CN1528655A - Method for preparing one-dimensional nano material using vivi-bean sprouts as template - Google Patents
Method for preparing one-dimensional nano material using vivi-bean sprouts as template Download PDFInfo
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- CN1528655A CN1528655A CNA2003101078274A CN200310107827A CN1528655A CN 1528655 A CN1528655 A CN 1528655A CN A2003101078274 A CNA2003101078274 A CN A2003101078274A CN 200310107827 A CN200310107827 A CN 200310107827A CN 1528655 A CN1528655 A CN 1528655A
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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
The present invention relates to a kind of preparation method of monodimension nanometer material, the invention particularly relates to a kind of live body bean sprouts of using as biomembranous bimodulus plate, through inducing and controlling syntheticly, inside and outside template, produce the technology of the monodimension nanometer materials such as bar-shaped, wire, tubulose, lath-shaped, the poly-ball top shape of rod of different-shape.
Background technology
Monodimension nanometer material be a kind of be the material of one-dimentional structure system of the different-shapes such as bar-shaped, wire, tubulose, lath-shaped, the poly-ball top shape of rod of yardstick with nanometer (1/1000000000th meter).This material has good photoelectric characteristic, heat conductivity, magnetism characteristic, mechanical property and catalytic performance etc., and they can be used as the construction unit of nano photoelectric of new generation, electrochemistry, electromechanical device.Therefore the preparation and the application study of such material are one of focuses of investigation of materials in the last few years.The method for preparing at present monodimension nanometer material mainly contains: reverse micelle method, solvent-thermal method, molecular beam epitaxy, anodic oxidation aluminium formwork method, laser or arc evaporation, catalytic pyrolysis method or the like.Reverse micelle method is to utilize surfactant at oil solvent mutually and contain and can form reversed phase micelle between the water of reactant and come nano materials.The forming process of this reversed phase micelle just is equivalent to the pre-organized of organic macromolecule in the biomineralization, the nanoscale region limits of its internal water core the position and the space of inorganic matter nucleation, so the productive rate of this method is very low-cost higher.Solvent-thermal method is meant in specific closed reactor (autoclave), adopts organic solvent as reaction system, by heating to reaction system, in reaction system, produce one in the environment of warm high pressure and a kind of method of carrying out inorganic synthetic and material preparation.But this technology is contaminated environment or cost is higher or complex operation often.
Summary of the invention
The objective of the invention is to disclose a kind of bean sprouts that utilizes as living body biological film template, the technology of monodimension nanometer materials such as synthetic bar-shaped, the wire that makes different-shape, tubulose, lath-shaped, the poly-ball top shape of rod inside and outside this biomembrane template.
In order to achieve the above object, the present invention is performed such.We are through discoverys that study for a long period of time: bone of people and animal and tooth, the heavily fortified point of shellfish biology and hard shell all is the masterpiece of the biomineralization under cell is controlled is the nano material of organism self high-quality of synthesizing.Biomembrane is based upon molecular assembly and arranges on the basis, order and controllability with height, can solve synthetic polymeric membrane and be difficult to many major issues of overcoming so far: for example synthetic polymeric membrane often is difficult to take into account high osmosis and high selectivity, and biomembrane has fabulous infiltration and transmits performance and select separative efficiency.The bean sprouts has distinctive vegetable protein, cellulose etc. and forms biomembrane, it has fabulous transmission performance and separative efficiency too, and be a kind of biofilm structure with bimodulus plate function, the bimodulus plate biomembrane that can directly utilize its compact structure, arrange in order, keep inside information from outsiders, carry out ion information conveyance, energy transmission, finish and handle molecule nucleation, growth, form the monodimension nanometer material of different-shape at last.Concrete technology is as follows:
A. the preparation of template: get commercially available bean sprouts, it is used the distilled water washes clean.
B. the preparation of product: getting concentration is 0.05-0.20mol/L, and corresponding leaded, the cadmium of the ratio of ion molal quantity and product chemical formula, ferrous metal solion and sulfur-bearing, selenium metal compound solution place two containers respectively.Earlier the bean sprouts is soaked in a kind of solution of supporting therein, at room temperature soak and support reaction 12-48 hour, take out, use deionized water rinsing, and then the bean sprouts soaked support in another kind of solution, at room temperature soak equally and supported 12-48 hour, deionized water rinsing is used in taking-up.
C. the acquisition of product: take out the bean sprouts, after cleaning with deionized water and absolute ethyl alcohol respectively, the product with the outside, bean sprouts changes in the absolute ethyl alcohol earlier, obtains a kind of monodimension nanometer material of pattern.Cut the bean sprouts then open, be transferred in another small beaker that fills absolute ethyl alcohol and preserve, obtain the monodimension nanometer material of another kind of pattern depositing to product in the root canal.
