摘要
研究了应用于电催化脱氯的钯/泡沫镍电极的最佳制备工艺条件.使用电沉积法制备钯/泡沫镍电极,在单因素试验的基础上,选取电流密度、制备温度、钯溶液浓度为自变量,多酚的提取率为响应值,根据响应面Box-Benhnken试验设计原理,采用三因子三水平的分析法模拟得到二次多项式回归方程的预测模型,优化钯/泡沫镍电极的制备工艺.钯/泡沫镍电极的最佳工艺条件为:电流密度7.94 m A/cm^2、制备温度40.3℃、钯溶液浓度14.195 mmol/L.在此条件下制备的电极对2,4-二氯苯酚去除率可达到99.44%,与预测值99.67%高度相符.
The objective of this paper is to optimize the synthesis conditions of Pd/foam-Ni electrode used in the electrocatalytic dechlorination. The Pd/foam-Ni electrode was synthesized by constant current electrodeposition. On the basis of single-factor test,the response surface methodology was used to investigate the effects of processing parameters,including current density,temperature,and the concentration of Pd^（2＋） solution. The removal rate of 2,4-dichlorophenol was chosen as response value,mathematical model was established by implementing three factors and three levels. The optimum technological conditions were current density of 7. 94 m A/cm^2,temperature of 40. 3 ℃ and the Pd^（2＋） concentration of 14. 195mmol/L. The removal rate of 2,4-dichlorophenol was up to 99. 44%,which is highly consistent with the predictive value of 99. 67%.
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2017年第4期426-431,共6页
Journal of Harbin University of Commerce：Natural Sciences Edition
基金
大学生创新创业实践课题(201510240030)
关键词
电催化脱氯
响应面
泡沫镍
2
4-二氯苯酚
electrocatalytic dechlorination
response surface methodology
Pd/foam-Ni electrode
