METHOD OF PRODUCING COMPOSITE MATERIAL HAVING HIGH LEVEL OF FLUORESCENCE UNDER ACTION OF ELECTROMAGNETIC RADIATION OF VISIBLE RANGE Russian patent published in 2020 - IPC C09K11/64 C09K11/65 C01B21/82 C01F7/02 

FIELD: chemistry; electricity; medicine.

SUBSTANCE: invention relates to chemical and electronic industry, as well as to medicine and can be used in production of fluorescent pigments, light-emitting diodes, lasers, medical probes. A mixture of melamine and aluminum oxide is placed in the reaction zone at a weight ratio of 1:3. Melamine is then thermally decomposed in the presence of aluminum oxide at 500 °C for 3 hours with subsequent cooling. Obtained composite material, which is aluminum oxide, on which homogeneous, mechanically strong, electroconductive film of carbon nitride is applied, has high level of fluorescence under action of electromagnetic radiation of visible range.

EFFECT: invention increases output of the end product, having also thermal and chemical stability, in which there are no harmful impurities, and simplification of method for its production by excluding equipment for evacuation and blowdown.

1 cl, 3 dwg, 3 ex