摘要
采用化学沉淀法制备了CdS/CdMoO_4空心微球复合材料,通过透射电镜(TEM)、扫描电镜(SEM)、X射线衍射仪(XRD)、X射线光电子能谱分析仪(XPS)、荧光光谱(PL)等对该复合材料的结构、形貌及其光学和可见光光催化性能进行了表征.结果表明,所制备的CdS/CdMoO_4复合材料具有明显的空心微球结构,且其直径在1μm左右,表现出优异的吸附性能.此外,CdMoO_4良好的光生电子转移性能使得CdS/CdMoO_4空心微球复合材料亦表现出良好的催化性能和光稳定性.该复合材料在60 min内对亚甲基蓝光降解率达到了98.7%,且3次光催化实验重复性好.
CdS/CdMoO4 hollow microsphere composites were prepared using a chemical precipitation method. The structure,morphology and photocatalytic properties of these crystals were characterized by transmission electron microscopy（ TEM）, X-ray diffraction（ XRD）, X-ray photoelectron spectroscopy（ XPS）,scanning electron microscopy（ SEM） and photoluminescence spectroscopy（ PL）. The results showed that the as-prepared CdS/CdMoO4 composites displayed a well-defined hollow microsphere structure with a diameter of approximately 1μm,which possessed excellent adsorption properties. Furthermore,the good photocatalytic properties and photo-stability of CdS/CdMoO4 hollow microsphere composites were attributed to the good photogenic electron transfer performance of CdMoO4. The degradation rate of methylene bule by the composites was 98.7% under visible light irradiation and a good repeatability in photocatalytic performance was observed during the three cycles.
作者
李坚
石先阳
LI Jian SHI Xianyang(School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China)
出处
《环境化学》
CAS
CSCD
北大核心
2018年第10期2283-2290,共8页
Environmental Chemistry
基金
国家自然科学基金(51278001)
国家水体污染控制与治理科技重大专项(2012ZX07103-001-02)资助~~
