CN1740095A - The method of structure with same quality and different profile with double formworks synchronously barium salt nano-superstructure - Google Patents
The method of structure with same quality and different profile with double formworks synchronously barium salt nano-superstructure Download PDFInfo
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- CN1740095A CN1740095A CN 200510027806 CN200510027806A CN1740095A CN 1740095 A CN1740095 A CN 1740095A CN 200510027806 CN200510027806 CN 200510027806 CN 200510027806 A CN200510027806 A CN 200510027806A CN 1740095 A CN1740095 A CN 1740095A
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Abstract
The present invention relates to a kind of synthetic method of same quality and different profile barium salt nano-superstructure.Getting clean Medulla Junci is template.Barium salt and the sodium salt solution of preparation 0.2mol/L.Template is put into barium salt solution its rhizome is submerged, take out behind the 3-24h.Water washes out outside barium salt solution, relays in the sodium salt solution again, soaks 24h and takes out.After cleaning template with distilled water and dehydrated alcohol respectively, external product is changed in the dehydrated alcohol, obtain a kind of barium salt nano-superstructure material of pattern.Again it is cut open, change in the dehydrated alcohol and deposit in addition, obtain the barium salt nano-superstructure material of another kind of pattern depositing to product in the root canal.The preparation cost of same quality and different profile barium salt nano-superstructure material of the present invention is cheap, technology is simple, pollution-free, productive rate is high, product has good luminous property, portion of product has more multistage fluorescence spectrum wavelength and intensity, can produce the multicolor fluorescence reflection, the synthetic new way that provides of the control of barium salt nano-superstructure material is provided.
Description
Technical field
The present invention relates to a kind of novel method for preparing same quality and different profile barium salt nano-superstructure material.Be template specifically, assemble the synthetic method of different-shape, identical component barium salt nano-superstructure material that has synchronously with the Medulla Junci that has different structure inside and outside the spontaneous growth.
Background technology
The nano-superstructure material is to construct the special construction material with multi-level hierarchical organization or repetition similar structures that forms by the elementary cell that three-dimensional space has at least one dimension to be in nano-scale range.Because of its dual nature that combines macroscopic special appearance and microcosmic nanostructure has the not available physics of general traditional material, chemical property, thereby show unique light, electricity, magnetic, heat and chemical property, have broad application prospects in industries such as photoelectricity, biology, coating, medicine.The synthetic thinking of its preparation comes from bionical synthetic notion, and promptly the forming process of inorganics under the organism modulation in the mimic biology mineralising finished the synthetic of inorganic materials.Template is to obtain ordered nano superstructure one of effective means the most.Selected template can be solid substrate, single or multiple lift film, organic molecule or the like.Above-mentioned template normally forms by organism or inorganic-organic molecule self-assembly, mainly is to utilize self caused the inducing with guide effect of formation, nucleation, orientation and the growth of product to be come nano materials.For example micro emulsion, micella, liquid crystal, vesica, organic monolayer or multilayer film, various active membrane etc.Its common ground is all to have utilized organism assembling superstructure, organic additive or organic formwork to assemble and induces the synthesis of nano superstructure.Yet, separate with mineral products fully because organism is poisonous and very difficult, easily cause the problem of environmental pollution and product pollution.
Up to now, only control the biomineralization process of barium salt nano-superstructure material as organic additive with two hydrophilic block copolymers (DHBCs).Adopt this method only can prepare the barium salt nano-superstructure material of single shape, and the organic additive that is added in the reaction process is not only poisonous, easier environmental pollution and the product pollution of causing.The present invention proposes with the Medulla Junci that has different structure inside and outside the spontaneous growth is isomery bimodulus plate, can assemble the barium salt nano-superstructure material of preparation different-shape synchronously, and this material has multi-level hierarchical organization feature, therefore compare with similar barium salt nano material, product has good luminous property, portion of product has more multistage fluorescence spectrum wavelength and intensity, can produce the multicolor fluorescence reflection, has broad application prospects.
Summary of the invention
The objective of the invention is to disclose a kind of preparation method of same quality and different profile barium salt nano-superstructure.Can prepare with method of the present invention have different-shape, identical component barium salt nano-superstructure material, mild condition in the whole process of production need not any organics additive, and is pollution-free, meets the environment protection requirement of Sustainable development.
The present invention is through studying discovery for a long period of time, and natural Medulla Junci film is the two-dimensional flow kinety system that is formed jointly with the non-covalent interaction combination by lipid (lipid) and protein.Wherein, lipid molecule is successive bilayer (bilayer) to be arranged, protein molecule then with various forms on lipid bilayer surface or be embedded in wherein.Film has amphiphilic (amphipathic nature), and promptly all membrane structures all are inner hydrophobic (nonpolar), outside hydrophilic (polarity), and have mosaicism, flowability, asymmetry and protein polar feature.Therefore, Medulla Junci has the structure of keeping inside information from outsiders.The present invention utilize structure that Medulla Junci keeps inside information from outsiders with it as bimodulus plate assembly system, add molecular recognition function tight and unique between the Medulla Junci interior molecules, through assembling synchronously, the final barium salt nano-superstructure material that synthesizes same quality and different profile of inducing simultaneously, and product has good luminous property, portion of product has more multistage fluorescence spectrum wavelength and intensity, can produce the multicolor fluorescence reflection.
