This study describes the immobilization of tetraphenylporphyrinatomanganese(III) chloride, (MnPor), onto imidazole functionalized MCM-41 with magnetite nanoparticle core (Fe₃O₄@MCM-41-Im). The resultant material (Fe₃O₄@MCM-41-Im@MnPor) was characterized by X-ray diffractometry (XRD), Fourier transform infra-red (FT-IR), diffuse reflectance UV–Vis spectrophotometry (DR UV-Vis), field emission scanning electron microscopy (FESEM), Inductively coupled plasma (ICP), analyzer transmission electron microscopy (TEM) and Brunauer-Emmett-Teller (BET) surface area. This new heterogenized catalyst was applied as an efficient catalyst for the epoxidation of a variety of cyclic and linear olefins with NaIO₄ under mild conditions. The prepared catalyst can be easily recovered through the application of an external magnet, and reused several times without any significant decrease in activity and magnetic properties.

这项研究描述了用磁铁矿纳米颗粒核（Fe ₃ O ₄ @ MCM-41-Im）将氯化四苯基卟啉锰（IIIP）固定化到咪唑官能化的MCM-41上。所得材料（Fe ₃ O ₄ @ MCM-41-Im @ MnPor）通过X射线衍射（XRD），傅立叶变换红外光谱（FT-IR），漫反射紫外可见分光光度法（DR UV-Vis）进行表征），场发射扫描电子显微镜（FESEM），电感耦合等离子体（ICP），分析仪透射电子显微镜（TEM）和Brunauer-Emmett-Teller（BET）表面积。这种新型的均相催化剂被用作有效的催化剂，用于各种环状和直链烯烃与NaIO ₄的环氧化在温和的条件下。制备的催化剂可通过施加外磁体而容易地回收，并重复使用几次，而活性和磁性能没有任何显着降低。