CN110523294A - Load the anti-bacteria ceramic film and preparation method and application of two-dimensional nano silver strip - Google Patents
Load the anti-bacteria ceramic film and preparation method and application of two-dimensional nano silver strip Download PDFInfo
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- CN110523294A CN110523294A CN201811568433.1A CN201811568433A CN110523294A CN 110523294 A CN110523294 A CN 110523294A CN 201811568433 A CN201811568433 A CN 201811568433A CN 110523294 A CN110523294 A CN 110523294A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0039—Inorganic membrane manufacture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/10—Supported membranes; Membrane supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/022—Metals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/024—Oxides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/48—Antimicrobial properties
Abstract
The invention belongs to ceramic membrane technology fields, disclose a kind of anti-bacteria ceramic film and the preparation method and application thereof of nano silver slice load.The anti-bacteria ceramic film of the nano silver slice load is that Nano silver piece is carried on porous ceramic surface using sol-gal process, so that ceramic membrane be made to have antibacterial effect, the method has the advantage that fastness is good, stability is good.Resulting ceramic super-filtering film can be used for polysaccharide solution removal of impurities and decolourize and have antibacterial bacteria-eliminating efficacy, the anti-bacteria ceramic film process inulin extracting solution loaded using two-dimensional nano silver strip of the invention, good decolorizing effect, microorganism removal rate can reach 100% in polysaccharide solution, the decline of membrane flux rate is obviously reduced, and film stable against biological contamination is functional.
Description
Technical field
The present invention relates to ceramic separation film technical fields, and in particular to a kind of anti-bacteria ceramic film for loading two-dimensional nano silver strip
Preparation method, and the application of the antimicrobial compound film that is prepared by this method in Sugarcane juice decolorization belongs to separation film preparation
Technology and application.
Background technique
Synanthrin (inulin) is also known as inulin, is deposit property polysaccharide, being widely distributed in nature in plant.Inulin
By fructosyl through β-glucosides key connection, end often has -D-Glucose base, and it is the one of dietary fiber that the degree of polymerization, which is 2~60,
Kind, it can be used as food or raw-food material use.Synanthrin is known as " the seventh-largest nutrient " --- dietary fiber by nutrition educational circles already
Inulin, while having both prebiotics effect.The enzyme that inulin is decomposed due to all lacking in humans and animals body, so inulin is by human body
, generally can not be by stomach and small intestinal absorption after intake, therefore will not influence the intracorporal blood glucose level of people, it can be used as the new of diabetes patient
Type sweetener.But inulin can by the bifidocaterium and lactobacillus-fermented in colon, to promote the generation of beneficial bacteria of intestinal tract, thus
Improve intestine microenvironment, promotes absorption of the human body to minerals, improve constipation.Synanthrin functional components have improvement enteron aisle
Health and the effect for reducing sugar level, therefore it has extensive use in terms of food, beverage, dietary supplements and pharmacy.
Main removal of impurities has lime to fill carbon method, Sevag method, milk of lime-with discoloration method in the main processing technology of synanthrin
Phosphoric acid method, salt precipitation method and ultrafiltrationmembrane process.Ultrafiltrationmembrane process technique possesses easy to operate, the production cycle compared to other techniques
Short, separative efficiency is high, low power consumption and other advantages, therefore ultrafiltrationmembrane process is gradually used widely in the removal of impurities decoloration of synanthrin.Chrysanthemum
Often containing the impurity such as pectin, protein, organic acid, cellulose and there are a small amount of bacterium in sugared extracting solution, protected under normal temperature condition
It deposits and rotten acidification easily occurs.In ultra filtering clarifying decolorization, ceramic membrane surface, which easily forms biological pollution, leads to the quick of flux
Decaying, is unfavorable for the long-time service of ceramic membrane.With the continuous development of ultrafiltration membrane technique, the performance of film also proposed with high
It is required that, it is desirable to ceramic membrane itself has good degerming and antibacterial effect.
