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采用化学浴法制备聚苯乙烯(PS)/CdS纳米核壳材料,在超声波的作用下采用化学浴法制备PS/CdS/ZnS纳米核壳材料,最后溶液刻蚀除去中心模板,得到中空的CdS/ZnS核壳材料。利用SEM、TEM、EDX、XRD和UV-Vis等测试手段对样品的形貌、成分、粒度、微观结构和吸光度等进行了表征。结果表明:该方法制备的CdS/ZnS纳米材料具有空心双壳层结构,颗粒大小均匀,内壳层厚度为85~100nm,外壳层厚度约为40nm,在可见光下具有良好的稳定催化效能,能够多次回收循环利用。
The PS / CdS nanoshell materials were prepared by chemical bath method, PS / CdS / ZnS nanoshell materials were prepared by chemical bath under the action of ultrasonic wave, and finally the center template was removed by solution etching to obtain hollow CdS / ZnS core-shell material. The morphology, composition, particle size, microstructure and absorbance of the samples were characterized by SEM, TEM, EDX, XRD and UV-Vis. The results show that the CdS / ZnS nanomaterials prepared by this method have a hollow double-shell structure with a uniform particle size. The thickness of the inner shell is 85-100nm and the thickness of the outer shell is about 40nm. The CdS / ZnS nanostructures have good catalytic activity under visible light. Repeated recycling.