CN101886331A - In-situ preparation method of functional gold nanoparticle/electrostatic spinning composite nano fibrofelt - Google Patents
In-situ preparation method of functional gold nanoparticle/electrostatic spinning composite nano fibrofelt Download PDFInfo
- Publication number
- CN101886331A CN101886331A CN 201010207752 CN201010207752A CN101886331A CN 101886331 A CN101886331 A CN 101886331A CN 201010207752 CN201010207752 CN 201010207752 CN 201010207752 A CN201010207752 A CN 201010207752A CN 101886331 A CN101886331 A CN 101886331A
- Authority
- CN
- China
- Prior art keywords
- fibrofelt
- solution
- fiber felt
- deionized water
- composite nanometer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Artificial Filaments (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention relates to an in-situ preparation method of a functional gold nanoparticle/electrostatic spinning composite nano fibrofelt, comprising the following steps: (1) preparing polyethyleneimine/polyvinyl alcohol solution to prepare a nano fibrofelt; (2) crosslinking the nano fibrofelt in the vacuum state by using glutaraldehyde steam to obtain water-insoluble electrostatic spinning nano fibrofelt, and then rinsing and drying the water-insoluble electrostatic spinning nano fibrofelt to obtain a hydrophobic nano fibrofelt; (3) preparing aurate solution and NaBH4 or KBH4 solution; and (4) soaking the hydrophobic nano fibrofelt in the aurate solution, rinsing, then soaking in the NaBH4 or KBH4 solution to obtain gold nanoparticle-containing composite nano fibrofelt, and then rinsing and drying the gold nanoparticle-containing composite nano fibrofelt. The method is easy to operate, causes less pollution to the environment and is suitable for the industrial production. Gold nanoparticles are uniformly dispersed in the obtained composite nano fibrofelt without being agglomerated, and the fibrofelt can effectively fix the gold nanoparticles and is easy to recycle.
Description
Technical field
The invention belongs to the preparation field of nanogold particle, particularly relate to the in-situ preparation method that a kind of functional nano gold grain/static spins composite nanometer fiber felt.
Background technology
Nanogold particle all plays an important role in different fields, because of its unique physics, chemical property have caused researcher's extensive concern.Nanogold particle has characteristics such as specific area is big, surface free energy height, is subjected to pursuing of catalytic field scientific worker all the time.Up to now, the process of the preparation nm of gold of multiple maturation has been arranged, as gas evaporation method, solvent reducing process, phase transfer method, sol-gal process, vacuum vapour deposition, hydro-thermal method and local reduction way etc.Because of the defective that nanogold particle is reunited easily, also have manyly about with the relevant reports of adding surfactant, can reach certain purpose of reuniting of preventing, but this has also limited the surface-activity of nanogold particle.Esumi (Kazutaka Hayakawa, Tomokazu Yoshimura, and Kunio Esumi.Preparation of Gold-Dendrimer Nanocomposites byLaser Irradiation and Their Catalytic Reduction of 4-Nitrophenol.Langmuir 2003,19,5517-5521) wait the people to prepare the nm of gold composite nano materials that wraps up based on dendrimer, it has shown good catalytic performance to paranitrophenol, but it is still existing certain defective aspect recycling, the recuperability.
Electrostatic spinning is that a kind of stretching action by high voltage electric field prepares the effective ways of nanometer to the micron-class superfine fiber, as a kind of convenience, nanofiber technology of preparing cheaply, can prepare the nanofiber and the nano structural material of big L/D ratio, high-specific surface area, high porosity.Electrostatic spinning technique is proposed in 1934 by Formals the earliest, but this technology does not cause enough attention at first, and this technology had just caused enough attention after the Reneker of U.S. Akron university leader's research team had successfully prepared multiple high polymer nanometer fiber after the nineties.Up to the present, there have been hundreds of natural polymers and synthetic high polymer to be used to prepare nanofiber, and have been widely used in fields such as filtration, catalysis, medical science, biology sensor and wound dressing.