Concrete technology is as follows:
The first step: get commercially available Medulla Junci and dry, promptly obtain isomery bimodulus plate used in the present invention with distilled water is clean.
Second step: preparation 100mL, concentration is soluble barium salt and the sodium salt of 0.2mol/L, and divides and contain in the beaker of 250mL, sodium salt is sodium sulfate or Sodium chromate.
The 3rd step: the root of isomery bimodulus plate-Medulla Junci that the first step obtained is vertically put into the beaker that fills soluble barium salt solution down, and make its rhizome, take out behind the 3-24h all by the solution submergence.
The 4th step: fall the solution of Medulla Junci outside with distilled water flushing, again it is relayed in the sodium salt solution that second step prepared, soak 3-24h in an identical manner and take out.
The 5th step: respectively with distilled water and dehydrated alcohol wash the 4th the step template-Medulla Junci of being taken out, follow product with the template outside and change in the small beaker that fills dehydrated alcohol and preserve, obtain a kind of barium salt nano-superstructure material of pattern.Cut template then open, be transferred in another small beaker that fills dehydrated alcohol and preserve, obtain the barium salt nano-superstructure material of another kind of pattern depositing to product in the root canal.
Use X-ray powder diffraction (XRD) and scanning electronic microscope (SEM) that the structure and the pattern of product are characterized respectively, XRD result shows product pure (consistent with the JCPDS card), SEM shows that the product particle diameter is all in the 50-500 nanometer, and the pattern difference of template inside and outside obtained product is the barium salt nano-superstructure material of same quality and different profile of the present invention.
The present invention has the following advantages:
1. because the present invention is a Medulla Junci with spontaneous growth is raw material, be mainly derived from China central and west regions, its low price, the source is sufficient, therefore makes production cost of the present invention very cheap.Up to the present, less to the development and use research of Medulla Junci, in a single day present method is applied to scale operation, will play certain pushing effect to the resources effective utilization.
2. present inside and outside different structure because template used in the present invention is natural, and tight and unique molecular recognition inducing function between its interior molecules, present excellent bimodulus plate performance.Utilize its unique isomery bimodulus plate effect, can under normal temperature and pressure conditions, assemble synchronously and synthesize the homogeneity barium salt nano-superstructure material that pattern is kept inside information from outsiders.Only can synthesize single barium salt nano-superstructure material of planting pattern with respect to general single mode plate, the combined coefficient of this template improves greatly.
3. the present invention is simple to operate, and generalization is strong.Only need to adjust metal zwitterion classes of compounds, and maintenance at normal temperatures and pressures, just can utilize the inside and outside different structure of Medulla Junci as the bimodulus plate, synthesize with one-step inducing, make the homogeneity barium salt nano-superstructure material of multiple inside and outside different-shape.
4. the present invention's mild condition in whole process of production need not any organic additive, does not have any pollution, meets the environment protection requirement of Sustainable development.
5. the product of the present invention's preparation has performances such as good light, electricity.Fluorescent spectroscopy is the result show, product has good luminous property, and portion of product has more multistage fluorescence spectrum wavelength and intensity, can produce the multicolor fluorescence reflection.
Description of drawings
Fig. 1 is the shape appearance figure that the scanning electronic microscope (SEM) of the external product of embodiments of the invention 1 obtains
Fig. 2 is the shape appearance figure that the scanning electronic microscope (SEM) of the inside product of embodiments of the invention 1 obtains
Fig. 3 is the structure iron that the X-ray powder diffraction (XRD) of the external product of embodiments of the invention 1 obtains
Fig. 4 is the structure iron that the X-ray powder diffraction (XRD) of the inside product of embodiments of the invention 1 obtains
Fig. 5 is the fluorescence emission spectrogram that two kinds of product excitation wavelengths of embodiment 1 are 276 nanometers
Fig. 6 is the fluorescence emission spectrogram that two kinds of product excitation wavelengths of embodiment 1 are 454 nanometers
Fig. 7 is the fluorescence emission spectrogram of 488 nanometers for the excitation wavelength of two kinds of products of embodiment 1
Embodiment
Embodiment 1:
The first step: get commercially available Medulla Junci, it is used the distilled water cleaned standby seam, promptly obtain Medulla Junci isomery bimodulus plate used in the present invention.
Second step: preparation 100mL concentration is the BaCl of 0.2mol/L
2And Na
2CrO
4The aqueous solution, and divide and contain in the beaker of 250mL.
The 3rd goes on foot: the Medulla Junci (100 ml solns add 8～10) after the first step is cleaned, root is vertically put into downwards and is filled BaCl
2In the beaker of solution, and make its rhizome, take out behind the 24h all by the solution submergence.
The 4th step: the BaCl that falls the Medulla Junci outside with distilled water flushing
2Behind the solution, again Medulla Junci is relayed second and go on foot the Na2CrO that is prepared
4In the solution, take out after soaking 24h in the same manner.
