铁掺杂PbO_2/Ti阳极电催化氧化对硝基苯酚研究  

Study on Electro-catalytic Oxidation of Paranitrophenol by Fe-doped PbO_2/Ti Process

作　　者：温青[1] 张宝宏 李旭辉 

机构地区：[1]哈尔滨工程大学化工学院,黑龙江哈尔滨150001

出　　处：《中国给水排水》2006年第13期85-89,共5页China Water & Wastewater

摘　　要：以对硝基苯酚(P-NP)为去除目标,研究了改性后的新型铁掺杂PbO2/Ti阳极电催化氧化有机污染物的特性。结果表明,该电极对P-NP的降解显示出了良好的电催化活性和稳定性,其处理成本比普通PbO2/Ti的可减少1/3左右,具有较好的环保应用前景。同时,考察了电流密度、P-NP初始浓度、介质种类对P-NP去除率的影响,并初步探讨了电催化氧化反应的动力学方程及其氧化机理,结果表明P-NP的去除符合表观一级反应动力学。The characteristics of degradating organic pollutants were studied by electro-catalytic oxidation of Fe-PbOa/Ti, which was an unusual modified Fe-doped lead dioxide anode and was applied to degrade paranitrophenol as a model pollutant. The results show that the novel anode has perfect electrocatalytic activity and stability. The treatment cost of Fe-PbOa/Ti is 1/3 of PbO2/Ti, which indicates the potential for future environmental application. Various influence factors such as the initial paranitrophenol concentration, current density and electrolyte kinds were examined. Furthermore, the degradation kinetics and the possible oxidation mechanisms were discussed. The result shows that the first order reaction model can be used for the fitness of the paranitrophenol removal

关 键 词：对硝基苯酚 电催化氧化 铁掺杂钛基二氧化铅电极 

分 类 号：X703.1[环境科学与工程—环境工程]