摘要
以乙酸锌、四氯化锡、氢氧化钠为原料,在200℃用L-赖氨酸辅助合成纳米片组装的锡酸锌(Zn2SnO4)空心八面体分级结构。采用XRD、FESEM、TEM、HRTEM等对样品进行了表征,结果表明产物为立方相的Zn2SnO4,单个八面体的棱长在1～2μm,并且表面以及棱上长有许多尺寸在200～400nm的纳米片。此外,结果还表明,氢氧化钠和L-赖氨酸的加入量对八面体形状的形成起到了决定性的作用。产物的室温光致发光谱图说明所制备的产物在500～600nm有很强的发光性能。
Hollow Octahedral Zn2SnO4（ZTO） hierarchical structures were hydrothermally synthesized starting from Zn（Ac）2,SnCl4 and L-lysine in NaOH solution at 200 ℃. The XRD result indicates a face-centered cubic phase for the as-prepared octahedral ZTO product with lattice constant a of 0.865 0 nm. Field-emission scanning electron and transmission electron microscopy results reveal that the octahedra are indeed hollow with an edge size of 1～2 μm and assembled by nanosheets（d： 200～400 nm） on the surface and edge. Results also demonstrate that the adding amount of NaOH and L-lysine has an immense function in the morphology control of octahedral ZTO hierarchical structures. The photoluminescences of the as-fabricated ZTO products with different shapes all display a broad strong green emission band at 550～600 nm but different in intensity at room temperature.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2010年第6期939-945,共7页
Chinese Journal of Inorganic Chemistry
基金
the financial support from 973 Project of China (Grant No. 2005CB623601)
National Natural Science Foundation of China (No. 20901072)
China Postdoctoral Science Foundation (20090460723)~~
