One-step fabrication of ZnWO4 hollow spheres by nanoparticle aggregation and ripening in alcohol solution
One-step fabrication of ZnWO4 hollow spheres by nanoparticle aggregation and ripening in alcohol solution
复制标题
DOI：
10.1111/j.1551-2916.2006.01318.x
复制
发表时间：
2006-12-01
影响因子：
3.9
通讯作者：
Gao, Lian
中科院分区：
文献类型：
--
作者：
Huang, Jianhua;Gao, Lian
采用一步法合成了空心直径为450 nm、球外径为1.2 μ m的ZnWO_4球。实验研究表明，ZnWO 4球是通过纳米颗粒聚集和成熟形成的。此外，在反应体系中引入适量的水是获得空心ZnWO 4的关键。所得的ZnWO 4空心球在254 nm激发时，在350-550 nm范围内显示出蓝光发射，中心在460 nm附近。
A one-step method has been developed to synthesize ZnWO4 spheres with a hollow-core diameter of 450 nm and an outer spherical diameter of 1.2 mu m. Experimental investigation reveals that the ZnWO4 spheres are formed through nanoparticle aggregation and ripening. Furthermore, introduction of appropriate water quantity to the reaction system is a key to obtain hollow-core ZnWO4. The as-obtained ZnWO4 hollow spheres exhibit a blue emission in the range of 350-550 nm, centered around 460 nm when excited at 254 nm.