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Method for preparing nanometer copper oxide

A technology of nano-copper oxide and copper powder, which is applied in the direction of copper oxide/copper hydroxide, nanotechnology, etc., can solve problems such as difficult control, and achieve the effect of simple operation, high equipment requirements, and low equipment requirements

Inactive Publication Date: 2012-02-15
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, the morphology of the obtained product has a certain degree of randomness, which is difficult to control.

Method used

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  • Method for preparing nanometer copper oxide
  • Method for preparing nanometer copper oxide
  • Method for preparing nanometer copper oxide

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Effect test

Embodiment 1

[0014] Embodiment one: a kind of preparation method of nano-copper oxide material, the steps are as follows:

[0015] 1) Soak the copper powder in hydrochloric acid with a mass concentration of 25% for 3 minutes, then take out the copper powder, put it in acetone and clean it ultrasonically to obtain purified copper powder;

[0016] 2) Add iodine elemental substance into acetonitrile, heat and dissolve to obtain iodine in acetonitrile solution; the solubility of iodine in acetonitrile solution is 3g / L;

[0017] 3) Add the purified copper powder into the acetonitrile solution of iodine, heat and stir, and the heating temperature is 50°C;

[0018] 4) A black substance was obtained in the solution, precipitated and filtered, and it was nano-copper oxide powder.

Embodiment 2

[0019] Embodiment two: a kind of preparation method of nano-copper oxide material, the steps are as follows:

[0020] 1) Soak the copper powder in hydrochloric acid with a mass concentration of 28% for 3.5 minutes, then take out the copper powder, put it in acetone and clean it ultrasonically to obtain purified copper powder;

[0021] 2) Add iodine elemental substance into acetonitrile, heat and dissolve to obtain iodine in acetonitrile solution; the solubility of iodine in acetonitrile solution is 5g / L;

[0022] 3) Add the purified copper powder into the acetonitrile solution of iodine, heat and stir, and the heating temperature is 55°C;

[0023] 4) A black substance was obtained in the solution, precipitated and filtered, and it was nano-copper oxide powder.

Embodiment 3

[0024] Embodiment three: a kind of preparation method of nano-copper oxide material, the steps are as follows:

[0025] 1) Soak the copper powder in hydrochloric acid with a mass concentration of 30% for 4 minutes, then take out the copper powder, put it in acetone and clean it ultrasonically to obtain purified copper powder;

[0026] 2) Add iodine elemental substance into acetonitrile, heat and dissolve to obtain iodine in acetonitrile solution; the solubility of iodine in acetonitrile solution is 8g / L;

[0027] 3) Add the purified copper powder into the acetonitrile solution of iodine, heat and stir, and the heating temperature is 60°C;

[0028] 4) A black substance was obtained in the solution, precipitated and filtered, and it was nano-copper oxide powder.

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Abstract

The invention discloses a method for preparing nanometer copper oxide materials, which comprises the following steps that: 1) copper powder is soaked by hydrochloric acid with the mass concentration being 25 percent to 35 percent for 3 to 5min, then, the copper powder is taken out and is placed into acetone for ultrasonic cleaning, and purified copper powder is obtained; 2) iodine simple substances are added into acetonitrile and are dissolved through heating, the acetonitrile solution of iodine is obtained, and the solubility of the iodine in the acetonitrile solution is 3 to 10g / L; 3) the purified copper powder is added into the acetonitrile solution of the iodine, the heating and the stirring are carried out, and the heating temperature is 50 to 70 DEG C; and 4 ) black substances in the solution are precipitated and filtered, and the nanometer copper oxide powder is obtained. The method has the advantages that the copper powder is used as a raw material, is stirred in the acetonitrile solution of the iodine, is heated to 50 to 70 DEG C and is directly oxidized by oxygen gas to obtain the nanometer copper oxide. The reaction condition requirement is mild, in addition, the method has the characteristics that the operation is simple and convenient, the equipment requirement is low, the product purity is high, the cost is low, and the like.

Description

technical field [0001] The invention relates to a method for preparing nanometer materials, in particular to a method for preparing nanometer copper oxide. Background technique [0002] Copper oxide is an important p-type semiconductor material with a band gap of 1.2eV and belongs to the monoclinic crystal system. Due to its surface effect and quantum size effect, nano-copper oxide exhibits unusual properties in electricity, magnetism, and catalysis, and has attracted widespread attention. It is a multifunctional inorganic nanomaterial with broad application prospects. Therefore, the preparation and application of nano-copper oxide has become one of the important research directions of nanomaterials. [0003] At present, the preparation methods of nano-copper oxide mainly include: solid phase reaction method, precipitation method, sol-gel method, hydrothermal method, alcohol thermal method, spray pyrolysis method, liquid phase precipitation with controlled double jet flow, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02B82Y40/00
Inventor 汤立潘建国罗虹崔玉杰赵玲燕
Owner NINGBO UNIV
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