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Copper oxide-cuprous oxide photocatalyst and preparation method thereof

A technology of cuprous oxide and photocatalyst, which is applied in the field of photocatalysis, can solve the problems of cumbersome operation, high cost, high reaction conditions and device requirements, and achieve the effects of easy-to-obtain raw materials, simple operation and good application potential

Active Publication Date: 2019-06-25
SOUTH CHINA NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Today's semiconductor material preparation methods include: hydrothermal method, sintering method, electrochemical deposition method, etc. Scuderi et al. synthesized a copper oxide / cuprous oxide composite material with excellent photocatalytic performance by sintering method, and Chen et al. synthesized it by hydrothermal method Copper oxide / cuprous oxide photocatalysts have been proposed, but these methods have defects such as high cost, cumbersome operation, high reaction conditions and equipment requirements.

Method used

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  • Copper oxide-cuprous oxide photocatalyst and preparation method thereof
  • Copper oxide-cuprous oxide photocatalyst and preparation method thereof
  • Copper oxide-cuprous oxide photocatalyst and preparation method thereof

Examples

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Effect test

Embodiment 1

[0027] A preparation method of copper oxide-cuprous oxide photocatalyst:

[0028] 1) Dissolve 1.0g of copper sulfate with 80mL of deionized water to obtain a copper sulfate solution, then add 3.2mL of 25% ammonia water dropwise to the copper sulfate solution with a pipette to obtain a precursor solution, and transfer it to a quartz bottle;

[0029] 2) Nitrogen treatment of the quartz bottle for 3~5 minutes;

[0030] 3) After the nitrogen treatment, put it in a constant temperature water bath, and carry out ultraviolet light, and the irradiation intensity of the ultraviolet lamp is 1.00 mW / cm 2 , so that the mixed solution forms a precipitate;

[0031] 4) Centrifuge the precipitate, and then wash the precipitate repeatedly with distilled water until it is neutral, and place the washed precipitate in a constant temperature drying oven to dry to obtain the product cupric oxide-cuprous oxide photocatalyst.

Embodiment 2

[0033] A preparation method of copper oxide-cuprous oxide photocatalyst:

[0034] 1) Dissolve 1.0g of copper sulfate with 80mL of deionized water to obtain a copper sulfate solution, then add 3.2mL of 25% ammonia water dropwise to the copper sulfate solution with a pipette to obtain a precursor solution, and transfer it to a quartz bottle;

[0035] 2) Nitrogen treatment of the quartz bottle for 3~5 minutes;

[0036] 3) After the nitrogen treatment, put it in a constant temperature water bath, and carry out ultraviolet light, and the irradiation intensity of the ultraviolet lamp is 2.00 mW / cm 2 , so that the mixed solution forms a precipitate;

[0037] 4) Centrifuge the precipitate, and then wash the precipitate repeatedly with distilled water until it is neutral, and place the washed precipitate in a constant temperature drying oven to dry to obtain the product cupric oxide-cuprous oxide photocatalyst.

Embodiment 3

[0039] A preparation method of copper oxide-cuprous oxide photocatalyst:

[0040] 1) Dissolve 1.0g of copper sulfate with 80mL of deionized water to obtain a copper sulfate solution, then add 3.2mL of 25% ammonia water dropwise to the copper sulfate solution with a pipette to obtain a precursor solution, and transfer it to a quartz bottle;

[0041] 2) Nitrogen treatment of the quartz bottle for 3~5 minutes;

[0042] 3) After the nitrogen treatment, put it in a constant temperature water bath, and carry out ultraviolet light, and the irradiation intensity of the ultraviolet lamp is 4.01 mW / cm 2 , so that the mixed solution forms a precipitate;

[0043] 4) Centrifuge the precipitate, and then wash the precipitate repeatedly with distilled water until it is neutral, and place the washed precipitate in a constant temperature drying oven to dry to obtain the product cupric oxide-cuprous oxide photocatalyst.

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Abstract

The invention aims to provide a copper oxide-cuprous oxide photocatalyst and a preparation method thereof. The invention adopts a water bath-photochemistry combined preparation method. The synthesizedcopper oxide / cuprous oxide photocatalyst has excellent photocatalytic performance. The preparation method uses ultraviolet light as the light source, and takes a copper salt solution and ammonia water as the raw materials to synthesize the copper oxide-cuprous oxide photocatalyst, and has the advantages of simple operation, easily available raw materials, no use of additive, low cost, mild reaction conditions, no generation of pollutant, and environmental friendliness. The copper oxide-cuprous oxide photocatalyst provided by the invention has excellent performance and strong stability, and has good application potential in photocatalytic degradation of organic pollutants, and has photocatalytic degradation efficiency on organic dye Rhodamine B up to 90% or above under visible light, thushaving good application potential in the photocatalysis field.

Description

technical field [0001] The invention belongs to the technical field of photocatalysis, and in particular relates to a cupric oxide-cuprous oxide photocatalyst and a preparation method thereof. Background technique [0002] Photocatalytic technology uses one-component or multiple-component semiconductor materials as the catalyst carrier, can make full use of sunlight as the light source, has unique advantages such as high conversion rate, low energy consumption, and wide application range. It is one of the hot research fields of environmental pollution control today. [0003] Today's semiconductor material preparation methods include: hydrothermal method, sintering method, electrochemical deposition method, etc. Scuderi et al. synthesized a copper oxide / cuprous oxide composite material with excellent photocatalytic performance by sintering method, and Chen et al. synthesized it by hydrothermal method Copper oxide / cuprous oxide photocatalysts have been proposed, but these meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/72C02F1/30C02F101/30
Inventor 孙丰强林熹
Owner SOUTH CHINA NORMAL UNIVERSITY
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