College of Environmental & Energy Engineering, Beijing University of Technology, No. 100 Ping Le Yuan, Chaoyang District, Beijing 100124, PR China.
Chemosphere. 2013 Aug;92(10):1390-5. doi: 10.1016/j.chemosphere.2013.05.042. Epub 2013 Jun 15.
Degradation of toluene in a gas by non-thermal plasma with a ferroelectric catalyst was studied at normal temperature and atmospheric pressure. Spontaneous polarization material (BaTiO3) and photocatalyst (TiO2) were added into plasma system simultively. Toluene degradation efficiency and specific energy density during the discharge process were investigated. Furthermore, byproducts and degradation mechanisms of toluene were also investigated. The toluene degradation efficiency increased when non-thermal plasma technology was combined with the catalyst. The toluene degradation efficiencies of the different catalysts tested were in the following order: BaTiO3/TiO2>BaTiO3>TiO2>no catalyst. A mass ratio of 2.38:1 was optimum for the BaTiO3 and TiO2 catalyst. The outlet gas was analyzed by gas chromatography and Fourier transform infrared spectroscopy, and the main compounds detected were CO2, H2O, O3 and benzene ring derivatives.
在常压和常温下，研究了铁电催化剂存在下非热等离子体对甲苯的降解。同时将自发极化材料（BaTiO3）和光催化剂（TiO2）添加到等离子体系统中。考察了放电过程中甲苯的降解效率和比能密度。此外，还研究了甲苯的降解产物和降解机理。当非热等离子体技术与催化剂结合使用时，甲苯的降解效率增加。测试的不同催化剂的甲苯降解效率依次为：BaTiO3/TiO2>BaTiO3>TiO2>无催化剂。BaTiO3 和 TiO2 催化剂的最佳质量比为 2.38:1。通过气相色谱和傅里叶变换红外光谱对出口气体进行分析，检测到的主要化合物为 CO2、H2O、O3 和苯环衍生物。
