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Silver-loaded copper oxide nano composite material preparation method

A nano-composite material, copper oxide technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, chemical/physical processes, etc. areas, the need for roasting, etc., to achieve the effects of low cost, good industrial application prospects, and reduced labor intensity and labor costs

Active Publication Date: 2017-12-01
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the average particle size of the prepared composite material is relatively large, belonging to the micron level, and the preparation process requires roasting
CN105345023A discloses a method for preparing ultrafine silver powder with good dispersibility, but it does not belong to the field of composite materials and has a single purpose

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  • Silver-loaded copper oxide nano composite material preparation method
  • Silver-loaded copper oxide nano composite material preparation method
  • Silver-loaded copper oxide nano composite material preparation method

Examples

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Embodiment 1

[0048] The preparation method of a copper oxide composite material loaded with nano-silver described in this embodiment, the specific steps are as follows figure 1 As shown in the process flow, 32.01gCu(NO 3 ) 2 ·3H 2 O was added to 1000ml of deionized water, and 2.3g of sodium dodecylbenzenesulfonate was added, and stirred evenly. Add 300 ml of 1 mol / L sodium hydroxide solution dropwise, stir electromagnetically for 40 minutes, wash and dry to obtain nano copper oxide. The obtained nano-copper oxide powder is dispersed in 400ml0.2mol / L AgNO 3 In the aqueous solution, sonicate at 60°C for 15 minutes to disperse evenly, and then add 100ml of 1.2mol / L hydrazine hydrate solution dropwise to the above aqueous solution under the condition of sonication. After 15 minutes of reaction, the precipitate is aged and washed. And vacuum drying at 100° C. for 8 h to prepare silver-loaded copper oxide nanomaterials. Its average particle size is about 50nm.

Embodiment 2

[0051] The preparation method of a copper oxide composite material loaded with nano-silver described in this embodiment, the specific steps are as follows figure 1 As shown in the process flow, 21.1gCu(NO 3 ) 2 ·3H 2 O was added to 1000ml of deionized water, and 2.2g of sodium dodecylbenzenesulfonate was added, and stirred evenly. Add 200 ml of 1 mol / L sodium hydroxide solution dropwise, stir electromagnetically for 35 minutes, wash and dry to obtain nano copper oxide. The obtained nano-copper oxide powder is dispersed in 400ml0.2mol / L AgNO 3 In the aqueous solution, sonicate at 60°C for 15 minutes to disperse evenly, and then add 100ml of 1.2mol / L hydrazine hydrate solution dropwise to the above aqueous solution under the condition of sonication. After 15 minutes of reaction, the precipitate is aged and washed. And vacuum drying at 100° C. for 6 h to prepare silver-loaded copper oxide nanomaterials. Its average particle size is about 40nm.

Embodiment 3

[0053] The preparation method of a copper oxide composite material loaded with nano-silver described in this embodiment, the specific steps are as follows figure 1 As shown in the process flow, 12.37gCu(NO 3 ) 2 ·3H 2 O was added to 1000ml of deionized water, and 2.3g of sodium dodecylbenzenesulfonate was added, and stirred evenly. Add 150 ml of 1 mol / L sodium hydroxide solution dropwise, stir electromagnetically for 30 minutes, wash and dry to obtain nano copper oxide. The obtained nano-copper oxide powder is dispersed in 400ml0.2mol / L AgNO 3 In the aqueous solution, sonicate at 60°C for 15 minutes to disperse evenly, and then add 100ml of 1.2mol / L hydrazine hydrate solution dropwise to the above aqueous solution under the condition of sonication. After 15 minutes of reaction, the precipitate is aged and washed. And vacuum drying at 100° C. for 5 h to prepare silver-loaded copper oxide nanomaterials. Its average particle size is about 50nm.

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Abstract

The invention discloses a silver-loaded copper oxide nano composite material preparation method which is applied to the field of catalysis. The method includes steps: taking copper nitrate trihydrate as a copper source and sodium hydroxide solution as a precipitant, adding a surfactant, electromagnetically stirring to obtain a precipitate, washing and drying to obtain nano CuO powder; under the condition of ultrasonic treatment, taking silver nitrate solution as a silver source and hydrazine hydrate as a precipitant to obtain a silver-loaded copper oxide nano composite material through aging, washing and vacuum drying. The preparation method is simple in process, low in cost and low in equipment requirement, an obtained product is small in particle size being about 50nm, large in specific surface area, close in combination of nano silver particles and a copper oxide matrix and great in catalysis performance, problems of complex preparation process, long production period, high production cost and the like of the nano copper oxide composite material are solved, and a promising industrial application prospect is achieved.

Description

technical field [0001] The invention relates to a method for preparing a copper oxide nanocomposite material loaded with silver, and belongs to the technical field of metal matrix composite materials. Background technique [0002] Copper oxide is an important multifunctional fine inorganic material, which is widely used in the fields of ceramics, printing and dyeing, glass and medicine. When copper oxide particles reach the nanoscale, due to their small particle size, large specific surface area, and high catalytic activity, they exhibit unusual characteristics in electricity, magnetism, and catalysis. Therefore, they are widely used in catalysts, gas sensors, magnetic It has been widely used in fields such as phase transition and superconductor, which has attracted people's attention. The catalytic activity and selectivity of solid catalysts can be improved in several ways: (1) supported on finely separated supports. (2) Modification using ionizing radiation. (3) Support...

Claims

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Application Information

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IPC IPC(8): B01J23/89
CPCB01J23/8926
Inventor 于雅楠于秀云张圣强张洪绪
Owner SHANDONG NORMAL UNIV
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