期刊
CHEMISTRYSELECT
卷 6, 期 10, 页码 2561-2568出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.202004735
关键词
CdS; MoS2; hydrogen evolution; Charge separation
资金
- Shandong Provincial Natural Science Foundation [ZR2018LF012]
- Foundation of State Key Laboratory of Biobased Material [ZZ20190208]
- Colleges and Universities Twenty Terms Foundation of Jinan City [2019GXRC036]
The CdS/MoS2 heterostructures synthesized by solid-gas reaction and hydrothermal treatments demonstrated high efficiency in photocatalytic H-2 evolution, with close contacts between CdS nanoparticles and MoS2 nanoribbons facilitating the separation and transfer of photogenerated charge carriers.
The construction of the heterostructures with intimate contacts and prominent sunlight absorption capacity are essential for achieving the highly effective photocatalytic H-2 evolution. Here, the CdS/MoS2 heterostructures constituted by CdS nanoparticals loaded on uniform MoS2 nanoribbons were synthesized through solid-gas reaction and hydrothermal treatments. In the as-prepared CdS/MoS2 heterostructures, there are large-area contact interfaces between the external highly dispersed small CdS nanoparticals and MoS2 nanoribbons. Impressively, the optimized CdS/MoS2-8 photocatalyst delivered the highest hydrogen production rate of 91.2 mu mol h(-1), which is 9 times that of CdS. It demonstrates that the formation of the heterostructures could effectively promote the separation and transfer of photogenerated charge carriers due to the intimate contacts between CdS nanoparticals and MoS2 nanoribbons. This work would provide a new method to develop efficient photocatalysts for photocatalytic H-2 evolution.
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