Fe 3 O 4 @Tween20@Ag Magnetically Recyclable Nanocatalyst for Various Hydrogenation Reactions
DOI: 10.1007/S10904-014-0138-5
关键词: Polyvinylpyrrolidone 、 Spectrophotometry 、 Magnetic separation 、 Scanning electron microscope 、 Infrared spectroscopy 、 Chemistry 、 Magnetic core 、 Inorganic chemistry 、 Silver nanoparticle 、 Catalysis
摘要: In this paper, for the first time, we describe a facile method synthesis of Ag-deposited Tween-20 coated Fe3O4 magnetic nanoparticles, which have core and active silver nanoparticles an outer shell using polyvinylpyrrolidone as reductant AgNO3 in ethanol. The synthesized nanocatalyst was characterized by X-ray diffraction, Fourier trasform infrared spectra, Transmisson scanning electron microscopy, vibration sample magnetometer been used different hydrogenation reactions containing 2-nitroaniline, 3-nitroaniline, 4-nitroaniline, 4-nitrophenol monitoring UV–Vis spectrophotometry. obtained product showed narrow size distribution good catalytic activity towards various hyrogenation reactions. This catalyst could also be easily separated separation reused many times. .
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