CN108744716A - A kind of strainer for efficiency air cleaning device - Google Patents
A kind of strainer for efficiency air cleaning device Download PDFInfo
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- CN108744716A CN108744716A CN201810363282.XA CN201810363282A CN108744716A CN 108744716 A CN108744716 A CN 108744716A CN 201810363282 A CN201810363282 A CN 201810363282A CN 108744716 A CN108744716 A CN 108744716A
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- titanium dioxide
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- air cleaning
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- 238000004140 cleaning Methods 0.000 title claims abstract description 19
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 44
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 39
- AJCITCXGGFVRSL-UHFFFAOYSA-N [Yb].[Eu].[N] Chemical compound [Yb].[Eu].[N] AJCITCXGGFVRSL-UHFFFAOYSA-N 0.000 claims abstract description 39
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000012545 processing Methods 0.000 claims abstract description 29
- 238000002360 preparation method Methods 0.000 claims abstract description 26
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 16
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002002 slurry Substances 0.000 claims abstract description 10
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 239000002131 composite material Substances 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 229920001084 poly(chloroprene) Polymers 0.000 claims abstract description 5
- 238000001179 sorption measurement Methods 0.000 claims abstract description 5
- 150000001875 compounds Chemical class 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 15
- 238000001291 vacuum drying Methods 0.000 claims description 15
- 238000013019 agitation Methods 0.000 claims description 14
- 239000002270 dispersing agent Substances 0.000 claims description 13
- 235000019441 ethanol Nutrition 0.000 claims description 11
- 125000005909 ethyl alcohol group Chemical group 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000013329 compounding Methods 0.000 claims description 7
- 229920000058 polyacrylate Polymers 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- KUBYTSCYMRPPAG-UHFFFAOYSA-N ytterbium(3+);trinitrate Chemical compound [Yb+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O KUBYTSCYMRPPAG-UHFFFAOYSA-N 0.000 claims description 6
- 229910002538 Eu(NO3)3·6H2O Inorganic materials 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 5
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000012153 distilled water Substances 0.000 claims description 5
- GAGGCOKRLXYWIV-UHFFFAOYSA-N europium(III) nitrate Inorganic materials [Eu+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O GAGGCOKRLXYWIV-UHFFFAOYSA-N 0.000 claims description 5
- 229910017604 nitric acid Inorganic materials 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims 1
- 238000000746 purification Methods 0.000 abstract description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract 1
- 239000003570 air Substances 0.000 description 22
- 230000000694 effects Effects 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 8
- 239000006185 dispersion Substances 0.000 description 8
- 230000001699 photocatalysis Effects 0.000 description 6
- 238000003915 air pollution Methods 0.000 description 5
- 238000007146 photocatalysis Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 238000004887 air purification Methods 0.000 description 3
- 235000013339 cereals Nutrition 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 2
- 229910052693 Europium Inorganic materials 0.000 description 2
- 229910052769 Ytterbium Inorganic materials 0.000 description 2
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229960000907 methylthioninium chloride Drugs 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Natural products CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- -1 ethyl alcohol Amine Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
The present invention relates to a kind of strainers for efficiency air cleaning device.The preparation process of strainer includes the following steps：S1 bonds to form adsorption layer using neoprene in supporter nonwoven surface；S2 obtains activated carbon composite carrier in the active carbon layer of absorption layer surface sprinkling thickness about 1~5mm；The nano-titanium dioxide that grain size is 10-100nm is dispersed in water by S3, obtains aggregate slurry, activated carbon composite carrier is disseminated 2~4 times in aggregate slurry, is dried, and the strainer that activated carbon surface has nano-titanium dioxide is finally obtained.Wherein, in S3 titanium dioxide be modified processing nitrogen europium ytterbium coblended nano TiO 2.The strainer of the present invention has higher purification efficiency, assists in removing the harmful components such as formaldehyde, has broad application prospects.
Description
Technical field
The present invention relates to a kind of filtering materials, and in particular to a kind of strainer for efficiency air cleaning device.
Background technology
With the high speed development of domestic economy, people's living standards continue to improve, then our surrounding air
Quality is but constantly declining, severe air pollution, and serious influence is brought on people's breathing and health.Air
In a large amount of particle dust of suspension, the concentration of sulfide and the nitrogen oxides of motor vehicle emission caused by industrialized production
Accounting just rises year by year, and pollution level is on the rise.Currently, people give habitation environment quality and health more next
More concerns prevents air pollution, and it is one of social hotspots topic to improve ambient air quality.In order to cope with finishing pollution and
The room air pollution that urban air pollution may be brought, air purifier more and more selected by Chinese family, become
A kind of emerging household electrical appliance.In recent years, preferable developing state, domestic and international many enterprises are presented in air purifier market in China's
The air purifier industry fermented is begun to focus on, one of popular investment concerns are become.
