Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Korea.
Molecules. 2014 Jan 7;19(1):699-712. doi: 10.3390/molecules19010699.
As hybrid nanostructures have become more important in many fields of chemistry, Ag nanoparticles (NPs) are being increasingly immobilized onto Fe3O4 microspheres in situ. Structural characterization reveals that the Ag NPs are uniformly immobilized in the Fe3O4 microsphere-based supports. Moreover, Ag NPs are more stable in the hybrid structure than in the naked state and show high catalytic activity for the reduction of nitro compounds and hydration of nitriles to amides in water. The Fe3O4 microspheres were recycled several times using an external magnet.
随着杂化纳米结构在化学的许多领域变得越来越重要，Ag 纳米粒子（NPs）越来越多地被原位固定在 Fe3O4 微球上。结构表征表明，Ag NPs 均匀地固定在基于 Fe3O4 微球的载体中。此外，Ag NPs 在杂化结构中比在裸露状态下更稳定，并表现出对硝基化合物还原和腈水合反应为酰胺的高催化活性。使用外部磁铁可以多次回收 Fe3O4 微球。
