Citation: Qian Kun, Zhao Evan Wenbo, He Shuai, Wei Wei David. The effect of surface electronic structures of Au/TiO₂ on sonophotochemical reactions[J]. Chinese Chemical Letters, ;2018, 29(6): 783-786. doi: 10.1016/j.cclet.2018.03.027 shu

The effect of surface electronic structures of Au/TiO₂ on sonophotochemical reactions

a.
Department of Chemistry and Center for Catalysis, University of Florida, Gainesville, FL 32611, United States
b.
Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China

Corresponding author: Wei Wei David, wei@chem.ufl.edu
Received Date: 31 January 2018
Revised Date: 16 March 2018
Accepted Date: 19 March 2018
Available Online: 23 June 2018

Figures(3)

Sonophotocatalysis combines ultrasonic and light irradiations to drastically boost the chemical reaction rate and has attracted many interests for its potential applications in the environmental remediation and protection. However, it still remains unclear whether the light irradiation could couple with the ultrasound to prompt the sonophotocatalytic process. Here, we selectively excited the TiO₂ and Au to manipulate the electronic structures of Au/TiO₂ and studied their influence in sonophotocatalytic water (H₂O) reduction. Surprisingly, no significant increase of the hydrogen (H₂) production rate was observed under either the UV light irradiation or the visible light irradiation, suggesting that the change in electronic structures of Au/TiO₂ does not prompt the generation of free radicals under sonication and the reaction is dominated by the recovery of active sites through ultrasound. Our findings established an indepth understanding of the origin of the enhanced catalytic activity in sonophotocatalysis.
- Sonophotocatalysis,
- Localized surface plasmon resonance,
- Electronic structure,
- Water reduction,
- Au/TiO₂
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

The effect of surface electronic structures of Au/TiO2 on sonophotochemical reactions

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通讯作者: 陈斌, bchen63@163.com

The effect of surface electronic structures of Au/TiO₂ on sonophotochemical reactions