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Fluorine-doped ammonium tungsten bronze/gold nanorod composite near-infrared shielding material and preparation method thereof

A gold nanorod and shielding material technology, which is applied in the field of fluorine-doped ammonium tungsten bronze/gold nanorod composite near-infrared shielding material and its preparation, can solve the problems that the near-infrared shielding performance and heat insulation performance of tungsten bronze materials cannot be improved , to achieve the effect of improving near-infrared shielding and heat insulation performance, low requirements, and improving near-infrared shielding performance and heat insulation performance

Active Publication Date: 2021-08-03
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a fluorine-doped ammonium with near-infrared light absorption performance in the range of 800-2500nm, thereby improving its near-infrared shielding efficiency and heat insulation temperature difference, and expanding the performance and application of materials in the direction of heat insulating glass. Tungsten bronze / gold nanorod composite near-infrared shielding material and its preparation method solve the defect that the current technology cannot improve the near-infrared shielding performance and heat insulation performance of tungsten bronze materials through composite silver oxide and palladium loading

Method used

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  • Fluorine-doped ammonium tungsten bronze/gold nanorod composite near-infrared shielding material and preparation method thereof
  • Fluorine-doped ammonium tungsten bronze/gold nanorod composite near-infrared shielding material and preparation method thereof
  • Fluorine-doped ammonium tungsten bronze/gold nanorod composite near-infrared shielding material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Weigh 0.5g of the fluorine-doped ammonium tungsten bronze powder prepared in Example 5 of Chinese Invention Patent Application 2019109813522, add it to 50mL, 1mol / L 3-mercaptopropionic acid solution, stir for 10h, wash with ethanol and centrifuge three times, After drying under low temperature, the fluorine-doped ammonium tungsten bronze powder modified with 3-mercaptopropionic acid was obtained.

[0035] Dissolve 0.3644g of cetyltrimethylammonium bromide in 10ml of water, add 0.192ml of 0.0195mol / L tetrachloroauric acid solution, and then add 0.6ml of 0.01mol / L sodium borohydride solution. Stir for 2 minutes and let it stand for 40 minutes to prepare solution A, dissolve 0.1234g sodium oleate and 0.9g cetyltrimethylammonium bromide in 50ml water; add 0.36ml0.02M silver nitrate, stir well, let stand 15min; add 1.282ml, 0.0195M tetrachloroauric acid, stir for 15min; add 0.17ml 12.1M hydrochloric acid and stir for 10min; add 0.08ml 0.1M ascorbic acid and stir for 30s; add...

Embodiment 2

[0038] Weigh 0.5g of the fluorine-doped ammonium tungsten bronze powder prepared in Example 5 of Chinese Invention Patent Application 2019109813522, add it to 50mL, 1mol / L 3-mercaptopropionic acid solution, stir for 10h, wash with ethanol and centrifuge three times, After drying under low temperature, the fluorine-doped ammonium tungsten bronze powder modified with 3-mercaptopropionic acid was obtained.

[0039]Dissolve 0.3644g of cetyltrimethylammonium bromide in 10ml of water, add 0.192ml of 0.0195mol / L tetrachloroauric acid solution, and then add 0.6ml of 0.01mol / L sodium borohydride solution. Stir for 2 minutes and stand for 40 minutes to prepare solution A, dissolve 0.1642g of sodium oleate and 0.9g of cetyltrimethylammonium bromide in 50ml of water; add 0.36ml of 0.02M silver nitrate, stir well, and let stand for 15 minutes ; Add 1.282ml, 0.0195M tetrachloroauric acid, stir for 15min; add 0.17ml 12.1M hydrochloric acid and stir for 10min; add 0.08ml 0.1M ascorbic acid an...

Embodiment 3

[0042] Weigh 0.5g of the fluorine-doped ammonium tungsten bronze powder prepared in Example 5 of Chinese Invention Patent Application 2019109813522, add it to 50mL, 1mol / L 3-mercaptopropionic acid solution, stir for 10h, wash with ethanol and centrifuge three times, After drying under low temperature, the fluorine-doped ammonium tungsten bronze powder modified with 3-mercaptopropionic acid was obtained.

[0043] Dissolve 0.3644g of cetyltrimethylammonium bromide in 10ml of water, add 0.192ml of 0.0195mol / L tetrachloroauric acid solution, and then add 0.6ml of 0.01mol / L sodium borohydride solution. Stir for 2 minutes and stand for 40 minutes to prepare solution A, dissolve 0.985g of sodium oleate and 0.9g of cetyltrimethylammonium bromide in 50ml of water; add 0.36ml of 0.02M silver nitrate, stir well, and let stand for 15 minutes ; Add 1.282ml, 0.0195M tetrachloroauric acid, stir for 15min; add 0.17ml 12.1M hydrochloric acid and stir for 10min; add 0.08ml 0.1M ascorbic acid an...

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Abstract

The invention discloses a fluorine-doped ammonium tungsten bronze / gold nanorod composite near-infrared shielding material and a preparation method thereof. The fluorine-doped ammonium tungsten bronze / gold nanorod composite near-infrared shielding material is prepared by the following steps that fluorine-doped ammonium tungsten bronze powder is dispersed in a 3-mercaptopropionic acid solution, drying is carried out to obtain powder, the powder is mixed with a gold nanorod solution, heating is carried out to 30-50 DEG C, stirring and reacting are carried out for 3-5 hours, and a product is washed, centrifuged and dried. According to the fluorine-doped ammonium tungsten bronze / gold nanorod composite near-infrared shielding material, the gold nanorod is matched with the fluorine-doped ammonium tungsten bronze, when the gold nanorod is irradiated under near-infrared light, the gold nanorod can be excited to generate hot electrons, the generated hot electrons can be transferred into the fluorine-doped ammonium tungsten bronze due to energy range difference, so that the carrier solubility in the fluorine-doped ammonium tungsten bronze is increased, further, the plasma resonance effect of the fluorine-doped ammonium tungsten bronze is enhanced, and the near-infrared absorption performance and the heat insulation performance are further enhanced, so that the performance of the tungsten bronze material in the direction of heat insulation glass is improved.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a fluorine-doped ammonium tungsten bronze / gold nanorod composite near-infrared shielding material and a preparation method thereof. Background technique [0002] With the rapid development of industrialization in the 21st century, while people's quality of life has been improved, it is found that the excessive exploitation and use of energy has caused serious environmental and energy problems. After research and investigation, it is found that in my country's building energy Consumption accounts for 30% of the total energy consumption of the society, among which glass is one of the main channels for buildings to obtain and release heat, while ordinary glass has poor thermal insulation performance, causing indoor temperature to rise and causing energy waste. This kind of heat insulation film is coated on ordinary glass to reduce the indoor temperature and reduce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F9/24B82Y40/00
CPCB22F1/0003B22F9/24B82Y40/00
Inventor 吴笑梅高强杜婧娜
Owner SOUTH CHINA UNIV OF TECH