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采用静电纺丝技术及煅烧法制备了氧化锌纳米纤维,然后采用水热法将银纳米颗粒负载到了氧化锌纳米纤维表面.利用X射线衍射(XRD)、X射线光电子能谱(XPS)、能量色散X射线光谱(EDX)、扫描电子显微镜(SEM)及透射电子显微镜(TEM)等技术对合成的Ag/ZnO纳米纤维的结构和组成进行了表征.SEM结果表明,直径在5~100 nm之间的银纳米颗粒附着在直径在80~330 nm之间的氧化锌纤维表面形成了异质结构.以常见的有机污染物甲基橙、亚甲基蓝和罗丹明B等为降解底物,对Ag/ZnO纳米纤维的光催化性能进行了表征.结果表明,负载银纳米颗粒后,复合催化剂的光催化性能明显提高.
Zinc oxide nanofibers were prepared by electrospinning and calcination method, and silver nanoparticles were supported on the surface of zinc oxide nanofibers by hydrothermal method. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) The structure and composition of the synthesized Ag / ZnO nanofibers were characterized by EDX, SEM and TEM.The SEM results showed that the diameter of the Ag / ZnO nanofibers was about 5 ~ 100 nm Between the silver nanoparticles attached to the surface of zinc oxide fibers with a diameter between 80 and 330 nm formed a heterogeneous structure.Using common organic pollutants methyl orange, methylene blue and rhodamine B as substrates for degradation, Ag / The photocatalytic properties of ZnO nanofibers were characterized.The results showed that the photocatalytic activity of the composite catalyst was significantly improved after silver nanoparticles were loaded.