Ag/TiO₂/WO₃ nanoparticles with efficient visible light photocatalytic activity

Abstract

A simple strategy for synthesizing Ag decorated TiO₂/WO₃ composite nanoparticles by sol-gel method used as recyclable photocatalyst is introduced. The photocatalytic efficiency to the degradation of methyl blue (MB) by Ag/TiO₂/WO₃ nanoparticles is studied under ultraviolet-visible (UV-Vis) light irradiation. It shows that the photocatalytic efficiency of Ag/TiO₂/WO₃ photocatalyst achieves 96% in 20 min, which is 16 times higher than that of pristine TiO₂ at the same conditions. The Ag/TiO₂/WO₃ photocatalyst can still reach the degradation rate of 90% in the fifth degradation experiment, indicating a good stability and photocatalytic activity.

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