CN108745005A - A kind of adsorbed film and preparation method thereof for sewage disposal - Google Patents
A kind of adsorbed film and preparation method thereof for sewage disposal Download PDFInfo
- Publication number
- CN108745005A CN108745005A CN201810521713.0A CN201810521713A CN108745005A CN 108745005 A CN108745005 A CN 108745005A CN 201810521713 A CN201810521713 A CN 201810521713A CN 108745005 A CN108745005 A CN 108745005A
- Authority
- CN
- China
- Prior art keywords
- sewage disposal
- rgd peptide
- preparation
- woven fabrics
- film
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- B01D67/0079—Manufacture of membranes comprising organic and inorganic components
-
- 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
- B01D69/12—Composite membranes; Ultra-thin membranes
-
- 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
-
- 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
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
-
- 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
- B01D71/06—Organic material
- B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The adsorbed film and preparation method thereof that the present invention relates to a kind of for sewage disposal, belongs to technical field of sewage.The adsorbed film and preparation method thereof that the technical problem to be solved by the present invention is to provide a kind of for sewage disposal.Nano silicone diatomaceous earth is first scattered in Arg-Ala-asparatate by this method（RGD）In the solution of polypeptide, then wherein by non-woven fabrics infiltration, pH value is adjusted, the nonwoven carrier of load rgd peptide and nano diatomite is obtained after dry；High glycoform DMEM culture medium solutions are sprayed in non-woven fabrics both sides, causes self-assembling polypeptide, generates nanometer water gel；Finally again in the compound PVDF thin film in gel both sides, the sewage disposal film of respectively upper PVDF thin film layer, polypeptide hydrogel layer, nonwoven layer, polypeptide hydrogel layer and lower PVDF thin film layer from top to bottom is obtained;Sewage disposal film obtained, aperture is tiny, sorption channel is various, has higher sewage adsorption efficiency.
Description
Technical field
The adsorbed film and preparation method thereof that the present invention relates to a kind of for sewage disposal, belongs to technical field of sewage.
Background technology
Correlative study shows to cause in the pollutant of water pollution, and heavy metal occupies leading position, some heavy metal (such as chromium
Deng) health and ecological environment are constituted seriously threaten.The administering method of waste water from dyestuff mainly has chemical method, biology at present
Method and Physical.Physical is the method for handling waste water from dyestuff most simple cleaning, is adsorbed frequently with adsorbent, wherein coal
The natural adsorbents price such as ash, clay is less expensive but adsorption effect is poor；The higher price of acticarbon, adsorption effect compared with
The natural adsorbents such as coal ash, clay are good, but still cannot be satisfied the demand of people.Physisorphtion has absorption heavy metal
Preferable effect, such as mineral material class adsorbent have excellent surface characteristic and ionic adsorption and switching performance.In addition,
Some in wastewater from chemical industry contain such as cyanogen, phenol, arsenic, mercury, cadmium or the toxic or hypertoxic substance of lead, under certain concentration, to life
Object and microorganism generate toxic effect.In addition it may also contain irritations, corrosive substances such as inorganic acid, bases.
There are mainly two types of technologies for absorption at present, first, compound adsorbent directly is made with adsorbability material, such as with diatom
Soil, oyster shell whiting, zeolite powder and mesopore molecular sieve etc. such as are sintered, impregnate, drying at the porous structure material made from multiple process
Material realizes the removal of contents of many kinds of heavy metal ion in water body.For example, the patent of invention application No. is 201611154967.0 discloses
A kind of sewage disposal production method of kieselguhr adsorption film, includes the following steps, diatomite original ore is ground into silicon by step 1
Diatomaceous earth particle；Diatomite particle is ground by step 2；Step 3 purifies to obtain diatomite；Step 4 carries out high-temperature calcination；
Step 5 crushes the diatomite after calcining；Modifying agent is added in step 6 diatomite powder, after stirring evenly
At a temperature of 800~850 DEG C, heating obtains modification infusorial earth in 1~2 hour；Step 7 is modified by mass fraction by 100~120
Diatomite, 10~15 parts of pore formers and 30~40 parts of lytic agent stir obtained casting solution；Step 8 is by casting solution
Coated in obtaining basement membrane on non-woven fabrics；Basement membrane is positioned over drying oven drying and kieselguhr adsorption film is made by step 9.The invention energy
Enough production sewage treatment products, can be effectively treated micro- pollution water supply and sewage, efficiently utilize diatomite original ore.This
Kind technique energy consumption is higher, and technique is cumbersome, and efficiency is relatively low, does not meet the developing direction of current green industry.
