Method for rapidly preparing flexible nanometer assembly body through one-step method

A nano-assembly and flexible technology, applied in the nano-field, can solve the problems such as the preparation process is not simple enough, achieve the effect of reducing costs and steps, and good application prospects

Active Publication Date: 2017-08-18
INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of method needs to prepare low-dimensional nanomaterials first, and then obtain various nanoassemblies through subsequent assembly, and the preparation process is not simple enough.

Method used

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  • Method for rapidly preparing flexible nanometer assembly body through one-step method
  • Method for rapidly preparing flexible nanometer assembly body through one-step method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1) Prepare 10 ml of chloroauric acid solution in a beaker and add it to the rotor;

[0017] 2) Dissolve 20 mg polyvinyl chloride in 5 ml cyclohexanone solution;

[0018] 3) Place the cyclohexanone solution containing polyvinyl chloride on 10 ml chloroauric acid solution to construct the water / cyclohexanone interface;

[0019] 4) Agitate the solution through the rotor to reduce the chloroauric acid to generate gold nanoparticles, and float up to the water / cyclohexanone interface to self-assemble into nano-assemblies;

[0020] 5) After the upper layer of cyclohexanone volatilizes, polyvinyl chloride forms a thin film at the interface, and fixes the nano-gold assembly;

[0021] 6) Taking out the polyvinyl chloride film containing the nano-gold assembly to finally obtain a flexible nano-assembly.

Embodiment 2

[0023] 1) Prepare 20ml of chloroauric acid solution in a beaker;

[0024] 2) Dissolve 50 mg polyvinyl chloride in 10 ml cyclohexanone solution;

[0025] 3) Place the cyclohexanone solution containing polyvinyl chloride on 20 ml of chloroauric acid solution to construct the water / cyclohexanone interface, and seal the beaker with plastic wrap;

[0026] 4) Place the above-mentioned beaker in an ultrasonic instrument for ultrasonication, reduce the chloroauric acid to generate gold nanoparticles, and float up to the water / cyclohexanone interface to self-assemble into a nano-assembly;

[0027] 5) The sealed plastic wrap is removed, and after the upper cyclohexanone volatilizes, the polyvinyl chloride forms a thin film at the interface, and the nano-gold assembly is fixed;

[0028] 6) Taking out the polyvinyl chloride film containing the nano-gold assembly, and treating the film with plasma to finally obtain a flexible nano-assembly.

Embodiment 3

[0030] 1) Prepare 20 ml of chloroauric acid solution in a beaker;

[0031] 2) Dissolve 50 mg polymethyl methacrylate in 10 ml cyclohexanone-toluene mixture;

[0032] 3) Place the cyclohexanone toluene solution containing polymethyl methacrylate on 20 ml of chloroauric acid solution to construct the water / oil interface, and seal the beaker with plastic wrap;

[0033] 4) Place the above-mentioned beaker in an ultrasonic instrument for ultrasonication, so that the chloroauric acid is reduced to generate nano-gold particles, and float up to the water / oil interface to self-assemble into a nano-assembly;

[0034] 5) Remove the sealed preservative film, and after the upper layer of solvent volatilizes, polymethyl methacrylate forms a thin film at the interface, and fixes the nano-gold assembly;

[0035] 6) Take out the polymethyl methacrylate film containing the nano-gold assembly, and process the film by plasma to finally obtain a flexible nano-assembly.

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Abstract

The invention provides a method for rapidly preparing flexible nanometer assembly body through a one-step method. The method concretely comprises the following steps: step (a) preparing a nanometer material precursor water solution; step (b) preparing a solution which is not soluble with the nanometer material precursor water solution mutually and has relatively small density; step (c) adding a high-molecular polymer in the solution prepared in the step (b); step (d) putting the solution prepared in the step (c) above the solution prepared in the step (a) to construct a liquid-liquid interface; step (e) reducing a nanometer material precursor to a nanometer material by utilizing the reducibility of a solvent in the step (c), meanwhile, under the assistance of the manners such as stirring, ultrasound, vibration and the like, promoting the generated nanometer material to self-assemble and form a nanometer assembly body on the liquid-liquid interface; step (f) after evaporating an upper-layer solvent, enabling the high-molecular polymer in an upper-layer solution to form a membrane on an interface, and fixing the nanometer assembly body; and step (g) taking out a polymeric membrane which contains the nanometer assembly body to obtain the flexible nanometer assembly body finally. Compared with the prior art, the method provided by the invention is simple in steps, the nanometer material precursor can directly form the flexible nanometer assembly body through the one-step method, and the method has the advantages of speediness, simpleness, convenience and economy.

Description

technical field [0001] The invention relates to the field of nanotechnology, and more specifically, relates to a method for rapidly preparing a flexible nano assembly in one step. Background technique [0002] Nanomaterials refer to materials that have at least one dimension in the nanoscale range (1-100nm) in three-dimensional space or are composed of them as basic units. The assembled nanomaterials not only have the characteristics of nanomaterials (such as quantum size effect, small size effect, surface effect and macroscopic quantum tunneling effect), but also have new effects caused by the assembly of nanomaterials (such as quantum coupling effect and synergistic effect, etc.) . Through various levels of structural design and chemical modification technology, the active manipulation of nanostructure units, the construction of two-dimensional and three-dimensional advanced structures with new functions and characteristics, not only makes nano-devices possible, but also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B82B3/00B82Y40/00
CPCB82B3/0038B82Y40/00
Inventor 钟鹭斌郑煜铭牛琦峰张欢
Owner INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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