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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preparation example Construction

[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 nano copper oxide catalyst. The method comprises the following steps that S1, a copper source is dissolved in distilled water, then a strong alkaline solution is added into the mixture, and copper hydroxide sediment is obtained; S2, glucose is added into the prepared copper hydroxide sediment; S3, [Emim]Br(1-ethyl-3-methylimidazole bromide) is added into the mixture obtained in the S2; S4, the mixture obtained in S3 is subjected to heat preservation under the water bath condition, and cuprous oxide is obtained; S5, the prepared pure cuprous oxide nano particles are washed, and then the cuprous oxide nano particles are subjected to vacuum drying. The method for preparing the nano copper oxide catalyst is mild in reaction condition and environmentally friendly, and copper oxide prepared through the method 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
CPCB01J23/72B01J35/004C01G3/02C01P2002/72C01P2002/84C01P2004/03C01P2004/32C01P2004/41
Inventor 戚克振白书崇郭宇刚陈科
Owner SHENYANG NORMAL UNIV
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