Another technology is that adsorption stuffing is blended in resin.For example application No. is 201310479299.9 invention is special
Profit discloses a kind of PVDF plate membranes of absorption heavy metal ion, total with PVDF using tannic acid modified nano-attapulgite
At plate membrane, functional materials therein are layer chain structure, the bumps of the magnesium silicate containing Shuifu County for striking on a glass after mixed
Stick soil.To the adsorption rate of nickel ion close to 40%, to the adsorption rate of mercury ion close to 60%.But this kind of plate membrane can have absorption
Capacity is relatively small, attapulgite holds desorption and is wrapped by.
Application No. is 201610423522.1 patents of invention to disclose a kind of preparation method of PVDF adsorbed films, belongs to water
Processing technical field of membrane.With Kynoar (PVDF) for main membrane material, organise by modified PVDF and with functionality
It closes object to combine, functional organic compound is coated to liner surface, modified PVDF is coated to adsorbent surface, and one prepared
Preparation method of the kind with adsorptivity pvdf membrane.For going the heavy metal ion such as copper, mercury, cadmium, nickel in water removal.The adsorbed film
In functional organic compound be with the chelating agent with the stronger binding ability of metal ion, the adsorbed film is by hydrophilic PVDF
It is combined with adsorbent, can be discharged without external pressure effect, can realize absorption, filtration simultaneously, absorption effect big with adsorption capacity
Rate is high, and the characteristics of easily desorption in acid solution, and preparation process is simple, at low cost.
As it can be seen that presently, there are the technologies with foam of polymers absorption effluent, but be generally directly by adsorption stuffing be blended in
In resin, there is only the uneven problems of dispersion, and adsorption efficiency is relatively low；Simultaneously to the function of a variety of absorption of realization, need
A variety of different adsorption stuffings are added, filler is easily reunited, therefore can lead to mechanical properties decrease.
Invention content
For the low defect of existing sewage disposal adsorbent thin film adsorption efficiency, the present invention provides a kind of dirt that adsorption efficiency is high
Water process film and preparation method thereof.
First technical problem that the present invention solves is to provide a kind of preparation method of the adsorbed film for sewage disposal.
Preparation method of the present invention for the adsorbed film of sewage disposal, includes the following steps：
A, nonwoven carrier is prepared：Nano silicone diatomaceous earth is scattered in the solution of rgd peptide, then wherein by non-woven fabrics infiltration,
PH value is adjusted to 7.5~8.5, drying is taken out after 40~60min, the non-woven fabrics for obtaining load rgd peptide and nano diatomite carries
Body；
B, nanometer water gel is loaded：The high sugar of nonwoven carrier both sides spray of rgd peptide and nano diatomite is loaded in a steps
Type DMEM culture medium solutions cause self-assembling polypeptide, obtain the non-woven fabrics of load nanometer water gel；
C, sewage disposal film is prepared：The compound PVDF thin film in non-woven fabrics both sides of nanometer water gel is loaded in b step, obtains dirt
Membrane for water treatment.
Nano silicone diatomaceous earth is first scattered in Arg-Ala-asparatate by the method for the present invention（RGD）Polypeptide
In solution, then wherein by non-woven fabrics infiltration, pH value is adjusted to 8.0 or so, load rgd peptide and nano diatomite are obtained after dry
Nonwoven carrier；High glycoform DMEM culture medium solutions are sprayed in non-woven fabrics both sides, causes self-assembling polypeptide, generates nanoscale water
Gel；Finally again in the compound PVDF thin film in gel both sides, obtain being respectively upper PVDF thin film layer, polypeptide hydrogel from top to bottom
The sewage disposal film of layer, nonwoven layer, polypeptide hydrogel layer and lower PVDF thin film layer, wherein nonwoven layer contain a nanometer diatom
Soil.It can be obtained that aperture is tiny, the numerous 5 layers of composite adsorption films of sorption channel by successively compound, wherein polypeptide hydrogel has
Hydrophily to a certain degree can increase the connectivity between fenestra；Various sorbing materials generate synergistic effect simultaneously, and absorption is logical
Adsorbent thin film prepared by the more conventional technique in road is more, and adsorption efficiency gets a promotion.
Wherein, a steps are mainly to prepare the process of nonwoven carrier, and rgd peptide and nano diatomite are supported on nonwoven
On cloth.
Nano diatomite is nano level diatomite.Diatomite has porosity, lower density, larger specific surface
The advantages that long-pending, opposite Incoercibility and chemical stability, the method for the present invention is supported on non-woven fabrics, to improve absorption
Efficiency.
