期刊
CATALYSTS
卷 12, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/catal12121668
关键词
photocatalysts; WSe2 nanosheets; TiO2; nanocomposites; hydrogen
资金
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- China Fundamental Research Funds for the Central Universities
- [52106259]
- [2021M692005]
- [GK202103110]
A series of WSe2/TiO2 nanocomposites were constructed through a mechanical grinding method, and all of them exhibited boosted photocatalytic hydrogen evolution. The enhanced performance was attributed to efficient electron transfer and abundant active sites provided by WSe2 nanosheets. The intimate heterojunction between WSe2 nanosheets and TiO2 favored charge separation.
Design and fabrication of efficient and stable photocatalysts are critically required for practical applications of solar water splitting. Herein, a series of WSe2/TiO2 nanocomposites were constructed through a facile mechanical grinding method, and all of the nanocomposites exhibited boosted photocatalytic hydrogen evolution. It was discovered that the enhanced photocatalytic performance was attributed to the efficient electron transfer from TiO2 to WSe2 and the abundant active sites provided by WSe2 nanosheets. Moreover, the intimate heterojunction between WSe2 nanosheets and TiO2 favors the interfacial charge separation. As a result, a highest hydrogen evolution rate of 2.28 mmol/g center dot h, 114 times higher than pristine TiO2, was obtained when the weight ratio of WSe2/(WSe2 + TiO2) was adjusted to be 20%. The designed WSe2/TiO2 heterojunctions can be regarded as a promising photocatalysts for high-throughput hydrogen production.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据