| 摘要 |
Disclosed is a method of preparing fluorescent nanoparticles of ZnSexS1−x(0<x<1) comprising: mixing selenium powders, and sulfur powders with octadecylene, heating and stirring the mixture to dissolve the selenium powders, and the sulfur powders, and then cooling the mixture to give a first precursor solution comprising selenium and sulfur elements; mixing zinc oxide, oleic acid or lauric acid, octadecylene, and benzophenone, heating and stirring the mixture to dissolve the zinc oxide to give a second precursor solution comprising zinc element; adding the first precursor solution into the second precursor solution to undergo a reaction at a temperature of from 270° C. to 290° C. for a time of from 5 min to 10 min; pouring the reaction solution into a polar organic solvent to precipitate a raw product; washing and isolating the precipitate by centrifugation, and then dissolving the isolated materials with a non-polar organic solvent to give nanoparticles of ZnSexS1−x (0<x<1). |
| 主权项 |
1. A method of preparing nanoparticles of ZnSexS1-x wherein 0<x <1, comprising:
S1-1: in accordance with a molar ratio of selenium to sulfur in the nanoparticles ZnSexS1-x, mixing selenium powders, and sulfur powders with octadecylene, heating and stirring the mixture to dissolve the selenium powders, and the sulfur powders, and cooling the mixture to give a first precursor solution comprising selenium and sulfur elements; S1-2: mixing zinc oxide, oleic acid or laurie acid, octadecylene, and benzophenone, heating and stirring the mixture to dissolve the zinc oxide, to give a second precursor solution comprising zinc element, wherein a molar ratio of the zinc oxidg, the oigis acid or lauric acid, the octadecylene, and the benzophenone is 1:10:28:0.3; S2: in accordance with a ratio of zinc, selenium and sulfur in nanoparticles of ZnSexS1-x, adding the first precursor solution into the second precursor solution and heating the resultant precursor solution mixture to allow the precursors to undergo a reaction at a temperature of from 270°C to 290° C. for a time of 5 min to 10 min to form a reaction solution; and S3: pouring the reaction solution into a polar organic solvent to precipitate a raw product, washing and isolating the precipitate by centrifugation, and then dissolving the isolated materials with a non-polar organic solvent to give nanoparticles of ZnSexS1-x. |
