Comparative study of TiO2 and ZnO photocatalysts for the enhancement of ozone generation by surface dielectric barrier discharge in air

被引：38
|
作者：
Pekarek, S. [1 ]
Mikes, J. [1 ]
Krysa, J. [2 ]
机构：
[1] Czech Tech Univ, Fac Elect Engn, Tech 2, Prague 16627 6, Czech Republic
[2] Prague Inst Chem Technol, Tech 5, CR-16628 Prague 6, Czech Republic
来源：
APPLIED CATALYSIS A-GENERAL | 2015年 / 502卷
关键词：
Titanium dioxide; Zinc oxide; Ozone; Surface dielectric barrier discharge; OXYGEN;
D O I：
10.1016/j.apcata.2015.06.003
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We examined the possibility of finding an alternative to the photocatalyst titanium dioxide for enhancement of ozone generation by electrical discharges. As a rough indicator of the photocatalytic activity of the catalysts, we took the concentration of the ozone produced by the surface dielectric barrier electrical discharge in air. This discharge is, apart from the source of the charged and excited species, also the source of ultraviolet radiation, which could be used for the activation of photocatalysts. From various photocatalysts we have chosen zinc oxide. We compared the effect of ZnO and TiO2 on the enhancement of discharge ozone production and we found that for this application ZnO shows almost the same effect as TiO2 photocatalyst. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：122 / 128
页数：7
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