可见光响应的壳-核结构Ag/AgCl光催化剂性能

利用光化学还原法制备了Ag/AgCl壳-核结构的复合纳米粒子，以亚甲基蓝为模型降解物，研究了其可见光催化性能。结果表明，壳-核结构的Ag/AgCl纳米材料具有表面等离子效应，提高了其对可见光吸收和光催化活性。在可见光照射下，亚甲基蓝溶液浓度为10 mg·L^-1，催化剂用量10 mg·L^-1，光照60 min，亚甲基蓝降解率达95%，COD去除率为92%。

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 nanoparticles 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 photocatalytic 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.