CN107175088A - A kind of preparation method of the quartzy blanket of photocatalyst catalysis - Google Patents
A kind of preparation method of the quartzy blanket of photocatalyst catalysis Download PDFInfo
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- CN107175088A CN107175088A CN201710619991.5A CN201710619991A CN107175088A CN 107175088 A CN107175088 A CN 107175088A CN 201710619991 A CN201710619991 A CN 201710619991A CN 107175088 A CN107175088 A CN 107175088A
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Abstract
The present invention relates to a kind of preparation method of the quartzy blanket of photocatalyst catalysis, belong to quartz fibre production technical field.The present invention is that, into cotton, will be mixed with nano-TiO by quartz glass bar oxyhydrogen flame meltblown2Colloidal sol and acidity Al2O3The glue even application of colloidal sol is on quartz fibre cotton, and the quartzy blanket finished product of photocatalyst catalysis is made in drying after cutting.The quartzy blanket of photocatalyst catalysis prepared in this way, technique is simple, cost is low, with high temperature resistant, it is corrosion-resistant, acidproof the characteristics of, high-temperature catalytic base material can be used as.It can act as in toxic and harmful gas filtering, degradable material under high temperature, sour environment.
Description
Technical field
The present invention relates to a kind of preparation method of the quartzy blanket of photocatalyst catalysis, belong to quartz fibre production technical field.
Background technology
Photocatalyst is one kind with nanoscale TiO2For the material with photo-catalysis function of representative.Fujishima in 1972
Illumination TiO is found with Honda2Monocrystalline motor energy decomposition water.TiO2Energy gap is 3.2eV, when wavelength is less than 387.5nm light
Irradiate TiO2During particle, the electronics in valence band is excited, and crosses forbidden band and enters conduction band, while producing corresponding hole in valence band.
Photoelectron and hole are diffused into TiO respectively2Surface, the reaction objects different from surface are reacted.Photoelectron has reproducibility,
Hole has oxidisability.
Hole and TiO2The H of adsorption2O or HO—Reaction forms the activity hydroxy with strong oxidizing property（·OH）；Electronics
Then with TiO2The oxygen molecule reaction of adsorption, produces super oxygen molecule（·O2 —）, super oxygen molecule can further react with water, raw
Produce hydroperoxyl（·OOH）And hydrogen peroxide（H2O2）.Super oxygen molecule（·O2 —）It is a kind of strong reductant, can makes almost all of to have
Machine thing is decomposed, and activity hydroxy（·OH）, hydroperoxyl（·OOH）And hydrogen peroxide（H2O2）All can be with large biological molecule（Lipid,
Protein, enzyme and accounting macromolecular）Effect.Finally, destroy biological cell structure by a series of redox reactions, will have
Thoroughly redox is water and carbon dioxide to machine thing, plays a part of sterilization, deodorization, degradation of organic substances.
Quartz fibre cotton be it is a kind of using filament diameter≤15 μm made from quartz bar, it is puffy, unbodied continuous
Fiber.The quartz fibre blanket that quartz fibre cotton is bonded by organic glue have quartz fibre high temperature resistant, it is corrosion-resistant,
Resistance to sour advantages all in addition to hydrofluoric acid and hot phosphoric acid, can be used as the filtering material and various hot environments of high-temperature acidic gas
Thermo insulating filling material.But, have that preparation technology is complicated because existing photocatalyst is catalyzed quartzy blanket, be not easy to implement and
The high deficiency of cost, therefore, it is necessary to make improvements.
The content of the invention
It is an object of the invention to：There is provided a kind of technique simple, cost is low, it is easy to implement, and the quartzy blanket prepared can
To be used as high-temperature catalytic base material；It can be used in toxic and harmful gas filtering under high temperature, sour environment, the photocatalyst of degraded base material to urge
The preparation method of fossil English blanket.
