Citation: Xiaoping Wang, Yixia Chen, Min Fu, Zihan Chen, Qiulin Huang. Effect of high-voltage discharge non-thermal plasma on g-C₃N₄in a plasma-photocatalyst system[J]. Chinese Journal of Catalysis, ;2018, 39(10): 1672-1682. doi: 10.1016/S1872-2067(18)63115-8 shu

Effect of high-voltage discharge non-thermal plasma on g-C₃N₄in a plasma-photocatalyst system

College of Environment and Resources, Chongqing Key Laboratory of Catalysis and Environmental New Material, Chongqing Technology and Business University, Chongqing 400067, China

Received Date: 15 April 2018
Revised Date: 26 May 2018

Fund Project: This work was supported by National Natural Science Foundation of China (21406022), Chongqing Science and Technology Commission (cstc2015jcyjA20017, cstc2017shmsA20015, cstc2016shmszx20012), Chongqing Education Commission (Kj1500610), and Key Laboratory of Natural Medicine Research of Chongqing (1556034).

The synergistic effect of high voltage discharge non-thermal plasma (NTP) and photocatalysts on contaminant removal has repeatedly confirmed by plenty of researches. Most previous plasma-photocatalyst synergistic systems focused on the utilization of the ultraviolet light but ignored the visible light generated by high voltage discharge. Graphitic carbon nitride (g-C₃N₄), a metal-free semiconductor that exhibits high chemical stability, can utilize both the ultraviolet and visible light from high voltage discharge. However, the synergistic system of NTP and g-C₃N₄ has been researched little. In this paper, the effect of NTP generated by dielectric barrier discharge (DBD) on g-C₃N₄is studied by comparing the photocatalytic activities, the surface physical structure and the surface chemical characteristics of pristine and plasma treated g-C₃N₄. Experimental results indicate that the DBD plasma can change the physical structure and the chemical characteristics and to further affect the photocatalytic activity of g-C₃N₄. The effect of NTP on g-C₃N₄is associated with the discharge intensity and the discharge time. For a long time scale, the effect of NTP on g-C₃N₄ photocatalysts presents a periodic change trend.
- g-C₃N₄,
- Non-thermal plasma,
- Photocatalytic activity,
- Physical structure,
- Chemical characteristic
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Effect of high-voltage discharge non-thermal plasma on g-C3N4in a plasma-photocatalyst system

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通讯作者: 陈斌, bchen63@163.com

Effect of high-voltage discharge non-thermal plasma on g-C₃N₄in a plasma-photocatalyst system