| 具有三维阵列结构的树枝晶CdS的制备及生长机理研究 | |
| Fabrication of Three-Dimensional Arrayed CdS Dendrites and Its Growth Mechanism | |
| 摘要: 采用电沉积和溶剂热相结合的方法，以树枝状金属Cd颗粒为模板和前驱体，在乙二胺溶剂中以六亚甲基四胺（HMTA）为表面修饰剂，制备出具有三维阵列结构的树枝晶CdS。利用X射线衍射仪（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）结合X射线能谱仪（EDS）等对样品的物相、形貌、元素组分和结构进行了分析。结果表明：在溶剂热反应过程中，当不加入HMTA时，得到的产物是无序的CdS纳米线；而在HMTA的作用下，则生成的是具有三维阵列结构的树枝晶CdS；通过分析溶剂热反应过程中的化学反应，并结合产物形貌演变规律，提出了具有三维阵列结构的树枝晶CdS的形成机理。光催化性能测试表明具有三维树枝晶CdS纳米阵列在可见光照射下表现出良好的光催化活性。 | |
| 关键词: 树枝晶CdS 三维阵列结构 六亚甲基四胺 电沉积 溶剂热 | |
| 基金项目: 山西省科技创新重点团队（No.2012041011）、国家国际科技合作专项项目（No.2011DFA52290）、国家自然科学基金（No.21176169）、山西省研究生优秀创新项目（No.20133033）、校青年基金（No.2013Z033）及校研究生创新基金（No.2013A020）资助项目。 | |
| Abstract: Through a combination of electrodeposition and subsequent solvothermal reaction, three-dimensional (3D) arrayed CdS dendrites were fabricated in ethanediamine solvent using branched Cd as the template and precursor, and hexamethylenetetramine (HMTA) as a surface modifier. The obtained product was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), electron microscopy transmission (TEM) and energy dispersive spectrometer (EDS). The results indicate that the morphology has been changed from disordered nanowires to 3D arrayed dendrites with addition of HMTA in solvothermal process. Finally, by analyzing of the chemical reaction during the whole reaction process and combining with the morphology evolution of products, a possible formation mechanism for 3D arrayed CdS dendrites were proposed. Photocatalysis test results show that the 3D arrayed CdS dendrites exhibit good photocatalytic activity under visible light illumination. | |
| Keywords: CdS Dendrites tree-dimensional arrays hexamethylenetetramine electrodeposition solvothermal | |
| 投稿时间：2013-12-30 修订日期：2014-04-04 | |
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| 申倩倩,田赟,薛晋波,米阿敏,贾虎生,许并社.具有三维阵列结构的树枝晶CdS的制备及生长机理研究[J].无机化学学报,2014,30(8):1839-1844. | |
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