| 溶剂热合成多级结构的Cu3SnS4月季花状微球 |
| Solvothermal Synthesis of Hierarchical Structured Chinese Rose-Shaped Cu3SnS4 Microspheres |
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| 摘要: 以CuCl2·2H2O、SnCl2和硫脲为原料，在乙二醇溶剂热条件下，制得具有多级结构的月季花状Cu3SnS4微球。粉体用XRD、XPS、FESEM、TEM、UV-Vis和PL进行了表征及光学性能测试。结果表明：粉体Cu3SnS4产品为四方相结构的月季花状微球，球直径约7~10 μm，结构稳定性好。微球由一定厚度的片状花瓣从同一成核中心向四周辐射生长组装而成，而花瓣则是由具有单晶结构的纳米薄片通过范德华力堆叠起来的。粉体的室温光致发光测试表明在紫外区出现2个发射带，可能与花球的多级结构有关。并对纳米片-花瓣-微球三级结构的组装机制进行了初步探讨。 |
| 关键词: Cu3SnS4 月季花球 溶剂热合成 |
| 基金项目: |
| Abstract: Using CuCl2·2H2O, SnCl2 and NH2CSNH2 as starting materials, hierarchical structured Cu3SnS4 chinese rose-shaped microspheres have been synthesized by an ethylene glycol (EG) solvothermal process. The as-obtained powder was characterized by XRD, XPS, FESEM, TEM, UV-Vis and PL. The experimental results indicate that the Cu3SnS4 Chinese rose-shaped microspheres with the diameters of 7~10 μm are of tetragonal phase and good structural stability. The single flower-like microsphere is assembled by many nanopetals with certain thickness radiating from the same nuclei center. The single petal is formed via stacking of thin nanoflakes with each other through Van der Waals force. The room temperature PL spectrum shows two emission bands in the ultraviolet region, which may be associated with hierarchical structure of the microspheres. A possible mechanism for assembling nanoflake-petal-microsphere tertiary structure is preliminary discussed. |
| Keywords: Cu3SnS4 chinese rose-shaped microspheres solvothermal synthesis |
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| 胡寒梅,邓崇海,孙 梅,张克华.溶剂热合成多级结构的Cu3SnS4月季花状微球[J].无机化学学报,2010,26(7):1189-1194. |
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