高分子金属卟啉光催化氧化处理废水

 将高分子金属卟啉聚中位四（4，4’－联苯二磺酰基）氧基苯基钴卟啉用于多相光催化体系，在温和条件下成功地降解了有机染料吖啶橙．实验结果表明，降解反应符合一级动力学方程lnct＝2．52052－0．56546t（R＝－0．99704），经8h的反应以后，染料溶液完全褪色．将此光催化剂用于混合染料、染料废水、化工厂废水及生活污水的处理，脱色率可达68％，COD去除率可达58％．通过对高压汞灯、碘钨灯和自然光等各种光源进行比较，发现在太阳光照射下，金属卟啉光催化氧化降解有机污染物的效率更高、速度更快、降解更完全．

Performance of Polymeric Metalloporphyrins for Photocatalytic Oxidative Degradation of Wasted-Water

In heterogeneous photocatalytic oxidation system, acridine orange (AO) was degraded successfully by polymeric metalloporphyrin Co [meso tetra (4, 4' biphenylbisulfonyl) phenylporphyrin] (PCoTBPBSOPP) under mild conditions. The results indicated that the photodegradation of AO obeys the first order law with equation as ln c t =2.520?52-0.565?46 t ( R =-0.997?04). AO was decolored and decomposed completely after 8 h. Since PCoTBPBSOPP was applied to treat textile, industrial and domestic wasted water, it was found that the average decolorization ratio of the dyes wasted water is up to 68% and the average removal of COD reaches 58%. By comparison with high pressure mercury lamp (HPML), iodine tungsten lamp(ITL) and natural sunlight(NSL), AO can be decomposed rapidly under irradiation with NSL. It is proved that the polymeric metalloporphyrins have a potential effective application in treating the wasted water under natural conditons.