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

Authors

Li Wang, University of Wollongong, Monash UniversityFollow
Dandan Cui, Beihang University
Long Ren, University of WollongongFollow
Jiajia Zhou, University of Technology Sydney
Fan Wang, University of Technology Sydney
Gilberto Casillas, University of WollongongFollow
Xun Xu, University of Wollongong, Beihang UniversityFollow
Germanas Peleckis, University of WollongongFollow
Weichang Hao, Beihang UniversityFollow
Jinhua Ye, National Institute Of Materials ScienceFollow
Shi Xue Dou, University of WollongongFollow
Dayong Jin, University of Technology SydneyFollow
Yi Du, University of Wollongong, Beihang UniversityFollow

RIS ID

136381

Publication Details

Wang, L., Cui, D., Ren, L., Zhou, J., Wang, F., Casillas, G., Xu, X., Peleckis, G., Hao, W., Ye, J., Dou, S. Xue., Jin, D. & Du, Y. (2019). Boosting NIR-driven photocatalytic water splitting by constructing 2D/3D epitaxial heterostructures. Journal of Materials Chemistry A, 7 (22), 13629-13634.

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.

Grant Number

ARC/FT180100585, ARC/LE120100104, ARC/DP160102627

Grant Number

ARC/ LE100100081, ARC/DP170101467, ARC/LE110100099

Additional Grant Number

http://purl.org/au-research/grants/ARC/FT180100585, http://purl.org/au-research/grants/ARC/DP170101467 http://purl.org/au-research/grants/ARC/LE110100099, http://purl.org/au-research/grants/ARC/LE100100081 http://purl.org/au-research/grants/ARC/DP160102627, http://purl.org/au-research/grants/ARC/LE110100099