The Role of Fe(Ⅱ)in the Contact Glow Discharge Electrolysis  

作　　者：高锦章 郭晓 马东平 杨武 

机构地区：[1]College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou 730070,China

出　　处：《Plasma Science and Technology》2007年第4期431-435,共5页等离子体科学和技术（英文版）

基　　金：supported in part by the Project of Key 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）, and Gansu Key Lab of Polymer Materials, China

摘　　要：In this paper, we use methyl violet as a model organic substrate in wastewater to study the effect of Fe（Ⅱ） ion on the contact glow discharge electrolysis （CGDE）. The decoloration rate and the COD （Chemical Oxygen Demand） value have been examined. It is found that the presence of Fe（Ⅱ） ion can accelerate obviously the degradation of methyl violet, because it reacts with H2O2 in the CGDE process to yield hydroxyl radical, just acting as a Fenton-like reagent. Moreover, the optimal conditions for decoloring methyl violet were obtained, by means of an orthogonal experiment, to be [Fe^2＋] =1×10^-3 mol/L, applied voltage of 700 V of and pH = 9.0.In this paper, we use methyl violet as a model organic substrate in wastewater to study the effect of Fe（Ⅱ） ion on the contact glow discharge electrolysis （CGDE）. The decoloration rate and the COD （Chemical Oxygen Demand） value have been examined. It is found that the presence of Fe（Ⅱ） ion can accelerate obviously the degradation of methyl violet, because it reacts with H2O2 in the CGDE process to yield hydroxyl radical, just acting as a Fenton-like reagent. Moreover, the optimal conditions for decoloring methyl violet were obtained, by means of an orthogonal experiment, to be [Fe^2＋] =1×10^-3 mol/L, applied voltage of 700 V of and pH = 9.0.

关 键 词：OXIDATION contact glow discharge electrolysis Fenton-like reagent methyl violet 

分 类 号：O461.21[理学—电子物理学]