CN106178686A - Composite Nano photocatalyst electrospinning fibre filter material and preparation method thereof - Google Patents

Composite Nano photocatalyst electrospinning fibre filter material and preparation method thereof Download PDF

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Publication number
CN106178686A
CN106178686A CN201610614663.1A CN201610614663A CN106178686A CN 106178686 A CN106178686 A CN 106178686A CN 201610614663 A CN201610614663 A CN 201610614663A CN 106178686 A CN106178686 A CN 106178686A
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China
Prior art keywords
filter material
composite nano
photocatalyst
fibre filter
electrospinning fibre
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CN201610614663.1A
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Inventor
钟喜生
张章堂
杨采瑜
刘芳
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Love Core Environmental Protection Technology (xiamen) Ltd By Share Ltd
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Love Core Environmental Protection Technology (xiamen) Ltd By Share Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/08Filter cloth, i.e. woven, knitted or interlaced material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8678Removing components of undefined structure
    • B01D53/8687Organic components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/06Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/26Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
    • B01J31/38Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
    • B01J35/39
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/54Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated nitriles
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282Addition polymers
    • D04H1/43Acrylonitrile series
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326Condensation or reaction polymers
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326Condensation or reaction polymers
    • D04H1/435Polyesters
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4374Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/728Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning

Abstract

Composite Nano photocatalyst electrospinning fibre filter material and preparation method thereof, relates to fibrous filter.Described composite Nano photocatalyst electrospinning fibre filter material is provided with carrier, one layer of photocatalyst fiber of coating on carrier.Preparation method: 1) polyacrylonitrile is mixed with dimethyl acetylamide, heating, prepare macromolecular solution;2) by step 1) macromolecular solution for preparing mix with titania solution, heats, prepared light catalyst composition solution;3) by step 2) prepare light catalyst composition solution insert in the syringe being located at automatic sampling apparatus, through electrostatic spinning apparatus spray titaniferous photocatalyst fiber;4) poly terephthalic acid fiber is placed on catcher, by direct for light catalyst composition solution electrospinning on poly terephthalic acid fiber, then overlap last layer poly terephthalic acid fiber, form the structure of sandwich interlayer, hot repressing, obtains composite Nano photocatalyst electrospinning fibre filter material.Contribute to increasing particulate matter filter effect and promoting the disposal ability to volatile organic matter.