In recent years, the composite nano-fiber material that utilizes the superfine fibre for preparing based on electrostatic spinning technique to prepare the containing metal nano particle had caused scientific worker's great interest gradually.This seminar begins from 2007 to pay close attention to that to utilize the polymer nanofiber felt be the synthetic metal nanoparticle of template original position.Before, this seminar has applied for based on electronegative high molecular polymer polyacrylic acid (polyacrylic acid, PAA) be that (application number: 2008102077604) " in-situ preparation method of functional nullvalent nano-iron/polyelectrolyte composite fibrofelt ", adopting the method for in-situ reducing is that 2-5nm zeroth order nanometer ferropexyization is on the PAA/PVA nanofiber mats with diameter for the patent of material of main part.
Polymine is a kind of positively charged polyelectrolyte macromolecule polymer material, water soluble.Contain a large amount of amino on the polymine strand, can form stable complex compound by electrostatic interaction with electronegative metallate ion.The characteristic of the complexing metal acid ion that has according to amido functional group contained on the polymine is so the present invention prepares nanogold particle with the polymine for the main body substrate macromolecule material.
The retrieval both at home and abroad document and the patent results of relevant nm of gold aspect shows: also discovery is not that the high molecular electrostatic spinning fiber felt of main body nano-reactor prepares and fixing nm of gold with the polymine.
Summary of the invention
Technical problem to be solved by this invention provides the in-situ preparation method that a kind of functional nano gold grain/static spins composite nanometer fiber felt, and this method is simple, and environmental pollution is little, is suitable for suitability for industrialized production; In the gained composite nanometer fiber felt, nanogold particle is uniformly dispersed aggregation phenomenon does not take place, fibrofelt can be effectively fixing nanogold particle, and be easy to recycle.
A kind of functional nano gold grain/static of the present invention spins the in-situ preparation method of composite nanometer fiber felt, comprising:
(1) with the deionized water be solvent, the preparation mass percent concentration be 8%-12% polymine (Polyethyleneimine, PEI)/(method by electrostatic spinning prepares nanofiber mats to polyvinyl alcohol for Polyvinyl alcohol, PVA) solution;
(2) above-mentioned nanofiber mats is used glutaraldehyde vapor crosslinking 18-48h under vacuum state, obtain water-fast electrostatic spinning nano fiber felt, fibrofelt is become light yellow by white; Use rinsed with deionized water afterwards, remove unnecessary glutaraldehyde, be immersed in the water 3-7 days then, check its water stability, dry then, obtain the hydrophobic nano fibrofelt;
(3) with the deionized water be solvent, compound concentration is the aurate solution of 0.5-2mM;
With the deionized water is solvent, and compound concentration is aurate concentration 4-6 NaBH doubly
4Or KBH
4Solution;
(4) above-mentioned hydrophobic nano fibrofelt is immersed in the above-mentioned aurate solution, make the chloroaurate root by with polymine on amino electrostatic adsorption be complexed on this polyelectrolyte nanofiber mats, fibrofelt is by the light yellow claret that becomes; Use rinsed with deionized water afterwards, remove the gold chloride radical ion that is not attached on the fibrofelt; Be immersed in above-mentioned NaBH then
4Or KBH
42-3h in the solution prepares the composite nanometer fiber felt that contains nanogold particle, and the fibrofelt color becomes puce by claret; Use rinsed with deionized water again, remove unnecessary NaBH
4Or KBH
4, dry 24h-36h.
PEI/PVA mass ratio in the described step (1) is 1: 1-3.
Spinning process condition in the described step (1) is: flow velocity 0.3ml/h-0.5ml/h, voltage are 18.6kV-21kV, and receiving range is 25cm.
The mass percent concentration of the glutaraldehyde in the described step (2) is 25%.
The fibrofelt water stability that obtains behind the glutaraldehyde vapor crosslinking in the described step (2) is good, and soaking all backs fiber pattern in water does not still have too big variation.
Aurate in the described step (3) is HAuCl
4Or AuCl
3HCl4H
2O.
NaBH in the described step (3)
4Solution is 16.8ml deionized water+0.6ml 10mM paranitrophenol+0.6ml 10MNaBH
4Mixed solution.