The technical scheme is that：
A kind of preparation method of the quartzy blanket of photocatalyst catalysis, it is characterised in that：It comprises the following steps：
1）, quartz glass bar is placed in rod feeder, and control delivery speed in 20~60mm/min；Existed using oxyhydrogen flame
Fused silica glass rod is drawn into quartz glass fibre silk at a temperature of 1800 DEG C~1900 DEG C；
2）, quartz glass bar be drawn into during silk, by 200~280L/min hydrogen-oxygen air flow blowing into quartz glass fibre
Silk, makes it fall within the silica wool for connecing and forming bulk on cotton steel wire；
3）, be up to the silica wool of certain grammes per square metre and taken off on cotton steel wire from connecing, and stretch, pave quartzy cottonseed cake is made；
4）And then photocatalyst is catalyzed quartzy blanket glue even application on the quartzy cottonseed cake after stretching, paving and layer stackup
Plus, until reaching the setting number of plies；
5）, the quartzy cottonseed cake that is up to the setting number of plies roll flat, then will be fixed so that mutually chimeric sizing between each layer quartz cottonseed cake
The quartzy cottonseed cake of type is placed in drying baker dries 1.5~3 hours under the conditions of 100 DEG C；
6）, after the completion of drying, by being sized being cut, obtain, the quartzy blanket finished product of photocatalyst catalysis.
The described quartzy blanket glue of photocatalyst catalysis, is made up of the raw material of following weight parts；
The TiO of polyvinyl alcohol 0.2~42Colloidal sol 2~20
Al2O3The PH of colloidal sol 1~25 debugs agent 1~2
Surplus is deionized water
1st, the deionized water of 1/3 amount is heated to 95 DEG C~98 DEG C first, then added polyvinyl alcohol into deionized water molten
Solution dilution, is prepared into poly-vinyl alcohol solution, and place cooling；
2nd, TiO is diluted with the deionized water at normal temperature of 1/3 amount2After colloidal sol, it is poured into poly-vinyl alcohol solution, and continues 20 points of stirring
Clock；
3rd, after stirring 20 minutes, the deionized water of surplus is added, is persistently stirred 20 minutes；During this, PH debugging agent is added,
And pH value is controlled between 4~7；, the quartzy blanket glue of photocatalyst catalysis.
Be catalyzed in photocatalyst in quartzy blanket glue, polyvinyl alcohol be rise in glue bond, the main component of styling,
Main function is to be bonded together multilayer silica wool, and is shaped into the quartzy blanket of one piece of entirety；
TiO2Colloidal sol main component is nano level TiO2Particle, has been the main component of photocatalyst catalytic action.TiO2Micelle is born
It is loaded in after quartz fiber surface, the catalytic action for promoting organic matter to decompose is acted under action of ultraviolet light, so that quartzy blanket tool
There is the effect that photocatalyst is catalyzed.
Al2O3Colloidal sol is acidity Al2O3Colloidal sol；It is quartz fibre and TiO2The important medium intercoupled between micelle；It is main
There are two effects：1st, by nano-TiO2Surface forms free undefined structure aluminium compound coating, with nano-TiO2
Stability in water, makes TiO2Micelle is highly uniform to be scattered in glue.2nd, simultaneously, Al2O3Micelle surface has than larger
Specific surface area, abundant dangling bond and Lacking oxygen, can adsorb substantial amounts of TiO2Micelle is carried on quartz fiber surface, improves quartz
The absorption property and photocatalysis performance of blanket.
PH debugging agent is one kind in glacial acetic acid, formic acid；Main function is the raising by the control of glue pH value between 4~7
TiO2Stability of the micelle in glue.
The advantage of the invention is that：
The present invention is that, into cotton, will be mixed with nano-TiO by quartz glass bar oxyhydrogen flame meltblown2Colloidal sol and acidity Al2O3Colloidal sol
Glue even application on quartz fibre cotton, the quartzy blanket finished product of photocatalyst catalysis is made in drying after cutting.In this way
The quartzy blanket of photocatalyst catalysis of preparation, technique is simple, cost is low, with high temperature resistant, it is corrosion-resistant, acidproof the characteristics of, Ke Yizuo
For high-temperature catalytic base material.It can act as in toxic and harmful gas filtering, degradable material under high temperature, sour environment.
