Journal
MATERIALS LETTERS
Volume 220, Issue -, Pages 24-27Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2018.02.100
Keywords
Fe3O4-coated Ag; Nanocomposites; Functional; 4-nitrophenol
Funding
- Project of Innovation for Enhancing Guangdong Pharmaceutical University
- Provincial Experimental Teaching Demonstration Center of Chemistry & Chemical Engineering
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In this study, a core-satellite nanocomposite, termed Ag@Fe3O4 consisting of Ag particles as the inner core and many superparamagnetism Fe3O4 nanoparticles (NPs) as the outer surface, synthesized by a facile and efficient polyol method. The Ag@Fe3O4 nanocomposites were characterized using X-ray diffraction, X-ray photoelectron spectroscopy and Transmission electron microscopy measurements. The results indicated that Ag particles were successfully coated with Fe3O4 NPs aDnd showed excellent conversion efficiency of more than 99% within 8 min in the catalytic reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP). Furthermore, the magnetically functionalized Ag nanocomposites could be easily recovered with an external magnet, which retained good activity and stability after five cycles. (C) 2018 Elsevier B.V. All rights reserved.
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