Journal
CATALYSIS TODAY
Volume 330, Issue -, Pages 203-208Publisher
ELSEVIER
DOI: 10.1016/j.cattod.2018.03.060
Keywords
H-2; Copper sulfide; Cadmium sulfide; Visible-light-driven photocatalysis; Charge separation
Funding
- National Natural Science Foundation of China [U1662138, 21503062]
- Fundamental Research Funds for the Central Universities [PA2017GDQT0019]
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Noble-metal-free photocatalysts are promising for converting the sustainable solar energy into chemical energies, such as H-2. Herein, we combined CuS nanoparticles with CdS nanoparticles to form a noble-metal-free CuS/CdS. CuS/CdS shows a high ability in separating the photogenerated electron-hole pairs. In the visible-light-driven photocatalytic H2O splitting, an H-2 evolution rate of 561.7 mu mol h(-1) is achieved on CuS/CdS. This is about two times higher than that on the noble-metal-based Pt/CdS photocatalyst (263.8 mu mol h(-1)). Therefore, CuS is an excellent alternative to the noble metals for photocatalysis. These findings are helpful for fabricating efficient noble-metal-free photocatalysts.
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