Flávia C.C. Moura

TL;DR: In this article, a new and highly active heterogeneous Fenton system based on iron metal and magnetite Fe 0 /Fe 3 O 4 composites has been prepared by controlled reduction of iron oxides.

TL;DR: In this article, a heterogeneous Fenton system based on Fe0/Fe3O4 composites is described and the increase in activity caused by the addition of Fe0 is discussed in terms of a creation of Fesurf2+ species during the preparation of the composite and by an electron transfer mechanism from Fe0 to FESurf3+ during the Fenton reaction to regenerate the Fesgurf2+, active species.

TL;DR: In this article, the structural and catalytic properties of Co, Cu and Ni spinel ferrites were investigated by the co-precipitation process and the results showed that the presence of cobalt ions is a crucial factor required to achieve a systematic efficiency of the catalyst in the H 2 O 2 decomposition.

TL;DR: In this paper, the use of a residue-based catalyst for heterogeneous photo-Fenton of Reactive black 5 (RB5) textile dye was evaluated by chemical vapor deposition of ethanol on a red mud residue, an important waste of the aluminum industry rich in iron oxide.

TL;DR: In this paper, floating photocatalysts based on composites of low density polyethylene (LDPE) containing 30, 68 and 82% of TiO 2 P25 were prepared and characterized by Scanning Electron Microscopy, Powder XRD data, surface area (B.E.T. method) and Thermogravimetric analyses.