CN105195025A - Method of preparing antibacterial anti-pollution ultrafiltration membrane by adopting silver-loaded nano composite material - Google Patents
Method of preparing antibacterial anti-pollution ultrafiltration membrane by adopting silver-loaded nano composite material Download PDFInfo
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Abstract
The invention discloses a method of preparing an antibacterial anti-pollution ultrafiltration membrane by adopting a silver-loaded nano composite material. The method comprises the following steps: preparing a nano material water dispersion solution, adding trihydroxymethyl aminomethane and dopamine hydrochloride, stirring and reacting for 2 to 12 hours, centrifugally washing, then drying to obtain a polydopamine-modified nano material; preparing a mixed solution containing the polydopamine-modified nano material, a silver-ammonium solution, a stabilizer and water, stirring for 2 to 12 hours, centrifugally washing, and then drying to obtain the silver-loaded nano composite material; dispersing the silver-loaded nano composite material in an organic solvent, adding a membrane material, stirring, completely dissolving the membrane material, and standing to obtain a membrane casting solution; and scraping the membrane casting solution into a flat membrane by utilizing a flat membrane scraping machine, immersing in a coagulating bath, and carrying out a phase conversion to obtain the antibacterial anti-pollution ultrafiltration membrane. The ultrafiltration membrane has good hydrophilia, durable antibacterial performance and excellent anti-pollution performance, has good antibacterial and sterilization effect for colibacillus, bacillus subtilis and the like; moreover, the silver nano particles stably exist in the antibacterial anti-pollution ultrafiltration membrane.
Description
Technical field
The present invention relates to a kind of method adopting silver-carrying nano composite to prepare anti-bacterial and anti-fouling dye milipore filter, belong to technical field of membrane separation.
Background technology
Ultrafiltration membrane technique has been widely used in separation, concentrated and purge process, has engineer applied in fields such as biological products, pharmaceutical products, food compositions and Sewage treatment.But, for a long time, the seriously polluted further application affecting hyperfiltration technique of milipore filter.Fouling membrane causes ultrafiltration system to need frequent clean in running, easily causes the reduction in ultrafiltration system membrane component service life, increases the operating cost of system.
The pollution of milipore filter is mainly organic matter (humic acid, protein) and living beings (bacterium, fungi).Protein in organic pollution is very easily attached in polymer film surface and duct, causes irreversible membrane fouling.Biological pollutant is bacterium and algae etc. mainly; they can form the biomembrane that one deck is made up of microbial cell and extracellular polymeric on film surface; usually Pore Blocking and aperture can be caused to reduce, cause the continuous decrease of milipore filter flux, and be difficult to remove by simply rinsing.
For solving the pollution problem of film, domestic and international researcher attempts developing antibacterial antifouling milipore filter.Such as, for alleviating the organic contamination of film, researcher adopts hydrophilic family macromolecule, nano material blending and modifying milipore filter.For alleviating the biological pollution of film, researcher's majority adopts introduces the material that has microbe killing properties, as shitosan, Nano silver grain and titanium dioxide nano-particle etc. on film surface.Wherein, Nano silver grain has the bactericidal property of wide spectrum, has suppression and killing action to number microorganisms such as Escherichia coli, hay bacillus, chlamydia trachomatises.Nano silver grain is incorporated in ultrafiltration membrane surface or film matrix by some researchers, gives milipore filter restraining and sterilizing bacteria function.But because Nano silver grain particle diameter is usually at 5 ~ 50nm, the approximate 10 ~ 30nm in surperficial fenestra aperture of milipore filter, fenestra aperture, bottom surface even can reach micron order.Therefore, be deposited directly to film surface or be blended in film inside Nano silver grain lack long-time stability, be lost to along with the use of film in feed liquid, this not only loses the anti-bacterial and anti-fouling metachromia energy of modified ultrafiltration membrane, also can cause secondary pollution to feed liquid.Therefore, improve the stability of Nano silver grain in milipore filter, the milipore filter that preparation has durable antibiotic anti-soil is extremely important to applying of hyperfiltration technique.
Summary of the invention
The object of the invention is to overcome some shortcomings of the prior art, a kind of method adopting silver-carrying nano composite to prepare anti-bacterial and anti-fouling dye milipore filter is provided, silver-carrying nano composite not easily runs off, preparation technology simple, be easy to operation and popularization, and the milipore filter of preparation has good anti-microbial property and antifouling property.
The present invention, by Nano silver grain load is fixed on hydrophilic nano material surface, strengthens the stability of Nano silver grain, and the milipore filter that blending and modifying is prepared has potent, wide spectrum and lasting anti-microbial property and good antifouling property.
