新型二氧化铅阳极电催化降解有机污染物的特性研究

通过XRD、SEM等表征,以酚类化合物为目标污染物,研究了经改性的新型含氟β-PbO2阳极电催化氧化污染物的特性.结果表明,该电极对酚类有机污染物的降解显示了良好的电催化活性、稳定性和抗腐蚀性,有较好的环保应用前景.进一步通过羟基自由基清除剂异丙醇加入前后降解效果的比较证实了本系统中有机污染物的降解主要基于羟基自由基的作用机理,是一种电化学高级氧化工艺.

Electrochemical Oxidation for the Degradation of Organic Pollutants on a Novel PbO2 Anode

A novel lead dioxide anode modified by fluorine and characterized byX-ray diffraction (XRD) and SEM,was applied to the organic degradation by using phenolic compounds as model pollutants.It was found that this anode showed good resistance to corrosion,perfect electrocatalytic activity and stability,indicating potential for future environmental application.Further,the degradation of organics was confirmed to be mainly of the hydroxyl radical mechanism by using isopropanol as radical scavenger,hence,such an oxidation process is essentially an advanced electrochemical oxidation process (AEOPs).