Antibacterial Activity and Electrical Properties of Gold Nanoparticle Doped Ceria-Rice Husk Silica (Au/Ce-Silica) Nanocomposites Derived From Biomass

The present study deals with synthesis and characterization of gold doped in ceria-silica, derived from rice husk silica biomass materials. Large amount of silica recovered from waste rice husk silica was utilized. The silica materials derived from waste product can be used as low cost supporting material for potential applications such as catalytic oxidations and low-k dielectric material development. Gold doping on ceria-mixed silica derived from rice husk is carried out by an in situ method (Au/Ce-Silica-A) as well as by co-precipitation method (Au/Ce-Silica-B). The physicochemical characterization and antibacterial activity of as prepared material have been studied.