【摘要】 为研究PbO2电极的性能,在酸性溶液中,以电沉积法制备了改性钛基PbO2电极,优化并确定了电极的制备工艺,并利用SEM对电极的表面形貌进行了检测.以硝基苯酚为目标有机物,考察了电极的电催化氧化性能.采用铋掺杂PbO2电极处理水中邻硝基苯酚、间硝基苯酚和对硝基苯酚,并对不同硝基苯酚的矿化过程以及降解动力学进行了比较.研究表明:改性PbO2电极的电催化性能优于传统的PbO2电极;邻硝基苯酚在本研究条件下更易被降解.更多还原

【Abstract】 For investigating the properties of Lead dioxide electrode,modified Lead dioxide electrodes on Ti substrates were prepared by electro-deposition in acid solution.The morphologies of Lead dioxide electrodes were examined by SEM.Taking nitrophenols(NPs) as model substrates,the electro-catalytic activity of prepared anode were investigated.Electrochemical oxidation of o-nitrophenol,m-nitrophenol and p-nitrophenol on bismuth doped lead dioxide electrode was evaluated, respectively.The process of mineralization,the reaction kinetic and the nitro-group transformation of the NPs were compared.The results indicated that the electro-catalytic characteristics of modified PbO2 anode were superior to that of traditional DSA electrode of PbO2 on Ti substrates,o-nitrophenol was more easily degraded under this study condition.更多还原