摘要
以自制PdOx-RuO2y/Ti电极为阳极,钛板为阴极,研究电催化氧化处理苯胺废水.探讨了电解质浓度、电流密度以及苯胺初始浓度对处理效果的影响.苯胺的降解速率主要取决于电流密度和电解质浓度,随两者的增加均增大;苯胺的初始浓度增大,其降解速率下降,但去除总量随之增加.动力学研究表明,苯胺的电催化氧化过程符合一级反应动力学.采用线性回归方法,确定反应速率常数分别与电流密度的0.712次方、电解质浓度的0.228次方、苯胺初始浓度的-1.147次方成线性关系.
With the DSA electrode（PdOx-RuO2y/Ti） as anode and the titanium plate as cathode, it was to study the aniline - oxidation＇ s characteristics. This study also discussed the influences that brought by different electrolyte concentration, current density and initial aniline concentration in the process of degrading aniline. The aniline electro -oxidation＇ s removal rate increased as the increasing of electrolyte concentration and current density. Aniline＇ s degradation rate decreased as the initial an- iline concentration increases, while the absolute removal value was increased. The kinetics study of aniline electro- oxidation indicated that the aniline electric catalytic oxidation process accorded with the first - order reaction dynamic model： the oxidation rate constant had linear relation with current density, chloride concentration, and initial aniline concentration after using the method of linear. The powers were 0. 712, 0. 228, - 1. 147.
出处
《福州大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第5期934-939,共6页
Journal of Fuzhou University(Natural Science Edition)
关键词
苯胺
电催化氧化
降解
动力学
aniline
electrochemical catalytic oxidation
degradation
kinetics