By the change bean sprouts soak foster sequencing can be from the bean sprouts target product of inside and outside acquisition different-shape.Use transmission electron microscope (TEM) to observe respectively them, find that the product of inside and outside different pattern is monodimension nanometer material of the present invention, diameter is 30～100nm.From X-ray powder diffraction figure, as can be known, do not have assorted peak in the collection of illustrative plates of above-mentioned product and occur, illustrate that its purity is very high.The ultraviolet-visible spectrum analysis result shows that the absorption maximum band of product is compared with conventional material, in a big way " blue shift " occur, shows tangible quantum size effect.Spectrofluorimetry is the result show, the product of some pattern has photoluminescence performance.
The present invention has following advantage:
1. because the present invention chooses the live body bean sprouts as the biomembrane template, because of live body bean sprouts source wide, low price, in liberal supply, therefore make production cost of the present invention very cheap.
2. because the live body bean sprouts that the present invention adopts as the biomembrane template, having selectivity absorbs and specific functions such as rejecting, permeate and transmit, induce and control, with and the different bimodulus plate effect of the inside and outside wall of biomembrane, can synthesize the monodimension nanometer material for preparing multiple pattern simultaneously, the product that the present invention is made has good and numerous pattern, for the development function material is had laid a good foundation.
3. only need adjust metal zwitterion classes of compounds owing to the present invention, and maintenance at ambient temperature, just can utilize the about different structure in bean sprouts as template, induce, control the synthetic monodimension nanometer material that makes various about different-shapes.Therefore have easy to operate, technology and simple, the free of contamination advantage of equipment, and productive rate is up to 90%.
The specific embodiment
Embodiment 1:
At first, getting commercially available mung bean sprouts, can be that moyashi also can be a mung bean sprouts, and it is used the distilled water washes clean, stand-by.
Then, preparation 100ml (0.1mol/L) FeCl
2The aqueous solution and 0.1mol/LNa
2S aqueous solution 100ml (employing be to analyze pure Na
2S is because Na
2S solution is easy oxidation deterioration in air, so need newly prepare).Place two 250ml beakers in tall form respectively.After above-mentioned commercially available mung bean sprouts (100 ml solns add 8～10) through washing cleaned with deionized water again, root was vertically put into down and is filled Na
2In the beaker of S solution, and make its rhizome, only expose blade all by the solution submergence.Take out behind the 24h, rinse out the Na of outside, bean sprouts with deionized water
2S solution relays and fills FeCl
2In the beaker of solution, soak 24h in an identical manner.
Then, mung bean sprouts is inside and outside black product is cleaned, is also transferred in the absolute ethyl alcohol respectively and preserve.
At last different product inside and outside above-mentioned two is used transmission electron microscope observing pattern and size respectively, external product is a bar-shaped nanostructure, and inner product is the poly-ball top shape nanostructured of rod, meets the characteristic of monodimension nanometer material.
Embodiment 2:
The first step is identical with embodiment 1, earlier with distilled water with the bean sprouts washes clean, stand-by.
Then, preparation 100ml (0.1mol/L) PbCl
2The aqueous solution and 0.2mol/L100ml contain Se
2-The aqueous solution (adopts KBH
4With the Se reaction, generation can provide Se
2-KHSe.Because Se
2-Very easily oxidized in air, so need be at reducing agent KBH
4React under the situation about existing).
Above-mentioned two kinds of solution that prepare are placed two 250ml beakers in tall form respectively.After will cleaning with deionized water through the mung bean sprouts that the first step is handled, at first root is vertically put into down and is filled PbCl again
2In the beaker of solution, and make its rhizome, only expose blade all by the solution submergence.Take out behind the 24h, rinse out the PbCl of outside, bean sprouts with deionized water
2Solution relays another and fills and contain Se
2-In the beaker of solution, soak 24h in an identical manner.
Then the rufous product that mung bean sprouts is inside and outside is cleaned, is transferred in the absolute ethyl alcohol and preserve.Use the inside and outside product pattern of transmission electron microscope observing at last, external product is a bar-shaped nanostructure, and inner product is the tubular nanometer structure.
Embodiment 3:
Earlier with distilled water with the moyashi washes clean, stand-by.