It has been that many research institutes prove that silver, which is killed or inhibits the ability of pathogenic microorganism,.In numerous antibacterial agents, metal
Silver possesses high thermal stability, biological stability, high catalytic activity, to human body hypotoxicity, the advantages that broad-spectrum antibacterial property.Antibacterial
Mechanism is not yet explained that main mechanism plays the role of following three kinds completely: (1) silver releases silver ion and is moved by Electrostatic Absorption
Bacterial cell surface is moved, then penetrating cell film enters cell, and wherein silver ion and sulphur and phosphorus interact, especially half Guang
The mercapto (S-H) of propylhomoserin and other compounds form S-Ag or disulfide bond.This reaction is by destroying electron transmission, inactivation
Protein and dimerization DNA and irreversible damage is caused to bacterial cell, eventually lead to cell death because its be proliferated energy
Power is lost；(2) contact killing or contact inhibition mode: Ag itself can be anchored to cell wall and then penetrate into cell.Wall
The fault of construction of upper formation eventually leads to bacterial cell permeability and gradually increases, and cell membrane collapse, intracellular matter finally discharges
(3) silver-colored catalyzing disinfection: silver ion can promote the generation of active oxygen and hydroxyl radical free radical, can destroy bacterium cell structure, and prevent
The only formation of the biomembrane of supporting body surface.
It proposes to be placed in porous ceramic film in the mixed liquor of silver ammino solution and glucose solution in CN 104084055A, it is quiet
It sets to elemental silver and is carried on porous ceramics film surface, the modified porous ceramic film of silver is obtained, to remove applied to direct drinking water purification
Bacterium, but this method cannot change the aperture of film, and the silver-colored simple substance for standing deposition is also easy to be lost.
Summary of the invention
It is an object of the invention to overcome the ceramic membrane of the prior art not have the defect of anti-microbial property, and provide load two
Tie up nano silver slice anti-bacteria ceramic film preparation method, it is a further object of the present invention to provide it is a kind of by the above method preparation
Anti-bacteria ceramic film and the application in synanthrin clarification decoloration.
The specific technical solution of the present invention is: a kind of preparation method for the anti-bacteria ceramic film loading two-dimensional nano silver strip,
Specific step is as follows: two-dimensional sheet nano silver slice material being dispersed in colloidal sol, coating liquid is made, with coating liquid obtained
Primary film, once roasts after wet film is dried on supporter, and the antibacterial of intact load two-dimensional nano silver strip is made
Ceramic membrane.
It is preferred that above-mentioned supporter is chip, single tube or the doughnut porous material that average pore size is 50~200nm.
It is preferred that the drying temperature of above-mentioned wet film is 40~80 DEG C；Maturing temperature is 400~1100 DEG C, heating rate 0.5
~5 DEG C/min, calcining time is 2~4h.
It is preferred that above-mentioned colloidal sol is the colloidal sol containing one of titanium, zirconium, aluminium or several elements, metallic element is in film
Content in liquid is 0.1mol/L~2mol/L；The average grain diameter of colloidal sol is 3~20nm；Two-dimensional nano silver strip contains in coating liquid
Amount is 0.05g/L~0.2g/L.
The present invention also provides a kind of anti-bacteria ceramic films for loading two-dimensional nano silver strip, are prepared by above-mentioned preparation method
It arrives.
The present invention also provides the anti-bacteria ceramic film of above-mentioned load two-dimensional nano silver strip answering in synanthrin clarification decoloration
With.
Above-mentioned two-dimensional sheet nano silver slice material is also possible to other two-dimentional antimicrobial sheet materials.
The film mode is that dip-coating method or spin-coating method, wherein single tube and doughnut porous material are selected
Film mode be dip-coating method, chip porous material select film mode be spin-coating method.
Mesoporous ceramic membrane prepared by the present invention can be TiO2、ZrO2、A12O3And its composite membrane.
And Nano silver piece possesses good electric conductivity, chemical stability and resists as a kind of novel two-dimensional slice material
The advantages that oxidisability, has broad application prospects in chemical catalysis, electronics and field of biomedicine.It is replaced with two-dimentional Nano silver piece
It will be a good selection for traditional silver ammino solution as antibacterial agent.Two-dimentional Nano silver piece is introduced into colloidal sol by the present invention
In, film of energy prepares the ceramic super-filtering film of complete high throughput, while two-dimentional Nano silver piece can play in Sugarcane juice decolorization
Good antibiotic and sterilizing effect, has very wide application prospect.
Two-dimentional Nano silver piece is carried on ceramic membrane surface, has both been able to achieve the removal of impurity, can also mitigate the life of film surface
Object pollution.Nano silver piece is supported on ceramic membrane surface by sol-gal process by the present invention, can be prepared perfect sunken
Small aperture ceramic film.
