Journal
APPLIED SURFACE SCIENCE
Volume 514, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2020.146096
Keywords
Core-shell; Hexagonal boron nitride; Cobalt nanoparticles; Hydrogen production
Categories
Funding
- National Natural Science Foundation of China [U1662112, 21273038, 21543002, 11305091]
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The Co@BN core-shell nanostructure of Co core and boron nitride (BN) shell was prepared through a facile onestep thermal treatment. The as-prepared Co@BN nanocomposites exhibited excellent dye-sensitized photocatalytic hydrogen evolution activity (13.78 mmol h(-1) g(-1)) with visible light and the apparent quantum yield was 1.15%. The enhanced adsorption of EY on the BN shell and the Co/BN Schottky junction facilitate the tandem transfer of photo-generated carriers to the Co surface. Moreover, the core-shell interface serves as a nanoreactor boosting the reduction of H+ to H-2 on the Co surface. Additionally, the magnetic recyclability makes Co@BN favorable for its practical application. This work extends the application of the photocatalysis under shell and has potential in dye-sensitized solar cell.
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