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Preparing method for nanometer copper composite material for catalytic reduction

A composite material, nano-copper technology, applied in the direction of reducing water/sewage treatment, physical/chemical process catalyst, organic compound/hydride/coordination complex catalyst, etc., can solve the problems of poor stability and dispersion, and achieve the reaction Mild conditions, simple preparation method, and solvent-friendly effects

Inactive Publication Date: 2016-01-06
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the active chemical properties of nano-copper, it is quickly oxidized when exposed to air, and there are problems such as poor stability and dispersibility. Therefore, the preparation method of copper nanomaterials with good stability and dispersibility, and controllable size and shape The study of its properties has become a research hotspot in the field of nanomaterials

Method used

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  • Preparing method for nanometer copper composite material for catalytic reduction
  • Preparing method for nanometer copper composite material for catalytic reduction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Preparation of nano-copper composite materials

[0022] Disperse 0.2g of polyetheramine D230 into 50ml of distilled water, ultrasonically dissolve, and divide into two parts for later use. Weigh 0.25g of copper sulfate pentahydrate and 0.08g of sodium hydroxide and dissolve them in two parts of polyetheramine D230 solution respectively. Pour the sodium hydroxide solution into the copper sulfate solution under magnetic stirring at room temperature to form a cloudy copper hydroxide solution. Place this turbid solution in a one-mouth bottle at 80 o In a C oil bath, stir magnetically, quickly weigh 0.11g of catechol and add it to a one-necked bottle, condense and reflux and stir. After 1 hour, weigh 0.03 g of polyetheramine D230 and add it into the reaction solution, and continue stirring. After 6h, the reaction was stopped, and the product was centrifuged, washed, and put into a vacuum drying oven for 30 o C dry.

[0023] (2) Study the catalytic performance of nan...

Embodiment 2

[0026] (1) Preparation of nano-copper composite materials

[0027] Disperse 0.4g of polyetheramine D400 into 100ml of distilled water, ultrasonically dissolve, and divide into two parts for later use. Weigh 0.32g of anhydrous copper sulfate and 0.16g of sodium hydroxide and dissolve them in two parts of polyetheramine D400 solutions respectively, then pour the sodium hydroxide solution into the copper sulfate solution under magnetic stirring at room temperature to prepare the copper hydroxide turbid solution . Place this turbid solution in a one-mouth bottle at 60 o In a C oil bath, stir magnetically, quickly weigh 0.22g of hydroquinone into a single-necked bottle, condense and reflux and stir. After 1 hour, weigh 0.4 g of polyetheramine D400 and add it into the reaction solution, and continue stirring. After 4h, the reaction was stopped, and the product was centrifuged, washed, and put into a vacuum drying oven for 35 o C dry.

[0028] (2) Study the catalytic performance...

Embodiment 3

[0031] (1) Preparation of nano-copper composite materials

[0032] Disperse 0.3g of polyetheramine D230 into 50ml of absolute ethanol, ultrasonically dissolve, and divide into two parts for later use. Weigh 0.32g of anhydrous copper sulfate and 0.16g of sodium hydroxide and dissolve them in two parts of polyetheramine D230 solutions respectively, and pour the sodium hydroxide solution into the copper sulfate solution under magnetic stirring at room temperature to prepare a cloudy solution of copper hydroxide. The cloudy solution was placed in a one-necked bottle, and stirred with a magnetic stirrer at room temperature. Quickly weigh 0.22g of catechol and add it into a one-necked bottle, condense and reflux and stir. After 1 hour, weigh 0.16 g of polyetheramine D230 and add it into the reaction liquid, and continue stirring. After 12h, the reaction was stopped, and the product was centrifuged, washed, and put into a vacuum drying oven for 30 o C dry.

[0033] (2) Study the ...

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Abstract

The invention discloses a preparing method for a nanometer copper composite material for catalytic reduction. The catalytic reduction performance of the composite material is tested. The preparing method includes the steps that polyether amine is dissolved through distilled water or absolute ethyl alcohol for use; copper sulfate and sodium hydroxide are dissolved through polyether amine solutions respectively and mixed, and a copper hydroxide turbidity solution is prepared under the room temperature condition; polyphenol is added into the copper hydroxide turbidity solution to react for 30-120 min at the temperature of 40 DEG C-100 DEG C, the mole ratio of copper hydroxide to polyphenal is 1:0.8-4; then a fixed quantity of polyether amine is added, the mixture reacts for 4-12 h, and the mole ratio of the total quantity of polyether amine to polyphenol is 1:0.8-1.2; the product is washed, centrifuged and dried to obtain the nanometer copper composite material wrapped by a phenol amine polymer. The obtained composite material is used for carrying out a catalytic reduction on p-nitrophenol, methylene blue and rhodamine B. The preparing method is simple, material sources are wide, the reaction condition is mild, solvent is environmentally friendly, and the method is convenient to application and popularization.

Description

technical field [0001] The invention relates to the technical field of nano functional materials, in particular to a method for preparing a nano copper composite material used for catalytic reduction. Background technique [0002] As an important industrial raw material, copper nanomaterials can greatly reduce the cost in the preparation of advanced lubricating oil additives, conductive pastes, high-efficiency catalysts and antibacterial agents, and have broad application prospects. However, due to the active chemical properties of nano-copper, it is quickly oxidized when exposed to air, and there are problems such as poor stability and dispersibility. Therefore, the preparation method of copper nanomaterials with good stability and dispersibility, and controllable size and shape The study of its properties has become a research hotspot in the field of nanomaterials. [0003] The methods developed in recent years to prepare copper nanomaterials mainly include physical vapor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/18C02F1/70
Inventor 姚金水阮子宁刘钦泽刘强刘伟良
Owner QILU UNIV OF TECH