| 초록 |
The fabrication of polymeric microspheres having a porous structure have gained great attention for their promising potentials in a variety of application including chromatography, scavenging, and catalysis. In addition, TiO2 nanoparticles (NPs) has been reported as one of the most efficient photocatalyst because of their high stability and low toxicity. In this work, we immobilized TiO2 NPs onto the surface of porous sulfonated polystyrene (P-SPS) to enhance their photocatalytic activity. Firstly, the P-SPS microspheres which possess interconnected pores were prepared through a swelling-osmosis process. Subsequently, we synthesized the TiO2 NPs by the sol-gel process of precursor Titanium (IV) isopropoxide. The preformed TiO2 NPs were immobilized on the surface of P-SPS microspheres via electrostatic interaction. Furthermore, the photocatalytic performance of these composites was evaluated using the degradation of Rhodamine B as a model reaction. |
