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采用反相微乳液法,合成了以PVP分散的磁性Fe3O4纳米粒子为核、SiO2为壳并复合有荧光标记物钌联吡啶的核壳型复合功能纳米粒子.在对该功能型二氧化硅复合纳米粒子进行TEM、荧光特性和磁性等特性表征的基础上,重点研究了水溶性高聚物PVP溶液对Fe3O4纳米粒子的分散性,并将其均匀的包入SiO2壳中,基于此研究了该功能型二氧化硅复合纳米粒子与青铜器之间的相互作用、以功能型复合纳米粒子为材料对青铜器腐蚀机理进行了在线、无损、实时监测以及将复合纳米材料从被分析体系中无损去除的方法,发展了适合于去除吸附于青铜器文物表面的功能型纳米粒子的新方法.这一研究结果为以该纳米粒子为基质构建适合于青铜器表面成分分析的纳米传感器奠定了基础.
The reversed-phase microemulsion method was used to synthesize core-shell composite functional nanoparticles with PVP-dispersed magnetic Fe3O4 nanoparticles and SiO2 as shell and complexing with fluorescent label ruthenium bipyridine. Based on the characterization of TEM, fluorescence and magnetic properties of nanoparticles, the dispersibility of water-soluble polymer PVP solution on Fe3O4 nanoparticles was studied emphatically, and the nanoparticles were uniformly encapsulated in SiO2 shell. Based on this, Functional silicon dioxide composite nanoparticles and bronze interaction between the functional composite nanoparticles for the corrosion mechanism of bronze on-line, non-destructive, real-time monitoring and composite nanomaterials from the analysis of non-destructive removal of the method , Developed a new method suitable for the removal of functional nanoparticles adsorbed on the surface of bronze artifacts.The results of this study laid the foundation for the use of the nanoparticles as a substrate for the construction of nanosensors suitable for the compositional analysis of bronze surfaces.