A method for preparing carbon-coated magnetic nano particles and carbon-coated magnetic nano particles by the same

摘要

to be produced and thus the production method of the carbon is an object of the present invention is a carbon-coated magnetic nanoparticles is to provide a coated magnetic nanoparticles. To this end, the present invention comprises the steps of dissolving the metal precursors in a solvent comprising carbon for producing the metal precursor solution (step 1); Preparing a magnetic nanoparticles comprising a carbon by irradiating ultrasonic waves in the metal precursor solution of step 1 (step 2); Further comprising precipitating and drying the magnetic nanoparticles comprising the carbon from the metal precursor solution of step 2 (step 3); And a step for producing the magnetic nanoparticles are coated with carbon by heat-treating the magnetic nanoparticles comprising carbon in the step 3 (step 4); The carbon comprises a provides a process for the preparation of magnetic nanoparticles coated. Carbon-coated magnetic nanoparticles according to the present invention is chemically without magnetic properties are not reduced, thermal stability, magnetic nano-particles having a uniform size of several hundred nanometers is prepared enhanced high-density storage, magnetic resonance imaging, Biochemistry there is an effect that can be used in applications such as heat treatment and drug delivery materials. ;