Rgd peptide is Arg-Ala-asparatate polypeptide, is one of most common polypeptide, is widely present in life
, can be as the recognition site of integrin and the interaction of its ligand in object, it can be with mediated cell and extracellular matrix and thin
The adhesion of intercellular, while also having the function of signal transduction, currently, the research to rgd peptide is mainly present in biological system
In medicine, such as the influence to platelet function, the application in medicine for treating thrombus object, research in the regeneration induction of bone tissue,
Research etc. in tumour cell.It was found by the inventors of the present invention that rgd peptide can self assembly, to obtain gel rubber material, improve
To the adsorption efficiency of sewage disposal, therefore, the present invention loads rgd peptide in non-woven fabrics extexine.
In a steps, the solution of the preferably described rgd peptide is water-soluble with the dimethyl sulfoxide (DMSO) of 0.5wt% using rgd peptide as solute
Liquid is solvent.
Preferably, a concentration of 0.2~1wt% of rgd peptide.
Preferably, in a steps, the w/v of the solution of nano silicone diatomaceous earth and rgd peptide is 2~8g：5mL；It is excellent
It is 4g to select the w/v of the solution of nano silicone diatomaceous earth and rgd peptide：5mL.
Common non-woven fabrics is suitable for the present invention, it is preferred that the non-woven fabrics is polypropylene non-woven fabric or non-woven polyester
Cloth.It is furthermore preferred that the non-woven fabrics is polypropylene non-woven fabric.
Preferably, in a steps, pH value is adjusted to 8, conventional ammonium hydroxide or sodium hydroxide is selected to be adjusted as pH
Agent.Drying is taken out after 50min.
B step is molten in the nonwoven carrier both sides of load rgd peptide and nano diatomite spray high glycoform DMEM culture mediums
Liquid causes self-assembling polypeptide, obtains the non-woven fabrics of load nanometer water gel.
DMEM is a kind of culture medium containing various amino acid and glucose, is developed on the basis of MEM culture mediums.With
MEM relatively increases various composition dosage, while being divided into as high glycoform（Less than 4500mg/L）(it is less than 1000mg/ with low-sugar type
L).Preferably, the glucose content in high glycoform DMEM culture medium solutions of the present invention is 4000~4500 mg/L.
DMEM is the abbreviation of dulbecco's modified eagle medium, so its feature includes mainly following:(1) amino
Acid content is 2 times of Yi Geer culture mediums, and contains nonessential amino acid, such as glycine;(2) vitamin content is Yi Geer
4 times of culture medium;3) containing the important substance in glycolytic pathway -- pyruvic acid;(4) contain micro iron ion.The present invention's
High glycoform DMEM culture medium solutions may be used commercially available.
The present inventor invents under study for action, and high glycoform is sprayed in the nonwoven carrier both sides for having loaded rgd peptide
DMEM culture medium solutions, you can the self assembly for causing polypeptide obtains the non-woven fabrics of load nanometer water gel；High glycoform DMEM trainings
The spray flux for supporting based sols is the 30% of rgd peptide quality；It is followed successively by polypeptide hydrogel layer, nonwoven layer, more from top to bottom
Three layers of laminated film of peptide hydrogel layer.
Step c is obtained in the compound PVDF thin film in non-woven fabrics both sides of load nanometer water gel at five layers of compound sewage
Film is managed, is followed successively by PVDF thin film layer, polypeptide hydrogel layer, nonwoven layer, polypeptide hydrogel layer and PVDF thin film layer from top to bottom.
Pvdf membrane, that is, PVDF membrane（polyvinylidene fluoride）, water process pvdf membrane is divided into super
Two kinds of filter membrane and microfiltration membranes are mainly used for the pre-treatment of sewage, sea water desalination etc., remove the impurity such as macromolecular, bacterium, silt.
With mechanical strength and toughness high, mould proof property, high-wearing feature, to high osmotic-pressure-tolerant, the heat-resistant stability of gas and liquid
Good, fire-retardant, creep resistance is good in low cigarette, temperature lifting process, purity is high, is easy the processing of progress melt, is resistance to most of chemistry
Product and solvent have rigid and flexible form, uvioresistant and nuclear radiation concurrently, are shock resistance, weatherability, low temperature resistant
The advantages that up to -40 DEG C, therefore, sewage disposal film outermost layer of the invention are pvdf membrane.
The compound method of plastic film is commonly suitable for the present invention.Such as：Dry type composite algorithm, wet type composite algorithm
Deng, it is preferred that the present invention uses dry type composite algorithm, by adhesive（Glue) it is coated in answering for two pieces of PVDF thin films up and down to be composite
On conjunction face, then extra solvent is vapored away by drying tunnel, then the non-woven fabrics for loading nanometer water gel is placed on upper and lower two
Among block PVDF thin film, with hot-pressing roller press together to get.
Second technical problem that the present invention solves is to provide a kind of adsorbed film for sewage disposal.