The 5th step: after the Medulla Junci that the 4th step was taken out is cleaned with distilled water and dehydrated alcohol respectively, the product of Medulla Junci outside is changed in the small beaker that fills dehydrated alcohol preserve earlier, obtain a kind of BaCrO of pattern
4The nano-superstructure material.Cut Medulla Junci then open, be transferred in another small beaker that fills dehydrated alcohol and preserve, obtain the BaCrO of another kind of pattern depositing to product in the root canal
4The nano-superstructure material.
Scanning electron microscope result shows that external product is the BaCrO by diameter 80nm, long 290nm
4The serve as reasons bulk BaCrO of long 450nm, wide 150nm of the dendritic structure that accurate nanometer rod assembles, inner product
4The big flaabellum shape nanostructure that lath constitutes.From X-ray powder diffraction figure as can be known, this BaCrO
4Nano-superstructure is a rhombic system, and degree of crystallinity is good, the purity height.Fluorescent spectroscopy is the result show, product excites down at three different wavelength (276,454 and 488 nanometer), can launch the fluorescence response signal of different colours, has multistage fluorescence spectrum wavelength and intensity, can produce the multicolor fluorescence reflection.
Embodiment 2:
With Na
2SO
4Solution replaces Na
2CrO
4Solution, soak time change 3 hours into, and other steps are identical with embodiment 1 with operation.Products therefrom is BaSO
4The nano-superstructure material.Scanning electron microscopic observation shows that external product is the BaSO by diameter 100nm, long 300nm
4The rod-like nano superstructure that accurate nanometer rod assembles, inner product are the BaSO by diameter 50nm, long 480nm
4The array structure that nanofiber assembles.X-ray powder diffraction figure shows, this BaSO
4Nano-superstructure is a rhombic system, and degree of crystallinity is good, the purity height.Fluorescent spectroscopy is the result show, product has good photoluminescence performance.
Claims (1)
1. the method for structure with same quality and different profile with double formworks synchronously barium salt nano-superstructure is characterized in that:
The first step: get commercially available Medulla Junci, it is cleaned with distilled water dry, promptly obtain Medulla Junci isomery bimodulus plate used in the present invention;
Second step: preparation 100mL concentration is barium salt and the sodium salt solution of 0.2mol/L, and it is contained in respectively in the beaker of 250mL; Wherein, sodium salt is sodium sulfate or Sodium chromate;
The 3rd step: the Medulla Junci isomery bimodulus buttress portion that the first step obtained is vertically put into the beaker that fills barium salt solution down, and make its rhizome, take out behind the 3-24h all by the solution submergence;
The 4th step: fall the barium salt solution of template outside with distilled water flushing, again it is relayed in the sodium salt solution that second step prepared, soak 3-24h in an identical manner and take out;
The 5th step: wash the 4th with distilled water and dehydrated alcohol respectively and go on foot the template of being taken out, then the product of template outside is changed in the small beaker that fills dehydrated alcohol and preserve, obtain a kind of barium salt nano-superstructure material of pattern, cut template then open, be transferred in another small beaker that fills dehydrated alcohol and preserve depositing to product in the root canal, obtain the barium salt nano structural material of another kind of pattern; With X-ray powder diffraction and scanning electronic microscope the structure of product and pattern are carried out characterization result respectively and show that product is pure, particle diameter is the 50-500 nanometer, and the pattern difference of the inside and outside product of template is the barium salt nano-superstructure material of same quality and different profile of the present invention.
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| CN200510027806A CN100575261C (en) | 2005-07-18 | 2005-07-18 | The method of structure with same quality and different profile with double formworks synchronously barium salt nano-superstructure material |
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|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892077A (en) * | 2020-07-21 | 2020-11-06 | 中国科学院上海硅酸盐研究所 | Barium sulfate fiber and preparation method thereof |
| CN111910467A (en) * | 2020-07-21 | 2020-11-10 | 中国科学院上海硅酸盐研究所 | Barium sulfate fiber inorganic refractory paper and preparation method and application thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1522953B (en) * | 2003-09-05 | 2010-05-12 | 同济大学 | Preparation method of metal sulfide semiconductor nanocrystalline |
| CN100336585C (en) * | 2003-09-05 | 2007-09-12 | 同济大学 | Bionic nano superstructure material preparation method using white envelope as model |
| CN1528655A (en) * | 2003-10-09 | 2004-09-15 | 同济大学 | Method for preparing one-dimensional nano material using vivi-bean sprouts as template |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892077A (en) * | 2020-07-21 | 2020-11-06 | 中国科学院上海硅酸盐研究所 | Barium sulfate fiber and preparation method thereof |
| CN111910467A (en) * | 2020-07-21 | 2020-11-10 | 中国科学院上海硅酸盐研究所 | Barium sulfate fiber inorganic refractory paper and preparation method and application thereof |
| CN111910467B (en) * | 2020-07-21 | 2021-06-15 | 中国科学院上海硅酸盐研究所 | Barium sulfate fiber inorganic refractory paper and preparation method and application thereof |
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| CN100575261C (en) | 2009-12-30 |
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Granted publication date: 20091230 Termination date: 20120718 |