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Title: 2D PtS nanorectangles/g-C₃N₄ nanosheets with a metal sulfide-support interaction effect for high-efficiency photocatalytic H₂ evolution
Authors: Lin, Bo
Zhou, Yao
Xu, Baorong
Zhu, Chao
Tang, Wu
Niu, Yingchun
Di, Jun
Song, Pin
Zhou, Jiadong
Luo, Xiao
Kang, Lixing
Duan, Ruihuan
Fu, Qundong
Liu, Haishi
Jin, Ronghua
Xue, Chao
Chen, Qiang
Yang, Guidong
Varga, Kalman
Xu, Quan
Li, Yonghui
Liu, Zheng
Liu, Fucai
Keywords: Engineering::Materials
Issue Date: 2021
Source: Lin, B., Zhou, Y., Xu, B., Zhu, C., Tang, W., Niu, Y., Di, J., Song, P., Zhou, J., Luo, X., Kang, L., Duan, R., Fu, Q., Liu, H., Jin, R., Xue, C., Chen, Q., Yang, G., Varga, K., ...Liu, F. (2021). 2D PtS nanorectangles/g-C₃N₄ nanosheets with a metal sulfide-support interaction effect for high-efficiency photocatalytic H₂ evolution. Materials Horizons, 8(2), 612-618.
Project: RG4/17
Journal: Materials Horizons 
Abstract: Cocatalyst design is a key approach to acquire high solar-energy conversion efficiency for photocatalytic hydrogen evolution. Here a new in situ vapor-phase (ISVP) growth method is developed to construct the cocatalyst of 2D PtS nanorectangles (a length of ∼7 nm, a width of ∼5 nm) on the surface of g-C3N4 nanosheets. The 2D PtS nanorectangles/g-C3N4 nanosheets (PtS/CN) show an unusual metal sulfide-support interaction (MSSI), which is evidenced by atomic resolution HAADF-STEM, synchrotron-based GIXRD, XPS and DFT calculations. The effect of MSSI contributes to the optimization of geometrical structure and energy-band structure, acceleration of charge transfer, and reduction of hydrogen adsorption free energy of PtS/CN, thus yielding excellent stability and an ultrahigh photocatalytic H2 evolution rate of 1072.6 μmol h-1 (an apparent quantum efficiency of 45.7% at 420 nm), up to 13.3 and 1532.3 times by contrast with that of Pt nanoparticles/g-C3N4 nanosheets and g-C3N4 nanosheets, respectively. This work will provide a new platform for designing high-efficiency photocatalysts for sunlight-driven hydrogen generation.
ISSN: 2051-6355
DOI: 10.1039/d0mh01693d
Schools: School of Materials Science and Engineering 
School of Physical and Mathematical Sciences 
Rights: © 2021 The Royal Society of Chemistry. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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