The present invention is realized by following technical proposals:
1. the method adopting silver-carrying nano composite to prepare anti-bacterial and anti-fouling dye milipore filter: it is characterized in that comprising following process:
1) silver-carrying nano composite is prepared:
Preparation of nano material water dispersion liquid, adds trishydroxymethylaminomethane and Dopamine hydrochloride, stirring reaction 2 ~ 12 hours, dry after centrifuge washing, obtains the nano material that poly-dopamine is modified; The mixed solution of nano material, silver ammino solution, stabilizing agent and water that configuration is modified containing poly-dopamine, stirs 2 ~ 12 hours, dry after centrifuge washing, obtains silver-carrying nano composite.
2) preparation of anti-bacterial and anti-fouling dye milipore filter:
By the dispersion of silver-carrying nano composite in organic solvent, add membrane material afterwards, be stirred to and dissolve completely, leave standstill and obtain casting solution; Utilize flat membrane casting equipment to scrape casting solution and make Flat Membrane, immerse inversion of phases in coagulating bath and obtain anti-bacterial and anti-fouling dye milipore filter.
In described step (1), nano material is polyaniline nano fiber, CNT or graphene nanometer sheet.
In described step (1), stabilizing agent is polyvinylpyrrolidone, polyethers, polyethylene glycol or hydroxyethylcellulose.
In the reaction solution of described step (1), with the volume of a premium on currency for benchmark, nano material concentration is 0.5g/L ~ 5g/L, and the concentration of trishydroxymethylaminomethane is 1.8g/L, and the concentration of Dopamine hydrochloride is 1g/L ~ 4g/L; The nano material concentration that poly-dopamine is modified is 0.5g/L ~ 5g/L, and silver nitrate concentration is 1g/L ~ 8g/L, and stabilizer concentration is 0.5g/L ~ 5g/L.
In described step (2), organic solvent is one or more in dimethylacetylamide, dimethyl formamide and 1-METHYLPYRROLIDONE;
In described step (2), membrane material is the one in polysulfones, polyether sulfone or Kynoar.
Coagulating bath is water or water and dimethylacetylamide, dimethyl formamide, 1-METHYLPYRROLIDONE or ethanol in described step (2) is the mixture that 50 ~ 4:1 prepares according to mass ratio.
In described step (2), the mass fraction of silver-carrying nano composite in casting solution is 0.1% ~ 2%; The mass fraction of membrane material in casting solution is 10% ~ 20%.
Anti-bacterial and anti-fouling containing silver-carrying nano composite dye milipore filter prepared by the present invention has good hydrophily, lasting anti-microbial property and excellent antifouling property, have restraining and sterilizing bacteria effect to Escherichia coli, hay bacillus etc., Nano silver grain is stable existence in anti-bacterial and anti-fouling dye milipore filter.And preparation technology is simple, be easy to operation.After tested, compare unmodified polymer milipore filter, surface contact angle containing the polymeric ultrafiltration membranes of silver-carrying nano composite declines 10 ° ~ 25 °, pure water permeation flux improves 50% ~ 200%, substantially constant to the rejection of bovine serum albumin, albumen filtration flux improves 20% ~ 100%, filters the flux recovery rate polluting caudacoria and improves 20% ~ 50%, to the sterilizing rate of Escherichia coli, staphylococcus aureus and hay bacillus all reach more than 90% after contacting 5 hours with bacterium liquid through albumen.Nano silver grain is stable existence in the polymeric ultrafiltration membranes containing silver-carrying nano composite, soaks and do not detect coming off of Nano silver grain in 10 days in the pure water of 20 ~ 80 DEG C, therefore has long-acting stable anti-bacterial and anti-fouling dye ability.
Accompanying drawing explanation
The transmission electron microscope photo that carry silver-colored polyaniline nano-composite material of Fig. 1 obtained by embodiment 1.
The section structure stereoscan photograph of the polysulphone super-filter membrane containing silver-carrying nano composite of Fig. 2 obtained by embodiment 1.
Detailed description of the invention
Embodiment 1
(1) prepare the aqueous dispersions of 50mL containing 0.1g polyaniline nano fiber, add 0.09g trishydroxymethylaminomethane and 0.1g Dopamine hydrochloride, stirring reaction 8 hours, dry after centrifuge washing, obtain the nano material that poly-dopamine is modified.Then, preparation 50mL, containing the nano material aqueous dispersions of the poly-dopamine modification of 0.1g, adds 0.25g silver nitrate and 0.25g polyvinylpyrrolidone, stirs 2 hours, dry after centrifuge washing, obtains silver-carrying nano composite.
