Abstract
In this paper, a novel magnetic PdRu alloy-coated palygorskite(Pal)-based nanocatalyst was successfully prepared, which was explored for the hydrogenation reaction of nitroarenes and organic dyes. The morphology and structure details of Pal-Fe3O4-PdRu were revealed by different modern characterization methods. The metal loading for the Pal-Fe3O4-PdRu was 16.81wt.%, and the atomic ratio of Pd:Ru was 0.65:0.35. In comparison with the monometallic Pal-Fe3O4-Pd or Pal-Fe3O4-Ru, the designed Pal-Fe3O4-PdRu nanocatalyst showed the improved performance in the reduction of 4-nitrophenol, where sodium borohydride was used as reducing agent. More importantly, this catalyst still showed good recycle-ability and reusability in the hydrogenation of several other nitroarenes and azo dyes, which indicated the potential applications in environmental issues.
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