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Catalysts 2019, 9(3), 290; https://doi.org/10.3390/catal9030290

Mechanochemically Synthesized Supported Magnetic Fe-Nanoparticles as Catalysts for Efficient Vanillin Production

1
Departamento de Química Orgánica, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, E14014 Cordoba, Spain
2
Scientific Center for Molecular Design and Synthesis of Innovative Compounds for the Medical Industry, People´s Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya str., Moscow 117198, Russia
*
Authors to whom correspondence should be addressed.
Received: 15 February 2019 / Revised: 12 March 2019 / Accepted: 18 March 2019 / Published: 21 March 2019
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Abstract

Magnetically separable nanocatalysts were synthesized by incorporating iron nanoparticles on a mesoporous aluminosilicate (Al-SBA-15) through a mechanochemical grinding pathway in a single step. Noticeably, magnetic features were achieved by employing biomass waste as a carbon source, which additionally may confer high oxygen functionalities to the resulting material. The resulting catalysts were characterized using X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, scanning electron microscopy, porosimetry, and magnetic susceptibility. The magnetic nanocatalysts were tested in the selective oxidative cleavage reaction of isoeugenol and vanillyl alcohol to vanillin. As a result, the magnetic nanocatalysts demonstrated high catalytic activity, chemical stability, and enormous separation/reusability qualities. The origin of catalytic properties and its relationship with the iron oxide precursor were analyzed in terms of the chemical, morphological, and structural properties of the samples. Such analysis allows, thus, to highlight the superficial concentration of the iron entities and the interaction with Al as key factors to obtain a good catalytic response. View Full-Text
Keywords: magnetic nanoparticles; mechanochemistry; iron oxides; Al-SBA-15; vanillin magnetic nanoparticles; mechanochemistry; iron oxides; Al-SBA-15; vanillin
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Márquez-Medina, M.D.; Rodríguez-Padrón, D.; Balu, A.M.; Romero, A.A.; Muñoz-Batista, M.J.; Luque, R. Mechanochemically Synthesized Supported Magnetic Fe-Nanoparticles as Catalysts for Efficient Vanillin Production. Catalysts 2019, 9, 290.

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