FIELD: chemistry.
SUBSTANCE: method of obtaining silver nanoparticles includes preparation of water solutions of silver nitrate with the concentration of 0.001÷0.02 M/l and L-cysteine with the concentration of 0.00125÷0.04 M/l. The obtained solutions are mixed with the molar ratio of silver nitrate and L-cysteine in the range of 1.25÷2.00 and kept at a temperature of 15÷55°C for 0.34÷48 hours in a protected from light place with obtaining a solution of a supramolecular polymer. The obtained solution of the supramolecular polymer is diluted with water in a volume ratio of 1:1. A water solution of sodium borohydride with the concentration of 0.003÷0.010 M/l is prepared and added to the solution of the supramolecular polymer with constant mixing.
EFFECT: invention makes it possible to obtain silver nanoparticles with an average hydrodynamic radius of 20 nm.
4 dwg, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING A SUPRAMOLECULAR GEL CONTAINING SILVER NANOPARTICLES | 2021 |
|
RU2761210C1 |
| PROCESS OF PRODUCING THIXOTROPIC SUPERMOLECULAR HYDROGENS OF PREDETERMINED STRENGTH | 2017 |
|
RU2676473C1 |
| METHOD OF PRODUCING A COLLOIDAL WATER SOLUTION OF SILVER | 2015 |
|
RU2623251C2 |
| METHOD OF OBTAINING FILMS WITH NANOSTRUCTURED SILVER | 2013 |
|
RU2542280C1 |
| METHOD OF OBTAINING SUPRAMOLECULAR HYDROGEL | 2016 |
|
RU2641111C1 |
| METHOD OF PRODUCING LOW-CONCENTRATION GELS BASED ON N-ACETYL-L-CYSTEINE AND SILVER NITRATE | 2013 |
|
RU2530572C1 |
| METHOD FOR PRODUCING NANOSCALE TITANIUM DIOXIDE WITH VARIABLE OPTICAL PROPERTIES MODIFIED WITH METALLIC PLASMON NANOPARTICLES | 2021 |
|
RU2771768C1 |
| METHOD FOR OBTAINING COMPARISON STANDARDS FOR MEASURING ELECTROKINETIC (ZETA) POTENTIAL | 2020 |
|
RU2746992C1 |
| METHOD OF OBTAINING STANDARD SAMPLES FOR MEASUREMENT OF ZETA POTENTIAL VALUES OF PARTICLES OF COLLOIDAL SYSTEMS USING OPTICAL METHODS | 2023 |
|
RU2805767C1 |
| METHOD OF PREPARING AQUEOUS SYSTEM FOR BRANCHED FRACTAL CLUSTERS BASED ON L-CYSTEINE | 2009 |
|
RU2423384C1 |
