Vanadium silicate (EVS) is a vanadium-substituted form of titanosilicate that has a high potential for use as a sorbent for mercury removal. In the present study, EVS with supported silver nanoparticles (EVS-Ag100) as the catalytic sorbent was synthesized for elemental mercury (He degrees) capture. The physical and chemical properties of the sorbents were investigated. The raw EVS exhibited a poor Hg degrees capture capacity (7.7 mu g g(-1)), because most of the vanadium species in the structure of EVS were V. The loading of the silver could significantly enhance the Hg degrees capture capacity (63.4 mu g g(-1)). EVS-Ag100 exhibited a superior He capture performance at temperatures of approximately 150 degrees C. Silver nanoparticles that formed on the EVS were the active sites. In addition, the vanadium species of EVS-Ag100 exhibited higher Hg degrees oxidation activity than those in the framework of raw EVS. The XPS results revealed the activation of the vanadium species by the silver nanoparticles. After the capture of Hg degrees in the presence of O-2, more V5+ was observed on the surface of EVS-Ag100. Exposure of EVS-Ag100 to a continuous simulated flue gas at 150 degrees C with a gas hourly space velocity of 220,000 h(-1) led to Hg degrees removal efficiency of > 96% in a 1 h test.