Journal
DALTON TRANSACTIONS
Volume 49, Issue 26, Pages 8891-8900Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0dt01290d
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Funding
- Natural Science Foundation of China [51978342]
- Open Fund of Key Laboratory of Jiangxi Province [ES201980195]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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A novel ternary MoSx-CdS-NaNbO3(MoSx-CN) photocatalyst was successfully fabricated through a two-step method (hydrothermal synthesis and photo-deposition step). The results demonstrated that CdS nanoparticles and amorphous MoS(x)uniformly dispersed on one-dimensional (1D) NaNbO(3)nanowires, thus forming multi-junctions (CdS-NaNbO3, CdS-MoS(x)and NaNbO3-MoSx) that could increase the migration efficiency of photo-excited charge carriers. In addition, an abundance of unsaturated sulfur atoms in MoS(x)led to a strong attraction to H+, thus providing active sites for water splitting. Consequently, the optimized composite sample (MoSx-CN-100) exhibited a hydrogen (H-2) evolution efficiency of 2.386 mmol g(-1)h(-1), which was about 125.58 and 11.93 times that of NaNbO(3)and CdS, respectively. Moreover, the ternary photocatalyst also exhibited excellent stability in the long-term hydrogen production process compared with the binary and single samples. Our work provided new insight into the rational design of multi-heterojunction photocatalysts with high efficiency for H(2)evolution under visible light irradiation.
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