Magnetic properties of these materials are strongly influenced by colloidal dispersion and particle size. Superparamagnetic iron oxide nanoparticles (SPIONs) in the form of magnetite (Fe 3O 4) and maghemite (γ-Fe 2O 3) have been commonly used for this purpose. Magnetic nanoparticles create tremendous interests largely because of their unique properties towards biomedical applications for cancer treatment that combine a targeted drug delivery and hyperthermia. A detailed physicochemical characterization of the microstructure, magnetic and fluorescence properties of the synthesized hybrid nanoparticles is provided. Further, covalently functionalized core-shell nanoparticles were coated with the amorphous carbon nitride (CN x) generated by an in-situ solution-based chemical reaction of cyanuric chloride with lithium nitride.
#Core shell nanostructures free#
The method utilizes the organic acyl peroxide of dicarboxylic acid (succinic acid peroxide) as a non-oxidant functional free radical precursor for functionalization. Superparamagnetic core-shell nanoparticles were used as the template material in the synthesis, where the carbon shell was functionalized through one-step free-radical addition of alkyl groups terminated with carboxylic acid moieties. The combination of magnetic and fluorescent properties of core-shell x nanoparticles opens opportunities for their application as sensors and magnet manipulated reusable photocatalysts. x also exhibits photocatalytic activities for organic dye degradation comparable to pure amorphous CN x with reusability through magnetic separation. The prepared x hybrid nanoparticles were found to possess multifunctionality by exhibiting strong superparamagnetic properties and bright fluorescence emissions at 500 nm after the excitation with light in the UV-visible range. Synthesis and characterization of hybrid fluorescent superparamagnetic core-shell particles of x composition are presented for the first time.