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Method for preparing copper selenide nanometer material

A technology for nanomaterials and copper selenide, which is applied in the field of preparation of copper selenide nanomaterials, can solve problems such as no nanomaterial reports or technical documents, and achieve the effects of easy promotion, low energy consumption, and simple and novel synthesis process.

Inactive Publication Date: 2009-12-02
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] No report or technical literature related to nanomaterials was found after searching the prior art

Method used

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  • Method for preparing copper selenide nanometer material
  • Method for preparing copper selenide nanometer material
  • Method for preparing copper selenide nanometer material

Examples

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Embodiment 1

[0021] (a) Weigh 0.630g, add 5mmol of anhydrous sodium sulfite (Na 2 SO 3 ) and 0.395g, the selenium powder of closing 5mmol was dissolved in 200mL distilled water and refluxed 24 hours, made sodium selenosulfate solution;

[0022] (b) Add 5mL of 25mM Cu(NO 3 ) 2 Aqueous solution, and vigorously stirred at room temperature, vacuumed and kept in nitrogen for 2 hours to make copper ion protein mixture;

[0023] (c) Get 5mL of 25mM sodium selenite solution in (a), add in the copper ion protein mixed solution solution in (b) and then stand still after slight stirring to make selenium-copper protein mixed solution;

[0024] (d) Leave the selenium-copper protein mixture at room temperature for 24 hours to complete the reaction, centrifuge at 15,000 rpm for 10 minutes, wash the resulting black solid three times with distilled water and ethanol, and then vacuum-dry it at 30°C After 12 hours, copper selenide nanomaterials were prepared.

Embodiment 2

[0026] (a) Weigh 0.630g, add 5mmol of anhydrous sodium sulfite (Na 2 SO 3 ) and 0.395g, the selenium powder of closing 5mmol was dissolved in 200mL distilled water and refluxed 24 hours, made sodium selenosulfate solution;

[0027] (b) Add 5mL of 25mM Cu(NO 3 ) 2 Aqueous solution, and vigorously stirred at room temperature, vacuumed and kept in nitrogen for 2 hours to make copper ion protein mixture;

[0028] (c) Take 5mL of 25mM Na in (a) 2 SeSO 3 solution, add the copper ion protein mixed solution in (b) and then stand still after slight stirring to make the selenium-copper protein mixed solution;

[0029] (d) Leave the selenium-copper protein mixture at room temperature for 48 hours and then centrifuge it at 15,000 rpm for 10 minutes. The resulting black solid is washed three times with distilled water and ethanol, and then vacuum-dried at 30°C After 12 hours, copper selenide nanomaterials were prepared.

Embodiment 3

[0031] (a) Weigh 0.630g, add 5mmol of anhydrous sodium sulfite (Na 2 SO 3 ) and 0.395g, the selenium powder of closing 5mmol was dissolved in 200mL distilled water and refluxed 24 hours, made sodium selenosulfate solution;

[0032] (b) Add 5mL of 25mM Cu(NO 3 ) 2 Aqueous solution, and vigorously stirred at room temperature, vacuumed and kept in nitrogen for 2 hours to make copper ion protein mixture;

[0033] (c) Take 5mL of 25mM Na in (a) 2 SeSO 3 solution, add (b) in the copper ion protein mixed solution and then stand still after slight stirring to make the selenium-copper protein mixed solution;

[0034] (d) Leave the selenium-copper protein mixture at room temperature for 96 hours and then centrifuge at 15,000 rpm for 10 minutes. The resulting black solid is washed three times with distilled water and ethanol, and then vacuum-dried at 30°C After 12 hours, copper selenide nanomaterials were prepared.

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Abstract

The invention relates to a method for preparing a copper selenide nanometer material in the technical field of nanometer composite materials, which comprises the following steps: preparing sodium selenosulfate solution; preparing copper ion protein mixed liquor; preparing selenium-copper protein mixed liquor; performing centrifugal treatment; and performing vacuum drying treatment to finally prepare copper selenide nanometer worms. The method has the advantages of simple and novel process, small quantity of devices, low energy consumption, environmental friendliness and convenient popularization, and the copper selenide nanometer material prepared by the method has a worm shape.

Description

technical field [0001] The invention relates to a preparation method in the technical field of nanocomposite materials, in particular to a preparation method of copper selenide nanomaterials. Background technique [0002] Copper selenide nanocrystals have become one of the research hotspots in academia because of their diverse composition and wide application in optical filters, solar cells, and superionic conductors. At present, there are many methods for the preparation of copper selenide nanomaterials. For example, Qian Yitai's research group prepared a variety of copper selenide nanocrystals (such as Cu 2-x Se, CuSe) (J.Am.Chem.Soc.1999,121,4062; Mater.Res.Bull., 2000,35,465.); Zhu et al. (J.Phys.Chem.B.2000,104,7344 .) Man synthesized Cu by microwave-assisted heating 2-x Se nanocrystals; Xie Yi et al. and Zhu et al. prepared copper selenide nanocrystals by ultrasonic chemistry (Inorg.Chem.2002, 41, 387; J.Cryst.Growth, 2002, 234, 263.); Qian Xuefeng et al successful...

Claims

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Application Information

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IPC IPC(8): C01B19/04B82B3/00
Inventor 黄鹏孔毅飞高峰崔大祥
Owner SHANGHAI JIAO TONG UNIV
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