Preparation and characterization of Fe 3 O 4 @SiO 2 @TiO 2 @Pd and Fe 3 O 4 @SiO 2 @TiO 2 @Pd–Ag nanocomposites and their utilization in enhanced degradation systems and rapid magnetic separation

Two new palladium catalysts immobilized on modified magnetic nanoparticles with titanium dioxide shells (Fe 3 O 4 @SiO 2 @TiO 2 @Pd and Fe 3 O 4 @SiO 2 @TiO 2 @Pd–Ag nanocomposites) were synthesized and characterized using XRD, SEM, TEM, VSM, EDS, DRS and IR techniques. These catalytic systems showe...

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Bibliographic Details
Published in:RSC advances 2016, Vol.6 (81), p.78043-78052
Main Authors: Khojasteh, Hossein, Salavati-Niasari, Masoud, Mazhari, Mohammad-Peyman, Hamadanian, Masood
Format: Article
Language:English
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Summary:Two new palladium catalysts immobilized on modified magnetic nanoparticles with titanium dioxide shells (Fe 3 O 4 @SiO 2 @TiO 2 @Pd and Fe 3 O 4 @SiO 2 @TiO 2 @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 Fe 3 O 4 @SiO 2 @TiO 2 @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.
ISSN:2046-2069
2046-2069
DOI:10.1039/C6RA13613C