Enhanced photocatalysis by coupling of anatase TiO2 film to triangular Ag nanoparticle island

被引:0
作者
Jinxia Xu
Xiangheng Xiao
Feng Ren
Wei Wu
Zhigao Dai
Guangxu Cai
Shaofeng Zhang
Juan Zhou
Fei Mei
Changzhong Jiang
机构
[1] Wuhan University,Key Laboratory of Artificial Micro
[2] University of Electronic Science and Technology of China, and Nano
[3] Wuhan University,structures of Ministry of Education
[4] Hubei University of Technology,State Key Laboratory of Electronic Thin Films and Integrated Devices
来源
Nanoscale Research Letters | / 7卷
关键词
plasmon; photocatalysis; nanospheres lithography; Ag nanoparticle island;
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摘要
In order to overcome the low utilization ratio of solar light and high electron-hole pair recombination rate of TiO2, the triangular Ag nanoparticle island is covered on the surface of the TiO2 thin film. Enhancement of the photocatalytic activity of the Ag/TiO2 nanocomposite system is observed. The increase of electron-hole pair generation is caused by the enhanced near-field amplitudes of localized surface plasmon of the Ag nanoparticles. The efficiently suppressed recombination of electron-hole pair caused by the metal-semiconductor contact can also enhance the photocatalytic activity of the TiO2 film.
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