Ag/TiO_(2)/WO_(3)nanoparticles with efficient visible light photocatalytic activity

摘要

A simple strategy for synthesizing Ag decorated TiO_(2)/WO_(3)composite nanoparticles by sol-gel method used as recyclable photocatalyst is introduced.The photocatalytic efficiency to the degradation of methyl blue(MB)by Ag/TiO_(2)/WO_(3)nanoparticles is studied under ultraviolet-visible(UV-Vis)light irradiation.It shows that the photocatalytic efficiency of Ag/TiO_(2)/WO_(3)photocatalyst achieves 96%in 20 min,which is 16 times higher than that of pristine TiO;at the same conditions.The Ag/TiO_(2)/WO_(3)photocatalyst can still reach the degradation rate of 90%in the fifth degradation experiment,indicating a good stability and photocatalytic activity.