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Analysis of Energetic Species Caused by Contact Glow Discharge Electrolysis in Aqueous Solution 被引量:1

Analysis of Energetic Species Caused by Contact Glow Discharge Electrolysis in Aqueous Solution
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摘要 Contact glow discharge electrolysis is a non-Faradaic electrochemical process with an abnormal relationship between the current and voltage. Hydroxyl radicals, hydrogen radicals and hydrogen peroxide can be produced under the glow discharge, which are often used to degrade organic contaminants in aqueous solution. In this study, with 4-nitrophenol taken as an example of contaminants and tert-butanol as a scavenger of hydroxyl radicals, the role of energetic species in degrading organic compounds was examined in detail. Moreover, the effects of the applied voltage, solution conductivity and pH on the formation of three energetic species were also observed. The formation rate constants of the three energetic species were calculated based on the experimental data. Contact glow discharge electrolysis is a non-Faradaic electrochemical process with an abnormal relationship between the current and voltage. Hydroxyl radicals, hydrogen radicals and hydrogen peroxide can be produced under the glow discharge, which are often used to degrade organic contaminants in aqueous solution. In this study, with 4-nitrophenol taken as an example of contaminants and tert-butanol as a scavenger of hydroxyl radicals, the role of energetic species in degrading organic compounds was examined in detail. Moreover, the effects of the applied voltage, solution conductivity and pH on the formation of three energetic species were also observed. The formation rate constants of the three energetic species were calculated based on the experimental data.
出处 《Plasma Science and Technology》 SCIE EI CAS CSCD 2008年第1期30-38,共9页 等离子体科学和技术(英文版)
基金 the Key Project of Science and Technology of Education Ministry(00250) the Natural Science Foundation of Gansu Province(3ZS041-A25-028) the Invention Project of Science & Technology of NWNU(KJCXGC-01) Gansu Key Lab of Polymer Materials,China.
关键词 contact glow discharge electrolysis ANALYSIS energetic species formation rate constant contact glow discharge electrolysis, analysis, energetic species, formation rate constant
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