The present invention is used for the adsorbed film of sewage disposal, is prepared using the above method.The sewage disposal film on to
Lower is respectively upper PVDF thin film layer, polypeptide hydrogel layer, nonwoven layer, polypeptide hydrogel layer and lower PVDF thin film layer, it is seen then that
For aperture, tiny, the numerous 5 layers of composite adsorption films of sorption channel, wherein polypeptide hydrogel have the sewage disposal film of the present invention
Hydrophily to a certain degree can increase the connectivity between fenestra；Various sorbing materials generate synergistic effect simultaneously, and absorption is logical
Adsorbent thin film prepared by the more conventional technique in road is more, and adsorption efficiency gets a promotion.
Compared with prior art, the present invention has the advantages that：
Nano silicone diatomaceous earth is first scattered in Arg-Ala-asparatate by the method for the present invention（RGD）The solution of polypeptide
In, then wherein by non-woven fabrics infiltration, adjust pH value, the nonwoven carrier of load rgd peptide and nano diatomite is obtained after dry；
High glycoform DMEM culture medium solutions are sprayed in non-woven fabrics both sides, causes self-assembling polypeptide, generates nanometer water gel；Finally again
In the compound PVDF thin film in gel both sides, obtain be respectively from top to bottom upper PVDF thin film layer, polypeptide hydrogel layer, nonwoven layer,
The sewage disposal film of polypeptide hydrogel layer and lower PVDF thin film layer, preparation method is simple and practicable, and cost is relatively low, is suitable for work
The big production of industryization.
The sewage disposal film that the method for the present invention is prepared, aperture is tiny, sorption channel is various, has higher sewage
Adsorption efficiency.
Specific implementation mode
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
The adsorbed film for sewage disposal of the present invention is prepared with the following method, includes the following steps：
A, nonwoven carrier is prepared：Nano silicone diatomaceous earth is scattered in the solution of rgd peptide, then polypropylene non-woven fabric is infiltrated
Wherein, drying is taken out after adjusting pH value to 7.5,40min, obtains the nonwoven carrier of load rgd peptide and nano diatomite；Its
In, the solution of the rgd peptide be using rgd peptide as solute, using the dimethyl sulphoxide aqueous solution of 0.5wt% as solvent prepares and
At, a concentration of 0.2wt% of rgd peptide in the solution of rgd peptide, the bulking value of the solution of nano silicone diatomaceous earth and rgd peptide
Than for 2g：5mL.
B, nanometer water gel is loaded：The nonwoven carrier both sides that rgd peptide and nano diatomite are loaded in a steps spray
High glycoform DMEM culture medium solutions, the spray flux of high glycoform DMEM culture medium solutions are the 30% of rgd peptide quality, cause polypeptide
Self assembly obtains the non-woven fabrics of load nanometer water gel；Glucose content in high glycoform DMEM culture medium solutions is
4000mg/L。
C, sewage disposal film is prepared：The compound PVDF thin film in non-woven fabrics both sides of nanometer water gel is loaded in b step, is obtained
To sewage disposal film.The complex method uses dry type composite algorithm, and glue is specially coated in two pieces of PVDF up and down to be composite
On the composite surface of film, then extra solvent is vapored away by drying tunnel, then the nonwoven for loading nanometer water gel is laid
Among upper and lower two pieces of PVDF thin films, with hot-pressing roller press together to get.
By the above method, can obtain being respectively upper PVDF thin film layer, polypeptide hydrogel layer, non-woven fabrics from top to bottom
Five layers of laminated film of layer, polypeptide hydrogel layer and lower PVDF thin film layer.
Embodiment 2
The adsorbed film for sewage disposal of the present invention is prepared with the following method, includes the following steps：
A, nonwoven carrier is prepared：Nano silicone diatomaceous earth is scattered in the solution of rgd peptide, then polypropylene non-woven fabric is infiltrated
Wherein, drying is taken out after adjusting pH value to 8.5,60min, obtains the nonwoven carrier of load rgd peptide and nano diatomite；Its
In, the solution of the rgd peptide be using rgd peptide as solute, using the dimethyl sulphoxide aqueous solution of 0.5wt% as solvent prepares and
At, a concentration of 1wt% of rgd peptide in the solution of rgd peptide, the w/v of the solution of nano silicone diatomaceous earth and rgd peptide
For 8g：5mL.
