Hollow cuprous oxide nanometre material and preparation method for same
A technology of cuprous oxide and nanomaterials, applied in the direction of copper oxide/copper hydroxide, nanotechnology, etc., can solve the problems of preparation and research that have not been reported, and achieve cheap and easy raw materials, high surface roughness, and easy operation Effect
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Embodiment 1
[0037] 1. First configure the following solutions:
[0038] 15mol L -1 Sodium hydroxide aqueous solution: Weigh 60g of sodium hydroxide (analytical grade) and dissolve it in 100mL of deionized water; stir at room temperature to fully dissolve the sodium hydroxide.
[0039] 0.1mol L -1 Copper nitrate aqueous solution: Weigh 2.416g of copper nitrate (analytical grade) and dissolve it in 100mL of deionized water; stir at room temperature to fully dissolve the sodium hydroxide.
[0040]The ethylenediamine used was of analytical grade without any dilution. The hydrazine used is analytically pure with a concentration of 35%.
[0041] 2. Then use the various solutions prepared above to prepare cuprous oxide spherical hollow nanomaterials according to the following steps:
[0042] Take 50mL concentration as 15mol L -1 Sodium hydroxide aqueous solution, add 375μL ethylenediamine solution to it, mix well, then add 10mL concentration of 0.1mol L -1 Copper nitrate aqueous solution, ...
Embodiment 2
[0049] Take 50mL concentration as 15mol L -1 Sodium hydroxide aqueous solution, add 375μL ethylenediamine solution to it, mix well, then add 10mL concentration of 0.1mol L -1 Copper nitrate aqueous solution, the solution was fully stirred at 90°C to obtain a sky blue mixed solution, which was clear and transparent without any precipitation. At 90° C., 125 μL of hydrazine reducing agent was added, and the stirring was continued for 10 minutes to 1 hour. Finally, the solution turned orange-red, indicating the formation of cuprous oxide nanomaterials. The prepared cuprous oxide nanomaterial is centrifuged twice under the condition of 8000 revolutions (rpm) per minute, each time for 5 minutes, thus removing unreacted ions and excess sodium hydroxide and ethylenediamine complexing agent, Finally, the cuprous oxide nanomaterials are vacuum-dried at 60° C., or freeze-dried.
[0050] The scanning electron microscope images of the obtained cuprous oxide nanomaterials are as follows: ...
Embodiment 3
[0054] Take 50mL concentration as 15mol L -1 Aqueous sodium hydroxide solution, to which was added 20mL concentration of 0.1mol L -1 Copper nitrate aqueous solution, the solution is at 60°C, fully stirred evenly. At 60° C., 125 μL of hydrazine reducing agent was added, and the stirring was continued for 10 minutes to 1 hour. Finally, the solution turned red, indicating that cuprous oxide nanomaterials were formed. The prepared cuprous oxide nanomaterial is centrifuged twice under the condition of 8000 revolutions (rpm) per minute, each time for 5 minutes, thus removing unreacted ions and excess sodium hydroxide and ethylenediamine complexing agent, Finally, the cuprous oxide nanomaterials are vacuum-dried at 60° C., or freeze-dried.
[0055] The scanning electron microscope images of the obtained cuprous oxide nanomaterials are as follows: Figure 4 shown by Figure 4 It can be seen that the cuprous oxide nanomaterial prepared in this example has a uniform octahedral struc...
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