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Polyol-made Mn3O4 nanocrystals as efficient Fenton-like catalysts

Tarik Rhadfi 1, 2 Jean-Yves Piquemal 3 Lorette Sicard 3 Fréderic Herbst 3 Emmanuel Briot 4 Marc Benedetti 5 Ahmed Atlamsani 6
1 Univ Paris 07, ITODYS, CNRS, UMR 7086, F-75205 Paris 13, France
2 Univ Abdelmalek Essaadi, Fac Sci, Lab Phys Chim Interfaces & Environm, Tetouan 93000, Morocco
3 ITODYS (UMR_7086) - Interfaces, Traitements, Organisation et Dynamique des Systèmes
4 PECSA - Physicochimie des Electrolytes, Colloïdes et Sciences Analytiques
5 Géochimie des Eaux
6 Laboratoire de Chimie Physique Appliquee, Chimie des Surfaces, Interfaces et Catalyse, ,
Abstract : Nanosized Mn3O4 single crystals are prepared using the polyol method and characterized with powder X-ray diffraction, transmission electron microscopy and physisorption experiments. Depending on the reaction time, either oval-like nanocrystals with a mean TEM size of 7.9 nm or rhomboedron-like particles with a mean TEM size of 12.6 nm are isolated. These particles are active towards the decomposition of aqueous hydrogen peroxide at room temperature and the data show that the reaction kinetics depend on the particle size and shape. The degradation of a model substrate, methylene blue is also investigated
Keywords : Fenton chemistry Hydrogen peroxide Polyol Nanomaterials Mn3O4
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https://hal-insu.archives-ouvertes.fr/insu-02885874
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Submitted on : Wednesday, July 1, 2020 - 9:58:43 AM
Last modification on : Monday, December 7, 2020 - 1:08:04 PM

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Tarik Rhadfi, Jean-Yves Piquemal, Lorette Sicard, Fréderic Herbst, Emmanuel Briot, et al.. Polyol-made Mn3O4 nanocrystals as efficient Fenton-like catalysts. Applied Catalysis A : General, Elsevier, 2010, 386 (1-2), pp.132-139. ⟨10.1016/j.apcata.2010.07.044⟩. ⟨insu-02885874⟩

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