CN104437452A - Preparation method and application of dark light catalytic non-photo-catalyst/activated carbon fiber composite material - Google Patents
Preparation method and application of dark light catalytic non-photo-catalyst/activated carbon fiber composite material Download PDFInfo
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- CN104437452A CN104437452A CN201410629852.7A CN201410629852A CN104437452A CN 104437452 A CN104437452 A CN 104437452A CN 201410629852 A CN201410629852 A CN 201410629852A CN 104437452 A CN104437452 A CN 104437452A
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Abstract
The invention belongs to the field of novel materials and photocatalysis and particularly relates to a preparation method and application of a dark light catalytic non-photo-catalyst/activated carbon fiber composite material. The dark light catalytic non-photo-catalyst/activated carbon fiber composite material is characterized by comprising a non-photo-catalyst, an activated carbon fiber raw material, an adhesive and water. The preparation method comprises the following steps: cutting the activated carbon fiber to required size and perforating; weighing the non-photo-catalyst, and adding water to form a non-photo-catalyst solution; preparing a chitin powder adhesive; spray coating the non-photo-catalyst solution onto the surface of the activated carbon fiber, drying, spray coating the adhesive onto the surface of the coated non-photo-catalyst solution to fix the adhesive on the surface of the activated carbon fiber, and drying. The dark light catalytic non-photo-catalyst/activated carbon fiber composite material can purify pollutants through adsorption and catalysis functions under dark light or sufficient light, the formaldehyde degradation efficiency within 1 hour reaches 99.9%, the load is firm, the specific surface area is high, and the composite material can be regenerated in situ under sunlight exposure or at low temperature of 60 DEG C.
Description
Technical field
The invention belongs to new material and photocatalysis field, particularly relate to a kind of dark light-catalysed without photocatalyst/activated carbon fibrous composite preparation method and application.
Background technology
Along with the raising of economic development and people's living standard, finishing becomes popular gradually.The requirement of people to the comfortableness of room and office city institute, attractive in appearanceization and mechanization is more and more higher, and it is also more and more higher to fit up density, but air pollution problem inside rooms that is that cause also is on the rise because finishing material, construction material and indoor furniture are not up to standard.The formaldehyde that finishing material discharges becomes room air " number one pollutant ".At present, the method processing indoor formaldehyde mainly contains: filtration, absorption, plasma, ozone oxidation etc.But these method removal efficiency are low, and clean-up effect is limited, and large by condition restriction.
Also make photoactivation to carry out to adsorb and degrade, such as photocatalyst, photocatalyst is when reacting, the extremely strong free hydroxy of oxidability and active oxygen can be produced, there is very strong photoredox function, the various organic compound of oxidable decomposition, PARA FORMALDEHYDE PRILLS(91,95), benzene, ammonia, TVOC etc. have very strong degradation capability.Moreover, photocatalyst also has very strong sterilizing function, organic pollution can be resolved into free of contamination water and carbon dioxide, the function such as thus have extremely strong sterilization, deodorizing, mildew-resistant, anti-fouling and self-cleaning, purify air.But photocatalyst under the irradiation of light, just must can produce similar photosynthetic light-catalyzed reaction.Be exactly in simple terms: if when not having light, photocatalyst does not just have effect.Being that the whole world is emerging without photocatalyst new and effectively goes formaldehyde materials, and harmless to human non-toxic, catalytic activity is high, tool high-durability, stable in properties.Which overcome the weakness of photocatalyst, catalytic reaction can be produced under unglazed or insufficient light condition, produce the hydrogen-oxygen free radical with Strong oxdiative power, can significantly, the pernicious gas such as continual elimination formaldehyde, benzene, TVOC, play deodorizing, antibacterial, mildew-resistant, antifouling, the effect that purifies air simultaneously, accomplish 24 h air purifications.
But, be used alone without photocatalyst then exist difficult reclaim easily cause secondary pollution, cost high, promote difficult problem.
Summary of the invention
In order to solve above technical problem, the invention provides a kind of all can carry out under half-light or the low light level optical condition light-catalyzed reaction without photocatalyst/activated carbon fibrous composite preparation method, not only the technical problem that photocatalyst just must can produce light-catalyzed reaction under UV-irradiation is overcome, and reduce secondary pollution, cost is low, easy to use, easy popularization, preparation method is simple.
