三维粒子电极催化氧化活性艳红X-3B实验研究  

Oxidation of Active Red X-3B with Particles Electrodes Using Three Dimensional Electrolysis

作　　者：刘占孟[1] 胡锋平[1] 李静[2] 王晓淼[1] 

机构地区：[1]华东交通大学土木建筑学院,江西南昌330013 [2]邢台职业技术学院建工系,河北邢台054035

出　　处：《环境科学与技术》2010年第1期31-34,共4页Environmental Science & Technology

基　　金：江西省教育厅基金(GJJ08248);河北省建设科学技术研究计划项目资助(2008-142);华东交通大学校级课题(07TM08)

摘　　要：采用浸渍焙烧法制备了Cu/γ-Al2O3、Cu-Co/γ-Al2O3粒子电极,TiO2/Ti为阳极、石墨为阴极,采用三维电极降解染料模拟废水活性艳红X-3B溶液,考察了粒子电极、槽电压、pH值、电解质浓度等因素对处理效果的影响。实验结果表明:该反应器能够有效的降解X-3B,粒子电极显示了较高的催化活性,双组分粒子电极Cu-Co/γ-Al2O3比单组分粒子电极Cu/γ-Al2O3有着更好的催化效果,降解机制主要是电致·OH的间接氧化和粒子电极表面的直接氧化的协同作用。Particles electrodes of Cu/γ-Al2O3, Cu-Co/γ-Al2O3 were prepared by wet impregnation-roasting method. A novel three dimensional electrolysis system with TiO2/Ti as anodes and graphite as cathodes was introduced to treat Active Red X- 3B solution which was used as simulated dyestuff. Effects of particles electrodes, applied voltage, fall value and electrolyte concentration on removal efficiency of TOC and X-3B were investigated. Experimental results indicated that the electrocatalytic oxidation process could efficiently remove and degrade X-3B and the particles electrodes improved electrochemical oxidation efficiency. Compared with the particles electrodes of Cu/γ-Al2O3, Cu-Co/γ-Al2O3 showed a higher catalysis. The removal mechanism could be attributed to both indirect oxidation of hydroxyl radicals generated in electric catalysis system and direct oxidation on the interface of particles electrodes.

关 键 词：电催化氧化 活性艳红 粒子电极 

分 类 号：X132[环境科学与工程—环境科学] O175.13[理学—数学]