Polymine is the main body macromolecular material among the present invention, and polyvinyl alcohol increases its spinnability.
The result who contains the nm of gold fibrofelt who uses SEM (ESEM), EDS (energy disperses spectrum), TEM (projection Electronic Speculum), TGA (thermogravimetric analysis) and the present invention of infra-red sepectrometry sign to obtain is as follows respectively:
(1) SEM test result
The SEM test result shows, utilizes the polyelectrolyte nanofiber smooth surface of electrospinning device preparation even, does not have the thickness node, and no beading do not have adhesion between the fiber, have a large amount of pore structures.The average diameter of fiber is 490 ± 83nm, and concentrated being distributed between the 400-550nm.After the fibrofelt of process glutaraldehyde vapor crosslinking soaked in water, fiber still can keep good pattern, and the diameter of fiber increases to some extent owing to produce swelling in water body, and average diameter is 581 ± 93nm, sees description of drawings 1.
(2) EDS test result
EDS spectrogram result has confirmed that nm of gold successfully is fixed on the electrostatic spinning nano fiber felt.See description of drawings 4.
(3) TEM test result
The TEM test result shows that the size range of nanogold particle between 5-10nm, sees description of drawings 3.
(4) TGA test result
The TGA test result shows: under air atmosphere, the fibrofelt high polymer that contains nm of gold begins to be decomposed at 220 ℃, because nm of gold is an inertia, be not easy oxidized, so we infer that remaining product is the content of fibrofelt nm of gold under 900 ℃ of high temperature reaching, nm of gold content is 15% in this composite nanometer fiber felt.See description of drawings 5.
(5) examination of infrared spectrum result
Infrared spectrum measurement is the result show: the infared spectrum that contains the fibrofelt of nanogold particle strengthens to some extent at the amino absworption peak of 1650cm-1, show that amino and gold chloride root on the PEI have very strong interaction, have further confirmed nm of gold and have successfully loaded on the fibrofelt.See description of drawings 6.
(6) UV-vis test result
The UV-vis test result shows: contain the catalysis experiment demonstration of the composite nanometer fiber felt of nanogold particle to paranitrophenol, when the reaction time arrives 32min, paranitrophenol successively decreases under the characteristic wavelength of 400nm gradually, simultaneously at the characteristic peak of the new p-aminophenol of 300nm place appearance one, corresponding its catalytic efficiency to paranitrophenol can be near 97%.See description of drawings 7.
The present invention is based on a kind of positively charged polymer macromolecular material polymine (Polyethleneimine, PEI) be material of main part, the method of electronegative metallate ion by in-situ reducing is immobilized on the polyelectrolyte nanofiber mats matrix, and this load has the composite nano-fiber material of nano particle to show application prospects in fields such as filtration, catalysis and biomedicines.
The present invention relates to two basic principles:
(1) utilize the electrostatic spinning principle to make polyelectrolyte solution charged and formation taylor cone under the high voltage electric field effect, charged jet is subjected to drawing slenderizing and forms nanofiber under the effect of electric field force, and finally the form with fibrofelt is deposited on the dash receiver.
(2) utilize the method for electronation with AuCl
4 -Ion is reduced into nanogold particle under the effect of strong reductant.
Beneficial effect
(1) preparation method of the present invention is simple, easy operating, and used polymer is environmentally friendly macromolecular material, is suitable for suitability for industrialized production;
(2) in the gained composite nanometer fiber felt of the present invention, nanogold particle is uniformly dispersed aggregation phenomenon does not take place, fibrofelt can be effectively fixing nanogold particle, guaranteed that nm of gold is recycled effectively in follow-up practical application, and can not discharge.