Solve the dark light-catalysed preparation method without photocatalyst/activated carbon fibrous composite in the present invention of above technical problem, comprise without photocatalyst, NACF raw material, sticker and water, it is characterized in that: preparation process is as follows:
(1) NACF is cut into required size, punching;
(2) take without photocatalyst, add water and become without photocatalyst solution;
(3) chitin powder sticker is configured;
(4) by step (2) without photocatalyst solution spraying in step (1) NACF surface, dry, temperature 55-65 DEG C, time 0.5-1.5h; Spray sticker more spraying without in photocatalyst solution surface, make it be fixed on NACF surface, dry, temperature 55-65 DEG C, time 0.5-6.5h and get final product.
The present invention with without photocatalyst, chitin powder and NACF for primary raw material, make to be attached to NACF surface without photocatalyst in the mode sprayed, then with chitin powder for sticker makes its fixing obtained composite.NACF has high specific surface, and the pernicious gases such as PARA FORMALDEHYDE PRILLS(91,95), benzene, TVOC have powerful adsorption capacity, and activated carbon fiber, when ultraviolet irradiation, light-catalyzed reaction degradation of formaldehyde can occur.
Wherein, step (2) is described is 1:5-10 without photocatalyst and water quality ratio.
Described NACF will in a row interlock punching, and aperture is respectively d
1=0.2-1.8mm, d
2=1.9-4mm.
Described sticker compound method is as follows:
in water, add glacial acetic acid be made into the glacial acetic acid solution that mass concentration is 1-8%;
glacial acetic acid solution is placed in thermostat water bath, and water-bath temperature is 60 DEG C, adds chitin powder, and stirring and making mass concentration is 1-6% chitin powder solution;
get 50ml chitin powder solution, add the obtained sticker of 150-950ml water mixing.
A kind of dark light-catalysed preparation method without photocatalyst/activated carbon fibrous composite in the present invention,
In described step (2), be make it disperse by being placed in the ultrasonic 15-30min of ultrasonic cleaning instrument without photocatalyst without photocatalyst solution, be then placed in thermostat water bath and stir, bath temperature is 20-30 DEG C.
What in the present invention prepared by method is dark light-catalysed without photocatalyst/activated carbon fibrous composite, has absorption/catalysis/filtration triple layer function: the NACF of internal layer is the adsorption layer with superpower adsorption capacity; Middle level without photocatalyst be evenly attached to NACF surface and gap between, by NACF parcel wherein, form Catalytic Layer, the gases such as the formaldehyde can degraded in air, also to degrade the gases such as the formaldehyde that overflows from NACF because condition change, pin and catalytic degradation by the pollutant adsorbed; Outer transparent adhesive protection is not run off without photocatalyst, and allows light therethrough, and strengthen the catalytic action without photocatalyst, filter course is protected in formation.
In the present invention, dark light-catalysed without photocatalyst/activated carbon fibrous composite be applied as with without photocatalyst quality and NACF surface area for calculating, be 10-100g/m without photocatalyst solution spraying amount
2; With the weight of sticker own and NACF surface area for calculating, sticker quantity for spray is 200-1000ml/ m
2.
The present invention originally will without photocatalyst steady load on NACF, have and highly can reuse the advantage with uninterrupted absorption degradation, the composite prepared all can adsorb efficiently, filter and catalytic reaction under bright and clear or subdued light conditions, for air contaminant treatment, room air process, water pollution control, removal PM2.5, sterilizing etc., can accomplish uninterruptedly purification in a day 24 hours, clean-up effect can reach 99.9%.
The composite material film that the present invention obtains is even, and in conjunction with firm, the material adopted is to environment and human non-toxic's evil, and preparation is simple, and use cost is low.To be exposed to the sun by sunshine or 60 DEG C of low temperature just can realize the in-situ regeneration of composite, can repeatedly to use for a long time.
Detailed description of the invention
Be described in further detail the present invention below in conjunction with example, what use buys in market without photocatalyst and other raw material:
Case study on implementation 1
By NACF cutting 20 × 20cm size.Then take 20g without photocatalyst, add 200ml high purity water, in ultrasonic cleaning instrument, the ultrasonic 30min of 80W is placed in thermostat water bath and stirs.Then, uniformly spraying mixing in NACF surface without photocatalyst, electric hot plate is dried, temperature 60 C, time 1h.Obtained required sample.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 70%; PM2.5 clearance is 50%;
killbacterium sterilization rate is 60%; The deodorizing rate of eliminating the unusual smell is 67%.
