A low-cost green preparation method of nano-copper

A nano-copper, low-cost technology, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of high energy consumption, high pollution, high production cost, etc., achieve less alcohol consumption, The raw materials are cheap and easy to obtain, and the production cost is low

Active Publication Date: 2020-05-29
ENERGY RES INST OF JIANGXI ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a low-cost green preparation method of nano-copper in order to improve the defects of high pollution, high energy consumption, high production cost and other defects of the traditional preparation method of nano-copper

Method used

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  • A low-cost green preparation method of nano-copper
  • A low-cost green preparation method of nano-copper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Take 0.004 mol of copper sulfate pentahydrate, dissolve it in 25 ml of water, stir to a homogeneous solution, add 25 ml of ethanol, 25 ml of 2.5 mol / L NaOH solution, and stir for 1 h.

[0021] (2) Transfer the mixed liquid and solid obtained above to a hydrothermal kettle, and heat it in an oven at 160 O C for 12 h and cooled to room temperature.

[0022] (3) The mixed liquid and solid in the reaction kettle are filtered to obtain the filtrate and solid, and after the solid is washed with water and ethanol, 40 O C was dried in vacuum for 24 h to obtain nano-copper powder.

[0023] Gained nano-copper powder, through X-ray diffraction, such as figure 2 As shown, diffraction occurs only at the diffraction angles of 43.3, 50.4, and 74.0 degrees, indicating that the substance prepared by the water-ethanol thermal method is nano-copper.

Embodiment 2

[0025] (1) Take 0.003 mol of copper nitrate trihydrate, dissolve it in 25 ml of water, stir until a homogeneous solution, add 15 ml of ethanol, 15 ml of 2.0 mol / L NaOH solution, and stir for 2 h.

[0026] (2) Transfer the mixed liquid and solid obtained above to a hydrothermal kettle, and heat it in an oven at 180 O C conditions for 8h, cooled to room temperature.

[0027] (3) The mixed liquid and solid in the reaction kettle are filtered to obtain the filtrate and solid. After the solid is washed with water and ethanol, 50 O C was dried in vacuum for 24 h to obtain nano-copper powder.

Embodiment 3

[0029] (1) Take 0.002 mol of copper chloride, dissolve it in 25 ml of water, stir until a homogeneous solution, add 15 ml of ethanol, 10 ml of 1.5 mol / L NaOH solution, and stir for 2 h.

[0030] (2) Transfer the mixed liquid and solid obtained above to a hydrothermal kettle, and heat it in an oven at 200 O C for 10 h and cooled to room temperature.

[0031] (3) The mixed liquid and solid in the reaction kettle are filtered to obtain the filtrate and solid, and the solid is washed with water and ethanol for 30 O C was dried in vacuum for 36 h to obtain nano-copper powder.

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Abstract

A low -cost green preparation method of nanometer copper, the method steps are as follows: (1) use soluble copper salt as the raw material, add the water to the water to obtain the average solution, add a certain amount of small molecular alcohol, stir well, then stir in the stirringIn the case, add the alkali solution and continue stirring; (2) the liquid and solid obtained in steps (1) in the steps (1) to the water thermal kettle, in 160 O C to 200 O Under the C conditions, after 6 h to 12 h, it is cooled to room temperature, and the filter and brick red sediment are filtered. Use distilled water and ethanol to clean the sediment. 30 ~ 60 O C The vacuum is dry for 12-24 h to get nano -copper powder.The present invention obtains nano -copper powder through the preparation of water alcohol thermal system. The raw materials are cheap and easy to obtain, the amount of alcohol is small, and the main organic products are the corresponding acids corresponding to alcohol, which can be recycled and the production cost is low.This method does not need to add toxic reducing agents, green environmental protection; products are easy to separate and collect, simple preparation methods, and easy to achieve industrial production.

Description

technical field [0001] The invention relates to a low-cost green preparation method of nanometer copper, which belongs to the technical field of nanometer copper preparation. Background technique [0002] The development of nano-copper powder is a key technology that may bring revolutionary changes in copper, and has important theoretical significance and practical value. The preparation methods of ultra-fine copper powder in industry are mainly atomization method and electrolysis method. The atomization method is a traditional simple and effective nanomaterial preparation method, but the anti-oxidation problem encountered in the preparation process of nano-copper has been difficult to solve; the publication number CN101818364A discloses a preparation method of nano-copper powder, the method Nano-copper powder is prepared by electrolysis, but electrolysis requires high energy consumption, and the prepared copper particles are relatively large, and various organic reagents n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/24B22F1/00B82Y40/00B82Y30/00
CPCB82Y30/00B82Y40/00B22F9/24B22F1/054
Inventor 陈小平熊继海石金明夏嵩桂双林
Owner ENERGY RES INST OF JIANGXI ACAD OF SCI
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