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《Research of Environmental Sciences》 2009-05
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Decomposition of Carbon Tetrafluoride by Dielectric Barriers Discharge Plasma

SHEN Yan~1,YE Zhao-lian~(1,2),CHEN Qi~1,HOU Hui-qi~1,ZHANG Ren-xi~11.Department of Environmental Science,Fudan University,Shanghai 200433,China2.Department of Environmental Engineering of Jiangsu Teacher's University of Technology,Changzhou 213001,China  
Carbon tetrafluoride(CF_4),a strong greenhouse gas,was destructed with dielectric barriers discharge(DBD).The experimental results indicated that the decomposition efficiency of CF_4 increased with the increase of discharging time.In addition,we investigated the influence of three kinds of additive gases(Ar,Air,O_2) on decomposition efficiency of CF_4,The results showed that decomposition efficiency can be increased to some extent,following the order: Ar Air O_2.Decomposition efficiency of CF_4 can reach 98.2% after 4 min discharge at(1 000 V) operating voltage.The experiment also showed that water vapor cannot be helpful to the decomposition efficiency of carbon tetrafluoride.Lastly,we analyzed discharge products by fourier transformation infrared spectrometer(FTIR),finding them to be mainly CO_2,CO,COF_2.
【Fund】: 国家自然科学基金项目(20507004)
【CateGory Index】: X132
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