Description

Composite Nano photocatalyst electrospinning fibre filter material and preparation method thereof
Technical field
The present invention relates to fibrous filter, especially relate to a kind of can process the compound of volatile organic matter and particulate matter simultaneously Nano photo-catalytic electrospinning fibre filter material and preparation method thereof.
Background technology
The research of popular disease has been pointed out air pollution and breathing, cardiovascular disease and the positive of pulmonary carcinoma chronic diseases Closing, nanoparticles can be directly entered alveolar and by macrophage phagocytic, can forever rest in alveolar, not be the most right Respiratory system, and all can have an impact to cardiovascular and to nervous system etc..If granule enters blood by bronchus and alveolar, Harmful gas therein, heavy metal etc. are dissolved in blood, and the injury to health is bigger.And volatile organic matter (VOCs) For health hazard effect aspect, be easily caused slight nervus centralis impaired, high concentration steam may cause headache, feel sick, dizzy, Drowsiness, exercise not harmony and spirit are obscured and stimulate eyes etc..
The treatment technology of VOCs has absorption process, active carbon adsorption, condensation method, hot incineration method, biological treatment and light to urge Changing oxidizing process etc., there are some problems in these methods, such as low removal efficiency and the shortcoming of high cost, wherein photocatalytic method has joint Can, nontoxic, prepare the advantages such as easy, the cheap and device space is little and get most of the attention.And the isolation technics of common particulate matter Such as electrostatic precipitation method, cyclone method, wet washing and Filtration etc., Filtration have cheap, the device space is little Advantage, is to remove one of method of being most frequently with of particulate in air, and application is extensive, including respiratory protection, purification of waste water And toilet etc..Due to fabric filter simple in construction, low cost, for most-often used air purification method.General fiber mistake Filter uses fibrous filter to carry out particulate matter process, and fibrous filter can be divided into traditional fibrous filter and nanofiber.Tradition is fine Fiber size is excessive with pore size diameter, and bulk density for dimension filter material (such as glass fibre, meltblown fibers and spun-bonded fibre) It is difficult to control to.And nanofiber has the features such as high surface area, small-bore and high porosity, it is adaptable to nanoparticles filters. The method of nanofiber manufacture has templated synthesis, separated separation, meltblown and electrostatic spinning etc., uses electrostatic spinning skill Art can prepare time micron fiber to nano-scale, and simple to operate, easily carry out various material fibers making, this technology is the most successful Apply in each field, such as the fields such as catalysis, tissue engineering bracket, filtration, desalinization, environmental project and biomedicine, electrospinning Fiber is applicable to the reactor of any shape, ease of assembly, replacing, and has research to point out the developed nm of electrostatic spinning technique Fiber has high porosity and high surface attachment, easily carries out time micron by interception and adsorption and processes to nanoparticles.
Summary of the invention
Present invention aim at providing a kind of composite Nano photocatalyst electrospinning fibre filter material and preparation method thereof.
Described composite Nano photocatalyst electrospinning fibre filter material is provided with carrier, one layer of photocatalyst fiber of coating on carrier.
Described carrier can use a micron poly terephthalic acid fiber.
Described photocatalyst fiber refers to by polyacrylonitrile high with the mixing of dimethylacetamide amine solvent with titanium dioxide Molecular solution, then be prepared from by electrostatic spinning apparatus.
The preparation method of described composite Nano photocatalyst electrospinning fibre filter material, comprises the following steps:
1) polyacrylonitrile is mixed with dimethyl acetylamide, heating, prepare macromolecular solution;
2) by step 1) macromolecular solution for preparing mix with titania solution, heats, and prepared light catalyst composition is molten Liquid;
3) by step 2) prepare light catalyst composition solution insert in the syringe being located at automatic sampling apparatus, through electrostatic Device for spinning ejection titaniferous photocatalyst fiber;
4) poly terephthalic acid fiber is placed on catcher, by direct for light catalyst composition solution electrospinning poly-to benzene two On formic acid fiber, then overlap last layer poly terephthalic acid fiber, form the structure of sandwich interlayer, hot repressing, obtain compound Nano photo-catalytic electrospinning fibre filter material.
In step 1) in, the temperature of described heating can be 70~80 DEG C, and the time of heating can be 6~7h;The high score prepared The mass percentage concentration of sub-solution can be 6%.
