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A kind of preparation method of nanometer cuprous oxide catalyst

A nano-cuprous oxide and cuprous oxide technology, which is applied in the direction of copper oxide/copper hydroxide, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc., can solve the problems of not being gentle and environmentally friendly, Achieve good photocatalytic performance, mild reaction conditions and environmental protection

Inactive Publication Date: 2019-04-23
SHENYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current preparation conditions are not mild enough and environmentally friendly

Method used

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  • A kind of preparation method of nanometer cuprous oxide catalyst
  • A kind of preparation method of nanometer cuprous oxide catalyst
  • A kind of preparation method of nanometer cuprous oxide catalyst

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[0030] Such as figure 1 Shown, the preparation method of nano cuprous oxide catalyst provided by the invention comprises as follows:

[0031] S1, dissolving the copper source in distilled water, and then adding a strong alkaline solution to it to obtain copper hydroxide precipitation;

[0032] In the present invention, the strong alkaline solution is a sodium hydroxide solution, of course, the strong alkaline solution may also be a strong alkaline solution such as potassium hydroxide, which is not limited in the present invention. The copper source may be copper chloride, copper nitrate or copper sulfate, wherein the molar ratio of copper element to hydroxide is between 1:8-1:4.

[0033] S2, want to add glucose in the copper hydroxide precipitation that obtains in step S1;

[0034] Preferably, in the present invention, the glucose is D-(+)-glucose. Of course, the glucose may also be other types of glucose, which is not limited in the present invention.

[0035] S3, adding ...

Embodiment 1

[0049] S1. Dissolve copper chloride dihydrate in distilled water, and then add sodium hydroxide solution therein to obtain copper hydroxide precipitation; in this embodiment, the moles of copper and sodium (ie, copper and hydroxide) The ratio is 1:4,

[0050] S2, want to add D-(+)-glucose in the copper hydroxide precipitation obtained in step S1;

[0051] S3. Add [Emim]Br to the mixture obtained in step S2, wherein the [Emim]Br concentration of the mixture in step S3 is 0.05mol / L;

[0052] S4. Insulating the mixture obtained in step S3 under water bath conditions to obtain cuprous oxide;

[0053] In the present invention, a water bath is used to keep warm the mixture obtained in step S3, wherein the temperature of the water area is 60°C. The processing time was 20 minutes.

[0054] S5. Washing the prepared pure cuprous oxide several times with distilled water and alcohol respectively, and then vacuum-drying the cleaned sample to finally obtain cuprous oxide. Then, in a vac...

Embodiment 2

[0056] S1, dissolving copper chloride dihydrate in distilled water, and then adding sodium hydroxide solution thereto to obtain copper hydroxide precipitation; in this embodiment, the moles of copper and sodium (ie copper and hydroxide) The ratio is 1:6,

[0057] S2, want to add D-(+) glucose to the copper hydroxide precipitation obtained in step S1;

[0058] S3. Add [Emim]Br to the mixture obtained in step S2, wherein the [Emim]Br concentration of the mixture in step S3 is 0.10mol / L;

[0059] S4. Insulating the mixture obtained in step S3 under water bath conditions to obtain cuprous oxide;

[0060] In the present invention, a water bath is used to keep warm the mixture obtained in step S3, wherein the temperature of the water area is 50°C. The processing time was 30 minutes.

[0061] S5. Washing the prepared pure cuprous oxide several times with distilled water and alcohol respectively, and then vacuum-drying the cleaned sample to finally obtain cuprous oxide. Then, in a...

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Abstract

The invention provides a method for preparing a nanometer cuprous oxide catalyst, which includes the following steps: S1. Dissolve the copper source in distilled water, and then add a strong alkaline solution thereto to obtain copper hydroxide precipitation; S2. In the prepared Add glucose to the copper hydroxide precipitation; S3. Add [Emim]Br (1-ethyl-3-methylimidazole bromide) to the mixture obtained in step S2; S4. Add the mixture obtained in step S3 under water bath conditions. The mixture is incubated to obtain cuprous oxide; S5, clean the prepared pure cuprous oxide nanoparticles, and then vacuum-dry the cuprous oxide nanoparticles. The preparation method of nanometer cuprous oxide catalyst provided by the invention has mild reaction conditions and is environmentally friendly, and the cuprous oxide prepared by the method of the invention has different morphologies and good photocatalytic performance.

Description

technical field [0001] The invention relates to a preparation method of a nano cuprous oxide catalyst. Background technique [0002] In the field of modern nanotechnology, nanomaterials have attracted people's attention because of their excellent physical and chemical properties, especially in the field of structure and control of nanomaterials. Nanomaterials have broad application prospects in the fields of optics, catalytic science, and electrochemistry. [0003] Cuprous oxide is an important P-type semiconductor with a direct bandgap of 2.17eV. It is widely used in solar energy conversion, photocatalysis, lithium-ion battery electrodes, and magnetic storage devices. In addition, cuprous oxide is also an ideal material for studying the shape evolution of microcrystalline materials and nanocrystals. [0004] At present, people are trying to study the morphology control of cuprous oxide in the synthesis process. The morphology structure includes regular octahedral structur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G3/02B01J23/72
CPCC01G3/02B01J23/72C01P2004/32C01P2004/03C01P2002/84C01P2002/72C01P2004/41B01J35/39
Inventor 戚克振白书崇郭宇刚陈科
Owner SHENYANG NORMAL UNIV
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