The utility model has the advantages that
1. Nano silver piece can prevent the interior infiltration of colloidal sol in film-forming process, keeps ceramic film surface not crack completely, improve
The permeation flux of ceramic membrane.
2. nano silver slice is supported on ceramic membrane by sol-gal process, silver is just firmly carried on carrier in this way, securely
The silver-colored simple substance being carried on carrier is not soluble in water, therefore can with lasting stability keep silver content constant and will not be diffused into water
In, it is harmless；
3. porous ceramic film not only can be used as the carrier of silver, while can be used for the clarification decolorization of synanthrin liquid glucose, made
The ceramic membrane pore diameter range obtained is 5-10nm, this pore diameter range can remove the protein in liquid glucose, pectin and a small amount of bacterium.Silver
Nanometer sheet all has fabulous antifouling effect to albumen pollutant and microorgranic contaminant.
Filming technology selected by 4. be a film, it is once sintered prepare mesoporous ceramic membrane, preparation process simply, the period
It is short, it is a kind of method for efficiently preparing mesoporous ceramic membrane, is suitble to large-scale production.
Detailed description of the invention
Fig. 1 is the SEM figure of Ag nanometer sheet in embodiment.
Fig. 2 is the pictorial diagram of the coating liquid prepared in comparative example 1 and embodiment 1, and wherein a is the painting prepared in comparative example 1
Film liquid, b are the coating liquid of Nano silver piece doping in embodiment 1.
Fig. 3 is the SEM figure of ceramic membrane prepared by comparative example 1 and embodiment 1；Wherein a is pottery prepared in comparative example 1
The section SEM of porcelain film schemes, and b is the section SEM figure of prepared ceramic membrane in embodiment 1, and c is ceramics prepared in comparative example 1
The surface SEM of film schemes, and d is the surface SEM figure of ceramic membrane prepared in embodiment 1.
Fig. 4 is the material liquid and penetrating fluid pictorial diagram that ceramic membrane prepared by embodiment 1 handles synanthrin extracting solution, wherein
A is material liquid, and b is penetrating fluid.
Fig. 5 is Ag-TiO prepared by embodiment 12TiO prepared by ceramic membrane and comparative example 12Ceramic film process synanthrin mentions
Take the variations of flux of liquid.
Fig. 6 is microorganism growing state figure；Wherein a is that synanthrin extracts the microorganism life after the culture of material liquid blood agar plate
Long situation, b are using the microorganism growing state of synanthrin extracting solution after film process ceramic in embodiment 1, and c is to use comparative example 1
The microorganism growing state of synanthrin extracting solution after middle ceramics film process.
Fig. 7 is the microorganism growing state figure after synanthrin extracting solution room temperature is stored for 24 hours；Wherein a is using making pottery in comparative example 1
After porcelain film process synanthrin extracting solution room temperature storage for 24 hours after microorganism growing state, b be using ceramic membrane in embodiment 1 at
Microorganism growing state after reason after the storage for 24 hours of synanthrin extracting solution room temperature.
Fig. 8 is inhibition zone method test result photo；Wherein a is that the inhibition zone method of the ceramic film support of supporter tests knot
Fruit photo, b are the inhibition zone method test result photo of the ceramic membrane of the Ag doping prepared in embodiment 2, and c is to make in comparative example 2
The standby ceramic membrane inhibition zone method test result photo for not mixing silver.
Specific embodiment
Embodiment 1
The present invention is described in further detail in conjunction with the embodiments below, but embodiments of the present invention are not limited to
This.
Embodiment 1
The preparation method of the anti-bacteria ceramic ultrafiltration membrane of the Nano silver piece load of the present embodiment, preparation step are as follows:
(1) preparation of coating liquid: silver is added in the aqueous sol that Ti content is 0.1mol/L, aerosol particle size is 15nm and receives
Rice piece, and be dispersed in colloidal sol and coating liquid is made, wherein content of the Nano silver piece in coating liquid is 0.1g/L.
(2) the tubular type ZrO for being 200nm in average pore size with coating liquid obtained2Dip-coating method film is used on supporter,
It is dried in 70 DEG C of baking oven, 4h is then calcined at 400 DEG C with the heating rate of 0.5 DEG C/min in Muffle furnace, it is primary to burn
It is 6.58nm that aperture, which can be obtained, in knot, and the molecular cut off to glucan is 22163Da, pure water flux is 236L/ (m2·h·
Bar Ag-TiO)2Mesoporous ceramic membrane can be used for the clarification decoloration of synanthrin extracting solution.
