Synthesis and characterization of the dual-modified composite Fe_3O_4/CdSe/CdS magnetic fluorescent compound
Year: 2013
Type: article
Abstract: Fe3O4 magnetic nanoparticles were prepared using hydrothermal coprecipitation process of ferric and ferrous ions.The as-prepared nanoparticles were further modified by γ-(2,3-epoxypropoxy)propytrimethoxysilane(KH-560) to obtain silicone modified Fe3O4 nanoparticles.Also,the water-soluble CdSe/CdS bearing amino have been synthesized using L-cysteine hydrochloride(L-Cys) as stabilizer,At last,CdSe/CdS were linked to Fe3O4 to form luminescent/magnetic bifunctional nanoparticles.The as-prepared composites with a typical diameter of 40nm show 21.287A·m2/kg of saturation magnetic susceptibility.Such material still retains a strong photoluminescence effect of CdSe/CdS quantum dots and also exhibits a typical superparamagnetic behavior of Fe3O4 nanoparticles.
Author: Yongjian Liu
Institution: Suzhou University of Science and Technology
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2370900481