In recent years, silver nanoparticles (Ag NPs) have been widely investigated due to their high electrical and thermal conductivity, excellent biocompatibility and relatively low cost in comparison to other noble metals such as Au, Pd or Pt [1–8]. These properties endow Ag NPsa variety of potential applications such as catalysis, biomedicines, and photoelectronic devices [9–14]. As to the applications in catalysis, AgNPs have been examined as possible candidates of catalysts for several important catalytic reactions, such as reduction of methylene blue (MB)and nitroaromatic compounds, selective oxidation of thiol and styrene [15–25]. However, the main drawback of Ag NPs as catalyst is that these metal NPs driven by their high surface energy are naturally prone to self-aggregation and sintering during the catalytic reaction, which will result in the reduction of the active surface area and seriously limit their practical applications [26,27]. To overcome these problems, considerable efforts and great achievements have been made to immobilize Ag NPs in appropriate solid supports, such as silica, activatedcarbon, carbon nanotubes, polymers and some composite materials[28–39]. Though these supported Ag catalysts have superior catalysis activities, the development of efficient and stable heterogeneous Ag catalysts still remains challenge.