Fig. 1 is the SEM figure of Ag nanometer sheet in embodiment 1；B is the coating liquid of Nano silver piece doping in Fig. 2, can be with from figure
Find out that Nano silver piece can be evenly dispersed in coating liquid；B in Fig. 3 is the disconnected of the tubular ceramic membrane of addition Nano silver piece preparation
Face electron microscope, d is the tubular ceramic film surface electron microscope that Nano silver piece preparation is added, from electron microscope it can be seen that Nano silver piece adds
Fashionable film surface is complete, and almost without defect, Nano silver piece is evenly dispersed on surface.
Comparative example 1
(1) preparation of coating liquid: prepare Ti content be 0.1mol/L, the aqueous sol that aerosol particle size is 15nm.
(2) the tubular type -Al for being 200nm in average pore size with coating liquid obtained2O3It is applied on supporter with dip-coating method
Film is dried in 70 DEG C of baking oven, then calcines 4h at 400 DEG C with the heating rate of 0.5 DEG C/min in Muffle furnace, once
It is 6.7nm that aperture, which can be obtained, in sintering, and the molecular cut off to glucan is 23042Da, pure water flux is 203L/ (m2·h·
Bar Ag-TiO)2Mesoporous ceramic membrane can be used for the clarification decoloration of synanthrin extracting solution.
Comparative example 1 difference from example 1 is that, Nano silver piece is not added in colloidal sol.
A in Fig. 2 is the prepared coating liquid of comparative example 1；A in Fig. 3 is tubular ceramic membrane prepared in comparative example 1
The SEM of section schemes, and b is the SEM figure of tubular ceramic film surface prepared in comparative example 1.
Synanthrin clarification decoloration and bacteria-eliminating efficacy test:
By the Ag-TiO of the silver load in embodiment 12TiO in ceramic membrane and comparative example 12Ceramic membrane mentions synanthrin with dividing
It takes liquid to be handled, measures percent of decolourization, polysaccharide retention rate and content of microorganisms before and after the processing.Fig. 4 is prepared by embodiment 1
Ceramic membrane material liquid and penetrating fluid that synanthrin extracting solution is handled.Extracting liquid decoloration rate and polysaccharide retention rate situation such as 1 institute of table
Show.
Table one
| Embodiment 1 | Comparative example 1 | |
| Percent of decolourization | 65% | 60% |
| Polysaccharide retention rate | 96.7% | 95.4% |
Ceramic film properties obtained by embodiment 1 can be obtained on percent of decolourization and polysaccharide retention rate performance as upper table, and difference is not
Greatly.
Fig. 5 is Ag-TiO prepared by embodiment 12TiO prepared by ceramic membrane and comparative example 12Ceramic film process synanthrin mentions
Take the variations of flux of liquid.TiO can be obtained2The synanthrin extracting solution attenuation rate of ceramic membrane is 44.6%；Ag-TiO2Ceramic membrane
Polysaccharide solution attenuation rate is 16%, shows that film prepared by embodiment 1 can reduce film surface and be formed by biological pollution,
With certain anti-microbial property.
A is that synanthrin extracts microorganism growing state of the material liquid after blood agar plate culture in Fig. 6, and b is using implementation
In example 1 after ceramic film process synanthrin extracting solution microorganism growing state, c is to use in comparative example 1 synanthrin after ceramic film process
The microorganism growing state of extracting solution.Ceramic membrane prepared in embodiment 1 and comparative example 1 all has well as seen from the figure
Bacteria-eliminating efficacy, degerming rate is about 100%.
A is raw using the microorganism after treated the synanthrin extracting solution room temperature storage for 24 hours of ceramic membrane in comparative example 1 in Fig. 7
Long situation, b are using the microorganism growing state after synanthrin extracting solution room temperature storage for 24 hours after film process ceramic in embodiment 1.Table
The bright synanthrin permeate by ceramics film process prepared by embodiment 1 can have lasting antibacterial effect.
Embodiment 2
(1) preparation of coating liquid: silver is added in the aqueous sol that Ti content is 0.1mol/L, aerosol particle size is 15nm and receives
Rice piece, and be dispersed in colloidal sol and coating liquid is made, wherein content of the Nano silver piece in coating liquid is 0.1g/L.
