Issue 90, 2015

Fabrication of Ag/γ-Fe2O3@TiO2 hollow magnetic core–shell nanospheres as highly efficient catalysts for the synthesis of β-enaminones

Abstract

Herein, we describe a method to prepare hollow magnetic mesoporous sphere catalysts (Ag/γ-Fe2O3@meso-TiO2). The core–shell strategy efficiently prevents the aggregation of Ag NPs in the high temperature calcination process and the leaching of Ag NPs for the catalytic reaction in the liquid phase. The catalyst is characterized by TEM, XRD and ICP-AES. Moreover, the catalyst exhibited improved activity for the synthesis of β-enaminones, and it could be easily recovered by an external magnet from the reaction mixture and recycled five times without any significant loss in activity.

Graphical abstract: Fabrication of Ag/γ-Fe2O3@TiO2 hollow magnetic core–shell nanospheres as highly efficient catalysts for the synthesis of β-enaminones

Supplementary files

Article information

Article type
Paper
Submitted
27 Jul 2015
Accepted
24 Aug 2015
First published
25 Aug 2015

RSC Adv., 2015,5, 73612-73618

Author version available

Fabrication of Ag/γ-Fe2O3@TiO2 hollow magnetic core–shell nanospheres as highly efficient catalysts for the synthesis of β-enaminones

H. Huo, X. Li, X. Zhou, L. Jiao, S. Zhao, L. Zhang, W. Li, S. Li and R. Li, RSC Adv., 2015, 5, 73612 DOI: 10.1039/C5RA14878B

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