Method for preparing cuprous oxide microcrystals by taking carbon quantum dots as reducing agent
A carbon quantum dot, cuprous oxide technology, applied in copper oxide/copper hydroxide and other directions, can solve the problem of high purity
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Embodiment 1
[0021] Example 1 Preparation of carbon quantum dots
[0022] The preparation of carbon quantum dots adopts the hydrothermal synthesis method: weigh 4 g of green grass in a 50 mL polytetrafluoroethylene reactor, then add 20 mL of distilled water, and then place it at 180 o C was kept in a drying oven for 4 h, and the reaction kettle was taken out to cool down to room temperature naturally, and the solid impurities were filtered out to obtain a carbon quantum dot solution.
Embodiment 2
[0023] Example 2 Preparation of graded spherical cuprous oxide
[0024] 255 mg of Cu(NO 3 ) 3H 2 Dissolve O in 10 mL of distilled water, then add 10 mL of NaOH solution (1 mol / L), add 600 mg of polyethylene glycol 2000 and 8 mL of carbon quantum solution prepared after the dropwise addition, and mix the solution at 1500 r / min Stir for 10 min, then transfer to a 50 mL polytetrafluoroethylene reactor, put in an oven, 180 o C for 8 h, take out the reactor and cool to room temperature naturally; wash the obtained samples with deionized water and absolute ethanol for 3 times, centrifuge and place in a vacuum oven for 60 o C drying for 8 h.
Embodiment 3
[0025] Example 3 Preparation of spherical cuprous oxide
[0026] 255 mg of CuCl 2 2H 2 Dissolve O in 10 mL of distilled water, then add 20 mL of NaOH solution (1 mol / L), add 800 mg of polyethylene glycol 2000 and 8 mL of carbon quantum solution prepared after the dropwise addition, and mix the solution at 100 r / min Stir for 150 min, then transfer to a 50 mL polytetrafluoroethylene reactor, put in an oven, 200 o C for 6 h, take out the reactor and cool to room temperature naturally; wash the obtained samples with deionized water and absolute ethanol for 3 times, centrifuge and place in a vacuum oven for 60 o C drying for 8 h.
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