Preparation method of cuprous sulfide powder, and cuprous sulfide powder

A technology of cuprous sulfide and cuprous oxide, applied in the direction of copper sulfide, etc., can solve the problems of low purity of cuprous sulfide powder, complicated preparation process, no specific shape, etc., and achieve rich and cheap raw materials, simple preparation process, disperse good sex effect

Active Publication Date: 2015-04-08
HUNAN RARE EARTH METAL MATERIAL RES INST
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  • Abstract
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  • Claims
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Problems solved by technology

However, the obtained cuprous sulfide powder contains unreacted copper powder or copper oxide, which leads to low purity of cuprous sulfide powder, and has the disadvantages of no specific shape, coarse particle size, wide distribution and poor stability. In addition, the process is complicated, Involving toxic gas hydrogen sulfide or sulfur vapor, the preparation process is complex

Method used

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  • Preparation method of cuprous sulfide powder, and cuprous sulfide powder
  • Preparation method of cuprous sulfide powder, and cuprous sulfide powder

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preparation example Construction

[0025] A preparation method of cuprous sulfide powder, comprising the following steps:

[0026] Step S1: adding soluble divalent copper salt into the alkaline solution to obtain a mixed solution.

[0027] At room temperature, add the soluble divalent copper salt into the alkaline solution, stir and heat until the temperature is 60-80°C. Continue to stir at 60-80°C for 10-30 minutes at a speed of 300r / min.

[0028] Preferably, the soluble divalent copper salt is CuSO 4 and Cu(NO 3 ) 2 at least one of . More preferably, the soluble divalent copper salt is prepared into a solution, and Cu in the divalent copper salt solution 2+ The concentration is 0.5~2mol / L.

[0029] In particular, the alkaline solution is a hydroxide solution. More preferably, the hydroxide is at least one of NaOH and KOH, and OH in alkaline solution - The concentration is 1~4mol / L.

[0030] In particular, the pH of the mixed liquid is 9-14.

[0031] In this step, Cu 2+ React with alkaline solution ...

Embodiment 1

[0062] At room temperature, 25 g of CuSO 4 ﹒ 5H 2 Dissolve O in water to prepare a 0.5mol / L copper sulfate solution, add 4mol / L NaOH solution until the pH of the mixture is 14, and heat to 80°C for 30 minutes under stirring at a rotating speed of 300r / min to obtain a precipitate containing Mixed solution; continue to add 40g of glucose, and react for 1 hour under stirring at a rotating speed of 300r / min, then add 5ml of polyethylene glycol 2000 aqueous solution with a mass fraction of 10%, and react for 0.5 hour under stirring at a rotating speed of 300r / min, Centrifuge to obtain cuprous oxide slurry.

[0063] 20.4g of (NH 4 )SH was dissolved in 0.05 mol / L NaOH solution, 5 ml of hydrazine hydrate with a mass fraction of 1% was added, and stirred for 10 minutes to obtain a vulcanizing agent solution.

[0064] Mix the cuprous oxide slurry with the vulcanizing agent solution, and react for 1 hour under stirring at a rotating speed of 300 r / min to prepare a cuprous sulfide pre...

Embodiment 2

[0067] At room temperature, 25 g of CuSO 4 ﹒ 5H 2 O was dissolved in water to prepare a 1mol / L copper sulfate solution, and 3mol / L NaOH solution was added until the pH of the mixed solution was 12. Under stirring at a speed of 300r / min, it was heated to 80°C for 30 minutes to obtain a precipitate containing Mixed solution; continue to add 40g of glucose, and react for 1 hour under stirring at a rotating speed of 300r / min to obtain a mixed solution containing cuprous oxide; then add 5ml of a 5% polyethylene glycol 2000 aqueous solution with a mass fraction of 300r / min / min under stirring for 0.5 hours, centrifuged to obtain cuprous oxide slurry.

[0068] 20.4g of (NH 4 )SH was dissolved in 0.05 mol / L NaOH solution, 5 ml of hydrazine hydrate with a mass fraction of 1% was added, and stirred for 10 minutes to obtain a vulcanizing agent solution.

[0069] Mix the cuprous oxide slurry with the vulcanizing agent solution, and react for 1 hour under stirring at a rotation speed o...

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Abstract

The invention discloses a preparation method of cuprous sulfide powder and the cuprous sulfide powder. The preparation method of the cuprous sulfide powder comprises the following steps: allowing cuprous oxide and a sulfurizing agent solution to react and filtering to obtain a cuprous sulfide precursor; calcining the cuprous sulfide precursor in vacuum to obtain the cuprous sulfide powder. According to the preparation method of the cuprous sulfide powder, the cuprous oxide and the sulfuring agent react, the cuprous sulfide precursor is prepared by adopting a precipitate transformation method and is calcined in vacuum to prepare the cuprous sulfide powder. The method is rich in cheap raw materials, low in cost, simple in preparation process, mild in condition, good in controllability, high in production efficiency, easy to realize industrialization, free of pollution and wide in development prospect in the field of preparation of superfine powder; the prepared cuprous sulfide powder is high in purity, good in crystal form, good in dispersity, stable in structure, easy to coat, dope, sinter and the like, and applicable to the fields of solar batteries, seawater batteries, sensors, catalysts and the like.

Description

technical field [0001] The invention relates to a preparation method of powder, in particular to a preparation method of cuprous sulfide powder and the cuprous sulfide powder. Background technique [0002] Cuprous sulfide (Cu 2 S) As a new type of semiconductor material, it has excellent photoelectric properties, nonlinear optical properties and photocatalytic properties. At present, it has been applied in the fields of solar cells, seawater batteries and photocatalysis, showing excellent photoelectric performance and photocatalytic effect. Due to its special nonlinear optical properties, it also has great application potential in the fields of laser generators, infrared detectors and light sensors. [0003] Ultrafine spherical powder is widely used in many high-tech fields due to its large specific surface area, high surface activity, fast chemical reaction speed, good solubility, excellent sintering performance and unique electrical, magnetic and optical properties. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/12
CPCC01G3/12C01P2002/72C01P2004/03C01P2004/32C01P2004/62
Inventor 马小波陈建波翁国庆兰石琨夏楚平姚茂海
Owner HUNAN RARE EARTH METAL MATERIAL RES INST
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