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Method for preparing oxide material having biological fine structure by using ultrasound

A technology of fine structure and oxide, applied in the field of preparation of nanomaterials technology, can solve the problems of inability to replicate the fine structure of biological materials, and achieve the effects of less time-consuming, good controllability and simple process

Inactive Publication Date: 2008-09-03
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that due to the inherent defects of the vapor deposition method, a thick layer of silicon dioxide (100-150nm) is deposited on the surface of the butterfly wings, which cannot achieve the replication of the fine structure of biological materials (nanoscale)
So far, there has been no report on the use of ultrasound to replicate the structure of living organisms

Method used

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  • Method for preparing oxide material having biological fine structure by using ultrasound
  • Method for preparing oxide material having biological fine structure by using ultrasound
  • Method for preparing oxide material having biological fine structure by using ultrasound

Examples

Experimental program
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Effect test

Embodiment 1

[0026] (1) Put butterfly wings in 5% HCl solution for 3 hours, rinse with distilled water, and then put them in 6% NaOH solution at 60°C for 3 hours, take them out, rinse with distilled water, and dry them for later use.

[0027] (2) configuration weight percent concentration is 1% KMnO 4 solution.

[0028] (3) Put the pretreated butterfly wings into the above-mentioned beaker filled with potassium permanganate solution, and place it in an ultrasonic generator.

[0029] (4) Then, under the setting of power of 100W, ultrasonication was performed for 3 hours.

[0030] (5) Take out the beaker, take out the biological template-manganese oxide complex, rinse it with distilled water 2-3 times, and dry it.

[0031] (6) Put the butterfly-manganese dioxide composite in a high-temperature sintering furnace with an air atmosphere, remove the template at 500 degrees, and obtain a manganese oxide material with a butterfly multi-layered and multi-dimensional biological fine structure.

...

Embodiment 2

[0036] (1) Put the cotton in 5% HCl solution for 3 hours, rinse it with distilled water, then put it into 10% H2O2 / NaOH solution at 60°C for 3 hours, take it out, rinse it with distilled water, and dry it for later use. Rinse with distilled water and dry for later use.

[0037] (2) configuration weight percent concentration is 5% KMnO 4 solution.

[0038] (3) Put the pretreated cotton into the above-mentioned beaker filled with potassium permanganate solution, and place it in an ultrasonic generator.

[0039] (4) Then, under the setting of power of 400W, sonicate for 6 hours.

[0040] (5) Take out the beaker, take out the biological template-manganese oxide complex, rinse it with distilled water 2-3 times, and dry it.

[0041] (6) Put the butterfly-manganese dioxide composite in a high-temperature sintering furnace in air atmosphere, remove the template at 600 degrees, and obtain a manganese oxide material with a multi-layered and multi-dimensional biological fine structure...

Embodiment 3

[0045] (1) After putting the paulownia wood block into 5% HCl solution for 3 hours, rinse with distilled water, and put 10% H 2 o 2 In a mixed solution with NaOH, treat at 60°C for 3 hours, take it out, rinse it with distilled water, and dry it for later use.

[0046] (2) configuration weight percent concentration is 10% KMnO 4 solution.

[0047] (3) Put the pretreated paulownia wood block into the above-mentioned beaker filled with potassium permanganate solution, and place it in an ultrasonic generator.

[0048] (4) Then, under the setting of power of 600W, sonicate for 10 hours.

[0049] (5) Take out the beaker, take out the biological template-manganese oxide complex, rinse it with distilled water 2-3 times, and dry it.

[0050] (6) Put the wood block-manganese dioxide composite in a high-temperature sintering furnace in an air atmosphere, remove the template at 800 degrees, and obtain a manganese oxide material with a multi-layered and multi-dimensional biological fine ...

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Abstract

A ultrasonic method for preparing oxide material with a biological fine structure by nanophase material technique includes the following steps: (1) adopting animal or plant as a template, and carrying out the surface pretreatment to the animal or the plant; (2) soaking the pretreated animal or plant in the precursor solution; (3) carrying out the ultrasonic treatment to the solution in step (2); and (4) taking out the animal or the plant after ultrasonic treatment is completed, washing with the distilled water, drying, and removing the animal or the plant template to obtain oxide material with butterfly-shaped multi-layer and multi-dimensional biological fine structure. The method adopts animals or plants in the great nature in a large number of varieties as templates, has the advantages of simple process, short preparation time, and maintained integrity of material fine structure, and can be used for duplicating biological template material from macroscopic-scale to micrometer, even the nanometer scale.

Description

technical field [0001] The invention relates to a preparation method in the technical field of nanometer materials, in particular to a method for preparing oxide materials with biological fine structures by using ultrasound. Background technique [0002] The characteristics of various forms, multi-level, multi-dimensional, multi-component, multi-functional and even the integration of structure and function formed by the long-term evolution of natural biological structures play a direct guiding role in the design of advanced materials. The research on composite materials with special structure-special function integration that cannot be synthesized artificially is becoming an important direction of its application. For example, studies have found that the bright colors of butterfly wings are derived from their own multi-level, highly ordered photonic structures, and this structure has a selective response to different gases, which is of great importance for the development of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B13/14B82B3/00C01B33/113C01G45/02C01G23/047C01G9/02C01G37/02
Inventor 朱申敏张荻刘佳
Owner SHANGHAI JIAO TONG UNIV