摘要
采用双注控制沉积法(ControlledDouble-JetPrecipitation,CDJP)将反应物添加到含有SiO2的溶液中,通过直接的表面反应来制备单分散的SiO2/ZnO复合纳米粒子,并对其进行了表征。透射电镜(TEM)观察表明,SiO2表面有一层ZnO纳米颗粒或薄层。对复合纳米粒子SiO2/ZnO进行X射线衍射(XRD)分析,复合颗粒的衍射峰与单独的氧化锌的衍射峰完全一致。能量弥散X射线法(EDX)分析表明,复合颗粒中含有Zn、Si、O元素。荧光光谱表明有ZnO的吸收峰。
A new method for the preparation of co mposite nanoparticles SiO 2 /ZnO by the controlled double-jet pr ecipi￡-tation￡¨CDJP￡(c)technique is des cribed￡(r)The transmi ssion electron microscope￡¨TEM￡(c)images of SiO 2 /ZnO show that on the silica(SiO 2 ￡(c)surface the ZnO nanoparticles are coated as thin layers or nanoclusters,a nd this result depends on the reaction conditions￡(r)The powder X-ray diffraction ￡¨XRD￡(c)of the initial SiO 2 ￡ˉZnO powder yields diffraction peaks corresponding to the ZnO phase￡(r)The en ergy￡-dispersive X￡-ray￡¨EDX￡(c)analysis shows the presence of Zn,O and Si elemen ts￡(r)The fluorescence ph otograph shows a peak at 400nm,which is in accordanc e with the sole ZnO particle
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2002年第8期769-772,共4页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金资助项目(No.29881001
69971023)
