【摘要】 结合光还原法和物理混合的方法合成了新型光催化Ag/Bi₅O₇I/g-C₃N₄复合材料.利用X-射线衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、傅里叶红外光谱（FT-IR）、比表面积（BET）、紫外-可见漫反射光谱（DRS）、光致发光光谱（PL）等方法对样品的结构、形貌和光学性能进行了研究.光催化实验结果表明，Ag/Bi₅O₇I/g-C₃N₄复合材料的可见光降解能力比纯Bi₅O₇I,g-C₃N₄和Bi₅O₇I/g-C₃N₄复合材料明显提升.其中样品1wt%-Ag/Bi₅O₇I/g-C₃N₄性能最好，在60 min内对甲基橙（MO）的降解效率达到96.4%.更多还原

【Abstract】 The novel photocatalytic Ag/Bi₅O₇I/g-C₃N₄ composites were synthesized by the photoreduction and physical mix methods. The structure, morphology and optical properties of the samples were investigated by X-ray diffraction（XRD）, Scanning electron microscopy（SEM）, Transmission electron microscopy（TEM）, Fourier transform infrared spectroscopy（FT-IR）, Specific surface area（BET）, UV-visible diffuse reflectance spectroscopy（DRS） and Photoluminescence spectroscopy（PL）et.al. The results of photocatalytic experiments showed that the photocatalytic activity of the Ag/Bi₅O₇I/g-C₃N₄ composite was significantly higher than that of pure Bi₅O₇I, pure g-C₃N₄ and Bi₅O₇I/g-C₃N₄composite. Among them, the 1-Ag/Bi₅O₇I/g-C₃N₄ sample had the best photocatalytic performance, which could degrade 96.4% methyl orange（MO） within 60 min.更多还原