1. NiSe2/Cd0.5Zn0.5S as a type-II heterojunction photocatalyst for enhanced photocatalytic hydrogen evolution
- Author
-
Zhiwei Cheng, Xue Zhang, Puhui Deng, Yu Hou, and Linping Zhang
- Subjects
Materials science ,Renewable Energy, Sustainability and the Environment ,Energy Engineering and Power Technology ,Heterojunction ,Hydrogen production rate ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,0104 chemical sciences ,Fuel Technology ,Chemical engineering ,Photocatalysis ,Hydrogen evolution ,0210 nano-technology ,Visible spectrum - Abstract
A designed type-II heterojunction photocatalyst, NiSe2/Cd0.5Zn0.5S (NiSe2/CZS), was successfully synthesized and it exhibits outstanding photocatalytic hydrogen evolution performance. The optimal loading amount of NiSe2 on Cd0.5Zn0.5S is 13 wt %, and the corresponding hydrogen production rate is approximately 121.01 mmol g−1 h−1 under visible light. The heterojunction structure between Cd0.5Zn0.5S and NiSe2 promoted the separation of photogenerated electron-hole pairs, effectively suppressed the photogenerated carrier recombination and endowed the material with excellent interfacial charge transfer properties, thus improving the photocatalytic performance.
- Published
- 2021