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Nano copper oxide as well as preparation method and application thereof

A nanometer copper oxide and sodium hydroxide technology, applied in the field of nanomaterials, can solve the problems of low product purity and uneven particle distribution.

Inactive Publication Date: 2021-01-29
HUNAN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The physical method can be divided into physical crushing method, mechanical ball milling method, laser evaporation method and vacuum condensation method, etc.; however, the products prepared by the physical method have low purity and uneven particle distribution.

Method used

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  • Nano copper oxide as well as preparation method and application thereof
  • Nano copper oxide as well as preparation method and application thereof
  • Nano copper oxide as well as preparation method and application thereof

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preparation example Construction

[0021] The invention provides a kind of preparation method of nano-copper oxide, comprises the following steps:

[0022] The copper salt aqueous solution and the methanol solution of sodium hydroxide are mixed at normal temperature and reacted to obtain nanometer copper oxide.

[0023] In the present invention, unless otherwise specified, all raw materials are commercially available products well known to those skilled in the art.

[0024] In the present invention, the copper salt aqueous solution is preferably obtained by dissolving copper salt in water, and the copper salt preferably includes copper sulfate pentahydrate, copper chloride or copper nitrate, more preferably copper sulfate or copper chloride. In the present invention, the molar concentration of copper ions in the copper salt aqueous solution is preferably 0.1-1 mol / L, more preferably 0.3-0.5 mol / L, even more preferably 0.32-0.4 mol / L.

[0025] In the present invention, the methanol solution of sodium hydroxide ...

Embodiment 1

[0040] 5g of copper sulfate pentahydrate was dissolved in 40mL of water to obtain an aqueous solution of copper sulfate;

[0041] Dissolve 1.6g of sodium hydroxide in 100ml of methanol to obtain methanol solution of sodium hydroxide;

[0042] Under the conditions of 25°C and 600r / min, the sodium hydroxide methanol solution was added dropwise to the copper sulfate aqueous solution at a rate of 120 drops / min for 30 minutes and then filtered, and the filtered filter residue was vacuum-dried to obtain nano-copper oxide.

Embodiment 2

[0044] 4g of copper sulfate pentahydrate was dissolved in 40mL of water to obtain an aqueous solution of copper sulfate;

[0045] 1.28g of sodium hydroxide was dissolved in 128ml of methanol to obtain methanol solution of sodium hydroxide;

[0046] Under the conditions of 15°C and 720r / min, the sodium hydroxide methanol solution was added dropwise to the copper sulfate aqueous solution at a rate of 100 drops / min for 50 minutes, and then filtered, and the filtered residue was naturally dried to obtain nano-copper oxide.

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Abstract

The invention belongs to the technical field of nano materials, and particularly relates to nano copper oxide as well as a preparation method and an application thereof. The invention provides a preparation method of nano copper oxide, which comprises the following steps: mixing a copper salt water solution and a methanol solution of sodium hydroxide at normal temperature, and reacting to obtain the nano copper oxide. According to the preparation method provided by the invention, the nano copper oxide can be prepared under the condition of normal temperature without heating. The preparation method provided by the invention is simple and easy to operate, and can realize large-scale production. The invention also provides the nano copper oxide prepared by the preparation method in the technical scheme. Methanol is adsorbed on the surface of the nano copper oxide; wherein the average particle size of the nano copper oxide is 3-80nm. The nano copper oxide provided by the invention has efficient antibacterial property and methanol adsorption effect.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a nanometer copper oxide and its preparation method and application. Background technique [0002] Ordinary copper oxide is mostly used as a colorant and pigment for ceramics and glass to manufacture artificial gemstones, colored glass, etc.; in addition, copper oxide can also be used as an anti-wrinkle agent, bactericide, and metallurgical reagent for paint. Copper oxide is widely used in industrial production. When the particle size of copper oxide powder reaches the nanometer level, it will show unique properties due to the small size effect, macroscopic quantum tunneling effect, surface effect, and volume effect. It exhibits special physical and chemical properties in terms of light absorption, thermal resistance, magnetism, melting point, and chemical activity. At the same time, nano-copper oxide particles are also non-toxic, environmentally friendly,...

Claims

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Application Information

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IPC IPC(8): C01G3/02B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G3/02C01P2002/72C01P2004/04C01P2004/64
Inventor 易春旺徐博仁
Owner HUNAN NORMAL UNIVERSITY