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Post-synthetically modified SBA-15 with NH2-coordinately immobilized iron-oxine: SBA-15/NH2-FeQ3 as a Fenton-like hybrid catalyst for the selective oxidation of organic sulfides

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Abstract

A new modified SBA-15 meso-material with NH2-coordinately immobilized “iron-oxine” was fabricated by stepwise covalent grafting of -NH2 and then NH2-coordinate immobilization of tris(8-quinolinolato)iron onto the channels of SBA-15. The structural properties and chemical nature of SBA-15/NH2-FeQ3 were characterized by FTIR, scanning electron microscopy (SEM), SEM-EDX/mapping, transmission electron microscopy (TEM), low angle X-ray diffraction (L-XRD), thermal gravimetric analysis (TGA), N2-adsorption–desorption isotherms (BET) and atomic absorption spectroscopy (AAS). A Fenton-like green and eco-friendly procedure for the catalytic oxidation of aromatic organic sulfides to sulfones using H2O2 was investigated for the synthesised Fe/SBA-15 catalyst. This porous catalyst was found to be reusable for ten runs without appreciable change in the activity, or the composition of the catalyst.

Graphical abstract: Post-synthetically modified SBA-15 with NH2-coordinately immobilized iron-oxine: SBA-15/NH2-FeQ3 as a Fenton-like hybrid catalyst for the selective oxidation of organic sulfides

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Publication details

The article was received on 26 Jul 2017, accepted on 23 Nov 2017 and first published on 24 Nov 2017


Article type: Paper
DOI: 10.1039/C7NJ02742G
Citation: New J. Chem., 2018, Advance Article
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    Post-synthetically modified SBA-15 with NH2-coordinately immobilized iron-oxine: SBA-15/NH2-FeQ3 as a Fenton-like hybrid catalyst for the selective oxidation of organic sulfides

    H. Golchin Hosseini and S. Rostamnia, New J. Chem., 2018, Advance Article , DOI: 10.1039/C7NJ02742G

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