(2) the chip Al for being 100nm in average pore size with coating liquid obtained2O3Spin-coating method film is used on supporter,
It is dried in 70 DEG C of baking oven, 4h is then calcined at 400 DEG C with the heating rate of 0.5 DEG C/min in Muffle furnace, it is primary to burn
It is 10nm that aperture, which can be obtained, in knot, and pure water flux is 10.6L/ (m2Hbar Ag-TiO)2Mesoporous ceramic membrane.
Comparative example 2
(1) preparation of coating liquid: prepare Ti content be 0.1mol/L, the aqueous sol that aerosol particle size is 15nm.
(2) the chip -Al for being 100nm in average pore size with coating liquid obtained2O3It is applied on supporter with spin-coating method
Film is dried in 60 DEG C of baking oven, then calcines 4h at 400 DEG C with the heating rate of 0.5 DEG C/min in Muffle furnace, once
It is 9nm that aperture, which can be obtained, in sintering, and pure water flux is 9L/ (m2Hbar Ag-TiO)2Mesoporous ceramic membrane.
Ceramic membrane anti-microbial property test:
Chip ceramic membrane prepared in embodiment 2 and comparative example 2 after sterilizing is tightly attached to coated with Escherichia coli
Agar medium center, is cultivated for 24 hours in 37 DEG C of biochemical cultivation case, carries silver ceramics by observation antibacterial circle diameter size evaluation
The anti-microbial property of film.
A in Fig. 8 is the inhibition zone method test result photo of chip ceramic film support, and b is the silver prepared in embodiment 2
The inhibition zone method test result photo of the ceramic membrane of doping, c are that the ceramic membrane inhibition zone method for not mixing silver prepared in comparative example 2 is surveyed
Test result photo.Show that ceramic membrane itself prepared by ceramic film support and comparative example 2 does not have antibiotic property from Comparative result
Can, and there is no bacterium around load silver ceramic membrane prepared by embodiment 2, there is apparent inhibition zone on culture medium, annular space diameter is big
Small about 20mm, sterilizing rate reach 99.99%, and ceramic membrane prepared by embodiment 2 has good anti-microbial property.
Embodiment 3
(1) preparation of coating liquid: silver is added in the acidic sol that Ti content is 1.5mol/L, aerosol particle size is 6nm and receives
Rice piece, and be dispersed in colloidal sol and coating liquid is made, wherein content of the Nano silver piece in coating liquid is 0.15g/L.
(2) the chip Al for being 100nm in average pore size with coating liquid obtained2O3Spin-coating method film is used on supporter,
It is dried in 50 DEG C of baking oven, 4h is then calcined at 400 DEG C with the heating rate of 0.5 DEG C/min in Muffle furnace, it is primary to burn
It is 9.67nm that aperture, which can be obtained, in knot, and the molecular cut off to glucan is 51090Da, pure water flux is 9.8L/ (m2·h·
Bar Ag-TiO)2Mesoporous ceramic membrane can be used for the clarification decoloration of synanthrin extracting solution, percent of decolourization 54.45%.
Embodiment 4
(1) preparation of coating liquid: silver is added in the alkaline sol that Ti content is 0.1mol/L, aerosol particle size is 4nm and receives
Rice piece, and be dispersed in colloidal sol and coating liquid is made, wherein content of the Nano silver piece in coating liquid is 0.1g/L.
(2) the doughnut -Al for being 300nm in average pore size with coating liquid obtained2O3Best-Effort request is used on supporter
Coating method film is dried in 40 DEG C of baking oven, is then calcined at 500 DEG C in Muffle furnace with the heating rate of 1 DEG C/min
4h, the once sintered aperture that can be obtained is 6.05nm, and the molecular cut off to glucan is 18460Da, pure water flux 102L/
(m2Hbar Ag-TiO)2Mesoporous ceramic membrane can be used for the clarification decoloration of synanthrin extracting solution, percent of decolourization 62.16%.
Embodiment 5
(1) silver nanoparticle the preparation of coating liquid: is added in the aqueous sol that zirconium content is 2mol/L, aerosol particle size is 3nm
Piece, and be dispersed in colloidal sol and coating liquid is made, wherein content of the Nano silver piece in coating liquid is 0.05g/L.
(2) the tubular type ZrO for being 50nm in average pore size with coating liquid obtained2It is applied on supporter with Best-Effort request coating method
Film is dried in 80 DEG C of baking oven, then calcines 4h at 600 DEG C with the heating rate of 2 DEG C/min in Muffle furnace, primary to burn
It is 6.18nm that aperture, which can be obtained, in knot, and the molecular cut off to glucan is 19340Da, and pure water flux is 230L/ (m2·h·
Bar Ag-TiO)2Mesoporous ceramic membrane can be used for the clarification decoloration of synanthrin extracting solution, percent of decolourization 60.34%.
