Synthesis method, product and application of C3N4 quantum dot room-temperature phosphorescent material
A room temperature phosphorescence, C3N4 technology, applied in the field of materials, can solve the problems of limitation, cytotoxicity, high cost, etc.
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Embodiment 1
[0027] With urea as reactant C 3 N 4 The synthesis of quantum dot room temperature phosphorescent materials, the specific steps are as follows:
[0028] (1) After grinding 20g of urea into off-white flour, transfer it to a reactor made of quartz glass with a volume of 50mL;
[0029] (2) The liner is then loaded into a high-temperature and high-pressure reactor according to the regular process;
[0030] (3) Set the reaction temperature to 300°C, the pressure to 8Mpa, the time to 3h, and the stirrer speed to 500rpm;
[0031] (4) After the reaction is over, wait for the reactor program to return to normal temperature and pressure, take out the liner and scrape the yellow-brown crude product;
[0032] (5) Ultrasonic dispersion of the crude product in an aqueous solution, followed by suction filtration with a filter membrane with a pore size of 220 nm;
[0033] (6) wash with dilute hydrochloric acid and ethanol successively, neutralize the product and remove other organic by-pr...
Embodiment 2
[0036] With hydroxyurea as reactant C 3 N 4 The synthesis of quantum dot room temperature phosphorescent materials, the specific steps are as follows:
[0037] (1) Grinding 10g of hydroxyurea into an off-white flour and transferring it to a reactor made of quartz glass with a volume of 50mL;
[0038] (2) The liner is then loaded into a high-temperature and high-pressure reactor according to the regular process;
[0039] (3) Set the reaction temperature as 250°C, the pressure as 4Mpa, the time as 2h, and the stirring bar rotating speed as 800rpm;
[0040] (4) After the reaction is over, wait for the reactor program to return to normal temperature and pressure, take out the liner and scrape the brown crude product;
[0041] (5) Ultrasonic dispersion of the crude product in an aqueous solution, followed by suction filtration with a filter membrane with a pore size of 220 nm;
[0042] (6) wash with dilute hydrochloric acid and ethanol successively, neutralize the product and r...
Embodiment 3
[0045] The synthesis of C3N4 quantum dot room temperature phosphorescent material with biuret as reactant, the specific steps are as follows:
[0046] (1) After grinding 15g of biuret into off-white flour, transfer to a reactor made of quartz glass with a volume of 50mL;
[0047] (2) The liner is then loaded into a high-temperature and high-pressure reactor according to the regular process;
[0048] (3) Set the reaction temperature to 270°C, the pressure to 5Mpa, the time to 3h, and the stirring bar speed to 500rpm;
[0049] (4) After the reaction is over, wait for the reactor program to return to normal temperature and pressure, take out the liner and scrape the brown crude product;
[0050] (5) Ultrasonic dispersion of the crude product in an aqueous solution, followed by suction filtration with a filter membrane with a pore size of 220 nm;
[0051] (6) wash with dilute hydrochloric acid and ethanol successively, neutralize the product and remove other organic by-products;...
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