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Flower-shaped titanium phosphate microsphere assembled by nanosheets and preparation method thereof

A technology of titanium phosphate microspheres and nanosheets, which is applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of complex operation, high operating environment requirements, and easy hydrolysis, and achieve low reaction temperature, environmental friendliness, Simple operation effect

Active Publication Date: 2021-05-07
陕西立云至彩医疗生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Invention patent CN101033062A discloses a preparation method of layered titanium phosphate, but this method requires high temperature and high pressure environment, high energy consumption and complicated operation
Invention patent CN103626145A discloses a preparation method of flower-shaped titanium phosphate nanomaterials, which overcomes the problems of high requirements on the operating environment and complicated operations. However, this method uses titanium alkoxide as the titanium source, which is prone to hydrolysis, difficult to control the shape and structure, and Poor environmental friendliness and other deficiencies

Method used

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  • Flower-shaped titanium phosphate microsphere assembled by nanosheets and preparation method thereof
  • Flower-shaped titanium phosphate microsphere assembled by nanosheets and preparation method thereof
  • Flower-shaped titanium phosphate microsphere assembled by nanosheets and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0028] The titanium phosphate microspheres in this example are assembled from amorphous titanium phosphate nanosheets. The particle size range of the microspheres is 1.0-3.0 μm, the thickness of the nano-sheets is 5-30 nm, the pores between the nano-sheets are 100-200 nm, and the nano-sheets are radially assembled into a flower-like spherical structure.

[0029] (1) hydrofluoric acid with a mass concentration of 40%, nitric acid with a mass concentration of 68% and deionized water are mixed in a volume ratio of 1:3:6 to obtain pickling solution;

[0030] (2) Use pickling solution to match the size of 2×2×0.01(cm 3 ) titanium plate is pickled, then ultrasonically cleaned and dried with deionized water;

[0031] (3) In 100ml of hydrogen peroxide solution with a mass concentration of 30%, add 2 μl of phosphoric acid with a mass concentration of 85%, so that the phosphate content in the mixed solution reaches 40ppm;

[0032] (4) Put the cleaned titanium plate into the mixed solu...

Embodiment 2

[0035] The titanium phosphate microspheres in this example are assembled from amorphous titanium phosphate nanosheets. The particle size range of the microspheres is 2.0-4.0 μm, the thickness of the nano-sheets is 20-50 nm, the pores between the nano-sheets are 100-200 nm, and the nano-sheets are radially assembled into a flower-like spherical structure.

[0036] (1) hydrofluoric acid with a mass concentration of 40%, nitric acid with a mass concentration of 68% and deionized water are mixed in a volume ratio of 1:3:6 to obtain pickling solution;

[0037] (2) Use pickling solution to match the size of 2×2×0.01(cm 3 ) titanium plate is pickled, then ultrasonically cleaned and dried with deionized water;

[0038] (3) In 100ml mass concentration of 30% hydrogen peroxide solution, add 345mg sodium phosphate, after fully mixing, make the phosphate content in the mixed solution reach 200ppm;

[0039] (4) Put the cleaned titanium plate into the mixed solution, mix it thoroughly by ...

Embodiment 3

[0042] The titanium phosphate microspheres in this example are assembled from amorphous titanium phosphate nanosheets. The particle size range of the microspheres is 1.0-3.0 μm, the thickness of the nano-sheets is 5-30 nm, the pores between the nano-sheets are 100-200 nm, and the nano-sheets are radially assembled into a flower-like spherical structure.

[0043] (1) hydrofluoric acid with a mass concentration of 40%, nitric acid with a mass concentration of 68% and deionized water are mixed in a volume ratio of 1:3:6 to obtain pickling solution;

[0044] (2) Pickling the titanium wire with pickling solution, then ultrasonically cleaning and drying it with deionized water;

[0045] (3) In 100ml of hydrogen peroxide solution with a mass concentration of 30%, add 2 μl of phosphoric acid with a mass concentration of 85%, so that the phosphate content in the mixed solution reaches 40ppm;

[0046] (4) Take 50 mg of cleaned titanium wire and add it to the mixed solution, mix thoroug...

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Abstract

The invention discloses flower-shaped titanium phosphate microspheres assembled by nanosheets. The particle size range of the microspheres is 1.0-4.0 μm, the thickness of the nanosheets is 5-50 nm, and the pores between the nanosheets are 100-200 nm. Radially assembled into a flower-like spherical structure, titanium phosphate microspheres are amorphous. Its preparation method is: add titanium source (titanium plate, titanium wire, titanium powder, etc.) Wash, dry, and you're ready to go. The present invention does not require a high-temperature and high-pressure hydrothermal environment. In a low-temperature environment, flower-shaped titanium phosphate microspheres assembled with nanosheets are obtained in one step through hydrogen peroxide oxidation. The preparation process is simple, low-cost, template-free, and environmentally friendly, and can be widely used Biomedical materials, superhydrophilic / superhydrophobic coatings, solar cells, water treatment catalysts and many other fields.

Description

technical field [0001] The invention relates to a flower-shaped titanium phosphate microsphere assembled by nanosheets and a preparation method of the microsphere. Background technique [0002] As a new type of inorganic material, the main types of titanium phosphate (Ti P) are α, (β+γ), γ, (α+γ), etc., and the particle size is generally below 10 μm. It is non-toxic, acid-resistant, alkali-resistant, It has the advantages of anti-radiation, good whitening effect, heat resistance and flame retardancy. It can be used as a pigment and filler in coatings, rubber, plastics and paper making, and can also be used as a catalyst in petrochemical and organic synthesis. [0003] In recent years, with the continuous deepening of the research on micro-nano microspheres, the synthesis methods of titanium phosphate with various morphologies and structures have been reported one after another and gradually arouse people's widespread interest. The surface morphology of titanium phosphate o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B25/37B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01B25/372C01P2002/72C01P2004/03C01P2004/32C01P2004/61C01P2004/64
Inventor 卢婷利曾庆岩王坤陈强武祥龙汪焰恩
Owner 陕西立云至彩医疗生物科技有限公司