Embodiment 6
(1) silver nanoparticle the preparation of coating liquid: is added in the aqueous sol that aluminium content is 2mol/L, aerosol particle size is 20nm
Piece, and be dispersed in colloidal sol and coating liquid is made, wherein content of the Nano silver piece in coating liquid is 0.2g/L.
(2) the tubular type -Al for being 200nm in average pore size with coating liquid obtained2O3Best-Effort request film is used on supporter
Method film is dried in 80 DEG C of baking oven, then calcines 2h at 1100 DEG C with the heating rate of 5 DEG C/min in Muffle furnace,
The once sintered aperture that can be obtained is 5.6nm, and the molecular cut off to glucan is 15581Da, pure water flux 101L/
(m2Hbar Ag-TiO)2Mesoporous ceramic membrane can be used for the clarification decoloration of synanthrin extracting solution, percent of decolourization 61.46%.
Claims (6)
1. a kind of preparation method for the anti-bacteria ceramic film for loading two-dimensional nano silver strip, the specific steps of which are as follows: two-dimensional sheet is received
Rice silver strip material is dispersed in colloidal sol coating liquid is made, with coating liquid obtained on supporter film, wet film is dried
After roast, be made load two-dimensional nano silver strip anti-bacteria ceramic film.
2. preparation method described in claim 1, it is characterised in that the supporter is the piece that average pore size is 50~200nm
Formula, single tube or doughnut porous material.
3. preparation method according to claim 1, it is characterised in that the drying temperature of the wet film is 40~80 DEG C；Roasting
Temperature is 400~1100 DEG C, and heating rate is 0.5~5 DEG C/min, and calcining time is 2~4h.
4. preparation method according to claim 1, it is characterised in that the colloidal sol is to contain one of titanium, zirconium, aluminium
Or the colloidal sol of several elements, content of the metallic element in coating liquid are 0.1mol/L~2mol/L；The average grain diameter of colloidal sol
For 3~20nm；Two-dimensional nano silver strip content in coating liquid is 0.05g/L~0.2g/L.
5. a kind of anti-bacteria ceramic film for loading two-dimensional nano silver strip, it is characterised in that: described in any item by Claims 1 to 4
Preparation method is prepared.
6. loading application of the anti-bacteria ceramic film of two-dimensional nano silver strip in synanthrin clarification decoloration described in a kind of claim 5.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008018718A1 (en) * | 2006-08-07 | 2008-02-14 | Inktec Co., Ltd. | Process for preparation of silver nanoparticles, and the compositions of silver ink containing the same |
| CN104084055A (en) * | 2014-06-25 | 2014-10-08 | 华南理工大学 | Silver-modified porous ceramic membrane and preparation method and application thereof |
| CN104128101A (en) * | 2014-07-18 | 2014-11-05 | 南京工业大学 | Silver doped metal ceramic composite membrane and preparation method thereof |
| CN106810212A (en) * | 2016-12-30 | 2017-06-09 | 海天水务集团股份公司 | A kind of manufacture craft of high-efficient flat-plate ceramic membrane |
-
2018
- 2018-12-21 CN CN201811568433.1A patent/CN110523294A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008018718A1 (en) * | 2006-08-07 | 2008-02-14 | Inktec Co., Ltd. | Process for preparation of silver nanoparticles, and the compositions of silver ink containing the same |
| CN104084055A (en) * | 2014-06-25 | 2014-10-08 | 华南理工大学 | Silver-modified porous ceramic membrane and preparation method and application thereof |
| CN104128101A (en) * | 2014-07-18 | 2014-11-05 | 南京工业大学 | Silver doped metal ceramic composite membrane and preparation method thereof |
| CN106810212A (en) * | 2016-12-30 | 2017-06-09 | 海天水务集团股份公司 | A kind of manufacture craft of high-efficient flat-plate ceramic membrane |
Non-Patent Citations (2)
| Title |
|---|
| 曲睿晶等: ""陶瓷膜分离技术在制糖工业中的研究应用"", 《中国调味品》 * |
| 莫博等: ""银纳米片的研究进展"", 《物理化学学报》 * |
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