Preparation method of artificial nanometer pipes and application of utilizing artificial nanometer pipes as nanometer motors

A nanotube, artificial technology, applied in the fields of nanostructure manufacturing, nanotechnology, nanotechnology, etc., can solve the problems of high cost, small number of synthesis at one time, difficult operation requirements of particle beam jet method, etc., and achieves low cost and size. Control and easy operation

Active Publication Date: 2012-07-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the technical problems of high cost and relatively small number of synthetic micro-nano motors in the existing method of electrochemical

Method used

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  • Preparation method of artificial nanometer pipes and application of utilizing artificial nanometer pipes as nanometer motors
  • Preparation method of artificial nanometer pipes and application of utilizing artificial nanometer pipes as nanometer motors
  • Preparation method of artificial nanometer pipes and application of utilizing artificial nanometer pipes as nanometer motors

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specific Embodiment approach 1

[0018] Specific embodiment one: the preparation method of the artificial nanotube of the present embodiment is carried out according to the following steps:

[0019] 1. Preparation of metal catalytic particles;

[0020] 2. Using porous alumina sheet, polycarbonate (PC) or porous silicon sheet as a template, the polyelectrolyte layer is assembled into the hole of the template to obtain the skeleton of the nanotube;

[0021] 3. Assembling the metal catalyst particles prepared in step 1 onto the skeleton of nanotubes obtained in step 2;

[0022] 4. Dissolving and removing the template treated in step 3 with a template solvent to obtain artificial nanotubes.

[0023] This embodiment uses platinum or silver nanoparticles that catalyze hydrogen peroxide to decompose oxygen, templates for preparing nanotubes, artificial or natural polyelectrolytes for preparing nanotubes as basic materials, and use layer-by-layer assembly methods to combine polyelectrolyte nanotubes with The metal ...

specific Embodiment approach 2

[0024] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the metal catalytic particles in step 1 are platinum particles with a particle size of 3nm to 100nm, silver particles with a particle size of 3nm to 100nm, or platinum or silver particles as the core Microparticles coated with citric acid or polydimethyldiallylammonium chloride with a particle size of 3nm to 100nm. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Embodiment 3: This embodiment differs from Embodiment 1 and Embodiment 2 in that the pore diameter of the porous alumina sheet is 200-400 nm. Others are the same as those in the first and second specific embodiments.

[0026] The porous alumina sheet of this embodiment is a commercially available product.

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Abstract

The invention relates to a preparation method of artificial nanometer pipes and application thereof, in particular to a preparation method of artificial nanometer pipes and application of utilizing the artificial nanometer pipes as nanometer motors, which aim to solve the technical problem that an existing method of synthetizing micro-nanometer motors by means of electrochemical deposition is high in cost, small in one-time synthetizing number and high in required difficulty of particle beam spraying method. The preparation method includes: firstly, preparing metal catalytic particles; secondly, assembling a polyelectrolyte layer into a hole of a template; thirdly, assembling metal catalytic particles; and fourthly, removing the template to obtain an artificial nanometer pipe. The application of utilizing the artificial nanometer pipes as the nanometer motors includes that the artificial nanometer pipes are placed into hydrogen peroxide solution, hydrogen peroxide is catalyzed to generate oxygen gas, air bubbles are used as driving force, and moving of the motor is realized. The preparation method is simple in operation, low in cost and large in one-time synthetizing number, and the size of the artificial nanometer pipes is controllable. Besides, the artificial nanometer pipes can be used as nanometer motors in the medical field.

Description

technical field [0001] The invention relates to a preparation method and application of nanotubes. Background technique [0002] Artificial nano-scale motors are a hot area of ​​nanoscience in recent years. Micro-nano motors are micro-nano devices that catalyze hydrogen peroxide to generate oxygen and use bubbles to propel themselves forward, so that they can swim in a solution containing hydrogen peroxide. . The existing nanomotor synthesis methods include electrochemical deposition and particle beam spraying. However, the cost of micro-nanotubes synthesized by electrochemical deposition is expensive, and it is difficult to synthesize extremely small motors, and the number of synthesis at one time is small; the operation requirements of particle beam spraying are difficult, and only spherical motors can be prepared, and tubular motors cannot be prepared. Contents of the invention [0003] The present invention aims to solve the technical problems of high cost and relati...

Claims

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Application Information

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IPC IPC(8): B82B3/00B82B1/00B82Y15/00B82Y40/00
Inventor 贺强吴志光和文平
Owner HARBIN INST OF TECH
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