Brief description of the drawings
Fig. 1 is the spectral scan curve map before the ultraviolet light of the embodiment of the present invention 1；
Fig. 2 is the spectral scan curve map after the ultraviolet light of the embodiment of the present invention 1；
Fig. 3 is the spectral scan curve map before the ultraviolet light of the embodiment of the present invention 2；
Fig. 4 is the spectral scan curve map after the ultraviolet light of the embodiment of the present invention 2；
Fig. 5 is the spectral scan curve map before the ultraviolet light of the embodiment of the present invention 3；
Fig. 6 is the spectral scan curve map after the ultraviolet light of the embodiment of the present invention 3；
Fig. 7 is the spectral scan curve map before the ultraviolet light of the embodiment of the present invention 4；
Fig. 8 is the spectral scan curve map after the ultraviolet light of the embodiment of the present invention 4.
Embodiment
Embodiment 1：
The deionized water of 1/3 amount is heated to 95 DEG C~98 DEG C first, then by the polyvinyl alcohol of 0.2 parts by weight add to go from
Dissolved dilution in sub- water, is prepared into poly-vinyl alcohol solution, and place cooling.2 parts by weight are diluted with the deionized water at normal temperature of 1/3 amount
TiO2After colloidal sol, it is poured into poly-vinyl alcohol solution, and continues stirring 20 minutes；Then the deionized water of surplus is added,
The glacial acetic acid of 1 parts by weight is added simultaneously, to control pH value between 4~7；Persistently stir 20 minutes；, photocatalyst catalysis quartz
Blanket glue.
By SiO2The quartz glass bar of content >=99.90% is placed in rod feeder, and control delivery speed 20~
60mm/min；Using oxyhydrogen flame, fused silica glass rod is drawn into quartz glass fibre silk at a temperature of 1800 DEG C, passes through
200L/min hydrogen-oxygen air flow blowing makes it fall within the silica wool for connecing and forming bulk on cotton steel wire into quartz glass fibre silk；
Then it is up to the silica wool of certain grammes per square metre and is taken off on cotton steel wire from connecing, and stretch, pave quartzy cottonseed cake is made, by photocatalyst
Blanket glue even application is on the quartzy cottonseed cake after stretching, paving and is layering for catalysis quartz, until reaching the setting number of plies
Afterwards；The quartzy cottonseed cake for being up to the setting number of plies again rolls flat, so that mutually chimeric between each layer quartz cottonseed cake bond sizing, then will
The quartzy cottonseed cake of sizing is placed in drying baker dries 1.5 hours under the conditions of 100 DEG C；After the completion of drying, by be sized carry out
Cut, obtain, the quartzy blanket finished product of photocatalyst catalysis.
To show that photocatalyst prepared by embodiment 1 is catalyzed quartzy blanket end properties, made carbon copies using acetone extract blue-black
Paper, is made CVL（Crystal violet lactones）Dye solution.1g photocatalysts are catalyzed into quartzy blanket to be placed in CVL dye solutions, used
30W ultra violet lamps 120h.If effectively, CVL's photocatalyst catalytic effect in dye solution will be degraded, solution colour will become
It is limpid or even transparent.With solution transmitance after A-83 TU-1901 dual-beams ultraviolet-uisible spectrophotometer test pre-irradiation, lead to
The change of solution transmitance after test pre-irradiation is crossed, implementation result is verified（Referring to accompanying drawing 1-2）.It is purple by accompanying drawing 1-2
Before outer light irradiation, it is seen that optical band transmitance peak value is 1.7%, infrared band transmitance peak value is 15.22%.Ultraviolet light
Afterwards, it is seen that optical band transmitance peak value is 1.82%, infrared band transmitance peak value is 16.65%.