Case study on implementation 2
In a row staggered large aperture will be stamped, d after NACF cutting 20 × 20cm size
1=1.0mm, d
2=2.0mm.Then take 20g without photocatalyst, add 200ml high purity water, in ultrasonic cleaning instrument, the ultrasonic 30min of 80W is placed in thermostat water bath and stirs.Then, uniformly spraying mixing in NACF surface without photocatalyst, electric hot plate is dried, temperature 60 C, time 1h.Just obtained required sample.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 85%; PM2.5 clearance is 80%;
killbacterium sterilization rate is 97%; The deodorizing rate of eliminating the unusual smell is 90%.
Case study on implementation 3
In a row staggered large aperture will be stamped, d after NACF cutting 20 × 20cm size
1=1.0mm, d
2=2.0mm.Then take 20g without photocatalyst, add 200ml high purity water, in ultrasonic cleaning instrument, the ultrasonic 30min of 80W is placed in thermostat water bath and stirs.Prepare sticker simultaneously.Wherein sticker compound method is: get 4wt% glacial acetic acid solution 100g, adds chitin powder and is placed on digital display thermostat water bath stirring and dissolving and makes 3% chitin powder solution.Water-bath temperature is 60 DEG C.Get 50ml chitin powder solution again, add the obtained sticker of 450ml high purity water mixing.Finally, uniformly spraying mixing in NACF surface without photocatalyst, electric hot plate is dried, temperature 60 C, time 1h; Spraying sticker again makes it be fixed on NACF surface, and electric hot plate is dried, temperature 60 C, time 1h.Just the obtained composite with half-light catalysis.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 99.9%; PM2.5 clearance is 99%;
killbacterium sterilization rate is 99%; The deodorizing rate of eliminating the unusual smell is 100%.
Case study on implementation 4
In a row staggered large aperture will be stamped, d after NACF cutting 20 × 20cm size
1=0.2mm, d
2=1.9mm.Then take 20g without photocatalyst, add 100ml high purity water, in ultrasonic cleaning instrument, the ultrasonic 30min of 80W is placed in thermostat water bath and stirs.Prepare sticker simultaneously.Wherein sticker compound method is: get 1wt% glacial acetic acid solution 100g, adds chitin powder and is placed on digital display thermostat water bath stirring and dissolving and makes 6% chitin powder solution.Water-bath temperature is 60 DEG C.Get 50ml chitin powder solution again, add the obtained sticker of 150ml high purity water mixing.Finally, uniformly spraying mixing in NACF surface without photocatalyst, dries, temperature 60 C, time 1h; Spraying sticker again makes it be fixed on NACF surface, dries, temperature 60 C, time 1h.Just the obtained composite with half-light catalysis.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 75%; PM2.5 clearance is 80%;
killbacterium sterilization rate is 90%; The deodorizing rate of eliminating the unusual smell is 95%.
Case study on implementation 5
In a row staggered large aperture will be stamped, d after NACF cutting 20 × 20cm size
1=1.8mm, d
2=4.0mm.Then take 20g without photocatalyst, add 100ml high purity water, in ultrasonic cleaning instrument, the ultrasonic 30min of 80W is placed in thermostat water bath and stirs.Prepare sticker simultaneously.Wherein sticker compound method is: get 8wt% glacial acetic acid solution 100g, adds chitin powder and is placed on digital display thermostat water bath stirring and dissolving and makes 1% chitin powder solution.Water-bath temperature is 60 DEG C.Get 50ml chitin powder solution again, add the obtained sticker of 950ml high purity water mixing.Finally, uniformly spraying mixing in NACF surface without photocatalyst, dries, temperature 60 C, time 1h; Spraying sticker again makes it be fixed on NACF surface, dries, temperature 60 C, time 1h.Just the obtained composite with half-light catalysis.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 85%; PM2.5 clearance is 80%;
killbacterium sterilization rate is 90%; The deodorizing rate of eliminating the unusual smell is 95%.
Case study on implementation 6
In a row staggered large aperture will be stamped, d after NACF cutting 20 × 20cm size
1=0.2mm, d
2=1.9mm.Then take 20g without photocatalyst, add 160ml high purity water, in ultrasonic cleaning instrument, the ultrasonic 15min of 80W is placed in thermostat water bath and stirs.Prepare sticker simultaneously.Wherein sticker compound method is: get 4wt% glacial acetic acid solution 100g, adds chitin powder and is placed on digital display thermostat water bath stirring and dissolving and makes 3% chitin powder solution.Water-bath temperature is 60 DEG C.Get 50ml chitin powder solution again, add the obtained sticker of 450ml high purity water mixing.Finally, uniformly spraying mixing in NACF surface without photocatalyst, dries, temperature 65 DEG C, time 0.5h; Spraying sticker again makes it be fixed on NACF surface, dries, temperature 65 DEG C, time 0.5h.Just the obtained composite with half-light catalysis.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 80%; PM2.5 clearance is 80%;
killbacterium sterilization rate is 95%; The deodorizing rate of eliminating the unusual smell is 95%.
