【摘要】 采用高压塑片工艺制备新型β-PbO2电极,该工艺简单易行,且所得β-PbO2电极具有很好的抗腐蚀性能。为研究该电极的电催化性能,探讨了电极间距、电解时间、茜素红初始浓度、外加电压、初始pH等条件对该电极降解茜素红染料效果的影响,并与石墨电极进行对比。结果表明,β-PbO2电极在脱色和COD去除方面都有明显的优越性。根据茜素红的分子结构和电解产物气相色谱—质谱联用(GC/MS)仪分析结果,初步探讨了茜素红降解的反应机制。更多还原

【Abstract】 A novel β-PbO2 anode was prepared by high-pressure tablet forming method.The results showed that this electrode had excellent corrosion resistance.To study the electro-catalytic activity of obtained β-PbO2 anode,the influence of various factors,such as reaction time,load voltage,initial alizarin red concentration,initial pH and inter-electrode distance on the electrolysis efficiency of alizarin red was studied.Compared to graphite anode,the β-PbO2 anode had obvious superiority in both color removal and COD removal rate.A reaction mechanism was proposed based on the molecular structure of alizarin red and GC-MS analysis results.更多还原