Embodiment 2：
The deionized water of 1/3 amount is heated to 95 DEG C~98 DEG C first, then by the polyvinyl alcohol of 0.5 parts by weight add to go from
Dissolved dilution in sub- water, is prepared into poly-vinyl alcohol solution, and place cooling.5 parts by weight are diluted with the deionized water at normal temperature of 1/3 amount
TiO2After colloidal sol, it is poured into poly-vinyl alcohol solution, and continues stirring 20 minutes；Then the deionized water of surplus is added,
The glacial acetic acid of 1.5 parts by weight is added simultaneously, to control pH value between 4~7；Persistently stir 20 minutes；, photocatalyst catalysis stone
English blanket glue.
By SiO2The quartz glass bar of content >=99.90% is placed in rod feeder, and control delivery speed 20~
60mm/min；Using oxyhydrogen flame, fused silica glass rod is drawn into quartz glass fibre silk at a temperature of 1900 DEG C, passes through
210L/min hydrogen-oxygen air flow blowing makes it fall within the silica wool for connecing and forming bulk on cotton steel wire into quartz glass fibre silk；
Then it is up to the silica wool of certain grammes per square metre and is taken off on cotton steel wire from connecing, and stretch, pave quartzy cottonseed cake is made, by photocatalyst
Blanket glue even application is on the quartzy cottonseed cake after stretching, paving and is layering for catalysis quartz, until reaching the setting number of plies
Afterwards；The quartzy cottonseed cake for being up to the setting number of plies again rolls flat, so that mutually chimeric between each layer quartz cottonseed cake bond sizing, then will
The quartzy cottonseed cake of sizing is placed in drying baker dries 2 hours under the conditions of 100 DEG C；After the completion of drying, by being sized being cut out
Cut, obtain, the quartzy blanket finished product of photocatalyst catalysis.
To show that photocatalyst prepared by embodiment 2 is catalyzed quartzy blanket end properties, made carbon copies using acetone extract blue-black
Paper, is made CVL（Crystal violet lactones）Dye solution.1g photocatalysts are catalyzed into quartzy blanket to be placed in CVL dye solutions, used
30W ultra violet lamps 120h.If effectively, CVL's photocatalyst catalytic effect in dye solution will be degraded, solution colour will become
It is limpid or even transparent.With solution transmitance after A-83 TU-1901 dual-beams ultraviolet-uisible spectrophotometer test pre-irradiation, lead to
The change of solution transmitance after test pre-irradiation is crossed, implementation result is verified（Referring to accompanying drawing 3-4）.It is purple by accompanying drawing 3-4
Before outer light irradiation, it is seen that optical band transmitance peak value 0.64%, infrared band transmitance peak value 8.11%.It is purple after ultraviolet light
After outer light irradiation, it is seen that optical band transmitance >=60%, infrared band transmitance peak >=80%.
Embodiment 3：
The deionized water of 1/3 amount is heated to 95 DEG C~98 DEG C first, then added the polyvinyl alcohol of 1 parts by weight to deionization
Dissolved dilution in water, is prepared into poly-vinyl alcohol solution, and place cooling.10 parts by weight are diluted with the deionized water at normal temperature of 1/3 amount
TiO2After colloidal sol, it is poured into poly-vinyl alcohol solution, and continues stirring 20 minutes；Then the deionized water of surplus is added,
The formic acid of 2 parts by weight is added simultaneously, to control pH value between 4~7；Persistently stir 20 minutes；, photocatalyst catalysis silica wool
Felt glue.
By SiO2The quartz glass bar of content >=99.90% is placed in rod feeder, and control delivery speed 20~
60mm/min；Using oxyhydrogen flame, fused silica glass rod is drawn into quartz glass fibre silk at a temperature of 1850 DEG C, passes through
250L/min hydrogen-oxygen air flow blowing makes it fall within the silica wool for connecing and forming bulk on cotton steel wire into quartz glass fibre silk；
Then it is up to the silica wool of certain grammes per square metre and is taken off on cotton steel wire from connecing, and stretch, pave quartzy cottonseed cake is made, by photocatalyst
Blanket glue even application is on the quartzy cottonseed cake after stretching, paving and is layering for catalysis quartz, until reaching the setting number of plies
Afterwards；The quartzy cottonseed cake for being up to the setting number of plies again rolls flat, so that mutually chimeric between each layer quartz cottonseed cake bond sizing, then will
The quartzy cottonseed cake of sizing is placed in drying baker dries 2.5 hours under the conditions of 100 DEG C；After the completion of drying, by be sized carry out
Cut, obtain, the quartzy blanket finished product of photocatalyst catalysis.