B, nanometer water gel is loaded：The nonwoven carrier both sides that rgd peptide and nano diatomite are loaded in a steps spray
High glycoform DMEM culture medium solutions, the spray flux of high glycoform DMEM culture medium solutions are the 30% of rgd peptide quality, cause polypeptide
Self assembly obtains the non-woven fabrics of load nanometer water gel；Glucose content in high glycoform DMEM culture medium solutions is
4000mg/L。
C, sewage disposal film is prepared：The compound PVDF thin film in non-woven fabrics both sides of nanometer water gel is loaded in b step, is obtained
To sewage disposal film.The complex method uses dry type composite algorithm, and glue is specially coated in two pieces of PVDF up and down to be composite
On the composite surface of film, then extra solvent is vapored away by drying tunnel, then the nonwoven for loading nanometer water gel is laid
Among upper and lower two pieces of PVDF thin films, with hot-pressing roller press together to get.
By the above method, can obtain being respectively upper PVDF thin film layer, polypeptide hydrogel layer, non-woven fabrics from top to bottom
Five layers of laminated film of layer, polypeptide hydrogel layer and lower PVDF thin film layer.
Embodiment 3
The adsorbed film for sewage disposal of the present invention is prepared with the following method, includes the following steps：
A, nonwoven carrier is prepared：Nano silicone diatomaceous earth is scattered in the solution of rgd peptide, then polypropylene non-woven fabric is infiltrated
Wherein, drying is taken out after adjusting pH value to 8,55min, obtains the nonwoven carrier of load rgd peptide and nano diatomite；Its
In, the solution of the rgd peptide be using rgd peptide as solute, using the dimethyl sulphoxide aqueous solution of 0.5wt% as solvent prepares and
At, a concentration of 0.4wt% of rgd peptide in the solution of rgd peptide, the bulking value of the solution of nano silicone diatomaceous earth and rgd peptide
Than for 3g：5mL.
B, nanometer water gel is loaded：The nonwoven carrier both sides that rgd peptide and nano diatomite are loaded in a steps spray
High glycoform DMEM culture medium solutions, the spray flux of high glycoform DMEM culture medium solutions are the 30% of rgd peptide quality, cause polypeptide
Self assembly obtains the non-woven fabrics of load nanometer water gel；Glucose content in high glycoform DMEM culture medium solutions is 4300
mg/L。
C, sewage disposal film is prepared：The compound PVDF thin film in non-woven fabrics both sides of nanometer water gel is loaded in b step, is obtained
To sewage disposal film.The complex method uses dry type composite algorithm, and glue is specially coated in two pieces of PVDF up and down to be composite
On the composite surface of film, then extra solvent is vapored away by drying tunnel, then the nonwoven for loading nanometer water gel is laid
Among upper and lower two pieces of PVDF thin films, with hot-pressing roller press together to get.
By the above method, can obtain being respectively upper PVDF thin film layer, polypeptide hydrogel layer, non-woven fabrics from top to bottom
Five layers of laminated film of layer, polypeptide hydrogel layer and lower PVDF thin film layer.
Embodiment 4
The adsorbed film for sewage disposal of the present invention is prepared with the following method, includes the following steps：
A, nonwoven carrier is prepared：Nano silicone diatomaceous earth is scattered in the solution of rgd peptide, then polypropylene non-woven fabric is infiltrated
Wherein, drying is taken out after adjusting pH value to 8.2,50min, obtains the nonwoven carrier of load rgd peptide and nano diatomite；Its
In, the solution of the rgd peptide be using rgd peptide as solute, using the dimethyl sulphoxide aqueous solution of 0.5wt% as solvent prepares and
At, a concentration of 0.8wt% of rgd peptide in the solution of rgd peptide, the bulking value of the solution of nano silicone diatomaceous earth and rgd peptide
Than for 6g：5mL.
B, nanometer water gel is loaded：The nonwoven carrier both sides that rgd peptide and nano diatomite are loaded in a steps spray
High glycoform DMEM culture medium solutions, the spray flux of high glycoform DMEM culture medium solutions are the 30% of rgd peptide quality, cause polypeptide
Self assembly obtains the non-woven fabrics of load nanometer water gel；Glucose content in high glycoform DMEM culture medium solutions is 4300
mg/L。
C, sewage disposal film is prepared：The compound PVDF thin film in non-woven fabrics both sides of nanometer water gel is loaded in b step, is obtained
To sewage disposal film.The complex method uses dry type composite algorithm, and glue is specially coated in two pieces of PVDF up and down to be composite
On the composite surface of film, then extra solvent is vapored away by drying tunnel, then the nonwoven for loading nanometer water gel is laid
Among upper and lower two pieces of PVDF thin films, with hot-pressing roller press together to get.
By the above method, can obtain being respectively upper PVDF thin film layer, polypeptide hydrogel layer, non-woven fabrics from top to bottom
Five layers of laminated film of layer, polypeptide hydrogel layer and lower PVDF thin film layer.
