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Preparing method for silver nano tube with controllable pipe diameter

A silver nanotube, silver nanowire technology, applied in nanotechnology, nanotechnology for materials and surface science, nanotechnology, etc., can solve problems such as not much significance, unfavorable treatment, and difficulty in large-scale preparation , to achieve the effect of less damage to the environment and conducive to large-scale production

Inactive Publication Date: 2019-01-15
王子韩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method achieves the preparation of silver nanotubes, it uses expensive copper nanowires as a template, and the high-cost organic amine substance triethylenetetramine is also introduced in the preparation process, which is not conducive to subsequent processing
Canadian patent CA2531175 discloses a preparation method of noble metal nanotubes, which includes the preparation of silver nanotubes, which realizes the preparation of noble metal nanotubes based on composite surfactants, but the nanotubes obtained by this method Neither the size nor the uniformity can meet the actual needs
In addition, the Tsinghua University research team published a research paper titled "Shape-controlled synthesis of silvernanostructures", pointing out that under the action of a DC electric field, RbAg 4 I 5 The thin film is a solid electrolyte, and the preparation of silver nanowires, nanotubes and nanoparticles has been successfully realized. Although this method can also realize the preparation of silver nanotubes, it does not have much significance in practical applications, and it is difficult to achieve large scale preparation

Method used

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  • Preparing method for silver nano tube with controllable pipe diameter
  • Preparing method for silver nano tube with controllable pipe diameter
  • Preparing method for silver nano tube with controllable pipe diameter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Dissolve 1.0g of polyacrylonitrile in 12mL of N,N-dimethylformamide by mechanical stirring as the electrospinning solution; transfer the uniformly prepared electrospinning solution to a 10mL syringe for electrospinning; Among them, the voltage is 10KV, the flow rate is set to 0.2 mL / h, and the distance between the nozzle and the aluminum mesh collector is 10 cm. After a certain period of spinning, the polyacrylonitrile fiber film can be obtained. Use tweezers to remove it from the Separation of aluminum mesh;

[0025] 2) Take 0.5g of silver nitrate and add it to 40mL of the mixed solution of ethylene glycol and glycerol that is uniformly mixed at a volume ratio of 1:1 at 60°C under light-shielding. After the silver nitrate is completely dissolved, an orange-yellow mixed solution is obtained. , and then continue to add 1.0g of PVP to it and stir evenly, then add 0.5mL of sodium bromide aqueous solution with a mass concentration of 5% until it is completely dispersed; ...

Embodiment 2

[0028] 1) Dissolve 0.5g of polyacrylonitrile in 10mL of N,N-dimethylformamide by mechanical stirring as the electrospinning solution; transfer the uniformly prepared electrospinning solution into a 10mL syringe for electrospinning; Among them, the voltage is 10KV, the flow rate is set to 0.3mL / h, and the distance between the nozzle and the aluminum mesh collector is 15cm. After a certain period of spinning, the polyacrylonitrile fiber film can be obtained. Separation of aluminum mesh;

[0029] 2) Take 0.5g of silver nitrate and add it to 40mL of the mixed solution of ethylene glycol and glycerol that is uniformly mixed at a volume ratio of 1:1 at 60°C under light-shielding. After the silver nitrate is completely dissolved, an orange-yellow mixed solution is obtained. , and then continue to add 1.0g of PVP to it and stir evenly, then add 0.5mL of sodium bromide aqueous solution with a mass concentration of 5% until it is completely dispersed;

[0030] 3) Mix the PAN fiber in s...

Embodiment 3

[0032] 1) Dissolve 1.0g of polyacrylonitrile in 12mL of N,N-dimethylformamide by mechanical stirring as the electrospinning solution; transfer the uniformly prepared electrospinning solution to a 10mL syringe for electrospinning; Among them, the voltage is 12KV, the flow rate is set to 0.1mL / h, and the distance between the nozzle and the aluminum mesh collector is 10cm. After a certain period of spinning, the polyacrylonitrile fiber film can be obtained. Use tweezers to remove it from the Separation of aluminum mesh;

[0033] 2) Take 0.5g of silver nitrate and add it to 40mL of the mixed solution of ethylene glycol and glycerol that is uniformly mixed at a volume ratio of 1:1 at 60°C under light-shielding. After the silver nitrate is completely dissolved, an orange-yellow mixed solution is obtained. , and then continue to add 1.0g of PVP to it and stir evenly, then add 0.5mL of sodium bromide aqueous solution with a mass concentration of 5% until it is completely dispersed;

...

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Abstract

The invention discloses a preparing method for a silver nano tube with a controllable pipe diameter. Firstly, a polymer template agent is prepared through an electrospinning method; then, a silver nano wire growth solution is prepared; then, the prepared silver nano wire growth solution and the polymer template agent obtained through electrospinning are mixed and are put into a reaction containerto grow after being evenly mixed; and finally, a product obtained after growth is subjected to separating, centrifuging and washing and is then dispersed in N,N-dimethyl formamide (DMF), the polymer template agent is removed, and the silver nano tube can be obtained. The silver nano tube prepared through the method has the uniform morphology, and the pipe diameter of the silver nano tube can alsobe controllably adjusted; and in addition, the preparing method further has the prominent beneficial effects of being low in cost and high in synthesizing efficiency.

Description

technical field [0001] The invention relates to the field of preparation of novel functional nanometer materials, in particular to a method for preparing silver nanotubes with controllable diameters. Background technique [0002] One-dimensional nanomaterials refer to nanomaterials that have two dimensions in the nanoscale range in space. At present, common one-dimensional nanomaterials include nanowires, nanotubes, nanorods, and nanobelts. [0003] Compared with bulk materials, one-dimensional nanomaterials exhibit many special properties different from conventional materials due to their excellent size effect. Taking noble metal one-dimensional nanomaterials as an example, when the diameter is continuously reduced, when reaching a certain At the critical value, noble metals transform from conductors to semiconductors and then to insulators. Therefore, one-dimensional nanomaterials of noble metals are a major research hotspot at present. [0004] Precious metal one-dimensi...

Claims

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Application Information

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IPC IPC(8): B22F9/24B22F1/00B82Y40/00B82Y30/00
CPCB82Y30/00B82Y40/00B22F9/24B22F1/0547
Inventor 王子韩吕振瑞张亮
Owner 王子韩
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