Description of drawings
Fig. 1 is the SEM picture of the good electrostatic spinning nano fiber felt of the water stability of the present invention's preparation;
Fig. 2 is the SEM picture of the composite nanometer fiber felt that contains nm of gold of the present invention's preparation;
Fig. 3 is the cross section TEM picture that contains nm of gold composite fibre felt of the present invention's preparation;
Fig. 4 is the composite nanometer fiber felt EDS spectrogram that contains nm of gold of the present invention's preparation;
Fig. 5 is the composite nanometer fiber felt TGA curve map that contains nm of gold of the present invention's preparation;
Fig. 6 is the composite nanometer fiber felt FTIR spectrogram that contains nm of gold of the present invention's preparation;
Fig. 7 is the UV-vis spectrogram of the composite nanometer fiber felt catalysis paranitrophenol that contains nm of gold of the present invention's preparation; A-g represent respectively paranitrophenol different time points (0,4,8,12,16,24, absorbance 32min).
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Getting 6g PVA in beaker, is solvent with the deionized water, stirs 3h at 80 ℃ of lower magnetic forces, is made into mass percent concentration and is 12% the PVA aqueous solution, and the cooling back is stand-by;
Getting mass percent concentration respectively and be 50% the polyethyleneimine: amine aqueous solution and the above-mentioned PVA aqueous solution, to be made into total concentration be 12% mixed solution, and wherein the mass ratio of PEI/PVA is 1: 1; Spinning process condition is set is: flow velocity is 0.5ml/h, and voltage is 21kV, and receiving range is 25cm; The nanofiber of preparation finally is deposited on the aluminium foil with the form of fibrofelt, and fibrofelt is placed vacuum drying chamber inner drying 24-48h, is kept in the drier standby; Fibrofelt is placed on dry 24-48h in the vacuum drying chamber, is kept in the drier standby; Get fibrofelt it is covered on the culture dish of the mixed solution that fills glutaraldehyde (25%)+concentrated hydrochloric acid, then culture dish is positioned in the vacuum desiccator, vacuumize, crosslinking time is 24-48h; Crosslinked good fibrofelt is placed deionized water to soak to check in 3-7 days its water stability, the fiber pattern with crosslinked before compare and not have too big variation, be fibre diameter chap slightly; Do not meet water through crosslinked fibrofelt then can dissolve at once.
The test result of SEM shows: the diameter of nanofiber mainly is distributed between the 450-700nm, and fiber surface is smooth, even thickness.
Getting 6gPVA in beaker, is solvent with the deionized water, places on the magnetic stirring apparatus at 80 ℃ and stirs 3h down, is made into mass percent concentration and is 12% the PVA aqueous solution, and the cooling back is stand-by;
Get 4.1185mg AuCl
3HCl4H
2O is dissolved in the deionized water, and magnetic agitation makes it fully to mix, and being mixed with concentration is the transparent light yellow chlorauric acid solution 20ml of 0.5mM; Get 1.514mg NaBH
4, being dissolved in the deionized water, glass bar stirred for several minute is made into the solution 20ml of 2mM, and is stand-by;
Take by weighing respectively for mass percent concentration be 50% the polyethyleneimine: amine aqueous solution and the above-mentioned PVA aqueous solution to be made into total concentration be 12% 10ml mixed solution, wherein the mass ratio of PEI/PVA is 1: 3; Spinning process condition is set is: flow velocity is 0.3ml/h, and voltage is 18.6kV, and receiving range is 25cm; The nanofiber of preparation finally is deposited on the aluminium foil with the form of nanometer felt, and fibrofelt is placed on dry 24-48h in the vacuum drying chamber, is kept in the drier standby; Get fibrofelt it is covered on the culture dish that fills glutaraldehyde (25%) solution, then culture dish is positioned in the vacuum desiccator, vacuumize, crosslinking time is 24-48h; Place deionized water to soak crosslinked good fibrofelt and showed that it had good water stability in 3-7 days, the fiber pattern with crosslinked before compare and do not have too big variation; Do not meet water through crosslinked fibrofelt then can dissolve at once; The concentration that the PEI/PVA fibrofelt of the crosslinking Treatment of learning from else's experience is immersed in above-mentioned preparation is in the chlorauric acid solution of 0.5mM, and the quality of fibrofelt and chlorauric acid solution volume ratio are set to 1mg/ml; After soaking 1h, more than 3 times, the fibrofelt color becomes claret by white with rinsed with deionized water; The fibrofelt that will have the gold chloride radical ion then is immersed in the NaBH of 2mM
4In the solution, the fibrofelt color is deepened gradually, becomes dark brown, and supervenes a large amount of bubbles; After the reductase 12 h, the fibrofelt taking-up more than 3 times, has been prepared the composite nanometer fiber felt that contains nanogold particle with rinsed with deionized water; Be placed on then in the vacuum drying chamber behind the dry 24-48h, it is standby to place drier to preserve.
