Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 772, Issue -, Pages 669-674Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.09.145
Keywords
FeSe nanorods; CdS nanoparticles; Co-catalyst; Hydrogen evolution
Categories
Funding
- National Natural Science Foundation of China [51572183]
- Natural Science Foundation of Zhejiang Province, China [LY15E010002]
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Exploiting effective photocatalytic materials especially co-catalysts is an effective solution to enhance solar hydrogen generation. In this work, we firstly introduce FeSe as highly efficient co-catalyst on the surface of CdS nanoparticles for photocatalytic H-2 evolution under visible light irradiation. The optimized 2 wt%FeSe/CdS composite showed the highest photocatalytic H-2 evolution activity of 204.4 mu L/h with an apparent quantum efficiency of 6.71% at 420 nm, which is about 7 times higher than that of pure CdS nanoparticles. More importantly, 2 wt% FeSe/CdS composite also exhibits higher photocatalytic activity than that of 2 wt% Pt/CdS composite under the same condition. The higher photocatalytic H-2 evolution property of FeSe/CdS composite is due to that the photo-generated electrons can be driven by the build-in field and transferred to the surface of FeSe causing electron-hole separation. This work may provide the potential applications of FeSe as a co-catalyst for photocatalytic H-2 evolution. (C) 2018 Elsevier B.V. All rights reserved.
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