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Issue 22, 2019
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Boosting NIR-driven photocatalytic water splitting by constructing 2D/3D epitaxial heterostructures

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Abstract

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.

Graphical abstract: Boosting NIR-driven photocatalytic water splitting by constructing 2D/3D epitaxial heterostructures

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Publication details

The article was received on 14 Mar 2019, accepted on 05 May 2019 and first published on 06 May 2019


Article type: Paper
DOI: 10.1039/C9TA02780G
J. Mater. Chem. A, 2019,7, 13629-13634

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    Boosting NIR-driven photocatalytic water splitting by constructing 2D/3D epitaxial heterostructures

    L. Wang, D. Cui, L. Ren, J. Zhou, F. Wang, G. Casillas, X. Xu, G. Peleckis, W. Hao, J. Ye, S. X. Dou, D. Jin and Y. Du, J. Mater. Chem. A, 2019, 7, 13629
    DOI: 10.1039/C9TA02780G

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