Get the 27.822mg paranitrophenol and be dissolved in magnetic agitation in the 20ml methanol solution, be mixed with the light yellow paranitrophenol solution of 10mM; Get 1.8915gNaBH
4Be mixed with the aqueous solution of 10M, stand-by;
Preparation 16.8ml deionized water+0.6ml10mM paranitrophenol+0.6ml 10M NaBH
4Mixed solution, the composite nanometer fiber felt that will contain nanogold particle then is immersed in this mixed solution, keep the ratio of fibrofelt and mixed liquor volume to be set to 1mg/ml, fibrofelt carries out catalysis to the paranitrophenol in the mixed solution under the magnetic agitation effect, respectively at time point 0min, 4min, 8min, 12min, 20min, 28min and 32min respectively get the variable quantity that 0.5ml solution is used for the test solution paranitrophenol.The UV-vis test result shows: when 32min, paranitrophenol is that the characteristic absorption value at 400nm place sharply reduces at wavelength, and produce a new characteristic peak at the 300nm place, i.e. the characteristic peak of catalysate p-aminophenol, its catalytic efficiency also can reach 97% accordingly.
Claims (6)
1. a functional nano gold grain/static spins the in-situ preparation method of composite nanometer fiber felt, comprising:
(1) with the deionized water be solvent, the preparation mass percent concentration is the polymine PEI/ PVAC polyvinylalcohol solution of 8%-12%, and the method by electrostatic spinning prepares nanofiber mats;
(2) above-mentioned nanofiber mats is used glutaraldehyde vapor crosslinking 18-48h under vacuum state, obtain water-fast electrostatic spinning nano fiber felt, fibrofelt is become light yellow by white; Use rinsed with deionized water afterwards, be immersed in the water 3-7 days then, check its water stability, dry then, obtain the hydrophobic nano fibrofelt;
(3) with the deionized water be solvent, compound concentration is the aurate solution of 0.5-2mM;
With the deionized water is solvent, and compound concentration is aurate concentration 4-6 NaBH doubly
4Or KBH
4Solution;
(4) above-mentioned hydrophobic nano fibrofelt is immersed in the above-mentioned aurate solution, fibrofelt is by the light yellow claret that becomes; Use rinsed with deionized water afterwards; Be immersed in above-mentioned NaBH then
4Or KBH
42-3h in the solution prepares the composite nanometer fiber felt that contains nanogold particle, and the fibrofelt color becomes puce by claret; Use rinsed with deionized water again, dry 24h-36h.
2. a kind of functional nano gold grain/static according to claim 1 spins the in-situ preparation method of composite nanometer fiber felt, it is characterized in that: the PEI/PVA mass ratio in the described step (1) is 1: 1-3.
3. a kind of functional nano gold grain/static according to claim 1 spins the in-situ preparation method of composite nanometer fiber felt, it is characterized in that: the spinning process condition in the described step (1) is: flow velocity 0.3ml/h-0.5ml/h, voltage is 18.6kV-21kV, and receiving range is 25cm.
4. a kind of functional nano gold grain/static according to claim 1 spins the in-situ preparation method of composite nanometer fiber felt, it is characterized in that: the mass percent concentration of the glutaraldehyde in the described step (2) is 25%.
5. a kind of functional nano gold grain/static according to claim 1 spins the in-situ preparation method of composite nanometer fiber felt, it is characterized in that: the aurate in the described step (3) is HAuCl
4Or AuCl
3HCl4H
2O.
