纳米硫化镉的制备、表征及其光催化性能研究

Preparation and characterize of cadmiun sulphide nanoparticles and research on its photocatalytic activity

以CdCl2和Na2S为主要原料，制备了纳米CdS颗粒，通过X射线衍射（XRD）和扫描电镜（SEM）分析其晶型和粒径，通过紫外-可见漫反射的表征，计算其带隙能，并用BET法测定其比表面积．通过对CdS固体的红外光谱的分析，研究颗粒的表面状况。将制备的纳米CdS颗粒用于亚甲基蓝的光催化降解反应，通过空白实验和暗反应实验的对比证明，自制的纳米CdS颗粒具有良好的光催化性能．最后还通过多次实验证明了自制Cds具有持久的光催化寿命．

Using CdCl2 and Na2S to synthesize cadmiun sulphide nanoparticles. The nanoparticles were characterized by XRD, SEM, UV-Vis, BET and IR spectrum. Research on the process of photocatalytic decomposition of methylene blue. The results of vacancy study and dark study show that cadmiun sulphide is a very efficient photocatalyst and it is durable in repetition.