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A kind of preparation method of nano polyhedral copper oxide powder for catalysis

A technology of copper oxide powder and polyhedron, applied in chemical instruments and methods, copper oxide/copper hydroxide, nanotechnology for materials and surface science, etc., can solve problems such as excessive particle size and poor catalytic performance, and achieve synthesis Low temperature, improved performance of catalytic degradation of organic pollutants, simple operation

Inactive Publication Date: 2016-03-30
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a catalytic nano-polyhedron in order to solve technical problems such as poor catalytic performance caused by too large particles of the final copper oxide powder and excessive powder agglomeration in the above-mentioned copper oxide powder preparation process. A method for preparing copper oxide powder. The nano-polyhedral copper oxide powder obtained by the preparation method has the characteristics of good crystal morphology, small particle size, high crystallinity, and low degree of agglomeration.

Method used

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  • A kind of preparation method of nano polyhedral copper oxide powder for catalysis
  • A kind of preparation method of nano polyhedral copper oxide powder for catalysis
  • A kind of preparation method of nano polyhedral copper oxide powder for catalysis

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Embodiment 1

[0035] A preparation method of nano polyhedral copper oxide powder for catalysis, specifically comprising the following steps:

[0036] (1) Dissolve 15.1g of copper salt in 125ml of deionized water to make a copper salt solution with a concentration of 0.5mol / l, then adjust the pH to 6-8 with alkali to obtain a copper salt solution with a pH of 6-8 ;

[0037] The base is NH 3 ·H 2 O;

[0038] The copper salt is Cu(NO 3 ) 2 .3H 2 O;

[0039] (2) Put the copper salt aqueous solution with a pH of 6-8 obtained in step (1) in a constant temperature magnetic stirrer to control the temperature at 60°C and stir at a speed of 450r / min for 1.5h, and suction filter after precipitation is formed. The obtained filter cake is washed with deionized water for 2-3 times, and then dried at a controlled temperature of 60°C to obtain a precursor;

[0040] (3) Put the sodium salt, potassium salt and the precursor obtained in step (2) into the ball mill tank together, and control the balls ...

Embodiment 2

[0049] A preparation method of nano polyhedral copper oxide powder for catalysis, specifically comprising the following steps:

[0050] (1) Dissolve 10.655g of copper salt in 125ml of deionized water to make a copper salt aqueous solution with a concentration of 0.5mol / l, and then adjust the pH to 6-8 with alkali to obtain a copper salt aqueous solution with a pH of 6-8 ;

[0051] The base is NH 3 ·H 2 O, the copper salt is CuCl 2 .2H 2 O;

[0052] (2) Put the copper salt aqueous solution with a pH of 6-8 obtained in step (1) in a constant temperature magnetic stirrer to control the temperature at 60°C and stir at a speed of 450r / min for 1.5h, and suction filter after precipitation is formed. The obtained filter cake is washed with deionized water for 2-3 times, and then dried at a controlled temperature of 60°C to obtain a precursor;

[0053] (3) Put the sodium salt, potassium salt and the precursor obtained in step (2) into the ball mill tank together, and control the ...

Embodiment 3

[0058] A preparation method of nano polyhedral copper oxide powder for catalysis, specifically comprising the following steps:

[0059] (1) Dissolve 15.1g of copper salt in 125ml of deionized water to make a copper salt solution with a concentration of 0.5mol / l, then adjust the pH to 6-8 with alkali to obtain a copper salt solution with a pH of 6-8 ;

[0060] Described alkali is NaOH; Described copper salt is Cu(NO 3 ) 2 .3H 2 O;

[0061] (2) Put the copper salt aqueous solution with a pH of 6-8 obtained in step (1) in a constant temperature magnetic stirrer to control the temperature at 60°C and stir at a speed of 450r / min for 1.5h, and suction filter after precipitation is formed. The obtained filter cake is washed with deionized water for 2-3 times, and then dried at a controlled temperature of 60°C to obtain a precursor;

[0062] (3) Put the sodium salt, potassium salt and the precursor obtained in step (2) into the ball mill tank together, and control the balls in th...

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Abstract

The present invention discloses a method of catalytic nano-noodle-sized copper powder. It is about to dissolve copper salt in water, with a copper saline solution with a concentration of 0.5 mol / L.The control temperature of the copper saline solution with a pH of 6-8 is 60 ° C, and the speed is 450R / min to stir 1.5h. After the sedimentation is generated, the filter cake is washed 2-3 times with exfoliating cake, and then controlled by controlling, and then controlled.The temperature is dry at 60 ° C to get the front -drive body; then put the sodium salt, potassium salt and the front -wheel drive in the ball mill for ball grinding.Burning for 450-650 ° C, and then cooled to room temperature with the furnace, that is, the catalytic catalytic with a uniform chemical component and a good crystal appearance is obtained.The preparation method has the advantages of low synthetic temperature, simple operation, and other advantages.

Description

technical field [0001] The invention relates to a preparation method of nano copper oxide powder, in particular to a preparation method of nano polyhedral copper oxide powder for catalysis. Background technique [0002] The nano-catalytic technology that has just started in my country, although only TiO 2 A small number of varieties have achieved industrialization. But it has shown good prospects for development. At the nanotechnology seminar that ended at the end of 2004, experts believed that nanomaterials have unique crystal structures and surface properties, and their catalytic activity and selectivity are much higher than traditional catalysts, and can be used as new catalytic materials in the chemical industry. Undoubtedly, as the particle size of nanoparticles decreases, the surface area gradually increases, and the adsorption capacity and catalytic performance are also enhanced. These unique effects enable nano-catalysts to not only control the reaction speed, gre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G3/02B01J23/78B82Y40/00B82Y30/00
CPCB01J23/72C01G3/02C01P2002/72C01P2004/03C01P2004/30C01P2004/64
Inventor 曾涛白杨刘伟景姚伟峰
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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