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Issue 81, 2016
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Preparation and characterization of Fe3O4@SiO2@TiO2@Pd and Fe3O4@SiO2@TiO2@Pd–Ag nanocomposites and their utilization in enhanced degradation systems and rapid magnetic separation

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Abstract

Two new palladium catalysts immobilized on modified magnetic nanoparticles with titanium dioxide shells (Fe3O4@SiO2@TiO2@Pd and Fe3O4@SiO2@TiO2@Pd–Ag nanocomposites) were synthesized and characterized using XRD, SEM, TEM, VSM, EDS, DRS and IR techniques. These catalytic systems showed high activity in the photodegradation of rhodamine B under UV irradiation. The activity of these catalysts was compared and the results showed a higher activity for the Fe3O4@SiO2@TiO2@Pd–Ag nanocomposite due to a synergic effect between silver and palladium. The supported catalysts have the advantage of being completely recoverable with the simple application of an external magnetic field.

Graphical abstract: Preparation and characterization of Fe3O4@SiO2@TiO2@Pd and Fe3O4@SiO2@TiO2@Pd–Ag nanocomposites and their utilization in enhanced degradation systems and rapid magnetic separation

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Article information


Submitted
25 May 2016
Accepted
04 Aug 2016
First published
04 Aug 2016

RSC Adv., 2016,6, 78043-78052
Article type
Paper

Preparation and characterization of Fe3O4@SiO2@TiO2@Pd and Fe3O4@SiO2@TiO2@Pd–Ag nanocomposites and their utilization in enhanced degradation systems and rapid magnetic separation

H. Khojasteh, M. Salavati-Niasari, M. Mazhari and M. Hamadanian, RSC Adv., 2016, 6, 78043
DOI: 10.1039/C6RA13613C

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