outstanding NIR-driven water splitting and waste-water cleaning properties. This study paves the way to fabricate 2D/3D epitaxial heterostructures, which helps to broaden the application of typical 2D materials.
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