عنوان مجله
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Journal of Colloid and Interface Science
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چکیده
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A green, robust and eco-friendly procedure for the oxidation of aromatic organic sulfides to sulfones
using H2O2 catalyzed by NH2-coordinately immobilized tris(8-quinolinolato)iron onto the silica coated
magnetite (Fe3SiO6) has been developed. Physicochemical properties of the resulting nanoparticles were
investigated by means of techniques including X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, vibrating sample magnetometer, atomic adsorption spectroscopy and FT-IR spectroscopy. The catalytic activity of sulfides oxidation showed that this atom-economical protocol
provided great yields of various sulfones and allowed the sulfide function reaction conducting under
the mild conditions thus to prevent the sulfide being over-oxidized to sulfoxides. The Fe3O4@SiO2-FeQ3
catalysts are magnetically separable and kept stable after recycling for 7 consecutive runs without detectable activity loss.
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