Aqueous synthesis of CdTe@FeOOH and CdTe@Ni(OH)2 composited nanoparticles

Two kinds of bi-functional nanomaterials, CdTe@FeOOH and CdTe@Ni(OH)2, were synthesized in water phase. In the synthesis, using the luminescent CdTe nanocrystals (NCs) as a core, Fe3+ (Ni2+) was added to CdTe NCs aqueous solution and slowly hydrolyzed to deposit a layer of hydroxide onto the luminescent CdTe NCs in the presence of stabilizer. TEM, XRD, XPS, UV, fluorescence spectrometer and physical property measurement system (PPMS) were used to characterize the final products, and the results showed that the as-prepared nanoparticles with core/shell structure exhibited certain magnetic properties and fluorescence.