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Título: | Ultra- fast microwave-assisted reverse microemulsion synthesis of Fe3O4@SiO2 core–shell nanoparticles as a highly recyclable silver nanoparticle catalytic platform in the reduction of 4- nitroaniline |
Autor: | Lu, Changyong; Puig Molina, Teresa CSIC ORCID ; Obradors, Xavier CSIC ORCID; Ricart, Susagna CSIC ORCID; Ros, Josep | Palabras clave: | Iron-oxide nanoparticles Magnetic nanoparticles Ag nanoparticles Silica Water Nanostructures Nanocomposites 4-nitrophenol Nanocrystals Nanomaterials |
Fecha de publicación: | 12-sep-2016 | Editor: | Royal Society of Chemistry (UK) | Citación: | RSC Advances 6(91): 88762-88769 (2016) | Resumen: | A novel microwave-assissted reverse microemulsion method was applied to prepare Fe3O4@SiO2 core– shell nanoparticles rapidly for the first time. The morphology of the core–shell structure is controlled by tunning the reaction parameters. Nanoparticles with a very thin SiO2 coating layer (2.5 nm) containing a single Fe3O4 nanoparticle (8–9 nm) are produced. These core–shell nanoparticles can be used as solid catalytic supports for Ag nanoparticles and applied in 4-nitroaniline reduction. Transmission electron microscopy showed that the core–shell nanoparticles were decoracted with Ag nanoparticles of 7 nm in diameter. The crystal structures of the Fe3O4 and Ag nanoparticles were confirmed by X-ray diffraction. These Ag/Fe3O4@SiO2 nanocomposites showed high catalytic efficiency and recycling properties even after 20 times of repetation. | Versión del editor: | http://dx.doi.org/10.1039/C6RA19435D | URI: | http://hdl.handle.net/10261/150231 | DOI: | 10.1039/C6RA19435D | ISSN: | 2046-2069 |
Aparece en las colecciones: | (ICMAB) Artículos |
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Lu_RSCAdv_2016_editorial.pdf | Artículo principal | 2,14 MB | Adobe PDF | Visualizar/Abrir |
Lu_RSCAdv_2016_suppl_editorial.pdf | Información complementaria | 618,94 kB | Adobe PDF | Visualizar/Abrir |
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