Embodiment 5
The adsorbed film for sewage disposal of the present invention is prepared with the following method, includes the following steps：
A, nonwoven carrier is prepared：Nano silicone diatomaceous earth is scattered in the solution of rgd peptide, then polypropylene non-woven fabric is infiltrated
Wherein, drying is taken out after adjusting pH value to 7.8,48min, obtains the nonwoven carrier of load rgd peptide and nano diatomite；Its
In, the solution of the rgd peptide be using rgd peptide as solute, using the dimethyl sulphoxide aqueous solution of 0.5wt% as solvent prepares and
At, a concentration of 0.6wt% of rgd peptide in the solution of rgd peptide, the bulking value of the solution of nano silicone diatomaceous earth and rgd peptide
Than for 5g：5mL.
B, nanometer water gel is loaded：The nonwoven carrier both sides that rgd peptide and nano diatomite are loaded in a steps spray
High glycoform DMEM culture medium solutions, the spray flux of high glycoform DMEM culture medium solutions are the 30% of rgd peptide quality, cause polypeptide
Self assembly obtains the non-woven fabrics of load nanometer water gel；Glucose content in high glycoform DMEM culture medium solutions is 4500
mg/L。
C, sewage disposal film is prepared：The compound PVDF thin film in non-woven fabrics both sides of nanometer water gel is loaded in b step, is obtained
To sewage disposal film.The complex method uses dry type composite algorithm, and glue is specially coated in two pieces of PVDF up and down to be composite
On the composite surface of film, then extra solvent is vapored away by drying tunnel, then the nonwoven for loading nanometer water gel is laid
Among upper and lower two pieces of PVDF thin films, with hot-pressing roller press together to get.
By the above method, can obtain being respectively upper PVDF thin film layer, polypeptide hydrogel layer, non-woven fabrics from top to bottom
Five layers of laminated film of layer, polypeptide hydrogel layer and lower PVDF thin film layer.
Embodiment 6
The adsorbed film for sewage disposal of the present invention is prepared with the following method, includes the following steps：
A, nonwoven carrier is prepared：Nano silicone diatomaceous earth is scattered in the solution of rgd peptide, then polypropylene non-woven fabric is infiltrated
Wherein, drying is taken out after adjusting pH value to 8,50min, obtains the nonwoven carrier of load rgd peptide and nano diatomite；Its
In, the solution of the rgd peptide be using rgd peptide as solute, using the dimethyl sulphoxide aqueous solution of 0.5wt% as solvent prepares and
At, a concentration of 0.5wt% of rgd peptide in the solution of rgd peptide, the bulking value of the solution of nano silicone diatomaceous earth and rgd peptide
Than for 4g：5mL.
B, nanometer water gel is loaded：The nonwoven carrier both sides that rgd peptide and nano diatomite are loaded in a steps spray
High glycoform DMEM culture medium solutions, the spray flux of high glycoform DMEM culture medium solutions are the 30% of rgd peptide quality, cause polypeptide
Self assembly obtains the non-woven fabrics of load nanometer water gel；Glucose content in high glycoform DMEM culture medium solutions is 4500
mg/L。
C, sewage disposal film is prepared：The compound PVDF thin film in non-woven fabrics both sides of nanometer water gel is loaded in b step, is obtained
To sewage disposal film.The complex method uses dry type composite algorithm, and glue is specially coated in two pieces of PVDF up and down to be composite
On the composite surface of film, then extra solvent is vapored away by drying tunnel, then the nonwoven for loading nanometer water gel is laid
Among upper and lower two pieces of PVDF thin films, with hot-pressing roller press together to get.
By the above method, can obtain being respectively upper PVDF thin film layer, polypeptide hydrogel layer, non-woven fabrics from top to bottom
Five layers of laminated film of layer, polypeptide hydrogel layer and lower PVDF thin film layer.
Comparative example 1
Sewage disposal film is prepared with the following method, includes the following steps：
A, nonwoven carrier is prepared：Nano silicone diatomaceous earth is scattered in the solution of rgd peptide, then polypropylene non-woven fabric is infiltrated
Wherein, drying is taken out after adjusting pH value to 8,50min, obtains the nonwoven carrier of load rgd peptide and nano diatomite；Its
In, the solution of the rgd peptide be using rgd peptide as solute, using the dimethyl sulphoxide aqueous solution of 0.5wt% as solvent prepares and
At, a concentration of 0.5wt% of rgd peptide in the solution of rgd peptide, the bulking value of the solution of nano silicone diatomaceous earth and rgd peptide
Than for 4g：5mL.