To show that photocatalyst prepared by embodiment 3 is catalyzed quartzy blanket end properties, made carbon copies using acetone extract blue-black
Paper, is made CVL（Crystal violet lactones）Dye solution.1g photocatalysts are catalyzed into quartzy blanket to be placed in CVL dye solutions, used
30W ultra violet lamps 120h.If effectively, CVL's photocatalyst catalytic effect in dye solution will be degraded, solution colour will become
It is limpid or even transparent.With solution transmitance after A-83 TU-1901 dual-beams ultraviolet-uisible spectrophotometer test pre-irradiation, lead to
The change of solution transmitance after test pre-irradiation is crossed, implementation result is verified（Referring to accompanying drawing 5-6）.It is purple by accompanying drawing 5-6
Before outer light irradiation, it is seen that optical band transmitance≤5%, infrared band transmitance peak value 15.2%.After ultraviolet light, it is seen that light wave
Section transmitance >=80%, infrared band transmitance is 90% or so.Glue solution is in clarification shape.
Embodiment 4：
The deionized water of 1/3 amount is heated to 95 DEG C~98 DEG C first, then added the polyvinyl alcohol of 4 parts by weight to deionization
Dissolved dilution in water, is prepared into poly-vinyl alcohol solution, and place cooling.20 parts by weight are diluted with the deionized water at normal temperature of 1/3 amount
TiO2After colloidal sol, it is poured into poly-vinyl alcohol solution, and continues stirring 20 minutes；Then the deionized water of surplus is added,
The formic acid of 2 parts by weight is added simultaneously, to control pH value between 4~7；Persistently stir 20 minutes；, photocatalyst catalysis silica wool
Felt glue.
By SiO2The quartz glass bar of content >=99.90% is placed in rod feeder, and control delivery speed 20~
60mm/min；Using oxyhydrogen flame, fused silica glass rod is drawn into quartz glass fibre silk at a temperature of 1850 DEG C, passes through
280L/min hydrogen-oxygen air flow blowing makes it fall within the silica wool for connecing and forming bulk on cotton steel wire into quartz glass fibre silk；
Then it is up to the silica wool of certain grammes per square metre and is taken off on cotton steel wire from connecing, and stretch, pave quartzy cottonseed cake is made, by photocatalyst
Blanket glue even application is on the quartzy cottonseed cake after stretching, paving and is layering for catalysis quartz, until reaching the setting number of plies
Afterwards；The quartzy cottonseed cake for being up to the setting number of plies again rolls flat, so that mutually chimeric between each layer quartz cottonseed cake bond sizing, then will
The quartzy cottonseed cake of sizing is placed in drying baker dries 3 hours under the conditions of 100 DEG C；After the completion of drying, by being sized being cut out
Cut, obtain, the quartzy blanket finished product of photocatalyst catalysis.
To show that photocatalyst prepared by embodiment 4 is catalyzed quartzy blanket end properties, made carbon copies using acetone extract blue-black
Paper, is made CVL（Crystal violet lactones）Dye solution.1g photocatalysts are catalyzed into quartzy blanket to be placed in CVL dye solutions, used
30W ultra violet lamps 120h.If effectively, CVL's photocatalyst catalytic effect in dye solution will be degraded, solution colour will become
It is limpid or even transparent.With solution transmitance after A-83 TU-1901 dual-beams ultraviolet-uisible spectrophotometer test pre-irradiation, lead to
The change of solution transmitance after test pre-irradiation is crossed, implementation result is verified（Referring to accompanying drawing 7-8）.It is purple by accompanying drawing 7-8
Before outer light irradiation, it is seen that optical band transmitance≤5%, infrared band transmitance peak value 15%.After ultraviolet light, it is seen that optical band
Transmitance is 80% or so, and infrared band transmitance is 90% or so.There is a trough at 560nm~570nm.
