Zinc oxide titanium nano sol wrapped by rare earth metal organic complex and preparation method thereof

A technology of organic complexes and rare earth metals, applied in radiation-absorbing coatings, coatings, energy wastewater treatment, etc., can solve problems that affect the service life of coatings and solar panels, reduce energy utilization, yellowing or degradation, etc. , to achieve the effect of improving solar energy utilization, avoiding energy waste, and increasing transmittance

Active Publication Date: 2022-05-17
JOLYWOOD SUZHOU SUNWATT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, the absorbed ultraviolet light is released in the form of heat, which will cause energy waste and reduce energy utilization; on the other hand, organic ultraviolet absorbers are still prone to yellowing or degradation over time, which will affect coatings and solar panels. service life

Method used

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  • Zinc oxide titanium nano sol wrapped by rare earth metal organic complex and preparation method thereof
  • Zinc oxide titanium nano sol wrapped by rare earth metal organic complex and preparation method thereof
  • Zinc oxide titanium nano sol wrapped by rare earth metal organic complex and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The preparation method of the zinc oxide-titanium nano-sol wrapped by a rare earth metal organic complex is as follows:

[0043] Add 250 g of absolute ethanol to the reactor, slowly add 40 g of isopropanol to the absolute ethanol, then add 20 g of zinc acetate, stir to dissolve, add 60 g of titanium tetraisopropoxide, and stir for 30 minutes to obtain a reaction solution. Then mix 18mL of water, 15mL of hydrochloric acid and 70mL of absolute ethanol evenly, and slowly add it dropwise to the reaction solution, stir for 24 hours, then raise the temperature to 80°C, and react for 2 hours, then add 3mL of 3-aminopropyltrimethoxy Silane, stirred for 12 hours, after centrifugal precipitation, added absolute ethanol and isopropanol to dissolve, then added 0.5g europium nitrate and 0.5g ytterbium nitrate, reacted at 80°C for 2h, then added 20g hexamethylenetetramine, 80 ℃ for 5 hours; after cooling down to room temperature, lyophilized for 24 hours to obtain Zn(x)Ti(y)O(x+2y): ...

Embodiment 2

[0045] The preparation method of the zinc oxide-titanium nano-sol wrapped by a rare earth metal organic complex is as follows:

[0046] Add 250 g of absolute ethanol to the reactor, slowly add 40 g of isopropanol to the absolute ethanol, add 30 g of zinc nitrate, stir to dissolve, then add 40 g of tetrabutoxytitanium, and stir for 30 minutes to obtain a reaction solution. After mixing 18mL of water, 15mL of hydrochloric acid and 70mL of absolute ethanol, slowly add it dropwise to the reaction solution, stir for 24 hours, then raise the temperature to 80°C, and react for 2 hours, then add 3mL of 3-aminopropyltrimethoxysilane , stirred for 12 hours, centrifuged and precipitated, added absolute ethanol and isopropanol to dissolve, then added 0.6g neodymium nitrate and 1g ytterbium nitrate, reacted at 80°C for 2h, then added 20 acetylacetone, and reacted at 80°C for 5h; After room temperature, lyophilize and dry for 24 hours to obtain Zn(x)Ti(y)O(x+2y):Nd 3+ -Yb 3+ Organic compl...

Embodiment 3

[0048] The preparation method of the zinc oxide-titanium nano-sol wrapped by a rare earth metal organic complex is as follows:

[0049] Add 250 g of absolute ethanol to the reactor, slowly add 40 g of isopropanol to the absolute ethanol, add 30 g of zinc nitrate, stir to dissolve, then add 40 g of tetrabutoxytitanium, and stir for 30 minutes to obtain a reaction solution. After mixing 18mL of water, 15mL of hydrochloric acid and 70mL of absolute ethanol, slowly add it dropwise into the reaction solution, stir for 24 hours, then raise the temperature to 80°C, react for 2 hours, then add 3mL of tert-butylamine, stir for 12 hours, centrifuge and precipitate, Add absolute ethanol and isopropanol to dissolve, then add 0.5g ytterbium nitrate and 1g cerium nitrate, react at 80°C for 2h, then add 20g adipic acid, react at 80°C for 5h; after cooling down to room temperature, lyophilize for 24h , get Zn(x)Ti(y)O(x+2y):Ce 3+ -Yb 3+ Organic complex powder. Zn(x)Ti(y)O(x+2y):Ce 3+ -Yb ...

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Abstract

The invention relates to a zinc oxide-titanium nano-sol wrapped by a rare earth metal organic complex and a preparation method thereof. The preparation method comprises the following steps: step 1, adding a zinc precursor and a titanium precursor into a reaction solvent, stirring, and mixing uniformly , to obtain a mixed solution; step 2, adding the catalyst aqueous solution dropwise to the mixed solution, and preparing zinc oxide titanium nanoparticles by sol-gel reaction; step 3, after superdispersing the zinc oxide titanium nanoparticles, performing surface modification Step 4, add rare earth metal organic complex, continue the reaction, and dry to obtain zinc oxide titanium nano-sol wrapped by rare earth metal organic complex with excellent transparency, down-conversion function and ultraviolet cut-off function. After the prepared zinc oxide-titanium nano-sol wrapped by the rare earth metal organic complex is added to the coating for the solar battery back plate, the service life of the solar battery panel can be extended, and the utilization rate of solar energy of the solar battery panel can be improved.

Description

technical field [0001] The invention belongs to the technical field of organic-inorganic hybrid nanomaterials, in particular to a zinc oxide-titanium nano-sol wrapped by a rare earth metal organic complex and a preparation method thereof. Background technique [0002] Today, with the depletion of traditional energy sources such as oil and coal, and the increasingly serious environmental pollution, solar energy, as a new clean energy source, has attracted increasing attention. In order to improve the return on investment of solar panel power generation, the solar panel is required to have a longer service life. A solar panel is usually a laminated structure, mainly including a glass surface layer, an EVA sealing layer, a solar cell, an EVA sealing layer and a solar cell back sheet, and the solar cell is sealed and wrapped by two layers of EVA sealing layer. Among them, the main function of the solar battery back sheet is to improve the overall mechanical strength of the sola...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/32C09D7/62
CPCC09D5/32C09D7/62Y02W10/37
Inventor 林建伟张付特孙海龙
Owner JOLYWOOD SUZHOU SUNWATT
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