B, the nonwoven carrier both sides shower water of rgd peptide and nano diatomite, the nonwoven loaded are loaded in a steps
Cloth；
C, sewage disposal film is prepared：In the compound PVDF thin film in non-woven fabrics both sides, sewage disposal film is obtained.The complex method is adopted
With dry type composite algorithm, specially glue is coated on the composite surface of two pieces of PVDF thin films up and down to be composite, then passes through drying tunnel
Extra solvent is vapored away, then non-woven fabrics is placed among two pieces of PVDF thin films up and down, is pressed together with hot-pressing roller, i.e.,
?.
By the above method, can obtain being respectively upper PVDF thin film layer, nonwoven layer and lower PVDF thin film from top to bottom
Three layers of laminated film of layer.
Embodiment 1-6, comparative example 1 are all made of the non-woven fabrics of non-uniform thickness, PVDF thin film, the detection Examples 1 to 6 of sizing
And the absorption property of film that comparative example 1 is prepared.Adsorption experiment is the Hg (NO in 0.05mol/L3)2With
Cu (the NO of 0.03mol/L3)2It is carried out in solution.Experimentation is as follows：It weighs 1g films to be placed in conical flask, then pipette
Hg (the NO of 0.05mol/L3)2Solution 40mL impregnates it, then is collectively disposed in 25 DEG C of insulating box and carries out Static Adsorption
For 24 hours, then sample is filtered out with funnel from conical flask, collects filtrate, a certain amount of sodium acetate and acetic acid is added into filtrate
Buffer solution adjusts pH=3, then two drop (mass fraction 0.2%) xylenol orange indicator are added thereto, and (quality is then added
Score 20%) hexamethylenetetramine buffer solution to solution be aubergine, add the hexamethylenetetramine buffer solution into 3mL,
Then it is titrated to until solution aubergine takes off completely with the EDTA standard solution of 0.1mol/L again, thus can calculate Hg2+
Adsorbance.
It using same method and steps, weighs 1g films and is placed in conical flask, the Cu (NO of 0.03mol/L are added3)2It is molten
Liquid 40mL impregnates it, and pH=4 is adjusted with a certain amount of sodium acetate and hac buffer, under 25 DEG C of temperature conditions into
Row absorption for 24 hours, then uses the Na of 0.05mol/L again2S2O3Cu in filtrate after standard solution titration absorption2+Concentration, thus
Calculate Cu2+Adsorbance.
Testing result is shown in Table 1.
Table 1
| Number | Mercury ion adsorbance（mg/g） | Cupric ion adsorption（mg/g） |
| Embodiment 1 | 305 | 257 |
| Embodiment 2 | 307 | 259 |
| Embodiment 3 | 315 | 264 |
| Embodiment 4 | 313 | 261 |
| Embodiment 5 | 321 | 274 |
| Embodiment 6 | 338 | 285 |
| Comparative example 1 | 204 | 151 |
Claims (10)
1. a kind of preparation method of adsorbed film for sewage disposal, which is characterized in that include the following steps：
A, nonwoven carrier is prepared：Nano silicone diatomaceous earth is scattered in the solution of rgd peptide, then wherein by non-woven fabrics infiltration,
PH value is adjusted to 7.5~8.5, drying is taken out after 40~60min, the non-woven fabrics for obtaining load rgd peptide and nano diatomite carries
Body；
B, nanometer water gel is loaded：The high sugar of nonwoven carrier both sides spray of rgd peptide and nano diatomite is loaded in a steps
Type DMEM culture medium solutions cause self-assembling polypeptide, obtain the non-woven fabrics of load nanometer water gel；
C, sewage disposal film is prepared：The compound PVDF thin film in non-woven fabrics both sides of nanometer water gel is loaded in b step, obtains dirt
Membrane for water treatment.
2. the preparation method of the adsorbed film according to claim 1 for sewage disposal, it is characterised in that：In a steps, institute
The solution for stating rgd peptide is prepared as solvent using the dimethyl sulphoxide aqueous solution of 0.5wt% using rgd peptide as solute.
3. the preparation method of the adsorbed film according to claim 1 for sewage disposal, it is characterised in that：In a steps, institute
In the solution for stating rgd peptide, a concentration of 0.2~1wt% of rgd peptide.
4. the preparation method of the adsorbed film according to claim 1 for sewage disposal, it is characterised in that：In a steps, receive
The w/v of the solution of meter level diatomite and rgd peptide is 2~8g：5mL.
5. the preparation method of the adsorbed film according to claim 1 for sewage disposal, it is characterised in that：In a steps, institute
It is polypropylene non-woven fabric or polyester non-woven fabric to state non-woven fabrics.
6. according to the preparation method of the adsorbed film described in claim 1 for sewage disposal, it is characterised in that：In a steps, adjust
PH value is to 8.
7. the preparation method of the adsorbed film according to claim 1 for sewage disposal, it is characterised in that：In a steps,
Drying is taken out after 50min.