In step 2) in, the temperature of described heating can be 40~50 DEG C, and the time of heating can be 1~2h.
In step 3) in, the sample introduction speed of described automatic sampling apparatus can be 0.8~1.0mL/h, voltage can be 13~ 16kV;The rotation accepter rotating speed of described electrostatic spinning apparatus can be 100~110r/min, and collecting distance can be 10~15cm.
In step 4) in, the temperature of described hot pressing can be 80 DEG C.
The present invention provides a kind of photocatalyst electrospinning fibre filter material that can simultaneously process volatile organic matter and particulate matter, adds Matrix PET, titanium dioxide can increase surface area and the porosity of photocatalyst composite material, reaches to increase composite fibre filter material With the contact area of pollutant and promote the purpose to VOCs disposal ability, and reduce particulate in air simultaneously.
Business titanium dioxide and macromolecule polypropylene nitrile are made titanium dioxide polyacrylonitrile fibre by the present invention (Titanium dioxide polyacrylonitrile fibers, TPF), and it is carried on poly terephthalic acid fiber On (Polyethylene terephthalate, PET), form composite.Added titanium dioxide can increase fiber surface Charging property, as the catalyst of light-catalyzed reaction, the existence of matrix PET in addition, make this filter material have and lower penetrate effect Rate, improves the filter quality of filter material, reaches to process the purpose of volatile organic matter in air and particulate matter simultaneously.
The present invention utilizes electrostatic spinning technique to be combined with macromolecular material by titaniferous photocatalyst and makes photocatalyst fiber, and will It is placed on poly terephthalic acid fiber carrier, thus improves penetrance and the crushing of conventional filter, and titanium dioxide can simultaneously The specific surface area of reinforcing fiber film, volatile organic matter is aoxidized by the catalyst also serving as light-catalyzed reaction, and formation can process simultaneously Volatile organic matter and the photocatalyst electrospinning fibre filter material of particulate matter.The present invention is by carrying out the composite fibre filter material developed The assessment of specificity analysis, photocatalysis efficiency and filter quality, it is known that adding proportion is the composite photo catalyst fibrous filter of 2%, right Volatile organic matter degradation efficiency, can be less than 1.9% to the filtration penetrance of particulate matter up to more than 90%.The experiment proved that, The composite fibre filter material adding titanium dioxide and poly terephthalic acid fiber carrier contributes to increasing particulate matter filter effect and carrying Rise the disposal ability to volatile organic matter.
Accompanying drawing explanation
Fig. 1 is the 3D schematic diagram of photocatalyst electrospinning fibre filter material of the present invention;
Fig. 2 is Scanning Electron microscope and the element spectral distribution of titanium dioxide polyacrylonitrile photocatalyst fiber of the present invention Figure;
Fig. 3 is the Scanning Electron microscope figure of photocatalyst electrospinning fibre filter material of the present invention;
Fig. 4 is the X-ray diffraction scanning figure of polyacrylonitrile fibre of the present invention, titanium dioxide and electrospinning fibre Compound filtering material;
Fig. 5 is individual processing acetone of the present invention and the degradation efficiency figure simultaneously processing acetone and particulate matter;
Fig. 6 be individual processing acetone of the present invention and process acetone and particulate matter simultaneously penetrate efficiency chart.
Detailed description of the invention
Following example will the present invention is further illustrated in conjunction with accompanying drawing.
Described composite Nano photocatalyst electrospinning fibre filter material is provided with carrier, one layer of photocatalyst fiber of coating on carrier.
Described carrier can use a micron poly terephthalic acid fiber.
Described photocatalyst fiber refers to by polyacrylonitrile high with the mixing of dimethylacetamide amine solvent with titanium dioxide Molecular solution, then be prepared from by electrostatic spinning apparatus.
The preparation method of described composite Nano photocatalyst electrospinning fibre filter material, comprises the following steps:
1) polyacrylonitrile is mixed with dimethyl acetylamide, heating, prepare macromolecular solution;The temperature of described heating can be 70~80 DEG C, the time of heating can be 6~7h;The mass percentage concentration of the macromolecular solution prepared can be 6%.Preferably heat Temperature is 80 DEG C, and the time of heating is 6h.
2) by step 1) macromolecular solution for preparing mix with titania solution, heats, and prepared light catalyst composition is molten Liquid;The temperature of described heating can be 40~50 DEG C, and the time of heating can be 1~2h.The temperature of the most described heating is 40 DEG C, adds The time of heat is 2h.
