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=2.52052-0.565 46t(R=-0.997 04),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.
In heterogeneous phot ocatalytic oxidation system, acridineorange (AO) was degraded successfully by polymeric metalloporphyrin Co [meso-tetra (4, 4'-biphenylbisulfonyl) phenylporphyrin] ( PCoTBPBSOPP) under mild conditions. The results indicated that the photodegra dation of AO obeys the first order law with equation as lnct=2.520 52-0.565 46t (R=-0.997?04). AO was decolored and decomposed completel y after 8 h. Since PCoTBPBSOPP was applied to treat textile, industrial and dome stic 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 re aches 58%. By comparison with high-pressure mercury lamp (HPML), iodine tungste n lamp (ITL) and natural sunlight(NSL), AO can be decomposed rapidly under irradiatio n with NSL. It is proved that the polymeric metalloporphyrins have a potential effective application in treating the wasted-water under natural conditons.
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