6. a kind of functional nano gold grain/static according to claim 1 spins the in-situ preparation method of composite nanometer fiber felt, it is characterized in that: the NaBH in the described step (3)
4Solution is 16.8ml deionized water+0.6ml 10mM paranitrophenol+0.6ml 10M NaBH
4Mixed solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010207752 CN101886331A (en) | 2010-06-23 | 2010-06-23 | In-situ preparation method of functional gold nanoparticle/electrostatic spinning composite nano fibrofelt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010207752 CN101886331A (en) | 2010-06-23 | 2010-06-23 | In-situ preparation method of functional gold nanoparticle/electrostatic spinning composite nano fibrofelt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101886331A true CN101886331A (en) | 2010-11-17 |
Family
ID=43072410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010207752 Pending CN101886331A (en) | 2010-06-23 | 2010-06-23 | In-situ preparation method of functional gold nanoparticle/electrostatic spinning composite nano fibrofelt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101886331A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526539A (en) * | 2013-10-23 | 2014-01-22 | 东华大学 | Preparation method of functional gold-silver core-shell nanoparticle/electrostatic spun composite nano-fiber felt |
| CN103741467A (en) * | 2013-12-26 | 2014-04-23 | 东华大学 | Preparation method for hyaluronic acid functionalized nano fibers applied to capturing cancer cells in targeted manner |
| CN108796661A (en) * | 2018-06-14 | 2018-11-13 | 中原工学院 | A kind of electrostatic spinning preparation method of platinum doping fluorescent nanofiber |
| CN109317123A (en) * | 2018-12-03 | 2019-02-12 | 同济大学 | A kind of phosphorus high throughput absorption nano fibrous membrane and preparation method thereof |
| CN111270418A (en) * | 2020-02-07 | 2020-06-12 | 天津工业大学 | Gold-loaded porous submicron fiber and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584135A (en) * | 2004-05-31 | 2005-02-23 | 吉林大学 | Electrical spinning method for making metal nanometer particles in order in high-polymer nanometer fibre |
| CN101445291A (en) * | 2008-12-25 | 2009-06-03 | 东华大学 | In-situ preparation method for functional nullvalent nano-iron/polyelectrolyte composite fibrofelt |
-
2010
- 2010-06-23 CN CN 201010207752 patent/CN101886331A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584135A (en) * | 2004-05-31 | 2005-02-23 | 吉林大学 | Electrical spinning method for making metal nanometer particles in order in high-polymer nanometer fibre |
| CN101445291A (en) * | 2008-12-25 | 2009-06-03 | 东华大学 | In-situ preparation method for functional nullvalent nano-iron/polyelectrolyte composite fibrofelt |
Non-Patent Citations (2)
| Title |
|---|
| 《2009年全国高分子学术论文报告会论文集》 20090822 郭睿等 尺寸可控的树状大分子包裹的纳米金颗粒的制备、表征及其稳定性研究 614 1-6 , 2 * |
| 《2010国际纺织生物医用论坛论文集》 20100529 Fang Xu et al. Immobilization of Gold Nanoparticles into Electrospun Polymer Nanofibers：Synthesis，Characterization，and Catalytic Applications 380-383 1-5 , 2 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526539A (en) * | 2013-10-23 | 2014-01-22 | 东华大学 | Preparation method of functional gold-silver core-shell nanoparticle/electrostatic spun composite nano-fiber felt |
| CN103741467A (en) * | 2013-12-26 | 2014-04-23 | 东华大学 | Preparation method for hyaluronic acid functionalized nano fibers applied to capturing cancer cells in targeted manner |
| CN108796661A (en) * | 2018-06-14 | 2018-11-13 | 中原工学院 | A kind of electrostatic spinning preparation method of platinum doping fluorescent nanofiber |
| CN108796661B (en) * | 2018-06-14 | 2020-06-12 | 中原工学院 | Electrostatic spinning preparation method of platinum-doped fluorescent nanofiber |
| CN109317123A (en) * | 2018-12-03 | 2019-02-12 | 同济大学 | A kind of phosphorus high throughput absorption nano fibrous membrane and preparation method thereof |
