Recyclable Fe3O4@Tween20@Ag Nanocatalyst for Catalytic Degradation of Azo Dyes
- 348 Downloads
Silver nanoparticles supported on superparamagnetic iron oxide (SPION)-Tween20 nanocomposite were prepared by a combined polyol and chemical reduction routes. The morphology, composition and structure of Fe3O4@Tween20@Ag nanocatalyst were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy, energy dispersive X-ray spectroscopy, thermal gravimetric analyzer, and X-ray powder diffraction. In addition the magnetic properties were evaluated with vibrating sample magnetometry. It was found that Fe3O4@Tween20@Ag nanocatalyst could catalyze the degradation of various organic azo dyes and could easily be recovered from the reaction medium with external magnet. Also, the magnetic catalyst can be succesfully recycled and reused for at least five successive degradation cycles of methyl orange, methylene blue and Rhodamine B, confirming a high recycling efficiency. The cost effective and recyclable Fe3O4@Tween20@Ag nanocatalyst provide an novel nanomaterials architecture for environmental remediation applications.
KeywordsMagnetic nanocatalyst Silver nanoparticle Catalytic activity Azo dyes
This work was supported by Fatih University under BAP Grant no: P50021301-Y (3146), and in part by Swedish Research Council (VR-SRL 2013-6780).
- 23.A. Manikandan, E. Hema, M. Durka, MA Selvi, T. Alagesan, SA Antony, J. Inorg. Organomet. Polym. (2015). 10.1007/s10904-014-0163-4
- 36.S. Chikazumi, Physics of ferromagnetism, 2nd edn. (Clarendon Press, Oxford, 1997)Google Scholar
- 37.E. Blum, A. Cebers, M.M. Maiorov, Magnetic fluids (Walter de Gruyter, Berlin, 1997)Google Scholar