摘要
制备了多种水溶性磺酸卟啉,利用多种测试手段如1H NMR,FTIR,UV-Vis及荧光等对该系列卟啉进行了表征及性质研究,测得荧光量子产率及寿命.利用不同氧源(空气、氧气、30%过氧化氢溶液)将该系列水溶性磺酸卟啉用于光催化氧化2,3-萘二酚的反应,反应产物是1,2-苯二甲酸,最高转化率可达91%.发现磺酸基和其它取代基的电子效应会影响卟啉的光催化活性.对该光催化氧化反应进行了动力学研究,并探讨了相应的催化机理.
A series of water-soluble sulfonated porphyrins have been synthesized and characterized by ~1H NMR, IR, UV-Vis, fluorescence and MS. The fluorescence quantum yield and lifetime of the series of porphyrins have been obtained. These porphyrins have been used as photocatalysts for the oxidation of 2,3-dihydroxynaphthalene. The main product has been proved to be 1,2-benzenedicarboxylic acid with the highest conversion rate of 91%. The effects of electron caused by different substituent groups and steric structure on sulfonated porphyrins photocatalytic activities have been investigated. It has been proved that substituent groups have electronic effects on the photocatalytic activities. The chosen of oxygen resource, the kinetics of the oxidation and the photocatalytic mechanism of sulfonated porphyrins have been investigated.
引文
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