3) by step 2) prepare light catalyst composition solution insert in the syringe being located at automatic sampling apparatus, through electrostatic Device for spinning ejection titaniferous photocatalyst fiber;The sample introduction speed of described automatic sampling apparatus can be 0.8~1.0mL/h, and voltage can It is 13~16kV;The rotation accepter rotating speed of described electrostatic spinning apparatus can be 100~110r/min, collect distance can be 10~ 15cm.Preferably sample introduction speed 1.0mL/h, voltage 15kV, rotate accepter rotating speed 100r/min, collect distance 15cm.
4) poly terephthalic acid fiber is placed on catcher, by direct for light catalyst composition solution electrospinning poly-to benzene two On formic acid fiber, then overlap last layer poly terephthalic acid fiber, form the structure of sandwich interlayer, hot repressing, obtain compound Nano photo-catalytic electrospinning fibre filter material.The temperature of described hot pressing can be 80 DEG C.
The present invention uses acetone emission-control equipment, this device be broadly divided into acetone generator, photo catalysis reactor with And gas analyzing apparatus etc. three is most, first, first produces mixed gas with acetone steel cylinder with air steel cylinder, and pass through effusion meter Adjust acetone concentration, acetone concentration is adjusted to experiment desired concn value, control to be passed through photo catalysis reactor with effusion meter equally Flow, and in a handheld VOCs photoionization detector (Photoionization detector, PID) detection photocatalysis anti- Acetone concentration before and after should, to inquire into the clearance of VOCs.Wherein, photo catalysis reactor a size of 20cm × 25cm × 15cm.
Fig. 1 shows, electrospinning fibre Compound filtering material 3D schematic diagram of the present invention.Overall electrospinning composite fibre filter material divides three layers, the end Portion is a strata p-phthalic acid fiber, and centre is titanium dioxide polyacrylonitrile photocatalyst fiber, and topmost one layer is for gathering benzene Dioctyl phthalate fiber, forms interlayer sandwich structure.
Fig. 2 and 3 display, utilizes sweep electron microscope (SEM) and element spectral distribution instrument (EDS) to observe material surface Structure and elemental distribution.Can be observed in figure to utilize electrostatic spinning to be successfully made filamentary fibers, its fibre diameter about exists Between 200~250nm, titanium dioxide is evenly distributed in fiber surface, and fiber can be made to have more contact area effectively to process VOCs, in order to reaching more preferable treatment effect.PET smooth surface is smooth, and nano level TPF fiber has been attached to micron order PET on, by PET as support, support TPF fiber, form the structure mutually supported.
Fig. 4 shows, utilize X-ray diffraction (XRD) Analysis and Identification containing titanium dioxide, TPF and polyacrylonitrile crystal formation knot Structure, carries out crystallite dimension analysis according to its diffraction peak.Via the titanium dioxide anatase that MDI Jade system card number is 21-1727 Crystalline phase comparison can learn have bright in (101), (004), (200), (105), (211), (204), (116), (220) with (215) The characteristic peak of aobvious titanium dioxide, is all anatase, it is possible to find preparing photo-catalytic nano fiber via electrostatic spinning technique can't Cause titania structure to destroy, still possess the characteristic of titanium dioxide.
Fig. 5 shows, processes the photocatalysis efficiency of acetone and particulate matter and individual processing acetone more simultaneously, after processing a h, It is passed through photocatalysis efficiency and the photocatalysis efficiency limited difference with individual processing acetone of particulate matter;But after 8h, locate simultaneously The photocatalysis efficiency of reason acetone and particulate matter declines more obvious, is because particulate matter forms dirt cake at surface of filter medium, blocks purple Outer light contacts with catalyst, causes light-catalyzed reaction to be less susceptible to occur, and causes efficiency to decline.Suggestion ought process particulate matter simultaneously During with acetone, it should be noted that light source and the setting of particulate matter grain direction, light source is placed in the back side of filter material, reduces light source and be blocked Possibility.
Fig. 6 shows, processes the impact on processing two kinds of pollutant effects of particulate matter and acetone simultaneously, uses basic weight 1g m-2 2%TPF (1500mL min under time of staying 5min-1), face velocity is 0.5cm s-1(flow: 1500mL min-1;Filter material Area: 50cm2), in light-catalyzed reaction system, it is passed through particulate matter produced by the acetone of 400ppm and particulate matter generation system, PID is utilized to measure the concentration importing and exporting particulate matter with acetone.Process acetone and the strainability test result of particulate matter simultaneously, aobvious Show when processing simultaneously, filtration of particulate matters is not significantly affected.