Then, preparation 100ml 0.2mol/L contains Se
2-The aqueous solution (identical with embodiment 2) places the 250ml beaker in tall form.After will cleaning with deionized water through the commercially available moyashi of washes clean, root is vertically put into down and is filled Se again
2-In the beaker of solution, and make its rhizome, only expose blade all by the solution submergence.Take out behind the 24h, rinse out the Se of outside, bean sprouts with deionized water
2-Solution relays in the beaker of cushioning liquid (forming with NaAc and HAc configuration) of the pH=5 that fills 100ml, soaks 24h in an identical manner.
Then the rufous product inside and outside the bean sprouts is cleaned, transferred in the absolute ethyl alcohol and preserve.With product pattern inside and outside the transmission electron microscope observing, external product is the lath-shaped nanostructured, and inner product is a bar-shaped nanostructure.
Claims (4)
1. make the method that template is produced monodimension nanometer material with the live body bean sprouts, it is characterized in that:
A. the preparation of template: get commercially available bean sprouts, it is used the distilled water washes clean;
B. the preparation of product: getting concentration is 0.05-0.20mol/L, and corresponding leaded, the cadmium of the ratio of ion molal quantity and product chemical formula, ferrous metal solion and sulfur-bearing, selenium metal ion solution place two containers respectively; Earlier the bean sprouts is soaked in a kind of solution of supporting therein, at room temperature soak and support reaction 12-48 hour, take out, use deionized water rinsing, and then the bean sprouts soaked support in another kind of solution, at room temperature also soak and support reaction 12-48 hour, deionized water rinsing is used in taking-up;
C. the acquisition of product: the bean sprouts of taking-up, after cleaning with deionized water and absolute ethyl alcohol respectively, the product with the outside, bean sprouts changes in the absolute ethyl alcohol earlier, obtains a kind of monodimension nanometer material of pattern; Cut the bean sprouts then open, be transferred in another small beaker that fills absolute ethyl alcohol and preserve, obtain the monodimension nanometer material of another kind of pattern depositing to product in the root canal.
2. according to claim 1ly make the method that template is produced monodimension nanometer material with the live body bean sprouts, it is characterized in that: the preparation of described product is the different requirements according to the pattern of target product, and foster sequencing is soaked in the change bean sprouts.
3. according to claim 1ly make the method that template is produced monodimension nanometer material with the live body bean sprouts, it is characterized in that: the preparation of described product can also first contain Se at 0.2mol/L
2-Take out after soaking foster 24h in the aqueous solution, rinse out the Se of outside, bean sprouts with deionized water
2-Solution relays in the beaker of the cushioning liquid (forming with NaAc and HAc configuration) that fills pH=5 then, soaks 24h in an identical manner and obtains.
4. according to claim 1ly make the method that template is produced monodimension nanometer material with the live body bean sprouts, it is characterized in that: mung bean sprouts can be selected in described live body bean sprouts, also can select moyashi.
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| CNA2003101078274A CN1528655A (en) | 2003-10-09 | 2003-10-09 | Method for preparing one-dimensional nano material using vivi-bean sprouts as template |
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| CNA2003101078274A CN1528655A (en) | 2003-10-09 | 2003-10-09 | Method for preparing one-dimensional nano material using vivi-bean sprouts as template |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100448523C (en) * | 2006-10-16 | 2009-01-07 | 上海交通大学 | Method for preparing Nano semiconductor particles enhanced white envelope fiber based composite material |
| CN100575261C (en) * | 2005-07-18 | 2009-12-30 | 同济大学 | The method of structure with same quality and different profile with double formworks synchronously barium salt nano-superstructure material |
| CN101008642B (en) * | 2007-01-25 | 2011-04-13 | 上海交通大学 | Preparation method of nanometer semiconductor biocompatible materials |
| CN114850488A (en) * | 2022-05-06 | 2022-08-05 | 中国科学技术大学 | Preparation method of biomass-derived copper nanowire and preparation method of copper current collector |
-
2003
- 2003-10-09 CN CNA2003101078274A patent/CN1528655A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100575261C (en) * | 2005-07-18 | 2009-12-30 | 同济大学 | The method of structure with same quality and different profile with double formworks synchronously barium salt nano-superstructure material |
| CN100448523C (en) * | 2006-10-16 | 2009-01-07 | 上海交通大学 | Method for preparing Nano semiconductor particles enhanced white envelope fiber based composite material |
| CN101008642B (en) * | 2007-01-25 | 2011-04-13 | 上海交通大学 | Preparation method of nanometer semiconductor biocompatible materials |
| CN114850488A (en) * | 2022-05-06 | 2022-08-05 | 中国科学技术大学 | Preparation method of biomass-derived copper nanowire and preparation method of copper current collector |
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