Journal
JOURNAL OF COORDINATION CHEMISTRY
Volume 68, Issue 13, Pages 2347-2360Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00958972.2015.1046850
Keywords
Magnetic nanoparticles; Surface functionalization; Nanocatalyst; Immobilized manganese porphyrin; Oxidation reactions
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Funding
- Research Council of Sharif University of Technology
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Magnetic nanoparticles (MNPs), Fe3O4@SiO2, have been prepared and functionalized by 3-(chloropropyl)trimethoxysilane and then by imidazole to synthesize Fe3O4@SiO2-Im. The functionalized Fe3O4 nanoparticles were used as a support to anchor manganese porphyrin via axial ligation. The prepared catalyst was characterized by elemental analysis, FT-IR spectroscopy, X-ray powder diffraction, UV-vis spectroscopy, and scanning electron microscopy. Application of immobilized manganese porphyrin as a heterogeneous catalyst in oxidation of alkenes and sulfides was explored. To find suitable reaction conditions, effect of different parameters such as solvent and temperature on immobilization process and also various reaction parameters (oxidant, solvent, and time) on oxidation reactions has been investigated. The results showed that the immobilized Mn-porphyrin on functionalized MNPs is an efficient and reusable catalyst for oxidation of substrates.
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