Case study on implementation 7
In a row staggered large aperture will be stamped, d after NACF cutting 20 × 20cm size
1=1.0mm, d
2=2.0mm.Then take 20g without photocatalyst, add 100ml high purity water, in ultrasonic cleaning instrument, the ultrasonic 25min of 80W is placed in thermostat water bath and stirs.Prepare sticker simultaneously.Wherein sticker compound method is: get 4wt% glacial acetic acid solution 100g, adds chitin powder and is placed on digital display thermostat water bath stirring and dissolving and makes 6% chitin powder solution.Water-bath temperature is 55 DEG C.Get 50ml chitin powder solution again, add the obtained sticker of 950ml high purity water mixing.Finally, uniformly spraying mixing in NACF surface without photocatalyst, dries, temperature 60 C, time 1h; Spraying sticker again makes it be fixed on NACF surface, dries, temperature 60 C, time 1h.Just the obtained composite with half-light catalysis.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 75%, PM2.5 clearance is 80%;
killbacterium sterilization rate is 95%; The deodorizing rate of eliminating the unusual smell is 95%.
Case study on implementation 8
In a row staggered large aperture will be stamped, d after NACF cutting 20 × 20cm size
1=1.8mm, d
2=4.0mm.Then take 20g without photocatalyst, add 120ml high purity water, in ultrasonic cleaning instrument, the ultrasonic 20min of 80W is placed in thermostat water bath and stirs.Prepare sticker simultaneously.Wherein sticker compound method is: get 8wt% glacial acetic acid solution 100g, adds chitin powder and is placed on digital display thermostat water bath stirring and dissolving and makes 1% chitin powder solution.Water-bath temperature is 65 DEG C.Get 50ml chitin powder solution again, add the obtained sticker of 150ml high purity water mixing.Finally, uniformly spraying mixing in NACF surface without photocatalyst, dries, temperature 55 DEG C, time 1.5h; Spraying sticker again makes it be fixed on NACF surface, dries, temperature 55 DEG C, time 1.5h.Just the obtained composite with half-light catalysis.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 86%, PM2.5 clearance is 90%;
killbacterium sterilization rate is 95%; The deodorizing rate of eliminating the unusual smell is 95%.
Case study on implementation 9
A kind of dark light-catalysed without photocatalyst/activated carbon fibrous composite and preparation method as case study on implementation 3, wherein NACF is cut to 20 × 100.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 86%, PM2.5 clearance is 90%;
killbacterium sterilization rate is 95%; The deodorizing rate of eliminating the unusual smell is 95%.
Case study on implementation 10
A kind of dark light-catalysed without photocatalyst/activated carbon fibrous composite and preparation method as case study on implementation 3, wherein NACF is cut to 20 × 10.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 66%; PM2.5 clearance is 90%;
killbacterium sterilization rate is 95%; The deodorizing rate of eliminating the unusual smell is 95%.
Case study on implementation 11
A kind of dark light-catalysed without photocatalyst/activated carbon fibrous composite and preparation method as case study on implementation 3, wherein quantity for spray is without photocatalyst solution: sticker=1:25.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 89%; PM2.5 clearance is 90%;
killbacterium sterilization rate is 95%; The deodorizing rate of eliminating the unusual smell is 95%.
Case study on implementation 12
A kind of dark light-catalysed without photocatalyst/activated carbon fibrous composite and preparation method as case study on implementation 3, wherein quantity for spray is without photocatalyst solution: sticker=1:50.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 80%; PM2.5 clearance is 90%;
killbacterium sterilization rate is 95%; The deodorizing rate of eliminating the unusual smell is 95%.
Case study on implementation 13
A kind of dark light-catalysed without photocatalyst/activated carbon fibrous composite and preparation method as case study on implementation 3, wherein chitin concentration of polymer solution is 6%.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 80%; PM2.5 clearance is 90%;
killbacterium sterilization rate is 95%; The deodorizing rate of eliminating the unusual smell is 95%.