(2) getting 0.1g silver-carrying nano composite is dispersed in 16.9g dimethylacetylamide, add 3.0g polysulfones afterwards, be stirred to after dissolving completely, leave standstill and obtain casting solution, by casting solution knifing machine film on a glass, be dipped in after prevapourising in water, obtain the milipore filter containing silver-carrying nano composite.The transmission electron microscope photo of this silver-carrying nano composite is shown in accompanying drawing 1 of the present invention.Accompanying drawing 2 of the present invention should be seen containing the section structure stereoscan photograph of the polysulphone super-filter membrane of silver-carrying nano composite.
After tested, compare unmodified polysulphone super-filter membrane, surface contact angle containing the polysulphone super-filter membrane of silver-carrying nano composite declines 15 °, pure water permeation flux improves 200%, substantially constant to the rejection of bovine serum albumin, albumen filtration flux improves 100%, filters the flux recovery rate polluting caudacoria and improves 30%, to the sterilizing rate of Escherichia coli, staphylococcus aureus and hay bacillus all reach more than 90% after contacting 5 hours with bacterium liquid through albumen.
Embodiment 2
(1) prepare 50mL containing 0.025g graphene nanometer sheet aqueous dispersions, add 0.09g trishydroxymethylaminomethane and 0.05g Dopamine hydrochloride, stirring reaction 12 hours, dry after centrifuge washing, obtain the nano material that poly-dopamine is modified.Then, preparation 50mL, containing the aqueous dispersions of the poly-dopamine decorated nanometer material of 0.025g, adds 0.025g silver nitrate and 0.1g polyethers, stirs 12 hours, dry after centrifuge washing, obtains silver-carrying nano composite.
(2) getting 0.02g silver-carrying nano composite is dispersed in 15.98g dimethylacetylamide, add 4.0g polyether sulfone afterwards, be stirred to after dissolving completely, leave standstill and obtain casting solution, by casting solution knifing machine film on a glass, be dipped in after prevapourising in water, obtain the milipore filter containing silver-carrying nano composite.
After tested, compare unmodified poly (ether-sulfone) ultrafiltration membrane, surface contact angle containing the poly (ether-sulfone) ultrafiltration membrane of silver-carrying nano composite declines 10 °, pure water permeation flux improves 80%, substantially constant to the rejection of bovine serum albumin, albumen filtration flux improves 50%, filters the flux recovery rate polluting caudacoria and improves 30%, to the sterilizing rate of Escherichia coli, staphylococcus aureus and hay bacillus all reach more than 90% after contacting 5 hours with bacterium liquid through albumen.
Embodiment 3
(1) prepare the aqueous dispersions of 50mL containing 0.25g CNT, add 0.09g trishydroxymethylaminomethane and 0.1g Dopamine hydrochloride, stirring reaction 5 hours, dry after centrifuge washing, obtain the nano material that poly-dopamine is modified.Then, the aqueous dispersions that preparation 50mL gathers dopamine decorated nanometer material containing 0.25g, adds 0.1g silver nitrate and 0.025g polyethylene glycol, stirs 12 hours, dry after centrifuge washing, obtains silver-carrying nano composite.
(2) getting 0.2g silver-carrying nano composite is dispersed in 8.0g dimethyl formamide, add 1.8g polysulfones afterwards, be stirred to after dissolving completely, leave standstill and obtain casting solution, by casting solution knifing machine film on a glass, be dipped in the water of 10:1 and the mixture of dimethyl formamide after prevapourising, obtain the milipore filter containing silver-carrying nano composite.
After tested, compare unmodified polysulphone super-filter membrane, surface contact angle containing the polysulphone super-filter membrane of silver-carrying nano composite declines 10 °, pure water permeation flux improves 80%, substantially constant to the rejection of bovine serum albumin, albumen filtration flux improves 50%, filters the flux recovery rate polluting caudacoria and improves 20%, to the sterilizing rate of Escherichia coli, staphylococcus aureus and hay bacillus all reach more than 90% after contacting 5 hours with bacterium liquid through albumen.
Embodiment 4
(1) prepare the aqueous dispersions of 50mL containing 0.1g polyaniline nano fiber, add 0.09g trishydroxymethylaminomethane and 0.2g Dopamine hydrochloride, stirring reaction 2 hours, dry after centrifuge washing, obtain the nano material that poly-dopamine is modified.Then, the aqueous dispersions that preparation 50mL gathers containing 0.1g the nano material that dopamine is modified, adds 0.2g silver nitrate and 0.25g hydroxyethylcellulose, stirs 5 hours, dry after centrifuge washing, obtains silver-carrying nano composite.
