초록 |
In this study, cross-linked polystyrene nano-sized beads were synthesized by emulsion polymerization, and the resulting beads were subsequently coated by polyaniline via oxidative polymerization of aniline. Polymer beads with outer diameter in the range of 200-300 nm were used for the further study. The surface morphologies of the polymer beads before and after the coating were studied by Field Emission Scanning Electron Microscopy (FESEM) and Transmission electron microscopy (TEM). The adsorption efficiency of the polymer beads toward silver ions was studied at various different conditions: temperature, pH, concentration of silver ion, and contact time. The experimental results will be presented in details. |