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A kind of preparation method of nano cuprous oxide hollow sphere

A technology of nano-cuprous oxide and hollow spheres, which is applied in the synthesis of cuprous oxide and the direct synthesis of cuprous oxide nanomaterials, which can solve the problems of large particle size and long reaction time, and achieve short reaction time and uniform shape distribution Effect

Active Publication Date: 2018-04-17
苏州美纳福健康科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The method for preparing cuprous oxide hollow spheres mainly includes the following several at present: (1) adding a template (referring to literature: Longshan Xu(Xu L, Chen X, Wu Y, et al . Nanotechnology, 2006,17(5):1501-1505. etc.), such as using gelatin as a template; (2) no template water bath reaction (referring to literature Yongming Sui (Sui Y, Zhang Y, Fu W, et al . Journal of Crystal Growth, 2009, 311(8):2285-2290. etc.), such as adding PVP, 90 ° C water bath; (3) no template (see literature: Yuxi Wang (Yuxi W, Da H, Xingzhong Z, et al. al.Nanoscale Research Letters, 2014,9(1):624-624. etc.), such as adding hydrazine hydrate dropwise to copper sulfate and reacting for 1 h to prepare hollow spheres, but the particle size is large (450 nm~700 nm), long reaction time

Method used

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  • A kind of preparation method of nano cuprous oxide hollow sphere
  • A kind of preparation method of nano cuprous oxide hollow sphere
  • A kind of preparation method of nano cuprous oxide hollow sphere

Examples

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Effect test

Embodiment 1

[0033] Take 68mL of 0.01M copper sulfate solution, add 0.5g of polyvinylpyrrolidone, and keep the water bath at room temperature to react; Add 68mL, 0.05M ascorbic acid solution, stir for 30min, wash 3 times with deionized water, wash 3 times with absolute ethanol, and then put it in a vacuum oven for 4h at 60°C to form a cuprous oxide hollow ball.

[0034] In the technical solution of the present invention, the copper salt and the complexing agent can form a copper complex, and the copper complex has an analytical equilibrium. With the addition of the reducing agent, the balance is destroyed, and cuprous oxide is gradually and slowly formed. . Present embodiment is main raw material with copper sulfate, ammoniacal liquor, and its chemical reaction formula is as follows:

[0035]

[0036]

[0037] .

[0038] The morphology and structure of cuprous oxide are hollow spheres. The samples were analyzed and characterized by scanning electron microscope (SEM), X-ray dif...

Embodiment 2

[0043] Take 68mL of 0.01M copper sulfate solution, add 0.5g sodium lauryl sulfate, and keep the water bath at room temperature for reaction; after fully dissolving, add dropwise 16mL of ammonia solution diluted at a volume ratio of 1:10, and stir for 10min Finally, add 68mL, 0.05M ascorbic acid solution dropwise, stir for 30min, wash 3 times with deionized water, wash 3 times with absolute ethanol, and then put it in a vacuum oven at 60°C for 4h, which is an oxidation Cuprous. See attached Figure 4 , which is the SEM image of the cuprous oxide prepared in this embodiment.

Embodiment 3

[0045] Take 60mL of 0.01M copper acetate solution, add 4mL of triethanolamine (analytical pure) dropwise, stir for 10min, add 60mL of 0.01M hydrazine hydrate dropwise, stir for 30min, wash with deionized water 3 times, and wash with absolute ethanol 3 times, and then dried in a vacuum oven at 60°C for 4 hours to obtain a cuprous oxide. See attached Figure 5 , which is the SEM image of the cuprous oxide prepared in this embodiment.

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Abstract

The invention discloses a preparation method of cuprous oxide hollow nano-spheres. The preparation method comprises the following steps: dispersing certain amounts of a cupric salt and a surfactant in deionized water, adding a certain amount of a complexing agent until a blue and transparent copper complexing solution is formed, adding a reducing agent, carrying out solid-liquid separation on the above obtained product, washing the obtained solid, centrifuging the washed solid, and carrying out vacuum drying to obtain the cuprous oxide hollow nano-spheres. The preparation method has the advantages of simplicity in operation and short reaction time, and cuprous oxide prepared in the invention has a nanometer scale and uniform morphology distribution.

Description

technical field [0001] The invention relates to a method for synthesizing cuprous oxide, in particular to a method for directly synthesizing cuprous oxide nanomaterials from a copper complex solution, which belongs to the technical field of inorganic nanomaterial preparation. Background technique [0002] Cuprous oxide is an important P-type semiconductor. After the size reaches the nanoscale, it has good application prospects in solar cells, photocatalysis, sensors and other fields due to its good surface physical and chemical properties. The obvious advantage of cuprous oxide as a photocatalyst is that it can directly use sunlight to catalyze the degradation of organic pollutants. Based on the antibacterial properties of copper series, the antibacterial properties of cuprous oxide are gradually being explored and used by people. [0003] Since the morphology of cuprous oxide has an important influence on its performance, the current research on cuprous oxide mainly focuses...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G3/02
CPCC01G3/02C01P2002/72C01P2004/03C01P2004/04C01P2004/34C01P2004/62
Inventor 郑敏段为甲
Owner 苏州美纳福健康科技有限公司
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