Titania hollow spheres with nanometer size were prepared by template methodemploying polystyrene (PS) as template and tetrabutyl titanate (TBOT) as titaniumsource. The titania hollow spheres were characterized with XRD, FESEM, TEM, BET.The photocatalytic activity of titania hollow spheres was evaluated by UV-Visabsorption spectra and degredation of benzene under UV irradiation. The main resultsare as follows:
1. PS nanoshperes were synthesized by emulsifier-free emulsion polymerization.Reacted at70°C fo...