期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 117, 期 10, 页码 5132-5141出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp311996r
关键词
-
资金
- National Natural Science Foundation of China [51102015, 21071014, 51004008]
- Fundamental Research Funds for the Central Universities [FRF-AS-11-002A, FRF-TP-12-023A]
- China Postdoctoral Science Foundation [20110490009]
- Research Fund for the Doctoral Program of Higher Education of China [20110006120027]
- National High Technology Research and Development Program of China (863 Program) [2012AA062302]
- National Basic Research Program of China (973 Program) [2007CB613301]
- Program for New Century Excellent Talents in University [NCET-11-0577]
The hierarchical photocatalysts of Ag-AgCl@Bi20TiO32 composites have been successfully synthesized by anchoring Ag-AgCl nanocrystals on the surfaces of mesoporous single-crystalline metastable Bi20TiO32 nanosheets via a two-stage strategy for excellent visible-light-driven photocatalytic activities in the Z-scheme system. First, the single-crystalline metastable Bi20TiO32 nanosheets with tetragonal structures were prepared via a facile hydrothermal process in assistance with the post-heat-treatment route using benzyl alcohol. Especially, the mesoporous Bi20TiO32 nanosheets showed high photocatalytic activity for the degradation of rhodamine B dye under visible-light irradiation. Then, the as-prepared mesoporous Bi20TiO32 nanosheets were used as a support for loading Ag-AgCl nanocrystals using the deposition-precipitation method and irradiation-reduction process to fabricate the Ag-AgCl@Bi20TiO32 composites. Inspiringly, the hierarchical Ag Ag-Cl@Bi20TiO32 photocatalyst has the higher photocatalytic performance than Ag-AgCl nanocrystals and mesoporous Bi20TiO32 nanosheets over the degradation of rhodamine B and acid orange 7 dyes, which is attributed to the effective charge transfer from plasmon-excited Ag nanocrystal to Bi20TiO32 for the construction of a Z-scheme visible-light photocatalyst. This work could provide new insights into the fabrication of hierarchically plasmonic photocatalysts with high performance and facilitate their practical application in environmental issues.
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