中文摘要：

采用光还原法制备了Ag/TiO2催化剂,通过X射线衍射（XRD）、扫描电子显微镜（SEM）、场发射透射电子显微镜（TEM）、N2吸附-脱附（BET）和X射线光电子能谱（XPS）等测试手段对催化剂自身结构、形貌和孔结构等性质进行表征,并研究其对亚甲基蓝的光催化性能。结果表明,Ag的沉积能够大幅提高催化剂的光响应度,大大提高光催化活性。当Ag的摩尔分数为3%时,在可见光照射90 min后,催化剂对亚甲基蓝的脱色率达到78.52%。

英文摘要：

An Ag/TiO2 catalyst was prepared via a photoreduction method after hydrothermal process. To study the properties such as pore structure and morphology, the prepared samples were characterized by X-Ray diffrac- tion （XRD） , scanning electron microscopy （SEM） , transmission electron microscopy （TEM） , N2 adsorption- desorption isotherm （BET）, and X-Ray photoelectron spectrometry （XPS）. The results of the photocatalytic ex- periments indicate that photocatalytic activity is improved after doping with Ag;78.52% of methylene blue is re- moved by 3% Ag/TiO2 catalyst in 90 rain under visible light.