Ag/Bi12O17Cl2纳米复合材料的制备及光催化性能研究

Preparation and photocatalytic properties of Ag/Bi12O17Cl2 nanocomposites

采用简单的液相沉淀法制备出了Ag/Bi12O17Cl2纳米复合材料,利用X射线衍射(XRD)、X射线光电子能谱(XPS)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、固体紫外-可见分光光度计(UV-Vis)等对所得产物的晶相和微观形貌进行表征分析。研究了不同摩尔量的Ag的添加对Bi12O17Cl2光催化活性的影响,并对其光催化机理进行了探索。实验结果表明,Ag的添加量为0.3 mol/L时,所得Bi12O17Cl2样品光催化性能最好,见光2 h后,对罗丹明B(RhB)光催化降解率可以达到97.14%。

Ag/Bi12O17Cl2 nanocomposites were prepared by a simple liquid phase precipitation method.X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),scanning electron microscopy(SEM),transmission electron microscopy(TEM),and solid ultraviolet visible spectrophotometer(Uv-vis)were used to characterize the crystal phase and morphology of the products.The effect of different molar amount of Ag on the photocatalytic activity of Bi12O17Cl2 was studied,and the photocatalytic mechanism was explored.The experimental results showed that when the amount of Ag added was 0.3 mol/L,the photocatalytic performance of Bi12O17Cl2 sample was the best.After 2 hours of light exposure,the photocatalytic degradation rate of Rhodamine B(RhB)could reach 97.14%.