I.R. Guimarães et al. / Applied Catalysis A: General 450 (2013) 106–113
113
Fig. 16. Scheme of biphasic reaction in the presence of natural limonite (a) and Gli 400 sample (b).
4. Conclusions
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Glycerol was carbonized over the iron oxide surface at 400 ◦C
under N2 flow producing a hydrophobic carbon layer. Further-
more, the thermal decomposition of glycerol caused the formation
of reduced iron species with high capacity to decompose hydro-
gen peroxide. The material can be easily recovered using a magnet
device to be reused. The magnetic catalyst presented high catalytic
activity for oxidation of quinoline and DBT in organic medium
as showed by mass spectrometry analyses. We also observed an
amphiphilic property for the reduced materials presenting a great
potential for an ODS fuel treatment.
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Acknowledgments
[21] F. Magalhães, M.C. Pereira, J.D. Fabris, S.E.C. Bottrel, M.T.C. Sansiviero, A. Amaya,
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The authors thank the financial support of Fapemig, CNPq,
CAPES, and Petrobras-Brazil.
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