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Metal ion-doped copper sulfide nanosheets with near-infrared shielding function and preparation method thereof

A technology of metal ions and metal ion salts, applied in copper sulfide, nanotechnology for materials and surface science, nanotechnology, etc., can solve the problems of long drying time, limited construction and use, and large doping amount of water-based coatings , to achieve high visible light transmittance, improve blocking efficiency, and select good transmittance.

Active Publication Date: 2021-07-20
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese invention patent CN107254221B proposes a method for preparing a water-based copper sulfide transparent heat-insulating coating, but the prepared copper sulfide uses polyvinylpyrrolidone as an intercalation modifier, so that it can only be used in water-based coatings, otherwise it cannot be better Dispersion, while the water-based coating takes a long time to dry and the coating film has poor water resistance. These shortcomings limit its construction and use on glass in outdoor environments
Chinese invention patent applications CN107352574A and CN107502085A disclose a method for preparing three-dimensional nano-copper sulfide and its coating by solvothermal method, but its size is large and easy to agglomerate, and mechanical grinding is required before use, so that the quantum effect is not significant. The absorption of visible light is high, the dispersion stability in the medium is not good, and additional dispersants need to be added, and the doping amount is large, which increases the preparation cost

Method used

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  • Metal ion-doped copper sulfide nanosheets with near-infrared shielding function and preparation method thereof
  • Metal ion-doped copper sulfide nanosheets with near-infrared shielding function and preparation method thereof
  • Metal ion-doped copper sulfide nanosheets with near-infrared shielding function and preparation method thereof

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Embodiment 1

[0050] A preparation method of metal ion-doped copper sulfide nanosheets with near-infrared shielding function

[0051] 1) Measure 70 ml of n-hexane and pour it into a 150 ml beaker, weigh 0.9658 g of hexadecylamine and pour it into n-hexane (hexadecylamine concentration 56 mmol / L), ultrasonically dissolve to obtain a colorless transparent solution;

[0052] 2) Weigh 0.2416g of copper nitrate trihydrate (the molar ratio of copper ion to hexadecylamine is 1:4), 0.0037g of gallium acetylacetonate (the atomic ratio of copper / gallium is 100 / 1) and add them into the above transparent solution, and ultrasonically disperse them for five Minutes to obtain a sky blue suspension;

[0053] 3) Seal the above-mentioned sky-blue suspension and put it into a constant temperature water bath magnetic stirring pot to heat and stir in a water bath. The temperature of the water bath pot is 60°C, keep it for 30 minutes, and the solute is completely dissolved;

[0054] 4) Transfer the above soluti...

Embodiment 2

[0056] A preparation method of metal ion-doped copper sulfide nanosheets with near-infrared shielding function

[0057] 1) Measure 70 ml of n-hexane and pour it into a 150 ml beaker, weigh 0.9658 g of hexadecylamine and pour it into n-hexane (hexadecylamine concentration 56 mmol / L), ultrasonically dissolve to obtain a colorless transparent solution;

[0058] 2) Weigh 0.2416g of copper nitrate trihydrate (the molar ratio of copper ion to hexadecylamine is 1:4), 0.0074g of gallium acetylacetonate (the atomic ratio of copper / gallium is 100 / 2) and add them into the above transparent solution, ultrasonically disperse Minutes to obtain a sky blue suspension;

[0059] 3) Seal the above-mentioned sky-blue suspension and put it into a constant temperature water bath magnetic stirring pot to heat and stir in a water bath. The temperature of the water bath pot is 60°C, keep it for 30 minutes, and the solute is completely dissolved;

[0060] 4) Transfer the above solution to the lining o...

Embodiment 3

[0063] A preparation method of metal ion-doped copper sulfide nanosheets with near-infrared shielding function

[0064] 1) Measure 70 ml of n-hexane and pour it into a 150 ml beaker, weigh 0.9658 g of hexadecylamine and pour it into n-hexane (hexadecylamine concentration 56 mmol / L), ultrasonically dissolve to obtain a colorless transparent solution;

[0065] 2) Weigh 0.2416g of copper nitrate (the molar ratio of copper ions to hexadecylamine is 1:4), 0.0041g of indium acetylacetonate (the atomic ratio of copper / indium is 100 / 1) and add them into the above transparent solution, ultrasonically disperse for five minutes, Obtain a sky blue suspension;

[0066] 3) Seal the above-mentioned sky-blue suspension and put it into a constant temperature water bath magnetic stirring pot to heat and stir in a water bath. The temperature of the water bath pot is 60°C, keep it for 30 minutes, and the solute is completely dissolved;

[0067] 4) Transfer the above solution to the lining of a 1...

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Abstract

The invention discloses a metal ion-doped copper sulfide nano sheet with a near-infrared shielding function and a preparation method thereof. In the preparation method, hexadecylamine is added to the organic solvent at room temperature, stirred and dissolved under ultrasonic conditions to obtain solution A; copper nitrate and doped metal ion salts are added to solution A, ultrasonically dispersed to obtain suspension B and sealed ; Heat and stir the sealed suspension B until completely dissolved to obtain a solution C; add carbon disulfide to the solution C, and conduct a solvothermal reaction at 100-140°C for 6-24h; after the reaction product is cooled, washed and dried, the metal ion-doped copper sulfide nanosheets. The obtained metal ion-doped copper sulfide nano sheet has small particle size, strong near-infrared absorption, strong selective light transmission, easy control of reaction, good dispersion stability of the product, and has potential application value in transparent heat-insulating coating.

Description

technical field [0001] The invention relates to copper sulfide nanosheets, in particular to a metal ion-doped copper sulfide nanosheet with a near-infrared shielding function and a preparation method thereof; belonging to the field of building energy conservation. Background technique [0002] With the gradual deepening of human dependence on energy, energy consumption is increasing day by day, and the environmental problems generated in the process of energy exploitation and consumption also pose a severe challenge to human health. Therefore, energy and environmental problems have become constraints to the development of human society. Countries all over the world are constantly exploring environmental protection methods and new energy-saving technologies. To solve the energy problem, on the one hand, we can continuously develop new clean energy, such as water energy, solar energy, wind energy, nuclear energy, etc., which are relatively mature. On the other hand, realizing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G3/12B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G3/12C01P2002/72C01P2004/04C01P2004/20C01P2004/64C01P2006/60
Inventor 高强吴笑梅黄韬
Owner SOUTH CHINA UNIV OF TECH