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Preparation method of polyhedron nano copper oxide of loaded spherical zinc oxide nano particles

A nano-copper oxide and zinc oxide nano-technology, which is applied in the direction of catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve the problem of heterogeneous catalyst morphology and insufficient catalytic activity , low crystallinity and other problems, to achieve the effect of uniform chemical composition of the powder, good crystal morphology, and low synthesis temperature

Inactive Publication Date: 2015-11-04
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing polyhedral nano-copper oxide loaded with spherical zinc oxide nanoparticles in order to solve the above-mentioned technical problems such as inhomogeneous catalyst morphology, serious agglomeration, low crystallinity, and insufficient catalytic activity. That is, by adopting the molten salt-solution evaporation method and controlling the experimental conditions, the polyhedral nano-copper oxide loaded with spherical zinc oxide nanoparticles with the best catalytic performance is prepared, and the polyhedral nano-copper oxide loaded with spherical zinc oxide nanoparticles is used as a catalyst , has the characteristics of good catalytic performance, uniform appearance, not easy to agglomerate, high crystallinity, strong catalytic activity, etc.

Method used

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  • Preparation method of polyhedron nano copper oxide of loaded spherical zinc oxide nano particles
  • Preparation method of polyhedron nano copper oxide of loaded spherical zinc oxide nano particles
  • Preparation method of polyhedron nano copper oxide of loaded spherical zinc oxide nano particles

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Embodiment 1

[0038] A method for preparing polyhedral nano-copper oxide loaded with spherical zinc oxide nanoparticles, specifically comprising the following steps:

[0039] (1) Dissolve 15.1g of copper salt in 125ml of deionized water to make a copper salt aqueous solution with a concentration of 0.5mol / l, then adjust the pH to 6-8 with alkali, and then control the temperature in a constant temperature magnetic stirrer to 60 Stir at constant temperature for 1.5 hours at ℃, then suction filter, wash the obtained filter cake with deionized water for 2-3 times, and then control the temperature at 60℃ for drying to obtain polyhedral nano-copper oxide

[0040] Described copper salt is copper nitrate trihydrate;

[0041] Described alkali is ammoniacal liquor;

[0042](2) Put the polyhedral nano-copper oxide precursor obtained in step (1) together with the molten salt into a ball mill jar, then add alcohol for ball milling for 2 hours to obtain a mixture;

[0043] Described molten sal...

Embodiment 2

[0057] A method for preparing polyhedral nano-copper oxide loaded with spherical zinc oxide nanoparticles, specifically comprising the following steps:

[0058] (1) Dissolve 15.1g of copper salt in 125ml of deionized water to make a copper salt aqueous solution with a concentration of 0.5mol / l, then adjust the pH to 6-8 with alkali, and then control the temperature in a constant temperature magnetic stirrer to 60 ℃ constant temperature stirring for 1.5h, then suction filtration, the obtained filter cake was washed 2-3 times with deionized water, and then dried at a controlled temperature of 60 ℃ to obtain a polyhedral nano-copper oxide precursor.

[0059] Described copper salt is copper nitrate trihydrate;

[0060] Described alkali is ammoniacal liquor;

[0061] (2) Put the polyhedral nano-copper oxide precursor obtained in step (1) together with the molten salt into a ball mill jar, then add alcohol for ball milling for 2 hours to obtain a mixture;

[0062] Describ...

Embodiment 3

[0070] A method for preparing polyhedral nano-copper oxide loaded with spherical zinc oxide nanoparticles, specifically comprising the following steps:

[0071] (1) Dissolve 15.1g of copper salt in 125ml of deionized water to make a copper salt aqueous solution with a concentration of 0.5mol / l, then adjust the pH to 6-8 with alkali, and then control the temperature in a constant temperature magnetic stirrer to 60 Stir at a constant temperature of ℃ for 1.5h, then suction filter, wash the obtained filter cake with deionized water for 2-3 times, and then control the temperature at 60℃ for drying to obtain polyhedral nano-copper oxide;

[0072] Described copper salt is copper nitrate trihydrate;

[0073] Described alkali is ammoniacal liquor;

[0074] (2) Put the polyhedral nano-copper oxide precursor obtained in step (1) together with the molten salt into a ball mill jar, then add alcohol for ball milling for 2 hours to obtain a mixture;

[0075] Described molten salt...

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Abstract

The invention discloses a preparation method of polyhedron nano copper oxide of loaded spherical zinc oxide nano particles, which is characterized in that a molten salt method is employed, calcining temperature is controlled at temperature of 450-650 DEG C for calcining to obtain the nano polyhedron copper oxide powder; then the nano polyhedron copper oxide powder is taken as a carrier, a solution evaporation method-calcining process is employed, under room temperature condition, the nano polyhedron copper oxide powder is dispersed to a zinc salt aqueous solution, and is stirred and evaporated, and is calcimined at temperature of 350-500 DEG C to obtain the polyhedron nano copper oxide of loaded spherical zinc oxide nano particles. The preparation method has the advantages of low synthesis temperature, simple operation, uniform chemical component of synthesis powder, good crystal morphology and uniform loading. Through rhodamine B degradation experiment, compared with single nano copper oxide, the catalysis performance is obviously increased.

Description

technical field [0001] The invention relates to a method for preparing polyhedral nano-copper oxide loaded with spherical zinc oxide nanoparticles, belonging to the field of catalyst preparation. Background technique [0002] Nanocatalytic technology is still in its infancy in my country, and currently only TiO 2 A small number of varieties such as catalysis have been industrialized, but with the development of this technology, nano-catalysis technology has shown a good prospect. Nanomaterials have unique crystal structures and surface properties, and compared with traditional catalysts, they have higher catalytic activity and better selectivity. 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 greatly improve reaction efficiency, but even enable reactions that could not be carried out before. As...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/80B01J35/08B01J37/08C02F1/72C02F101/38
Inventor 曾涛李浩白杨韩雪飞
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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