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Mechanochemical Preparation of Magnetically Separable Fe and Cu-Based Bimetallic Nanocatalysts for Vanillin Production

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Author
Gómez-López, Paulette
Espro, Claudia
Rodríguez-Padrón, Daily
Balu, Alina M.
Ivars-Barceló, Francisco
Irrazábal Moreda, Olvido
Alvarado-Beltrán, Clemente G.
Luque, Rafael
Publisher
MDPI
Date
2021
Subject
Mechanochemical synthesis
Mechanochemical extraction
Green chemistry
Solvent-free process
Cu nanoparticles
Heterogeneous catalysis
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Abstract
A highly sustainable method for the preparation of supported iron oxide and copper nanoparticles (NPs) on a biomass-derived carbon by solvent-free mechanochemical process is reported. In-situ mechanochemically obtained extracts from orange peel could behave as a green reducing agent, allowing the formation of Cu metal nanoparticles as well as generating a magnetic phase (magnetite) in the systems via partial Fe3+ reduction. At the same time, orange peel residues also served as template and carbon source, adding oxygen functionalities, which were found to benefit the catalytic performance of mechanochemically synthesized nanomaterials. The series of magnetic Cu-Fe@OP were tested in the oxidation of trans-ferulic acid towards vanillin, remarkably revealing a maximum vanillin yield of 82% for the sample treated at 200 °C.
URI
http://hdl.handle.net/10396/21284
Fuente
Nanomaterials 11(4), 1050 (2021)
Versión del Editor
http://dx.doi.org/10.3390/nano11041050
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