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Method for preparing magnetic nanotube

A magnetic nanometer and nanotube technology, applied in chemical instruments and methods, single crystal growth, polycrystalline material growth and other directions, can solve problems such as poor control of nanotubes, achieve good promotion and application value, controllable morphology, Effects of Simple Synthesis Techniques

Active Publication Date: 2011-04-20
WANNAN MEDICAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is generally difficult to control in the synthesis of nanotubes

Method used

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  • Method for preparing magnetic nanotube
  • Method for preparing magnetic nanotube
  • Method for preparing magnetic nanotube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Take a purchased 200nm aluminum oxide film 3 and place it in the middle of two quartz reaction cells 1, and inject a concentration of 0.08mol / L CoSO into one quartz reaction cell 4 Solution 2, inject 10g / L sodium borohydride aqueous solution 4 into another quartz reaction cell, let it stand for 8 minutes at room temperature, take off the black nanotube / alumina composite film, and then clean the composite film with distilled water and absolute ethanol 3- 4 times, put into a vacuum drying oven at room temperature and dry to constant weight, partially dissolve with 2mol / L NaOH and use a scanning electron microscope to detect the topography of the nanotube array ( image 3 ); immerse in 2mol / L NaOH for 48 hours until the aluminum oxide film is completely dissolved, then centrifugally wash with distilled water until the pH is neutral, and finally rinse twice with absolute ethanol, put it in a vacuum drying oven at room temperature and dry to constant weight, then Amorphous m...

Embodiment 2

[0029] Take a piece of purchased 200nm aluminum oxide film and place it in the middle of two quartz reaction cells, and one quartz reaction cell is injected with a concentration of 0.06mol / L NiSO 4 Solution, inject 8g / L sodium borohydride aqueous solution into another quartz reaction tank, let it stand for 10 minutes at room temperature, remove the black nanotube / alumina composite film, and then wash the composite film with distilled water and absolute ethanol for 3-4 times , put into a vacuum drying oven at room temperature and dry to constant weight, partially dissolve with 2mol / L NaOH, and use a scanning electron microscope to detect the topography of the nanotube array ( Figure 4 ); immerse in 2mol / L NaOH for 48 hours until the aluminum oxide film is completely dissolved, then centrifugally wash with distilled water until the pH is neutral, and finally rinse twice with absolute ethanol, put it in a vacuum drying oven at room temperature and dry to constant weight, then Am...

Embodiment 3

[0032] Take a piece of purchased 200nm aluminum oxide film and place it in the middle of two quartz reaction cells. One quartz reaction cell is injected with a concentration of 0.05mol / L FeSO 4 Solution, inject 5g / L sodium borohydride aqueous solution into another quartz reaction tank, let it stand at room temperature for 12 minutes, remove the black nanotube / alumina composite film, and then wash the composite film with distilled water and absolute ethanol for 3-4 times , put into a vacuum drying oven at room temperature and dry to constant weight, partially dissolve with 2mol / L NaOH, and use a scanning electron microscope to detect the topography of the nanotube array ( Figure 5 ); immerse in 2mol / L NaOH for 48 hours until the aluminum oxide film is completely dissolved, then centrifugally wash with distilled water until the pH is neutral, and finally rinse twice with absolute ethanol, put it in a vacuum drying oven at room temperature and dry to constant weight, then Amorph...

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Abstract

The invention discloses a method for preparing a magnetic nanotube. The method comprises the following steps of: placing a 100 to 200nm-aperture aluminum oxide film into the middle of two quartz reaction tanks; adding unitary or binary ferric metal ion plating solution with the total concentration of 0.02 to 0.1 mol / L into one quartz reaction tank, and adding 5 to 15g / L sodium borohydride aqueous solution into the other quartz reaction tank; standing at room temperature for 2 to 20 minutes; taking a black nanotube / an aluminum oxide composite membrane down; dissolving the black nanotube / the aluminum oxide composite membrane in 1 to 2mol / L NaOH solution for not less than 5 minutes; and washing the dissolved nanotube for multiple times through distilled water and absolute ethanol, and drying under vacuum at room temperature to constant weight. Compared with the prior art, the method has the advantages that: the nanotube is synthesized by a one-step method, a synthesizing device is simple and the preparation cycle is short. The prepared magnetic nanotube has good loading function due to a porous structure so as to provide magnetic raw materials for the medicine in loading, targeted transport and the like.

Description

Technical field: [0001] The invention relates to a method for preparing nanometer materials, in particular to a method for preparing magnetic nanotubes. Background technique: [0002] At present, the synthesis method of magnetic nanotubes is not very mature, and the template electrochemical deposition method is more reported. However, this method of synthesizing magnetic nanotubes usually requires vacuum spraying conductive film or electroplating on one side of the alumina template. Electrochemical operations can be performed only when the conductive layer is made by coating conductive adhesive. This method has problems such as high equipment requirements, poor practicability, and troublesome post-processing of the obtained materials. At the same time, in order to obtain the tubular structure, some special synthesis techniques and strategies are usually used, which can only be obtained after multi-step synthesis. For example, it is necessary to carry out chemical modificati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/62C30B7/14
Inventor 李祥子魏先文叶寅
Owner WANNAN MEDICAL COLLEGE
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