Air cleaning unit is to refer to adsorb, decompose or convert the pollutant in various air, effectively improves Interior Space
The product of gas cleannes.There are application, house field to be filled with the domestic air purification of single machine class in house, medical treatment, industrial circle
It is set to the main product in market, most important function is the particulate matter removed in air, including anaphylactogen, indoor etc., simultaneously
It can also solve to ask due to interior caused by finishing or other reasons, the underground space, interior volatile organic matter air pollution
Topic.Since the release of the space Air Contamination object of relative closure has the characteristics that persistence and uncertainty, air is used
It is internationally recognized one of the method for improving indoor air quality that purifier, which purifies the air of a room,.
The strainer of air cleaning unit is the critical component for realizing air-cleaning function, and existing strainer is existing using activity
Charcoal is compound as filtering material with nano-titanium dioxide, but its clean-up effect is limited, it is difficult to meet in existing market for efficient
The demand of purification.
Therefore, the research emphasis that the clean-up effect of strainer is always this field how is further increased.
Invention content
Clean-up effect in order to solve air cleaning unit in the prior art technical problem to be improved, the present invention propose
Following technical solution：
The preparation process of a kind of strainer for efficiency air cleaning device, the strainer includes the following steps：
S1 bonds to form adsorption layer using neoprene in supporter nonwoven surface；
S2 obtains activated carbon composite carrier in the active carbon layer of absorption layer surface sprinkling thickness about 1~5mm；
The nano-titanium dioxide that grain size is 10-100nm is dispersed in water by S3, obtains aggregate slurry, activated carbon is answered
It closes carrier to disseminate 2~4 times in aggregate slurry, dry, finally obtain the strainer that activated carbon surface has nano-titanium dioxide；
Wherein, in S3 titanium dioxide be modified processing nitrogen europium ytterbium coblended nano TiO 2.
The preparation process of the nitrogen europium ytterbium coblended nano TiO 2 of the modified processing includes the following steps：
(1) preparation of solution A:The butyl titanate for measuring 20~40mL is added in 30~60mL absolute ethyl alcohols, through electromagnetism
Stirring；
(2) preparation of solution B:By a certain amount of triethylamine, the concentrated nitric acid, certain of 10~20mL distilled water, 0.30~1mL
Yb (the NO of amount3)3·5H2O and a certain amount of Eu (NO3)3·6H2O is added in 10~20mL absolute ethyl alcohols；Wherein, three ethyl alcohol
Amine addition presses N element and TiO2Molar ratio be 0.5%~2.5% calculate；Yb(NO3)3·5H2The addition of O presses Yb elements
With TiO2Molar ratio be 1.5%~2.5% calculate；Eu(NO3)3·6H2The addition of O presses Eu elements and TiO2Molar ratio be
1.0%~2.0% calculates；
(3) solution A is added dropwise in solution B under being stirred by ultrasonic, continues to stir, obtains uniform colloidal sol, under room temperature
For 24 hours~48h is stood, then is dried in vacuo in vacuum drying chamber, grind into powder, through calcination processing, obtains nitrogen europium ytterbium codope
Nano-titanium dioxide；
(4) the nitrogen europium ytterbium coblended nano TiO 2 that step (3) obtains is added in modifying agent and is modified processing,
And ultrasonic agitation processing is carried out in modifying process, through being dried to get receiving to the nitrogen europium ytterbium codope of modified processing
Rice titanium dioxide；Wherein, the mass ratio of nitrogen europium ytterbium coblended nano TiO 2 and modifying agent is 1~10:50；
Wherein, it is 1 in mass ratio that modifying agent, which is polyacrylate hyper-dispersant and compound (A),：2~6 compounding mixing；
Wherein, the structural formula of the compound (A) is
Preferably, the electromagnetic agitation time described in step (1) is 20min~60min.
Preferably, vacuum drying temperature described in step (3) is 80~120 DEG C.
Preferably, vacuum drying time described in step (3) is 20~60min.
Preferably, the temperature calcined described in step (3) is 500~700 DEG C.
Technical scheme of the present invention has as follows by beneficial effect：
(1) by nitrogen, europium, ytterbium these three element dopings to nano-titanium dioxide, and optimize above-mentioned three by many experiments
The doping of kind element, is finally obtained the suitable doping of above-mentioned three kinds of elements, and then make the photocatalysis of nano-titanium dioxide
Efficiency is further enhanced.
(2) be directed to the not high problem of nano-titanium dioxide dispersibility, the present invention using polyacrylate hyper-dispersant with
Modifying agent of the compounding mixture of compound (A) dispersant as nano-titanium dioxide, and pass through many experiments, obtain two kinds
The optimum compound proportion example of dispersant makes two kinds of dispersants play collaboration peptizaiton, improves nitrogen europium ytterbium dopen Nano to greatest extent
The dispersion effect of titanium dioxide.
