Synthesis of bi-phase dispersible core-shell FeAu@ZnO magneto-opto-fluorescent nanoparticles.
作者： Xue-Mei Li , Hong-Ling Liu , Xiao Liu , Ning Fang , Xian-Hong Wang
DOI: 10.1038/SREP16384
关键词: Coercivity 、 High-resolution transmission electron microscopy 、 Phase (matter) 、 Ethylene glycol 、 Nanoparticle 、 Superparamagnetism 、 Chemical engineering 、 Nanostructure 、 Materials science 、 Surface plasmon resonance
摘要: Bi-phase dispersible core-shell FeAu@ZnO magneto-opto-fluorescent nanoparticles were synthesized by a modified nanoemulsion process using poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (PEO-PPO-PEO) as the surfactant. The morphology and crystal structure of studied TEM/HRTEM XRD. manifest soft ferromagnetic and/or near superparamagnetic behavior with small coercivity ~19 Oe at room temperature. corresponding magnetic hysteresis curves elucidated Langevin equation. FTIR study confirms PEO-PPO-PEO molecules on surface nanoparticles. UV-vis PL results reveal well-behaved absorption bands including plasmon resonance multiple visible fingerprint photoluminescent emissions dispersed in both hydrophilic hydrophobic solvents. Moreover, processes solvent dispersion-collection demonstrated for application readiness such nanostructures.
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