A kind of brush-shaped nano zinc oxide and its preparation method and application

A nano-zinc oxide and brush-like technology, which is applied in the field of functional material preparation, can solve the problems that brush-like nano-zinc oxide has not been reported.

Active Publication Date: 2022-08-09
TIANJIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there is no report on the preparation of brush-like nano-ZnO

Method used

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  • A kind of brush-shaped nano zinc oxide and its preparation method and application
  • A kind of brush-shaped nano zinc oxide and its preparation method and application
  • A kind of brush-shaped nano zinc oxide and its preparation method and application

Examples

Experimental program
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preparation example Construction

[0025] The invention provides a preparation method of brush-shaped nano-zinc oxide, comprising the following steps:

[0026] Mixing inorganic alkali, urea, bacterial cellulose slurry and water to obtain a first mixed solution, and smashing the first mixed solution after freezing into a block to obtain a mashed product;

[0027] The mashed product is mixed with a soluble zinc salt aqueous solution to obtain a second mixed solution; the second mixed solution is subjected to a hydrothermal reaction to obtain the brush-shaped nano-zinc oxide.

[0028] In the present invention, inorganic alkali, urea, bacterial cellulose slurry and water are mixed to obtain a first mixed solution, and the first mixed solution is frozen into a block and then smashed to obtain a mashed product.

[0029] In the present invention, the inorganic base is preferably sodium hydroxide or lithium hydroxide, more preferably sodium hydroxide; the solid content of the bacterial cellulose slurry is preferably 0....

example 1

[0044] Weigh 4.8g of sodium hydroxide and 2.4g of urea and dissolve in 30mL of distilled water, add 30mL of 0.394% bacterial cellulose slurry with a solid content, stir to obtain a first mixed solution, put the first mixed solution in a refrigerator -20 ℃ freeze into a block, and then take it out and mash it to get a mashed product;

[0045] Weigh 2.4g of zinc sulfate heptahydrate, dissolve in 20mL of distilled water to obtain an aqueous solution of zinc sulfate; add the mashed material to the aqueous solution of zinc sulfate, with magnetic stirring simultaneously, to obtain a second mixed solution; the second mixed solution is It was transferred into a 100 mL reaction kettle, and the reaction kettle was placed in a drying box and heated to 150 °C for 3 hours. After the reaction, the obtained reaction solution was suction filtered, and the obtained filter residue was washed with distilled water for many times and placed in a constant temperature drying box at 70 °C. drying to ...

example 2

[0049] Weigh 14.4.g of sodium hydroxide, 7.3g of urea and dissolve in 60mL of distilled water, add 120mL of 0.394% bacterial cellulose slurry with a solid content, stir to obtain a first mixed solution, put the first mixed solution in a refrigerator- Freeze it at 20°C into a block, take it out and mash it to get a mashed product;

[0050] Weigh 7g of zinc sulfate heptahydrate, dissolve it in 60mL of distilled water, and obtain an aqueous solution of zinc sulfate; The gained mash is added to the aqueous solution of zinc sulfate, accompanied by magnetic stirring simultaneously, to obtain a second mixed solution; The second mixed solution is moved into In a 300mL reaction kettle, the reaction kettle was placed in a drying box and heated to 140 °C for 3 hours. After the reaction was completed, the reaction solution was suction filtered, and the obtained filter residue was washed with distilled water for many times, and then placed in a constant temperature drying box at 80 °C to dr...

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Abstract

The invention provides a brush-shaped nano-zinc oxide and a preparation method and application thereof, belonging to the technical field of functional material preparation. The brush-shaped nano-zinc oxide of the present invention includes a brush head and a brush handle; the brush head is a polygonal prism aggregate; the length of the single polygonal prism is 1 μm-9 μm, and the diameter is 0.06 μm-0.8 μm; the brush handle The part is a single columnar structure, the length of the columnar structure is 3 μm-13 μm, and the diameter is 0.4 μm-1.3 μm; the connection part between the brush head and the brush handle is a natural transition. The brush-shaped nano-zinc oxide provided by the invention has a wider ultraviolet absorption range, so it has better ultraviolet light shielding effect, and has potential application value in the field of ultraviolet protection materials.

Description

technical field [0001] The invention relates to the technical field of functional material preparation, in particular to a brush-shaped nano-zinc oxide and a preparation method and application thereof. Background technique [0002] Nano-zinc oxide is a new type of multifunctional inorganic material with a particle size of about 1-100 nm. Due to the miniaturization of grains, the electronic structure and crystal structure of the surface change, resulting in surface effects, volume effects, quantum size effects, macroscopic tunnel effects, high transparency, and high dispersion that macroscopic objects do not have. In recent years, it has been found that nano-zinc oxide exhibits many special functions in catalysis, optics, magnetism, mechanics, etc., making it have important application value in ceramics, chemical industry, electronics, optics, biology, medicine and other fields. Unparalleled specificity and usefulness. Nano-zinc oxide can be used in the fields of textiles, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G9/02B82Y40/00
CPCC01G9/02B82Y40/00C01P2004/30C01P2004/03C01P2002/84C01P2002/72
Inventor 曾威吴景
Owner TIANJIN UNIV OF SCI & TECH
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