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A kind of preparation method of silver-aluminum ferrocyanide nanomaterial with core-shell structure

A core-shell structure, potassium ferrocyanide technology, applied in the directions of ferricyanide, nanotechnology, metal cyanide, etc., can solve the problems of complex process steps, unfavorable and dangerous nanomaterials of core-shell structure, etc.

Active Publication Date: 2020-06-12
INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the traditional preparation methods of core-shell nanomaterials have complicated process steps, and some preparation methods even have certain risks, which are not conducive to promoting the large-scale preparation of core-shell nanomaterials.

Method used

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  • A kind of preparation method of silver-aluminum ferrocyanide nanomaterial with core-shell structure
  • A kind of preparation method of silver-aluminum ferrocyanide nanomaterial with core-shell structure

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preparation example Construction

[0021] The invention provides a method for preparing a silver-aluminum ferrocyanide nanomaterial with a core-shell structure, comprising the following steps:

[0022] The silver nitrate solution and the aluminum chloride solution are dropped into the potassium ferrocyanide solution at the same time to carry out a co-precipitation reaction to obtain a core-shell structure silver aluminum ferrocyanide nanomaterial.

[0023] In the present invention, the purity of potassium ferrocyanide in the potassium ferrocyanide solution, silver nitrate in the silver nitrate solution, and aluminum chloride in the aluminum chloride solution is preferably no less than analytical purity. In the present invention, potassium ferrocyanide, silver nitrate and aluminum chloride are preferably dissolved in pure water to obtain potassium ferrocyanide solution, silver nitrate solution and aluminum chloride solution respectively. In the present invention, the concentrations of the potassium ferrocyanide ...

Embodiment 1

[0031] Dissolve analytically pure potassium ferrocyanide, silver nitrate and aluminum chloride (the molar ratio of potassium ferrocyanide, silver nitrate and aluminum chloride is 1:1:1) in purified water to obtain concentrations of 0.1 Potassium ferrocyanide solution, silver nitrate solution and aluminum chloride solution of mol / L; The potassium ferrocyanide solution is placed on the magnetic stirring device, carries out magnetic stirring (rotating speed 60rmp); The silver nitrate solution Drop into the potassium ferrocyanide solution at the same time as the aluminum chloride solution, the dropping rate is 0.05mL / s, carry out the co-precipitation reaction at 25°C until the three solutions are completely mixed, and the precipitation reaction is terminated; turn off the magnetic force Stir, the obtained mixed solution is taken out from the magnetic stirring device, and placed in an ultrasonic vibration cleaner for ultrasonic vibration dispersion for 30 minutes; the obtained dispe...

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Abstract

The invention belongs to the technical field of nano material preparation and in particular relates to a method for preparing a core-shell structure ferrous silver cyanide aluminum nano material. Themethod comprises the following steps: simultaneously dropping a silver nitrate solution and an aluminum chloride solution into a ferrous silver cyanide solution, and carrying out a coprecipitation reaction, thereby obtaining the core-shell structure ferrous silver cyanide aluminum nano material. The method provided by the invention is simple in process, environmentally friendly in material, low incost, controllable in preparation process parameter, stable in product property and possible in on-scale production; the size of the core-shell structure ferrous silver cyanide aluminum nano materialprepared by using the method is 50-150nm, the ferrous silver cyanide aluminum nano material is of a core-shell structure, and the crystallization degree of a core is higher than that of a shell.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a method for preparing a core-shell structure silver aluminum ferrocyanide nanomaterial. Background technique [0002] Ferrocyanide generally has a special color and is often used as a dye (such as ferric ferrocyanide). In recent years, ferrocyanide has also been used in hydrogen storage and secondary ion battery electrodes, drug release and other fields due to its open microstructure. In addition, the researchers found that ferrocyanide has great application potential in the fields of optical sensing and bioimaging detection. [0003] Due to the large specific surface area of ​​nanomaterials and different physical and chemical properties from bulk materials, the preparation of nanomaterials is one of the hot research directions in the current scientific research circle. Since the core-shell structure can bring more functionality to the material, for example, g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01C3/12B82Y40/00
Inventor 韦江程香平张友亮王德康林萍
Owner INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI
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