(3) compared to common nano-titanium dioxide, using modified processing nitrogen europium ytterbium coblended nano TiO 2 with
The compound air purification efficiency that air cleaning unit can be significantly improved as strainer of activated carbon, the reason is that modified processing
There is nitrogen europium ytterbium coblended nano TiO 2 higher light to urge efficiency and better dispersion effect.
Description of the drawings
Fig. 1 is the electron micrograph of the nitrogen europium ytterbium coblended nano TiO 2 of modified processing.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments and comparative example,
The present invention will be described in further detail.
First, prepare Examples 1 to 3 and describe the nitrogen europium ytterbium codope of modified processing with preparation comparative example 1~10 to receive
The preparation process and its photocatalysis effect and dispersion effect of the preparation process of rice titanium dioxide.
Prepare embodiment 1
The preparation process of the nitrogen europium ytterbium coblended nano TiO 2 of modified processing is as follows：
(1) preparation of solution A:The butyl titanate for measuring 20ml is added in 30ml absolute ethyl alcohols, through electromagnetic agitation；
(2) preparation of solution B:By a certain amount of triethylamine, 10 distilled water, the concentrated nitric acid of 0.30mL and a certain amount of Yb
(NO3)3·5H2O and a certain amount of Eu (NO3)3·6H2O is added in 10mL absolute ethyl alcohols；Wherein, triethanolamine addition presses N
Element and TiO2Molar ratio be 0.5% calculate；Yb(NO3)3·5H2The addition of O presses Yb elements and TiO2Molar ratio be
1.5% calculates；Eu(NO3)3·6H2The addition of O presses Eu elements and TiO2Molar ratio be 1.0% calculate；
(3) solution A is added dropwise in solution B under being stirred by ultrasonic, continues to stir, obtains uniform colloidal sol, under room temperature
It stands for 24 hours, then is dried in vacuo in vacuum drying chamber, grind into powder, through calcination processing, obtain the nanometer of nitrogen europium ytterbium codope
Titanium dioxide.
(4) nano-titanium dioxide for the nitrogen europium ytterbium codope that step (3) obtains is added in modifying agent and is modified place
Reason, and carries out ultrasonic agitation processing in modifying process, through being dried to get to the nano-silica of modified nitrogen europium ytterbium codope
Change titanium；Wherein, the mass ratio of the nano-titanium dioxide of nitrogen europium ytterbium codope and modifying agent is 1:50.
Wherein, it is 1 in mass ratio that modifying agent, which is polyacrylate hyper-dispersant and compound (A),：2 compounding mixing；Its
In, the structural formula of the compound (A) is
Wherein, the electromagnetic agitation time described in step (1) is 20min；Vacuum drying temperature described in step (3) is 80
℃；Vacuum drying time described in step (3) is 20min；The temperature calcined described in step (3) is 500 DEG C.
Prepare embodiment 2
The preparation process of the nitrogen europium ytterbium coblended nano TiO 2 of modified processing is as follows：
(1) preparation of solution A:The butyl titanate for measuring 40mL is added in 60mL absolute ethyl alcohols, through electromagnetic agitation；
(2) preparation of solution B:By a certain amount of triethylamine, 20mL distilled water, the concentrated nitric acid of 1mL and a certain amount of Yb
(NO3)3·5H2O and a certain amount of Eu (NO3)3·6H2O is added in 20mL absolute ethyl alcohols；Wherein, triethanolamine addition presses N
Element and TiO2Molar ratio be 1.5% calculate；Yb(NO3)3·5H2The addition of O presses Yb elements and TiO2Molar ratio be
2.0% calculates；Eu(NO3)3·6H2The addition of O presses Eu elements and TiO2Molar ratio be 1.5% calculate；
(3) solution A is added dropwise in solution B under being stirred by ultrasonic, continues to stir, obtains uniform colloidal sol, under room temperature
48h is stood, then is dried in vacuo in vacuum drying chamber, grind into powder, through calcination processing, obtains the nanometer of nitrogen europium ytterbium codope
Titanium dioxide.
(4) nano-titanium dioxide for the nitrogen europium ytterbium codope that step (3) obtains is added in modifying agent and is modified place
Reason, and carries out ultrasonic agitation processing in modifying process, through being dried to get to the nano-silica of modified nitrogen europium ytterbium codope
Change titanium；Wherein, the mass ratio of the nano-titanium dioxide of nitrogen europium ytterbium codope and modifying agent is 1:5.
The modifying agent is that polyacrylate hyper-dispersant and compound (A) are 1 in mass ratio：4 compounding mixing；Its
In, the structural formula of the compound (A) is
Wherein, the electromagnetic agitation time described in step (1) is 60min；Vacuum drying temperature described in step (3) is 120
℃；Vacuum drying time described in step (3) is 60min；The temperature calcined described in step (3) is 700 DEG C.
