Si/Pd nanostructure with high catalytic activity in degradation of eosin Y

Si/Pd nanostructure was obtained by preparing Pd nanoparticles on the surface of SiNWs, and employed as catalyst in the degradation of eosin Y in the presence of sodium borohydride, which demonstrated high catalytic activity and could be reused. The reaction rate of eosin Y degradation with Si/Pd nanostructure catalyst enhanced ca. 24 times compared with unsupported Pd and ca. 4 times compared with polymer-supported Pd within eosin Y concentration from 5.0 x 10(-5) M to 4.5 x 10(-5) M. The Si/Pd nanostructure still showed high catalytic activity after five times recycle during the whole degradation. (C) 2008 Elsevier Ltd. All rights reserved.