Claims (9)

1. composite Nano photocatalyst electrospinning fibre filter material, it is characterised in that be provided with carrier, one layer of photocatalyst fibre of coating on carrier Dimension.
2. as claimed in claim 1 composite Nano photocatalyst electrospinning fibre filter material, it is characterised in that it is right that described carrier is that micron gathers Cellulose phthalate.
3. composite Nano photocatalyst electrospinning fibre filter material as claimed in claim 1, it is characterised in that described photocatalyst fiber is by gathering Acrylonitrile and titanium dioxide are with the mixing macromolecular solution of dimethylacetamide amine solvent, then are prepared by electrostatic spinning apparatus Form.
4. the preparation method of composite Nano photocatalyst electrospinning fibre filter material as claimed in claim 1, it is characterised in that include following Step:
1) polyacrylonitrile is mixed with dimethyl acetylamide, heating, prepare macromolecular solution;
2) by step 1) macromolecular solution for preparing mix with titania solution, heats, prepared light catalyst composition solution;
3) by step 2) prepare light catalyst composition solution insert in the syringe being located at automatic sampling apparatus, through electrostatic spinning Device ejection titaniferous photocatalyst fiber;
4) poly terephthalic acid fiber is placed on catcher, by direct for light catalyst composition solution electrospinning at poly terephthalic acid On fiber, then overlap last layer poly terephthalic acid fiber, form the structure of sandwich interlayer, hot repressing, obtain composite Nano Photocatalyst electrospinning fibre filter material.
5. the preparation method of composite Nano photocatalyst electrospinning fibre filter material as claimed in claim 4, it is characterised in that in step 1) In, the temperature of described heating is 70~80 DEG C, and the time of heating is 6~7h.
6. the preparation method of composite Nano photocatalyst electrospinning fibre filter material as claimed in claim 4, it is characterised in that in step 2) In, the temperature of described heating is 40~50 DEG C, and the time of heating is 1~2h.
7. the preparation method of composite Nano photocatalyst electrospinning fibre filter material as claimed in claim 4, it is characterised in that in step 3) In, the sample introduction speed of described automatic sampling apparatus is 0.8~1.0mL/h, and voltage is 13~16kV.
8. the preparation method of composite Nano photocatalyst electrospinning fibre filter material as claimed in claim 4, it is characterised in that in step 3) In, the rotation accepter rotating speed of described electrostatic spinning apparatus is 100~110r/min, and collecting distance is 10~15cm.
9. the preparation method of composite Nano photocatalyst electrospinning fibre filter material as claimed in claim 4, it is characterised in that in step 4) In, the temperature of described hot pressing is 80 DEG C.
CN201610614663.1A 2016-07-29 2016-07-29 Composite Nano photocatalyst electrospinning fibre filter material and preparation method thereof Pending CN106178686A (en)

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CN107160720A (en) * 2017-05-23 2017-09-15 上海科涤环保科技有限公司 A kind of high efficiency composition protects the preparation method of filter material
CN107604536A (en) * 2017-09-12 2018-01-19 曾林涛 A kind of preparation method of fluffy resilient three-dimensional micro nanometer fiber material, device and the fibrous material prepared by this method and its application
CN108114531A (en) * 2017-12-12 2018-06-05 东南大学 A kind of preparation method of porous nano optical fiber heterojunction structure photocatalysis filter screen
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CN108265345A (en) * 2016-12-30 2018-07-10 香港理工大学 A kind of synthetic fibers with air-cleaning function and preparation method thereof
CN107160720A (en) * 2017-05-23 2017-09-15 上海科涤环保科技有限公司 A kind of high efficiency composition protects the preparation method of filter material
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CN108114531A (en) * 2017-12-12 2018-06-05 东南大学 A kind of preparation method of porous nano optical fiber heterojunction structure photocatalysis filter screen
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CN108114531B (en) * 2017-12-12 2020-05-19 东南大学 Preparation method of porous nano optical fiber heterostructure photocatalytic filter screen
CN108251970A (en) * 2018-01-23 2018-07-06 苏州大学 TiO2The preparation method of/PAN nanofiber membrane
CN109023727A (en) * 2018-08-30 2018-12-18 华南理工大学 A kind of preparation method for the micro/nano fibrous membrane material that can actively capture PM2.5

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