H_2O_2-抗坏血酸均相催化氧化法处理甲基橙  

Treatment of Methyl Orange by Homogeneous Catalysis Oxidation Using Hydrogen Peroxide and Ascorbic Acid

作　　者：李国清[1] 陈楷翰[1] 张伟军[1] 

机构地区：[1]泉州师范学院化学与生命科学学院,福建泉州362000

出　　处：《莆田学院学报》2007年第2期79-82,共4页Journal of putian University

基　　金：泉州市科技计划项目(Z200236)

摘　　要：采用一种新的均相催化氧化体系——H2O2-抗坏血酸体系处理高浓度甲基橙模拟偶氮染料废水。通过改变过氧化氢、抗坏血酸投加量及溶液pH值、反应温度、时间等影响因素的实验与分析,研究了该体系对甲基橙脱色率的影响,并初步探讨了氧化降解的机理。结果表明,该体系能有效地使高浓度(1900mg/L)甲基橙溶液脱色,脱色率大于98%。A system, composed of ascorbic acid and hydrogen peroxide, is applied to homogeneous catalysis oxidation of high concentration methyl orange solution as the simulated azo dyes wastewater. The effects of hydrogen peroxide amount, ascorbic acid amount, pH values of solution, temperature, reaction time on the decolorant rate of the methyl orange are investigated in detail, and the oxidative degradation mechanism of the methyl orange is also presented. The results show that the system can decolor the high concentration methyl orange solution （over 1900 mg/L）effectively, the decolorant rate is over 98%.

关 键 词：甲基橙 过氧化氢 抗坏血酸 废水 脱色 

分 类 号：O646.54[理学—物理化学]