期刊
SUSTAINABLE ENERGY & FUELS
卷 4, 期 7, 页码 3467-3476出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0se00249f
关键词
-
资金
- National Science Foundation of China [21972110]
- Natural Science Foundation of Shaanxi Province, China [2019JM-154]
- State Key Laboratory of Electrical Insulation and Power Equipment, China [EIPE19123]
In this work, a new kind of CdS/CdSe/CuS hollow nanospheres (HNPs) is successfully synthesized by one-step synthesisviavulcanization and selenization in aqueous solution, without using any additional templates, for the first time. The three components of CdS, CdSe and CuS in the HNPs are thoroughly combinated with each other at nano-scale, which creates a large quantity of intimate contact interfaces. As a result, the optimal CdSe30Cu2S HNPs exhibit an excellent photocatalytic H(2)evolution rate of 723 mu mol h(-1)(10 mg of catalyst) without adding any noble metal co-catalysts, which is 6.5 times higher than that of the pristine CdS HNPs. The hollow structure enhances the light absorption and provides the inner surface as active sites for the infiltrated water to receive the inner-shell electrons quickly for H(2)evolution and the CdS/CdSe/CuS heterostructure with CuS acting as the co-catalyst forms three charge transfer pathways to promote the separation and migration of the photo-induced electrons and holes, resulting in the enhanced photocatalytic performance. This work may provide a strategy for the design and synthesis of other photocatalysts for highly efficient H(2)evolution.
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