Photocatalytic properties of visible light responsive shell-core type Ag/AgCl catalyst

Using AgCl nanoparticles as the crystal seeds and in the presence of trisodium citrate,Ag/ AgCl core-shell composite nanopartieles were synthesized by photochemical reduction method and their photocatalytic properties were investigated using methylene blue degradation as the model reaction.The results showed that the Ag/AgCl nanoparticles exhibited surface plasma resonance effect,effectively enhancing absorption of visible light and the photocatalytie activity,methylene blue degradation rate of 95% and COD removal rate of 92% were obtained under the following condition:catalyst dosage 10 mg·L~(-1), methylene blue concentration 10 mg·L~(-1),visible light irradiation for 60 min.