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Cu-Fe bimetallic nanosheet and preparation method thereof

A bimetallic nano, cu-fe technology, applied in metal processing equipment, nanotechnology, nanotechnology, etc., can solve the problems of high preparation temperature, single surface morphology, and limited development of nano-copper-iron materials, and achieve good repeatability The effect of utilization performance, simple preparation method and mild reaction conditions

Pending Publication Date: 2021-03-16
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation temperature of the nano-copper-iron material obtained by the invention is relatively high, the obtained product is spherical, and the surface morphology is single, which limits its development.

Method used

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  • Cu-Fe bimetallic nanosheet and preparation method thereof
  • Cu-Fe bimetallic nanosheet and preparation method thereof
  • Cu-Fe bimetallic nanosheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of Cu 0.9 Fe 0.1 bimetallic nanosheets

[0031] 1) Prepare 10 mol / L NaOH solution: Dissolve 100g of NaOH in a beaker with deionized water, transfer the solution to a 250mL volumetric flask after cooling, wash, constant volume and shake well before use;

[0032] 2) Prepare 0.5 mol / L CuSO 4 solution, 0.5 mol / L FeCl 3 Solution: 7.98g of CuSO 4 , 8.11g of FeCl 3 Dissolve in different beakers with deionized water, transfer to different 100mL volumetric flasks after complete dissolution, wash, constant volume and shake well before use;

[0033] 3) Take 200mL of the NaOH solution prepared in step 1) in a flask, and put the CuSO prepared in step 2) 4 solution and FeCl 3 Add 9mL and 1mL of the solution into the flask respectively, then add 16.7 mL of anhydrous ethylenediamine and 5 mL of 1 mol / L ascorbic acid solution, mix them evenly and heat in a water bath at 60°C for 0.5h;

[0034] 4) After step 3) the water bath heating is completed, the reaction product...

Embodiment 2

[0036] Preparation of Cu 0.8 Fe 0.2 bimetallic nanosheets

[0037] 1) Prepare a NaOH solution with a substance concentration of 15mol / L: Dissolve 150g of NaOH in a beaker with deionized water, transfer the solution to a 250mL volumetric flask after cooling, wash, constant volume and shake well before use;

[0038] 2) The concentration of the prepared substance is 0.2 mol / L CuCl 2 solution, 0.2 mol / L Fe(NO 3 ) 3 Solution: 2.69g of CuCl 2 , 4.84g of Fe(NO 3 ) 3 Dissolve in different beakers with deionized water, transfer to different 100mL volumetric flasks after complete dissolution, wash, constant volume and shake well before use;

[0039] 3) Take 200mL of the NaOH solution prepared in step 1) in a flask, and take the CuCl prepared in step 2) 2 solution, Fe(NO 3 ) 3 Add 8 mL and 2 mL of the solution into the flask respectively, then add 3.8 mL of anhydrous ethylenediamine and 6 mL of 1 mol / L glucose solution, shake them well and heat in a water bath at 70°C for 1 h; ...

Embodiment 3

[0042] Preparation of Cu 0.7 Fe 0.3 bimetallic nanosheets

[0043] 1) Prepare 20mol / L NaOH solution: Dissolve 200g of NaOH in a beaker with deionized water, transfer the solution to a 250mL volumetric flask after cooling, wash, constant volume and shake well before use;

[0044] 2) Prepare 0.2mol / L CuCl 2 solution, 0.2mol / L Fe(NO 3 ) 3 Solution: 2.69g of CuCl 2 , 4.84 Fe(NO 3 ) 3 Dissolve in different beakers with deionized water, transfer to different 100mL volumetric flasks after complete dissolution, wash, constant volume and shake well before use;

[0045] 3) Take 200mL of the NaOH solution prepared in step 1) in a flask, and put the CuCl prepared in step 2) 2 solution and Fe(NO 3 ) 3 Add 7mL and 3mL of the solution into the flask respectively, then add 2.7mL of anhydrous ethylenediamine and 0.61 mL of hydrazine hydrate solution with a mass fraction of 80%, mix them uniformly and heat in a water bath at 80°C for 1.5h;

[0046] 4) After step 3) the water bath hea...

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Abstract

The invention discloses a Cu-Fe bimetallic nanosheet and a preparation method thereof. The preparation method comprises the following steps of 1, preparing a NaOH solution, specifically, dissolving NaOH in a beaker with deionized water, after the solution is cooled, transferring the solution to a volumetric flask, and conducting washing, volume fixing and uniform shaking for laer use; 2) preparinga Cu salt solution and a Fe salt solution, specifically, respectively dissolving a Cu salt and a Fe salt in different beakers by using deionized water, respectively transferring the two solutions todifferent volumetric flasks after the Cu salt and the Fe salt are completely dissolved, and conducting washing, volume fixing and uniform shaking for later use; 3) putting the NaOH solution prepared in the step 1) into a flask, adding the Cu salt solution and the Fe salt solution prepared in the step 2) into the single-neck flask, then adding a complexing agent and a reducing agent, conducting uniform mixing, and conducting heating in a water bath; and (4) after water bath heating in the step (3) is finished, subjecting a reaction product to centrifugal separation, and conducting drying to obtain a product, namely, the CuFe bimetallic nanosheet. The prepared CuFe bimetallic nanosheet has excellent catalytic performance in the aspect of catalyzing degradation of Congo red, and the degradation rate of the prepared Cu0.6Fe0.4 nanosheet for catalyzing the Congo red reaches 97%.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a Cu-Fe bimetal nanosheet and a preparation method thereof. Background technique [0002] Metals have unique physical and chemical properties, which are widely used in many fields, especially in the field of catalysis. When the size of metal particles is reduced to the nanoscale, the metal material is affected by the size effect, and the physical and chemical properties of the material will be enhanced. Compared with bulk materials, nanomaterials have higher catalytic activity and better electrical, optical, and magnetic properties. With the in-depth research on nanomaterials, scholars have found that bimetallic nanomaterials have better application prospects than single metal nanomaterials. Bimetallic nanomaterials do not simply combine or strengthen the properties of two metals, but through the synergistic effect of the two metals, bimetallic nanomaterials ex...

Claims

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Application Information

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IPC IPC(8): B01J23/745B01J37/10B01J37/16C02F1/00B22F9/24B22F1/00B82Y30/00C02F101/34C02F101/38
CPCB01J23/745B01J37/10B01J37/16C02F1/00B22F9/24B82Y30/00C02F2101/38C02F2101/40C02F2101/34B22F1/0551B22F1/054
Inventor 郑遗凡梁金鑫刘宗健刘凌浩
Owner ZHEJIANG UNIV OF TECH
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