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A luminescent superparamagnetic nanocomposite with an Fe 3 O 4-SiO 2-CdS structure is synthesized.Coated with a silica shell,Fe 3 O 4 nanoparticles and CdS quantum dots (QDs) are successfully assembled together.Analysed from the test results of X-ray diffraction (XRD),transmission electron microscopy (TEM),high resolution transmission electron microscopy (HRTEM),hysteresis loop,and photoluminescence (PL) spectrum,these nanocomposites exhibit superparamagnetic and photoluminescent properties.
A luminescent superparamagnetic nanocomposite with an Fe 3 O 4-SiO 2-CdS structure was synthesized. Coated with a silica shell, Fe 3 O 4 nanoparticles and CdS quantum dots (QDs) are successfully assembled together. Analysed from the test results of X- ray diffraction (XRD), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), hysteresis loop, and photoluminescence (PL) spectrum, these nanocomposites exhibit exhibit superparamagnetic and photoluminescent properties.