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Method for preparing one-dimensional nano material using vivi-bean sprouts as template

A technology of nanomaterials and bean sprouts, applied in the fields of nanotechnology, nanotechnology, nanostructure manufacturing, etc., can solve the problems of tediousness, environmental pollution, high operation, etc., and achieve the effect of low price, convenient operation, simple process and equipment

Inactive Publication Date: 2004-09-15
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process often pollutes the environment or is costly or cumbersome to operate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] First, take commercially available mung bean sprouts, which can be soybean sprouts or mung bean sprouts, wash them with distilled water, and set aside.

[0015] Then, prepare 100ml (0.1mol / L) FeCl 2 Aqueous solution and 0.1mol / LNa 2 S aqueous solution 100ml (using analytical pure Na 2 S, due to Na 2 S solution is easy to oxidize and deteriorate in the air, so it needs to be newly prepared). Place in two 250ml tall beakers respectively. After washing the above-mentioned commercially available mung bean sprouts (100 ml of solution, add 8 to 10) with deionized water, put the roots down vertically into a container filled with Na 2 S solution in a beaker, and the rhizomes are completely submerged in the solution, only the leaves are exposed. Take it out after 24 hours, and wash off the Na on the outside of the bean sprouts with deionized water 2 S solution, transferred to a container filled with FeCl 2 In the beaker of the solution, soak for 24h in the same way.

[0...

Embodiment 2

[0019] The first step is the same as in Example 1, and the bean sprouts are washed with distilled water for later use.

[0020] Then, prepare 100ml (0.1mol / L) PbCl 2 Aqueous solution and 0.2mol / L100ml containing Se 2- Aqueous solution (using KBH 4 React with Se to generate Se 2- The KHSe. Due to Se 2- It is easily oxidized in the air, so it is necessary to use the reducing agent KBH 4 in the presence of the reaction).

[0021] The two solutions prepared above were placed in two 250ml tall beakers respectively. After the mung bean sprouts treated in the first step are washed with deionized water, they are placed vertically with the roots down and filled with PbCl 2 In a beaker of the solution, the rhizomes are completely submerged in the solution, only the leaves are exposed. Take it out after 24 hours, and rinse off the PbCl on the outside of the bean sprouts with deionized water 2 solution, transferred to another container containing Se 2- In the beaker of the solut...

Embodiment 3

[0024] First wash the soybean sprouts with distilled water and set aside.

[0025] Then, prepare 100ml 0.2mol / L containing Se 2- Aqueous solution (same as Example 2), placed in a 250ml tall beaker. After washing the commercially available soybean sprouts with deionized water, put them vertically with the roots facing down into a container containing Se 2- In a beaker of the solution, the rhizomes are completely submerged in the solution, only the leaves are exposed. Take it out after 24h, rinse the Se on the outside of the bean sprouts with deionized water 2- The solution was transferred to a beaker filled with 100ml of pH=5 buffer solution (configured with NaAc and HAc), and soaked in the same way for 24h.

[0026] Then the reddish-brown product inside and outside the bean sprouts was washed and transferred to absolute ethanol for preservation. The morphology of the internal and external products was observed with a transmission electron microscope. The external products ...

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PUM

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Abstract

The invention is a method to produce one-dimensional nano material by living soy sprout template, firstly washing the soy sprout by distilled water, and then taking the metallic ion solution containing Pb, Cd and Fe and the metallic ion solution containing Se or S to place in two containers, respectively, their concentration are both 0.05-0.20mol / L, and their ion mole number ratio is corresponding to the chemical formula of the result. At first, immersing the soy sprout in one of the two solutions to react at room temperature for 12-48 hours, and then immersing the soy sprout in the other one to react at room temperature for 12-48 hours. At last, transferring the result outside the soy sprout to anhydrous alcohol to obtain a one-dimensional nano material with an appearance. Cutting open the soy sprout, and then transferring the result deposited in root guide tube to the other small beaker holding anhydrous alcohol to obtain a one-dimensional nano material with another appearance. Its cost is low, its technique is simple, it has no pollution and its productivity reaches 90%, and it has various fine performances. It can be widely applied to preparation of nano stick, thread, tube and slat.

Description

technical field [0001] The present invention relates to a preparation method of one-dimensional nanomaterials, in particular to a double template using living bean sprouts as a biofilm, through induction and controlled synthesis, to prepare rod-shaped, linear and tubular shapes with different shapes inside and outside the template , lath, rod poly hair ball and other one-dimensional nanomaterial technology. Background technique [0002] One-dimensional nanomaterials are materials with one-dimensional structural systems with different shapes such as rods, wires, tubes, laths, rods, and balls on the scale of nanometers (1 billionth of a meter). This material has good photoelectric properties, thermal conductivity, magnetic properties, mechanical properties and catalytic properties, etc., and they can be used as building blocks for a new generation of nano-optoelectronic, electrochemical, and electromechanical devices. Therefore, the preparation and a...

Claims

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Application Information

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IPC IPC(8): B82B3/00
Inventor 吴庆生李丽丁亚平郑能武燕云
Owner TONGJI UNIV
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