期刊
SCIENCE CHINA-CHEMISTRY
卷 60, 期 4, 页码 521-527出版社
SCIENCE PRESS
DOI: 10.1007/s11426-016-9027-6
关键词
metal nanoparticles; TiO2; plasmon resonance; nano-flower; photocatalysis
资金
- Ministry of Education of Singapore [R-143-000-607-112]
- National Natural Science Foundation of China [21673155]
Uniform flower-like TiO2 coated Au nanostars and core-shell Au@Ag nanostars with different amounts of Ag coating were prepared through a facile method by hydrolysis of TiF4 under an acidic environment. The photocatalytic capability of these flower-like nanocomposites under visible light irradiation was found to be enhanced by up to 4.7-fold compared to commercial P25 TiO2 nanoparticles. The enhanced photocatalytic activity was ascribed to improved light absorption and hot electron injection from the photo-excited Au@Ag core to the TiO2 shell.
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