Each embodiment organic matter degradation effect assessment is as follows：
Through embodiment effect assessment table it can be found that without using Al2O3During colloidal sol, quartzy blanket is almost without photocatalysis effect.With
TiO2Colloidal sol and Al2O3Sol content is raised, and photocatalysis effect gradually rises, and organic matter degradation effect is obvious.But work as TiO2Colloidal sol
And Al2O3When sol content is too high, effect is reduced on the contrary, and this is primarily due to as load TiO2After micelle is excessive, Al2O3Colloidal sol table
The part hole in face is capped, and causes adsorptivity to reduce.
Claims (3)
1. a kind of preparation method of the quartzy blanket of photocatalyst catalysis, it is characterised in that：It comprises the following steps：
1）, quartz glass bar is placed in rod feeder, and control delivery speed in 20~60mm/min；Existed using oxyhydrogen flame
Fused silica glass rod is drawn into quartz glass fibre silk at a temperature of 1800 DEG C~1900 DEG C；
2）, quartz glass bar be drawn into during silk, by 200~280L/min hydrogen-oxygen air flow blowing into quartz glass fibre
Silk, makes it fall within the silica wool for connecing and forming bulk on cotton steel wire；
3）, be up to the silica wool of certain grammes per square metre and taken off on cotton steel wire from connecing, and stretch, pave quartzy cottonseed cake is made；
4）And then photocatalyst is catalyzed quartzy blanket glue even application on the quartzy cottonseed cake after stretching, paving and layer stackup
Plus, until reaching the setting number of plies；
5）, the quartzy cottonseed cake that is up to the setting number of plies roll flat, then will be fixed so that mutually chimeric sizing between each layer quartz cottonseed cake
The quartzy cottonseed cake of type is placed in drying baker dries 1.5~3 hours under the conditions of 100 DEG C；
6）, after the completion of drying, by being sized being cut, obtain, the quartzy blanket finished product of photocatalyst catalysis.
2. a kind of preparation method of quartzy blanket of photocatalyst catalysis according to claim 1, it is characterised in that：Described light
The quartzy blanket glue of catalyst catalysis, is made up of the raw material of following weight parts；
The TiO of polyvinyl alcohol 0.2~42Colloidal sol 2~20
Al2O3The PH of colloidal sol 1~25 debugs agent 1~2
Surplus is deionized water；
The preparation process of the quartzy blanket glue of photocatalyst catalysis is：
（1）, first the deionized water of 1/3 amount is heated to 95 DEG C~98 DEG C, then polyvinyl alcohol is added into deionized water
Dissolved dilution, is prepared into poly-vinyl alcohol solution, and place cooling；
（2）, with the deionized water at normal temperature of 1/3 amount dilute TiO2After colloidal sol, it is poured into poly-vinyl alcohol solution, and continues stirring 20
Minute；
（3）, stirring 20 minutes after, add surplus deionized water, persistently stir 20 minutes；During this, PH debugging is added
Agent, and pH value is controlled between 4~7；, the quartzy blanket glue of photocatalyst catalysis.
3. a kind of preparation method of quartzy blanket of photocatalyst catalysis according to claim 2, it is characterised in that：Described PH
Debugging agent is one kind in glacial acetic acid, formic acid.
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| CN107694330A (en) * | 2017-10-12 | 2018-02-16 | 德·埃德温·大伟 | VOC degradation treatment system |
| CN108993461A (en) * | 2018-07-23 | 2018-12-14 | 西南大学 | The loading nano-titania tubular reactor of efficient degradation formaldehyde and its preparation |
| CN111333336A (en) * | 2020-03-04 | 2020-06-26 | 山东华美建材有限公司 | Novel manufacturing process of negative ion glass fiber ceiling for purifying air |
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| CN111333336A (en) * | 2020-03-04 | 2020-06-26 | 山东华美建材有限公司 | Novel manufacturing process of negative ion glass fiber ceiling for purifying air |
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Application publication date: 20170919 |