引用本文:
李坚, 石先阳. CdS/CdMoO4空心微球复合材料的化学沉淀法制备及光催化性能[J]. 环境化学, 2018, 37(10): 2283-2290
LI Jian, SHI Xianyang. Photocatalytic properties of CdS/CdMoO4 hollow microsphere composites synthesized by chemical precipitation method[J]. Environmental Chemistry, 2018, 37(10): 2283-2290

CdS/CdMoO4空心微球复合材料的化学沉淀法制备及光催化性能
李坚, 石先阳
安徽大学资源环境与工程学院, 合肥, 230601
摘要:
采用化学沉淀法制备了CdS/CdMoO4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/CdMoO4复合材料具有明显的空心微球结构,且其直径在1 μm左右,表现出优异的吸附性能.此外,CdMoO4良好的光生电子转移性能使得CdS/CdMoO4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.
关键词:    CdS/CdMoO4    空心微球    光催化   
Photocatalytic properties of CdS/CdMoO4 hollow microsphere composites synthesized by chemical precipitation method
LI Jian, SHI Xianyang
School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China
Abstract:
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.
Key words:    CdS/CdMoO4    hollow microsphere    photocatalysis   
收稿日期: 2017-11-20
基金项目: 国家自然科学基金(51278001)和国家水体污染控制与治理科技重大专项(2012ZX07103-001-02)资助.
石先阳,Tel:0551-63861970,E-mail:shixi381@163.com
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