A kind of nano-cuprous oxide powder containing twins and preparation method thereof
A technology of nano-cuprous oxide and powder, which is applied in the field of nano-materials to achieve the effects of uniform size, uniform distribution, and simple and controllable reaction process
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[0032] The present invention provides a kind of preparation method of nano-cuprous oxide powder containing twin crystal, specifically implement according to the following steps:
[0033] Step 1, add molybdenum powder and hydrogen peroxide to deionized water and mix, stir for a certain period of time to obtain a molybdenum ion precursor solution, filter the molybdenum ion precursor solution, put the filtrate into the reaction kettle and place it in an oven for solvent Heat reaction for a certain period of time to obtain a reaction solution of molybdenum dioxide, centrifuge the reaction solution of molybdenum dioxide, wash and dry to obtain molybdenum dioxide powder;
[0034] In step 1, the particle diameter of molybdenum powder is 100nm~800nm, and the molar volume ratio of molybdenum powder and deionized water is 5mol / L~25mol / L;
[0035] In step 1, the mass fraction of hydrogen peroxide solution is 20%~40%; the stirring speed is 200r / min~600r / min, and the stirring time is 2h~6h...
Embodiment 1
[0047] Add molybdenum powder with a molar concentration of 15mol / L and a particle size of 550nm into deionized water, and place it on a stirrer with a rotation speed of 500r / min, then add a hydrogen peroxide solution with a mass fraction of 30%, and the hydrogen peroxide solution The volume ratio with deionized water is 1:3, stir for 4h to make it fully react; filter with absolute ethanol, the volume ratio of hydrogen peroxide solution to absolute ethanol is 1:35, put the filtrate into the reaction kettle and Put it in an oven for solvothermal, the reaction time is 8h, the temperature is 180°C; the reaction solution is centrifuged, washed and centrifuged with absolute ethanol 4 times, and then placed in a 40°C oven for 24h in vacuum to obtain molybdenum dioxide powder ;According to the mass volume ratio of 0.5mg / mL, add molybdenum dioxide powder into ethylene glycol, and ultrasonically disperse for 20min; dropwise add copper nitrate solution with a molar concentration of 0.6mol...
Embodiment 2
[0049] Add molybdenum powder with a molar concentration of 5mol / L and a particle size of 100nm into deionized water, and place it on a stirrer with a rotation speed of 200r / min, then add a hydrogen peroxide solution with a mass fraction of 25%, and the hydrogen peroxide solution The volume ratio with deionized water is 1:1, stir for 6h to make it fully react; filter with absolute ethanol, the volume ratio of hydrogen peroxide solution and absolute ethanol is 1:10, put the filtrate into the reaction kettle and Put it in an oven for solvent heat, the reaction time is 24 hours, and the temperature is 140°C; the reaction solution is centrifuged, washed and centrifuged with absolute ethanol for 5 times, and then dried in a vacuum oven at 45°C for 20 hours to obtain molybdenum dioxide powder; according to the mass volume ratio of 0.1mg / mL, add molybdenum dioxide powder into methanol, and ultrasonically disperse for 30min; dropwise add copper chloride solution with a molar concentrati...
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