Recyclable Porphyrin Catalyst with Core-shell Nanostructure

摘要

In the search for a simple preparation method of heterogeneous catalyst,the iron porphyrins were coordinated bonded to the surface of a polymeric core-shell nanosphere.The heterogeneous catalyst was characterized by FT-IR,scanning electron microscope,and UV-vis spectrophotometer.The iron porphyrin bound core-shell nanospheres was about 470 nm in diameter and their catalytic activity for cyclohexene oxidation was similar to a homogeneous iron porphyrin in a solvent composition range of 25-75% acetonitrile/water (v/v).In addition,they could be recovered by simple centrifugation and their catalytic activity was maintained more than the third cycle.