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Flexible filamentous spherical porous amorphous nickel phosphate nanoparticles and preparation method thereof

A Nanoparticle, Nickel Phosphate Technology

Inactive Publication Date: 2018-05-29
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the template method, the template-free method to prepare porous amorphous nickel phosphate compounds with an open framework structure still faces great challenges and many difficulties

Method used

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  • Flexible filamentous spherical porous amorphous nickel phosphate nanoparticles and preparation method thereof
  • Flexible filamentous spherical porous amorphous nickel phosphate nanoparticles and preparation method thereof
  • Flexible filamentous spherical porous amorphous nickel phosphate nanoparticles and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Preparation of Soft Spherical Porous Amorphous Nickel Phosphate Nanoparticles

[0029] Under stirring conditions, add 0.1 ml of 2 mol / L sodium dihydrogen phosphate aqueous solution and 0.1 ml of 2 mol / L nickel nitrate aqueous solution to 7 ml of ethylene glycol solution in sequence, after stirring evenly, add 0.16 ml of 5 mol / liter of sodium hydroxide aqueous solution, continue stirring at room temperature for 20 minutes after the dropwise addition, and obtain the transparent precursor solution of light green soft silk spherical nickel phosphate nanoparticles, wherein the concentrations of sodium dihydrogen phosphate, nickel nitrate, and sodium hydroxide are respectively 0.025 mol / liter, 0.025 mol / liter, 0.1 mol / liter; then the prepared precursor solution was reacted at 160 degrees for 1 hour to obtain the following figure 1 The yellow-green colloidal solution shown in a; after natural cooling at room temperature, the nickel phosphate nanoparticle colloidal solution w...

Embodiment 2

[0031] Preparation of Soft Spherical Porous Amorphous Nickel Phosphate Nanoparticles at Different Reaction Temperatures

[0032] Under stirring conditions, add 0.625 ml of 2 mol / L sodium dihydrogen phosphate aqueous solution and 0.625 ml of 2 mol / L nickel nitrate aqueous solution to 47.75 ml of ethylene glycol solution in turn, after stirring evenly, add 1 ml of 5 mol / liter of sodium hydroxide aqueous solution, continue stirring at room temperature for 20 minutes after the dropwise addition, and obtain the transparent precursor solution of light green soft silk spherical nickel phosphate nanoparticles, wherein the concentrations of sodium dihydrogen phosphate, nickel nitrate, and sodium hydroxide are respectively 0.025 mol / L, 0.025 mol / L, 0.1 mol / L; then divide the reaction precursor solution prepared above into four reaction kettles marked A, B, C, and D, and then put the reaction kettles A, B , C, and D were reacted at 120, 140, 160, and 180 degrees Celsius for 1 hour; Co...

Embodiment 3

[0034] Preparation of Soft Spherical Porous Amorphous Nickel Phosphate Nanoparticles at Different Concentrations of Sodium Dihydrogen Phosphate

[0035] Take 4 reaction kettles and mark them as A, B, C, D respectively, then add 7.69 milliliters of ethylene glycol, 0.05 milliliters of 2 mol / liter sodium dihydrogen phosphate aqueous solution, 0.1 milliliter of 2 mol / liter sodium dihydrogen phosphate to A under rapid stirring conditions liter nickel nitrate aqueous solution, and finally add 0.16 ml 5 mol / l sodium hydroxide aqueous solution dropwise; add 7.64 ml ethylene glycol, 0.1 ml 2 mol / l sodium dihydrogen phosphate aqueous solution, 0.1 ml 2 mol / l nickel nitrate solution to B aqueous solution, and finally add 0.16 ml of 5 mol / L sodium hydroxide aqueous solution dropwise; add 7.54 ml of ethylene glycol, 0.2 ml of 2 mol / L sodium dihydrogen phosphate aqueous solution, and 0.1 ml of 2 mol / L nickel nitrate aqueous solution to C, and finally Add 0.16 ml of 5 mol / L sodium hydroxide...

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Abstract

The invention relates to flexible filamentous spherical porous amorphous nickel phosphate nanoparticles and a preparation method thereof, and particularly provides a method, which is simple, convenient and practical, low in cost, rapid and efficient, and template-free, for preparing the flexible filamentous spherical porous amorphous nickel phosphate nanoparticles; the product is obtained by taking nickel nitrate, sodium dihydrogen phosphate and sodium hydroxide, which are low in price and easy to obtain, as raw materials, taking a mixed solution of water and ethylene glycol as a solvent, andcarrying out a reaction at a certain temperature; the product is the spherical porous amorphous nickel phosphate nanoparticles which have an open skeleton structure and are formed by accumulation of filamentous particles. The flexible filamentous spherical porous amorphous nickel phosphate nanoparticles obtained by the method have the advantages of being high in yield, easy to collect, good in stability, large in specific surface area, high in catalytic activity, and the like, have good catalytic characteristic in catalytic degradation of methylene blue and a catalytic hydrogenation reaction of p-nitrophenol, and can be recycled for a plurality of times. Therefore, an important material basis is provided for practical applications such as catalysis, epoxidation, hydrogen addition reactions, absorption, pigment and ceramic production.

Description

technical field [0001] The invention relates to a soft spherical porous amorphous nickel phosphate nanoparticle and a preparation method thereof. The prepared soft spherical porous amorphous nickel phosphate nanoparticle has large specific surface area, good stability, open skeleton structure, good catalytic performance, etc. Advantages, it has important application value in photocatalytic dye degradation, nitrophenol catalytic hydrogenation to synthesize aminophenol, etc., and belongs to the field of nano functional material preparation and application. Background technique [0002] Since the discovery of aluminum phosphate molecular sieves (AlPO 4 Since -n), as an important new class of porous materials, metal phosphate compounds have attracted much attention due to their structural diversity and richness of framework elements. In recent years, a large number of phosphate compounds with novel structures have been synthesized by hydrothermal and sol-gel methods in the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B25/37B82Y30/00
CPCC01B25/37C01P2002/80C01P2004/04C01P2004/32C01P2004/64C01P2006/12C01P2006/16
Inventor 张哲李村成董亚男韦云威张垒李月花刘其生
Owner UNIV OF JINAN
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