title: Toluene degradation by non-thermal plasma combined with a ferroelectric catalyst.
abstract: 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.
authors.affiliation: College of Environmental & Energy Engineering, Beijing University of Technology, No. 100 Ping Le Yuan, Chaoyang District, Beijing 100124, PR China. liangwenj1978@hotmail.com
authors.forename: Wen-Jun
authors.initials: WJ
authors.lastname: Liang
authors.forename: Lin
authors.initials: L
authors.lastname: Ma
authors.forename: Huan
authors.initials: H
authors.lastname: Liu
authors.forename: Jian
authors.initials: J
authors.lastname: Li
mesh_terms: D017609:Barium Compounds / Q000737:chemistry*; D002384:Catalysis; D004785:Environmental Pollutants / Q000737:chemistry / Q000302:isolation & purification*; D010126:Ozone / Q000737:chemistry; D058626:Plasma Gases / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*; D014050:Toluene / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D017609:Barium Compounds; D004785:Environmental Pollutants; D058626:Plasma Gases; C024547:barium titanate(IV); C009495:titanium dioxide; D014050:Toluene; D010126:Ozone; D014025:Titanium
keywords: BaTiO(3); Catalyst; Non-thermal plasma; TiO(2); Toluene degradation