Method for preparing nanometer copper oxide catalyst

A nano-copper oxide and catalyst technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve problems such as complex processes, uneven distribution, and different sizes , achieve large specific surface area, good catalytic effect, and promote adsorption

Active Publication Date: 2013-02-13
江阴智产汇知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation methods of nano-copper oxide include: room temperature solid-state reaction method, reactive magnetron sputtering deposition method, sol-gel method, alcohol thermal method, etc., but the nano-structured copper oxide synthesized in most reports is very easy to agglomerat

Method used

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Examples

Experimental program
Comparison scheme
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Example Embodiment

[0011] Example 1

[0012] The cupric chloride and aluminum chloride were prepared into a solution with a total concentration of 2 mol / L according to the molar ratio of copper:aluminum=2:1; 50% NaOH solution was added dropwise to the solution to adjust the pH value to 8. Add time and stir quickly at 300 rpm for 60 minutes. After the dropwise addition is completed, age at 60 °C for 24 h. After the aging is completed, the solid-liquid is separated. The solid is washed twice with deionized water and dried at 70 °C to obtain copper. Aluminum hydrotalcite, in the process copper ions and aluminum ions form a layered solid with a hydrotalcite-like structure; acrylic acid and water are mixed in a volume ratio of 1:1, according to the amount of 3 mmol of acrylic acid per gram of copper aluminum hydrotalcite, The copper-aluminum hydrotalcite was added to the acrylic acid solution, stirred at a constant temperature of 60 °C for 5 h, aged for 12 h, and then added ammonium persulfate to in...

Example Embodiment

[0014] Example 2

[0015] The copper nitrate and aluminum sulfate were prepared into a solution with a total concentration of 4 mol / L according to the molar ratio of copper:aluminum=4:1; 70% NaOH solution was added dropwise to the solution to adjust the pH value to 10. Rapid stirring at 400 rpm for 120 minutes, aging at 70 °C for 48 h after the completion of the dropwise addition, solid-liquid separation after aging, washing the solid three times with deionized water, and drying at 90 °C to obtain copper-aluminum water Talc, in the process, copper ions and aluminum ions form a layered solid with a hydrotalcite-like structure; acrylic acid and water are mixed in a volume ratio of 1:2, and the copper-aluminum hydrotalcite corresponds to 5 mmol of acrylic acid. Aluminum hydrotalcite was added to the acrylic acid solution, stirred at a constant temperature of 70 °C for 6 h, aged for 24 h, and then added ammonium persulfate to initiate acrylic acid polymerization. The amount of a...

Example Embodiment

[0017] Example 3

[0018] The cupric chloride and aluminum nitrate were configured into a solution with a total concentration of 3 mol / L according to the molar ratio of copper: aluminum = 3: 1; 60% NaOH solution was added dropwise to the solution to adjust the pH value to 9. Rapid stirring at 350 rpm for 120 minutes, aging at 70 °C for 36 h after the dropwise addition, solid-liquid separation after aging, washing the solid with deionized water 3 times, and drying at 80 °C to obtain copper-aluminum water Talc, in the process, copper ions and aluminum ions form a layered solid with a hydrotalcite-like structure; acrylic acid and water are mixed in a volume ratio of 1:2, and the copper-aluminum hydrotalcite corresponds to 4 mmol of acrylic acid. Aluminum hydrotalcite was added to the acrylic acid solution, stirred at a constant temperature of 65 °C for 6 h, aged for 18 h, and then added ammonium persulfate to initiate the polymerization of acrylic acid. The amount of ammonium p...

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Abstract

The invention discloses a method for preparing a nanometer copper oxide catalyst. The method comprises the following steps of: mixing soluble copper salt with soluble aluminium salt to prepare a solution with the total concentration of 2-4mol/L according to molar ratio of 2:1 to 4:1 of copper to aluminium; dipping 50-70 percent of NaOH solution to regulate a pH value to 8-10; aging the solution; performing solid-separation separation; and drying the solution to obtain a copper-aluminium hydrotalcite; mixing crylic acid with the water according to a volume ratio of 1:1 to 1:2; adding the copper-aluminium hydrotalcite into the crylic acid solution in a proportion that each gram of copper-aluminium hydrotalcite corresponds to 3-5mol of the crylic acid; stirring mixture for 5-6h at the constant temperature of 60-70 DEG C; aging the mixture for 12-24h; adding ammonium persulfate into the solution to heat at 60-90 DEG C and react for 8-10h; washing the mixture in a deionization mode; drying the mixture at 70-90 DEG C; grinding the mixture and heating the powder to 600-700 DEG C; and adding the powder to sodium hydroxide solution with the concentration of 20-40 percent after the powder is subjected to vacuum forging, so that the method is simple in process.

Description

technical field [0001] The invention relates to a preparation method of a nano copper oxide catalyst, and the material can be used as a catalyst for organic waste water treatment. Background technique [0002] The novel properties presented by nanomaterials and the important application prospects in the field of optoelectronics have made their research attract great attention from scientists. Nano-copper oxide with high dispersion performance, as an important inorganic nano-material, has a wide range of applications in the fields of magnetic materials, light absorption, chemical activity, thermal resistance and catalysts. It can be used as a catalyst and catalyst carrier, as well as an electrode active material, as well as a coating additive, antibacterial material, and sensing material. At present, the preparation methods of nano-copper oxide include: room temperature solid-state reaction method, reactive magnetron sputtering deposition method, sol-gel method, alcohol ther...

Claims

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Application Information

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IPC IPC(8): B01J23/72B01J35/10C02F1/30
Inventor 马建锋邹静李定龙杨彦
Owner 江阴智产汇知识产权运营有限公司
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