期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 224, 期 -, 页码 17-26出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2017.10.010
关键词
Photocatalytic; H-2; Zn0.75Cd0.25S; NixCo1-x; Hybrid
资金
- National Natural Science Foundation of China [20841003, 21261130584, 21390394, 91022030, 20971052, 20741001]
- Chang Bai Mountain Scholars Program [440020031182]
- Graduate Innovation Fund of Jilin University
Construction of functional photocatalysts with ultrahigh photocatalytic hydrogen evolution using solar energy is still a serious challenge for scientific researchers. Here, recently, a facile chemical reduction method is developed to synthesize NixCo1-x/Zn0.75Cd0.25S nanohybrid photocatalysts, a kind of promising smart material with optimizing H-2 evolution rate being 0.21 mol h(-1) g(-1) under simulated solar light irradiation with an apparent quantum efficiency (AQE) of 13.3% at 365 nm, an ultrahigh H-2 evolution rate among almost all the semiconductor-based photocatalysts. More importantly, the NixCo1-x/Zn0.75Cd0.25S photocatalyst shows a sufficient stability property for > 20 h. The pronounced synergistic effect between non-noble-metals of Ni and Co boosts the transfer and separation of photo-generated electron-hole pairs, and a synergistic catalytic mechanism has been proposed and studied in detail.
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