Si@UiO-66(Zr)复合材料的制备、表征及荧光性质研究  

Si@UiO-66(Zr)composites:synthesis,characterization and spectroscopic property

作　　者：伍霞 张妞妞 楚玉杰 吕康佳 王冠[1] WU Xia;ZHANG Niuniu;CHU Yujie;LV Kangjia;WANG Guan(College of Chemistry and Molecular Sciences,Henan University,Kaifeng 475004,Henan,China)

机构地区：[1]河南大学化学与分子科学学院,河南开封475004

出　　处：《化学研究》2023年第3期199-203,共5页Chemical Research

基　　金：国家自然科学基金资助项目(21901061);河南省科技项目(222102320166)。

摘　　要：超小尺寸的硅量子点具有稳定的发光特性、生物相容性以及广泛的应用领域而受到关注。我们采用简单的低温水热合成方法和廉价的反应物。首先将金属有机框架(MOFs)粉末浸泡在硅烷溶液中,加入葡萄糖作为还原剂在低温条件下反应数小时,制备Si@MOFs复合纳米晶。选择稳定UiO-66(Zr)作为反应载体提供硅量子点(Si QDs)的生长位点,成功制得了Si@UiO-66(Zr)复合物。对目标化合物进行了荧光性质的研究,结果表明在340 nm激发波长下,该化合物表现出强烈的荧光性能。该工作对拓展Si QDs的应用领域具有重要意义。Ultra-small size silicon quantum dots(Si QDs)have attracted great attention because of their stable luminescence properties,biocompatibility,and wide range of applications.Si@MOFs nanocomposites were prepared by simple low-temperature hydrothermal synthesis and inexpensive reactants,which metal-organic framework(MOFs)powder was immersed in silane reagent,and glucose was used as a reducing agent to react for several hours.Herein,the Si@UiO-66(Zr)composites were successfully prepared by selecting stable UiO-66(Zr)as the reaction carrier to provide the growth site of Si QDs.In addition,the fluorescence test showed that the compound had strong fluorescence properties at 340 nm excitation.This work is of great significance in extending the application field of Si QDs.

关 键 词：硅量子点 UiO-66(Zr) 复合材料 荧光性质 

分 类 号：O613[理学—无机化学]