(2) getting 0.1g silver-carrying nano composite is dispersed in 17.9gN-methyl pyrrolidone, add 2.0g Kynoar afterwards, be stirred to after dissolving completely, leave standstill and obtain casting solution, by casting solution knifing machine film on a glass, be dipped in the water of 50:1 and the mixture of ethanol after prevapourising, obtain the milipore filter containing silver-carrying nano composite.
After tested, compare unmodified polyvinylidene fluoride (PVDF) ultrafiltration membrane, surface contact angle containing the polyvinylidene fluoride (PVDF) ultrafiltration membrane of silver-carrying nano composite declines 25 °, pure water permeation flux improves 50%, substantially constant to the rejection of bovine serum albumin, albumen filtration flux improves 20%, filters the flux recovery rate polluting caudacoria and improves 20%, to the sterilizing rate of Escherichia coli, staphylococcus aureus and hay bacillus all reach more than 90% after contacting 5 hours with bacterium liquid through albumen.
Embodiment 5
(1) prepare the aqueous dispersions of 50mL containing 0.25g polyaniline nano fiber, add 0.09g trishydroxymethylaminomethane and 0.2g Dopamine hydrochloride, stirring reaction 2 hours, dry after centrifuge washing, obtain the nano material that poly-dopamine is modified.Then, the aqueous dispersions that preparation 50mL gathers containing 0.25g the nano material that dopamine is modified, adds 0.2g silver nitrate and 0.25g polyvinylpyrrolidone, stirs 5 hours, dry after centrifuge washing, obtains silver-carrying nano composite.
(2) getting 0.2g silver-carrying nano composite is dispersed in 8.3g dimethylacetylamide, add 1.5g polyether sulfone afterwards, be stirred to after dissolving completely, leave standstill and obtain casting solution, by casting solution knifing machine film on a glass, be dipped in after prevapourising in the water of 10:1 and the mixture of dimethylacetylamide, obtain the poly (ether-sulfone) ultrafiltration membrane containing silver-carrying nano composite.
After tested, compare unmodified poly (ether-sulfone) ultrafiltration membrane, surface contact angle containing the poly (ether-sulfone) ultrafiltration membrane of silver-carrying nano composite declines 15 °, pure water permeation flux improves 150%, substantially constant to the rejection of bovine serum albumin, albumen filtration flux improves 60%, filters the flux recovery rate polluting caudacoria and improves 40%, to the sterilizing rate of Escherichia coli, staphylococcus aureus and hay bacillus all reach more than 90% after contacting 5 hours with bacterium liquid through albumen.
Embodiment 6
(1) prepare the aqueous dispersions of 50mL containing 0.25g CNT, add 0.09g trishydroxymethylaminomethane and 0.2g Dopamine hydrochloride, stirring reaction 5 hours, dry after centrifuge washing, obtain the nano material that poly-dopamine is modified.Then, the aqueous dispersions that preparation 50mL gathers containing 0.25g the nano material that dopamine is modified, adds 0.4g silver nitrate and 0.25g polyethylene glycol, stirs 2 hours, dry after centrifuge washing, obtains silver-carrying nano composite.
(2) getting 0.2g silver-carrying nano composite is dispersed in 7.8gN-methyl pyrrolidone, add 2.0g Kynoar afterwards, be stirred to after dissolving completely, leave standstill and obtain casting solution, by casting solution knifing machine film on a glass, be dipped in after prevapourising in the water of 4:1 and the mixture of 1-METHYLPYRROLIDONE, obtain the polyvinylidene fluoride (PVDF) ultrafiltration membrane containing silver-carrying nano composite.
After tested, compare unmodified polyvinylidene fluoride (PVDF) ultrafiltration membrane, surface contact angle containing the polyvinylidene fluoride (PVDF) ultrafiltration membrane of silver-carrying nano composite declines 25 °, pure water permeation flux improves 80%, substantially constant to the rejection of bovine serum albumin, albumen filtration flux improves 30%, filters the flux recovery rate polluting caudacoria and improves 20%, to the sterilizing rate of Escherichia coli, staphylococcus aureus and hay bacillus all reach more than 90% after contacting 5 hours with bacterium liquid through albumen.
The method of anti-bacterial and anti-fouling dye milipore filter prepared by the present invention's employing silver-carrying nano composite that is open and that propose, those skilled in the art are by using for reference present disclosure, the links such as suitable feed change and process route realize, although method of the present invention and technology of preparing are described by preferred embodiment, person skilled obviously can change Method and Technology route as herein described or reconfigure not departing from content of the present invention, spirit and scope, realizes final technology of preparing.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the art, they are deemed to be included in spirit of the present invention, scope and content.
