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Preparation method and application of three-dimensional multicolor CQDs@MeOOH anti-infrared nanometer functional material

A nano-functional, anti-infrared technology, used in multi-color effect coatings, reflective/signal coatings, coatings, etc., can solve the problems of unsatisfactory stability and heat insulation effect, high cost, and improve anti-infrared performance and cost. Low, the effect of improving durability

Inactive Publication Date: 2018-02-09
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic nanomaterials have become the new favorite of heat insulation materials because of their good dispersion and good stability, especially nano-Ti materials. There are many patents in China (CN101381532A, CN102464906A, CN106752565A) using titanium dioxide or chemical reagents as Ti sources. A series of anti-infrared coating materials have also achieved a certain heat insulation effect, but because precious metals are the main components, their cost is relatively high
Some foreign patents such as Japanese patent JP98-1209466, German patent DE1950114 and US patent US5540998 also prepare a series of exothermic coating materials, but their stability and heat insulation effect are not very ideal

Method used

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  • Preparation method and application of three-dimensional multicolor CQDs@MeOOH anti-infrared nanometer functional material
  • Preparation method and application of three-dimensional multicolor CQDs@MeOOH anti-infrared nanometer functional material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1) Configure a sulfuric acid solution with a concentration of 8M;

[0034] 2) Weigh 100 g of the discarded ferrochrome alloy and add it to 100 mL of sulfuric acid solution prepared in step 1), heat to 80° C., and stir for 2 hours to obtain a chromium and iron suspension solution;

[0035] 3) filtering the chromium and iron suspension solution obtained in step 2) to obtain a chromium and iron composite solution;

[0036] 4) the concentration of chromium and iron in the composite solution of chromium and iron measured by atomic absorption is 30g / L and 10g / L respectively;

[0037] 5) Add oxalic acid to the chromium and iron composite solution obtained in step 3) according to the multiple of iron / oxalic acid=1 / 1.2, stir rapidly for 30 minutes to obtain ferrous oxalate precipitation and low iron chromium solution;

[0038] 6) filtering the product obtained in step 5) to obtain low-iron-chromium solution and ferrous oxalate by-product;

[0039] 7) Prepare graphene-based car...

Embodiment 2

[0047] 1) Configure a sulfuric acid solution with a concentration of 6M;

[0048] 2) Weighing 100 g of discarded ferrochrome slag and adding it to the sulfuric acid solution prepared in step 1), heating to 80° C., and stirring for 3 hours to obtain a high-concentration chromium and iron suspension solution;

[0049] 3) filtering the chromium and iron suspension solution obtained in step 2) to obtain a chromium and iron composite solution;

[0050]4) the concentration of chromium and iron in chromium and iron composite solution is respectively 80g / L and 30g / L with atomic absorption measurement;

[0051] 5) Prepare graphene-based carbon quantum dots according to the patent CN105694879A method;

[0052] 6) According to the concentration of 30ppm, the graphene-based carbon quantum dots are weighed and added to the iron-chromium solution obtained in step 4), and stirred evenly to obtain a composite solution B;

[0053] 7) Adjust the pH of composite solution B to 3, remove the sup...

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Abstract

The invention discloses a preparation method and application of a three-dimensional multicolor CQDs@MeOOH anti-infrared nanometer functional material and belongs to the technical field of fine chemical engineering materials. The prepared fine chemical engineering can be applied to various equipment and / or buildings needing to be cooled or heat-insulated. Aiming at the limitations that the conventional anti-infrared nanometer functional material is high in cost and low in efficiency and durability, on the basis of preliminary study, due to overall consideration in economy and efficiency aspects, the invention provides a preparation method of the CQDs@MeOOH anti-infrared nanometer functional material. Economically low cost is realized by taking waste ferrochrome, low-value ferrochrome slag and biomass as raw materials; by combining an in-situ seeding method and a hydrothermal aging qualitative process, a novel high-reflectance high-thermal shielding efficiency and ultraviolet-proof CQDs-based composite nanometer functional material with good stability and appropriate forbidden bandwidth is prepared and is a technical improvement of the traditional nanometer functional base material,and the development and application of the material can be facilitated at high efficiency, high stability and low cost.

Description

technical field [0001] The invention relates to a preparation method and application of a three-dimensional multicolor CQDs@MeOOH anti-infrared nano-functional material, which belongs to the technical field of fine chemical materials. The prepared coating material can be applied to various equipment and buildings that require cooling and heat insulation. Background technique [0002] With the advancement of science and technology and the improvement of people's living standards, human consumption of energy is also rising sharply, which will bring about the dual effects of energy shortage and environmental problems, resulting in a vicious circle. In terms of energy, excessive use of energy not only causes waste of resources, but also drives up the price of energy and related products, such as the gradual increase in electricity and fuel costs in China. Science predicts that by 2020, China's oil demand will reach 610 million tons, and the demand for coal will reach 25.61 billi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/33C09D5/29
CPCC09D1/00C09D5/004C09D5/29
Inventor 马伟孟凡庆郭丽燕陈振王墨炎高健
Owner DALIAN UNIV OF TECH
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