| This paper mainly studies on the preparation and characterization of metalloporphyrins and its supported-metalloporphyrins, and they were used as catalyst in the oxidation of ethylbenzene with air under mild conditions in the absence of adiditives. The supported-metalloporphyrins were found to be more effective catalysts for ethylbenzene oxidation under mild conditions than unsupported metalloporphyrins. The stability of the metalloporphyrins was obviously improved and can be easily recovered for reuse. The effect of the support on the catalytic activity and the technology of magnetic separation on recovering in this catalysis system have been discussed.This thesis was devided into five chapters. We mainly generalized the development of metalloporphyrins and its supported-metalloporphyrins in catalyzing the oxidation of alkyl, and the prospect of nanotechnology and nanometer composite catalysts in the first.In the second and third chapter we depicted the synthesis and characterization of metalloporphyrins, like TPPFeCl, TPPMnCl, TP-OHPPFeCl, TP-OHPPMnCl, FeIIIHPTPPCl, MnIIIHPTPPCl and its supported-metalloporphyrins, like silica gel, nanostructured SiO2 and magnetic nanoparticles (F/S) supported-metalloporphyrins.Their structure was characterized via 'HNMR, IR, MS, UV-Vis spectrum, XRD,VSM, SEM, TEM or HRTEM and so on.The forth and fifth section were the results and discussion of catalytic activity of supported-metalloporphyrins in compared with unsupported-metalloporphyrins. These metalloporphyrins were used as catalysts in the oxidation of ethylbenzene with air under mild conditions in the absence of adiditives. We also reclaimd the supported metalloporphyrins and reused to catalysis the oxidation of ethylbenzene in the same conditions. The recycle experiment results and the technology of magnetic separation on recovering in this catalysis system has also been discussed.The summary of main researching works and its prospect were given in the last chapter. |
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