Claims (8)
1. the method adopting silver-carrying nano composite to prepare anti-bacterial and anti-fouling dye milipore filter: it is characterized in that comprising following process:
1) silver-carrying nano composite is prepared:
Preparation of nano material water dispersion liquid, adds trishydroxymethylaminomethane and Dopamine hydrochloride, stirring reaction 2 ~ 12 hours, dry after centrifuge washing, obtains the nano material that poly-dopamine is modified; The mixed solution of nano material, silver ammino solution, stabilizing agent and water that configuration is modified containing poly-dopamine, stirs 2 ~ 12 hours, dry after centrifuge washing, obtains silver-carrying nano composite.
2) preparation of anti-bacterial and anti-fouling dye milipore filter:
By the dispersion of silver-carrying nano composite in organic solvent, add membrane material afterwards, be stirred to and dissolve completely, leave standstill and obtain casting solution; Utilize flat membrane casting equipment to scrape casting solution and make Flat Membrane, immerse inversion of phases in coagulating bath and obtain anti-bacterial and anti-fouling dye milipore filter.
2. the method for claim 1, is characterized in that in described step (1), nano material is polyaniline nano fiber, CNT or graphene nanometer sheet.
3. the method for claim 1, is characterized in that in described step (1), stabilizing agent is polyvinylpyrrolidone, polyethers, polyethylene glycol or hydroxyethylcellulose.
4. the method for claim 1, it is characterized in that, in the reaction solution of described step (1), with the volume of a premium on currency for benchmark, nano material concentration is 0.5g/L ~ 5g/L, the concentration of trishydroxymethylaminomethane is 1.8g/L, and the concentration of Dopamine hydrochloride is 1g/L ~ 4g/L; The nano material concentration that poly-dopamine is modified is 0.5g/L ~ 5g/L, and silver nitrate concentration is 1g/L ~ 8g/L, and stabilizer concentration is 0.5g/L ~ 5g/L.
5. the method for claim 1, is characterized in that organic solvent in described step (2) is one or more in dimethylacetylamide, dimethyl formamide and 1-METHYLPYRROLIDONE.
6. the method for claim 1, is characterized in that in described step (2), membrane material is the one in polysulfones, polyether sulfone or Kynoar.
7. the method for claim 1, to is characterized in that in described step (2) that coagulating bath be water or water and dimethylacetylamide, dimethyl formamide, 1-METHYLPYRROLIDONE or ethanol is the mixture that 50 ~ 4:1 prepares according to mass ratio.
8. the method for claim 1, is characterized in that in described step (2), the mass fraction of silver-carrying nano composite in casting solution is 0.1% ~ 2%; The mass fraction of membrane material in casting solution is 10% ~ 20%.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143265A (en) * | 2013-01-23 | 2013-06-12 | 丽水学院 | Ultrafiltration membrane with hydrophilism and antibacterial property and preparation method thereof |
| CN103418250A (en) * | 2013-07-05 | 2013-12-04 | 烟台绿水赋膜材料有限公司 | Method of in-situ generation of nano particle on separating membrane surface |
| WO2013180457A1 (en) * | 2012-05-29 | 2013-12-05 | 한국교통대학교 산학협력단 | Antimicrobial organic copolymer having adhesion properties, method for producing same, antimicrobial coating film coated with same, and method for coating the coating film |
| CN104028742A (en) * | 2014-05-27 | 2014-09-10 | 华南理工大学 | Ti nanorod-poly-dopamine-co-doped zinc and silver composite material and preparation and application thereof |
-
2015
- 2015-09-09 CN CN201510571734.XA patent/CN105195025B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013180457A1 (en) * | 2012-05-29 | 2013-12-05 | 한국교통대학교 산학협력단 | Antimicrobial organic copolymer having adhesion properties, method for producing same, antimicrobial coating film coated with same, and method for coating the coating film |
| CN103143265A (en) * | 2013-01-23 | 2013-06-12 | 丽水学院 | Ultrafiltration membrane with hydrophilism and antibacterial property and preparation method thereof |
| CN103418250A (en) * | 2013-07-05 | 2013-12-04 | 烟台绿水赋膜材料有限公司 | Method of in-situ generation of nano particle on separating membrane surface |
| CN104028742A (en) * | 2014-05-27 | 2014-09-10 | 华南理工大学 | Ti nanorod-poly-dopamine-co-doped zinc and silver composite material and preparation and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘文超: "碳基载银复合材料的制备及其抑菌性能的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
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