Nano-Ti/TiO_2-PAn复合膜电极制备及其电催化降解对硝基苯酚  

Electrocatalytic oxidation of P-nitrophenol on Ti/nano TiO_2-PAn electrode

作　　者：方文彦[1] 胡云虎[1] 王凤武[1] 徐迈[1] 朱传高[1] 

机构地区：[1]淮南师范学院化学与化工系,淮南232001

出　　处：《四川大学学报（自然科学版）》2012年第3期649-653,共5页Journal of Sichuan University(Natural Science Edition)

基　　金：安徽省高校自然科学研究项目(KJ2010B198)

摘　　要：利用溶胶-凝胶法和电化学聚合制得Ti/nano TiO_2-PAn复合膜电极,并通过X射线衍射仪(XRD)、扫描电子显微镜(SEM)及循环伏安法(CV)对制备的Ti/nano TiO_2-PAn复合膜电极的结构和表面形貌进行了表征.以此电极对模拟污水进行了电化学处理,研究了nano TiO_2-PAn复合膜电极初始浓度、不同扫描速度、不同扫描圈数等因素对对硝基苯酚电催化降解影响,实验表明初始浓度为320 mg/L的对硝基苯酚,经Ti/nano TiO_2-PAn复合膜电极电催化降解1 h,降解率可达65.7%,在纳米有机体上聚合得到的聚苯胺复合膜具有良好的导电性,大大提高了电催化性能.Polymerization of aniline on nano TiO2 complex film electrode has been achieved by solgel method and electrochemical polymerization technique. XRD, SEM, cyclic voltammetry（CV） was used to characterize the structure and image of the nano TiO2PAn complex film. The nano TiO2PAn complex film electrode was used to process wastewater. Study the nano TiO2PAn composite film electrode electrooxidation degradation of impact in the the initial concentrations and different scan rate, the number of different scan circles and other factors. The experiment showed that the degradation rate was 65.7% when the initial concentration of 320 mg/L pnitrophenol in the hour.Ti/nano TiO2PAn composite film electrode has good conductivity, the electrocatalytic properties was greatly improved.

关 键 词：纳米Ti/TiO2-PAn复合膜电极 电催化 对硝基苯酚 

分 类 号：O646[理学—物理化学]