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

A technology of metal ions and metal ion salts, applied in the direction of copper sulfide, nanotechnology for materials and surface science, nanotechnology, etc., can solve the problems of large doping amount, easy agglomeration, and long drying time of water-based coatings. Enhanced carrier absorption, high visible light transmittance, and high visible light transmittance

Active Publication Date: 2020-11-06
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 nanosheet with near-infrared shielding function and preparation method thereof
  • Metal ion doped copper sulfide nanosheet with near-infrared shielding function and preparation method thereof
  • Metal ion doped copper sulfide nanosheet 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 nanosheet with a near-infrared shielding function and a preparation method of the metal ion doped copper sulfide nanosheet. The preparation method comprises the following steps: firstly, adding hexadecylamine into an organic solvent at room temperature, and stirring and dissolving under an ultrasonic condition to obtain a solution A; addingcopper nitrate and doped metal ion salt into the solution A, performing ultrasonic dispersion to obtain turbid liquid B, and sealing the turbid liquid B; heating and stirring the sealed turbid liquidB until the turbid liquid B is completely dissolved to obtain a solution C; adding carbon disulfide into the solution C, and carrying out solvothermal reaction at 100-140 DEG C for 6-24 hours; and cooling, washing and drying the reaction product to obtain the metal ion doped copper sulfide nanosheet. The obtained metal ion doped copper sulfide nanosheet is small in particle size, high in near-infrared absorption, high in selective light transmission and easy to control in reaction, the dispersion stability of the product is good, and the metal ion doped copper sulfide nanosheet has potential application value in the aspect of transparent heat insulation coatings.

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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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
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