| CN109317123B (en) * | 2018-12-03 | 2020-04-17 | 同济大学 | Phosphorus high-flux adsorption nanofiber membrane and preparation method thereof |
| CN111270418A (en) * | 2020-02-07 | 2020-06-12 | 天津工业大学 | Gold-loaded porous submicron fiber and preparation method thereof |
| CN111270418B (en) * | 2020-02-07 | 2021-11-19 | 天津工业大学 | Gold-loaded porous submicron fiber and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Tu et al. | Incorporation of rectorite into porous polycaprolactone/TiO2 nanofibrous mats for enhancing photocatalysis properties towards organic dye pollution | |
| CN103623709B (en) | Oxidized graphene-modified super-hydrophilic super-oleophobic oil-water separation film and preparation method and application thereof | |
| Cheval et al. | Polyamide 66 microspheres metallised with in situ synthesised gold nanoparticles for a catalytic application | |
| Liu et al. | Structure and properties of cellulose/Fe2O3 nanocomposite fibers spun via an effective pathway | |
| Lu et al. | One‐dimensional composite nanomaterials: Synthesis by electrospinning and their applications | |
| Chen et al. | Functionalization of cellulose nanofiber mats with phthalocyanine for decoloration of reactive dye wastewater | |
| CN100434163C (en) | Preparing method of zinc oxide nano fiber film used as photocatalyst | |
| Nie et al. | Fabrication of polyacrylonitrile/CuS composite nanofibers and their recycled application in catalysis for dye degradation | |
| Guo et al. | Silver nanoparticles/polydopamine coated polyvinyl alcohol sponge as an effective and recyclable catalyst for reduction of 4-nitrophenol | |
| Liu et al. | Cellulose‐nanowhisker‐templated synthesis of titanium dioxide/cellulose nanomaterials with promising photocatalytic abilities | |
| Xia et al. | The recyclability of alginate hydrogel particles used as a palladium catalyst support | |
| Zhu et al. | Visible-light-driven Ag/Ag 3 PO 4-based plasmonic photocatalysts: Enhanced photocatalytic performance by hybridization with graphene oxide | |
| CN101886331A (en) | In-situ preparation method of functional gold nanoparticle/electrostatic spinning composite nano fibrofelt | |
| CN104975366B (en) | A kind of Lyocell fiber and preparation method thereof containing nano particle | |
| Peng et al. | Synthesis of Ag–Fe 3 O 4 nanoparticles supported on polydopamine-functionalized porous cellulose acetate microspheres: Catalytic and antibacterial applications | |
| Wang et al. | Ag@ AgCl nanoparticles in-situ deposited cellulose acetate/silk fibroin composite film for photocatalytic and antibacterial applications | |
| Fujii et al. | Preparation of cellulose/silver composite particles having a recyclable catalytic property | |
| Cheng et al. | In situ prepared nanosized Pt-Ag/PDA/PVA-co-PE nanofibrous membrane for highly-efficient catalytic reduction of p-nitrophenol | |
| Xu et al. | Preparation of mesoporous poly (acrylic acid)/SiO 2 composite nanofiber membranes having adsorption capacity for indigo carmine dye | |
| CN103526539A (en) | Preparation method of functional gold-silver core-shell nanoparticle/electrostatic spun composite nano-fiber felt | |
| Zou et al. | Synthesis of supported Ag/AgCl composite materials and their photocatalytic activity | |
| Sui et al. | Different coating on electrospun nanofiber via layer-by-layer self-assembly for their photocatalytic activities | |
| Hou et al. | Deposition of TiO2 nanoparticles on porous polylactic acid fibrous substrates and its photocatalytic capability | |
| CN103143392B (en) | Method for preparing phenolic aldehyde amine (PAA)/polyvinyl acetate (PVA) nano-fiber felt containing Au dendrimer-stabilized nanoparticles (DSNPs) | |
| CN106807451A (en) | A kind of flexible platinum formaldehyde room temperature oxidation catalyst and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101117 |