Issue 9, 2018

Oxidation catalyst obtained by the immobilization of layered double hydroxide/Mn(iii) porphyrin on monodispersed silica spheres

Abstract

Several functional hybrid materials have been reported as immobilized porphyrin derivatives in various organic and inorganic host materials (polymers, mineral clays, silica, etc.), with potential applications in various fields, such as photochemistry, electrochemistry and heterogeneous catalysis. Layered double hydroxides (LDHs), commonly known as hydrotalcite-like materials, have also been analyzed for use as supports for metallocomplexes. Recently, nanocomposite materials with a core–shell structure produced by combining two kinds of nanometer-size materials have received considerable attention, since the use of these materials is a promising strategy to prevent the aggregation and self-oxidation of molecules, reducing the catalytic activity. In this study, monodispersed hierarchical layered double hydroxides on silica spheres (LDH@SiO2) with core–shell structures were developed for metalloporphyrin immobilization and the materials were used as the oxidant catalysts of different substrates.

Graphical abstract: Oxidation catalyst obtained by the immobilization of layered double hydroxide/Mn(iii) porphyrin on monodispersed silica spheres

Article information

Article type
Paper
Submitted
28 Way 2017
Accepted
23 Xim 2017
First published
23 Xim 2017

Dalton Trans., 2018,47, 3068-3073

Oxidation catalyst obtained by the immobilization of layered double hydroxide/Mn(III) porphyrin on monodispersed silica spheres

K. M. Mantovani, K. C. Molgero Westrup, R. M. da Silva Junior, S. Jaerger, F. Wypych and S. Nakagaki, Dalton Trans., 2018, 47, 3068 DOI: 10.1039/C7DT03656F

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