8. the preparation method of the adsorbed film according to claim 1 for sewage disposal, it is characterised in that：It is high in b step
Glucose content in sugar-type DMEM culture medium solutions is 4000~4500 mg/L.
9. the preparation method of the adsorbed film according to claim 1 for sewage disposal, it is characterised in that：In step c, adopt
With dry type composite algorithm in the compound PVDF thin film in non-woven fabrics both sides for loading nanometer water gel.
10. a kind of sewage disposal film, which is characterized in that using claim 1~9 any one of them for sewage disposal
The preparation method of adsorbed film is prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810521713.0A CN108745005A (en) | 2018-05-28 | 2018-05-28 | A kind of adsorbed film and preparation method thereof for sewage disposal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810521713.0A CN108745005A (en) | 2018-05-28 | 2018-05-28 | A kind of adsorbed film and preparation method thereof for sewage disposal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108745005A true CN108745005A (en) | 2018-11-06 |
Family
ID=64006655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810521713.0A Withdrawn CN108745005A (en) | 2018-05-28 | 2018-05-28 | A kind of adsorbed film and preparation method thereof for sewage disposal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108745005A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111282456A (en) * | 2020-03-13 | 2020-06-16 | 深圳大学 | Forward osmosis membrane for efficiently intercepting heavy metals and preparation method and application thereof |
-
2018
- 2018-05-28 CN CN201810521713.0A patent/CN108745005A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111282456A (en) * | 2020-03-13 | 2020-06-16 | 深圳大学 | Forward osmosis membrane for efficiently intercepting heavy metals and preparation method and application thereof |
| CN111282456B (en) * | 2020-03-13 | 2021-10-26 | 深圳大学 | Forward osmosis membrane for efficiently intercepting heavy metals and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Efome et al. | Effects of operating parameters and coexisting ions on the efficiency of heavy metal ions removal by nano-fibrous metal-organic framework membrane filtration process | |
| CN107051398B (en) | Method for preparing silk fibroin nanofiber-metal organic framework composite film | |
| CN106282153B (en) | Sandwich micro nanometer fiber composite membrane of loading microorganisms and its preparation method and application | |
| CN102527347B (en) | Magnetic chitosan/cationic surface active agent modified zeolite adsorbent and preparation method and application thereof | |
| Duan et al. | Chemically modified kapok fiber for fast adsorption of Pb 2+, Cd 2+, Cu 2+ from aqueous solution | |
| Song et al. | Removal of tetracycline residue from pharmaceutical wastewater by using 3D composite film | |
| CN100404101C (en) | Active carbon fabric composite filter element and production method thereof | |
| US20110006007A1 (en) | Composite polymeric filtration media | |
| CN108409981A (en) | A kind of preparation method of modified metal organic frame and composite nanometer filtering film | |
| CN109174023A (en) | A kind of nano-cellulose cross-linked graphene/chitosan aeroge and preparation method thereof, application | |
| CN107803119A (en) | A kind of preparation method of composite film and the method using residual tetracycline in its removal pharmacy waste water | |
| Hou et al. | Bipolar jet electrospinning bi-functional nanofibrous membrane for simultaneous and sequential filtration of Cd2+ and BPA from water: Competition and synergistic effect | |
| WO2022193674A1 (en) | Magadiite/polypyrrole adsorption material for treating rhodamine b wastewater and preparation method and application of magadiite/polypyrrole adsorption material | |
| CN108275752B (en) | Method for removing tetracycline in pharmaceutical wastewater by using two-dimensional lamellar structure membrane | |
| He et al. | Incorporating metal–organic frameworks into substrates for environmental applications | |
| CN104857939B (en) | Preparation method for removing the hybrid sorbents of heavy metal nickel ion in water removal | |
| Wang et al. | Continuous fixed bed adsorption of Cu (II) by halloysite nanotube–alginate hybrid beads: an experimental and modelling study | |
| CN109879349A (en) | A kind of preparation method of slightly acidic water processing special molding filter core | |
| CN110170309A (en) | A kind of two-dimensional metallic organic backbone composite film material, preparation method and application | |
| CN108905968A (en) | A kind of preparation method and water purification catridge of graphene oxide composite filter element material | |
| CN108211825B (en) | Metal organic framework composite membrane material and preparation and application thereof | |
| CN108191181B (en) | A kind of urban river sediment cleanser and its production method | |
| CN108745005A (en) | A kind of adsorbed film and preparation method thereof for sewage disposal | |
| KR20120111223A (en) | A complex comprising a porous alginic acid gel and an adsorbent for removing pollutants | |
| CN105854821B (en) | A kind of porous magnetic spheroidal material and preparation method thereof with sewage purification function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181106 |