The study of silver-supported phenolic resin-based spherical activated carbon

Silversupported activated carbons, which have both antibacterial and adsorption abilities, are usually obtained by a solution impregnation method. In the present work, silversupported phenolic resinbased spherical activated carbons were prepared by blending silver nitrate and a polymer before spherulization, carbonization and activation, which were characterized by atom absorption spectroscopy (AAS), Xray diffraction (XRD), scanning electron microscopy (SEM) and N2 adsorption. Results show that the addition of silver increases the activation burnoff and enhances the development of pores due to its catalytic effect. However, it has little influence on mesoporosity. Spherical mesoporous activated carbon with antibacterial ability can be obtained by adding both silver nitrate and polyethylene glycol (PEG).