Case study on implementation 14
A kind of dark light-catalysed without photocatalyst/activated carbon fibrous composite and preparation method as case study on implementation 3, wherein chitin concentration of polymer solution is 1%.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 75%; PM2.5 clearance is 90%;
killbacterium sterilization rate is 95%; The deodorizing rate of eliminating the unusual smell is 95%.
Case study on implementation 15
A kind of dark light-catalysed without photocatalyst/activated carbon fibrous composite and preparation method as case study on implementation 3, be wherein 30g without photocatalytic spray amount.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 86%, PM2.5 clearance is 95%;
killbacterium sterilization rate is 95%; The deodorizing rate of eliminating the unusual smell is 95%.
Case study on implementation 16
A kind of dark light-catalysed without photocatalyst/activated carbon fibrous composite and preparation method as case study on implementation 3, be wherein 10g without photocatalytic spray amount.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 87%, PM2.5 clearance is 90%;
killbacterium sterilization rate is 95%; The deodorizing rate of eliminating the unusual smell is 95%.
Case study on implementation 17
A kind of dark light-catalysed without photocatalyst/activated carbon fibrous composite and preparation method as case study on implementation 3, wherein the quantity for spray of sticker is 200ml.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 86%, PM2.5 clearance is 90%;
killbacterium sterilization rate is 95%; The deodorizing rate of eliminating the unusual smell is 95%.
Case study on implementation 18
A kind of dark light-catalysed without photocatalyst/activated carbon fibrous composite and preparation method as case study on implementation 3, wherein the quantity for spray of sticker is 1000ml.The clearance of obtained sample PARA FORMALDEHYDE PRILLS(91,95) is 80%, PM2.5 clearance is 90%;
killbacterium sterilization rate is 95%; The deodorizing rate of eliminating the unusual smell is 95%.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. dark light-catalysed without photocatalyst/activated carbon fibrous composite preparation method, comprise without photocatalyst, NACF raw material, sticker and water, it is characterized in that: preparation process is as follows:
(1) NACF is cut into required size, punching;
(2) take without photocatalyst, add water and become without photocatalyst solution;
(3) chitin powder sticker is configured;
(4) by step (2) without photocatalyst solution spraying in step (1) NACF surface, dry, temperature 55-65 DEG C, time 0.5-1.5h; Spray sticker more spraying without in photocatalyst solution surface, make it be fixed on NACF surface, dry, temperature 55-65 DEG C, time 0.5-6.5h, to obtain final product.
2. according to claim 1 dark light-catalysed without photocatalyst/activated carbon fibrous composite preparation method: to it is characterized in that: described in step (2) is 1:5-10 without photocatalyst and water quality ratio.
3. the dark light-catalysed preparation method without photocatalyst/activated carbon fibrous composite according to claim 1, is characterized in that: described NACF will in a row interlock punching, and aperture is respectively d
1=0.2-1.8mm, d
2=1.9-4mm.
4. according to claim 1 dark light-catalysed without photocatalyst/activated carbon fibrous composite preparation method, it is characterized in that: described sticker compound method is as follows:
in water, add glacial acetic acid be made into the glacial acetic acid solution that mass concentration is 1-8%;
glacial acetic acid solution is placed in thermostat water bath, and water-bath temperature is 55-65 DEG C, adds chitin powder, and stirring and making mass concentration is 1-6% chitin powder solution;
get 50ml chitin powder solution, add the obtained sticker of 150-950ml water mixing.
5. one according to claim 1 is dark light-catalysed without photocatalyst/activated carbon fibrous composite preparation method, it is characterized in that, in described step (2), make it disperse by being placed in the ultrasonic 15-30min of ultrasonic cleaning instrument without photocatalyst without photocatalyst solution, then be placed in thermostat water bath to stir, bath temperature is 20-30 DEG C.
6. a kind of dark light-catalysed application without photocatalyst/activated carbon fibrous composite according to any one of claim 1-5, is characterized in that: with without photocatalyst quality and NACF surface area for calculating, be 10-100g/m without photocatalyst solution spraying amount
2; With the weight of sticker own and NACF surface area for calculating, sticker quantity for spray is 200-1000ml/ m
2.
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| CN111495364A (en) * | 2020-05-14 | 2020-08-07 | 陕西科技大学 | Catalyst with dark photocatalytic activity and preparation method and application thereof |
| CN111495364B (en) * | 2020-05-14 | 2023-02-21 | 陕西科技大学 | Catalyst with dark photocatalytic activity and preparation method and application thereof |
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