A novel magnetically separable heterogeneous Au-Pd bimetallic catalyst was synthesized by anchoring palladium and gold onto amine-functionalized magnetite nanoparticles by a facile one-pot template-free method combined with a metal adsorption–reduction procedure. A highly efficient and recyclable heterogeneous bimetallic catalyst exhibits excellent catalytic activity for the selective reduction of carbon-carbon double in α,β-unsaturated ketones and various aromatic nitro compounds under a H2 atmosphere at room temperature . The catalyst was found to be highly stable and passes hot filtration test successfully. The catalyst was characterized by FTIR, AAS, XRD, SEM and TEM. In addition, the catalyst can be easily separated and recovered with an external permanent magnet, and the reuse experiment shows that it can be used consecutively five times without significant loss in catalytic activity.
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