期刊
APPLIED SURFACE SCIENCE
卷 527, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2020.146653
关键词
Mesoporous g-C3N4 nanosheet; Photocatalysis; Urchin-like Bi2S3 sphere; ZnS quantum dot; Photothermal effect
类别
资金
- National Natural Science Foundation of China [21871078, 51672073]
- Natural Science Foundation of Heilongjiang Province [JQ2019B001, B2018010]
- Heilongjiang Postdoctoral Startup Fund [LBH-Q14135]
- Heilongjiang University Science Fund for Distinguished Young Scholars [JCL201802]
- Heilongjiang Provincial Institutions of Higher Learning Basic Research Funds Basic Research Projects [KJCX201909]
- Youth Science and Technology Innovation Team Project of Heilongjiang Province [2018-KYYWF1593]
- Heilongjiang Touyan Innovation Team Program
Wide-spectrum response ZnS quantum dots/urchin-like Bi2S3 spheres/mesoporous g-C3N4 nanosheets ternary photocatalysts are prepared via the hydrothermal and template-calcination processes. The deposited ZnS quantum dots with the size of similar to 10 nm are bedecked on the surface of mesoporous g-C3N4 nanosheets uniformly. Mesoporous g-C3N4 performs as a bridge for electrons transferring among the three semiconductor photocatalysts in ternary heterojunction structure. The photocatalytic H-2 evolution for ZnS/Bi2S3/mesoporous g-C3N4 reaches to 663.3 mu mol h(-1) g(-1) under the sunlight irradiation, which is approximately 5 times higher than that of pristine mesoporous g-C3N4; Moreover, the photocatalytic degradation of Bisphenol A is also up to 98.8% under the visible light irradiation; Surprisingly, the apparent reaction rate constant (k) of ZnS/Bi2S3/mesoporous g-C3N4 is approximately 5 times higher than mesoporous g-C3N4. The excellent photocatalytic performance may put down to the formation of ternary heterojunction and mesoporous structure, which could promote charges separation and offer more surface active sites, respectively, and the specific photothermal effect, which even has photo-response in the near infrared region. This work also offers a novel strategy for constructing other highly photocatalytic performance quantum dots-semiconductor photocatalysts.
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