Prepare embodiment 3
The preparation process of the nitrogen europium ytterbium coblended nano TiO 2 of modified processing is as follows：
(1) preparation of solution A:The butyl titanate for measuring 30mL is added in 45mL absolute ethyl alcohols, through electromagnetic agitation；
(2) preparation of solution B:By a certain amount of triethylamine, 15mL distilled water, the concentrated nitric acid of 0.7mL and a certain amount of Yb
(NO3)3·5H2O and a certain amount of Eu (NO3)3·6H2O is added in 15mL absolute ethyl alcohols；Wherein, triethanolamine addition presses N
Element and TiO2Molar ratio be 2.5% calculate；Yb(NO3)3·5H2The addition of O presses Yb elements and TiO2Molar ratio be
2.5% calculates；Eu(NO3)3·6H2The addition of O presses Eu elements and TiO2Molar ratio be 2.0% calculate；
(3) solution A is added dropwise in solution B under being stirred by ultrasonic, continues to stir, obtains uniform colloidal sol, under room temperature
36h is stood, then is dried in vacuo in vacuum drying chamber, grind into powder, through calcination processing, obtains the nanometer of nitrogen europium ytterbium codope
Titanium dioxide.
(4) nano-titanium dioxide for the nitrogen europium ytterbium codope that step (3) obtains is added in modifying agent and is modified place
Reason, and carries out ultrasonic agitation processing in modifying process, through being dried to get to the nano-silica of modified nitrogen europium ytterbium codope
Change titanium；Wherein, the mass ratio of the nano-titanium dioxide of nitrogen europium ytterbium codope and modifying agent is 1:10.
The modifying agent is that polyacrylate hyper-dispersant and compound (A) are 1 in mass ratio：6 compounding mixing；Its
In, the structural formula of the compound (A) is
Wherein, the electromagnetic agitation time described in step (1) is 40min；Vacuum drying temperature described in step (3) is 100
℃；Vacuum drying time described in step (3) is 40min；The temperature calcined described in step (3) is 600 DEG C.
Prepare comparative example 1~10
In order to show the technical contribution of the present invention as much as possible, prepare only to change preparation embodiment 2 in comparative example 1~10
The compound proportion of the doping and two kinds of dispersants of middle three kinds of elements of nitrogen europium ytterbium, other experiment conditions and experiment parameter are real with preparation
It is consistent to apply example 2.In order to facilitate comparison, the experimental data for preparing Examples 1 to 3 and preparation comparative example 1~10 is listed in Table 1 below.
Table 1
Photocatalysis effect detects：The photocatalytic activity of sample by methylene blue solution carry out photocatalytic degradation evaluation,
Performance test carries out on light BL-GHX types chemical reaction instrument.A certain amount of methylene blue solution is accurately measured, 30mg light is added
Catalyst is sufficiently stirred absorption in the dark, is irradiated, is reacted with 300W xenon lamps, interval sampling, with 0.45 μm of water system filter membrane mistake
Filter takes filtered fluid ultraviolet specrophotometer to measure the absorbance of solution.
Dispersed effect detection：Granularity observation method is the granularity or particle diameter distribution by observing nano particle in dispersion
A kind of common appraisal procedure.Under same treatment conditions, distribution of particles in dispersion liquid is measured under identical instrument.It will stand
One day dispersion liquid, using laser nano particle size analyzer determination nano titanium oxide dispersion Average Particle Diameters and its distribution.
The testing result of the photocatalysis effect and dispersion effect that prepare embodiment 1-3 and prepare comparative example 1-10 is listed in table 2
In.
Table 2
The above results show：It (1), can in the three kinds of element dopings to nano-titanium dioxide of nitrogen, europium, ytterbium for using reasonable volume
To improve the photocatalysis efficiency of rice titanium dioxide；(2) by polyacrylate hyper-dispersant and compound (A) dispersant by certain
Modifying agent of the ratio compounding mixing as nano-titanium dioxide, can make two kinds of dispersants play collaboration peptizaiton, maximum limit
Degree improves the dispersion effect of the nano-titanium dioxide of nitrogen europium ytterbium doping.
Further, the nitrogen europium ytterbium co-doped nano titanium dioxide for the modified processing being prepared in embodiment 2 will be prepared
Titanium is used to prepare the strainer of air assembly, and specific technical solution is referring to embodiment 1.
Embodiment 1
A kind of strainer for efficiency air cleaning device, which is characterized in that the preparation process of the strainer includes as follows
Step：
S1 bonds to form adsorption layer using neoprene in supporter nonwoven surface；
S2 obtains activated carbon composite carrier in the active carbon layer of absorption layer surface sprinkling thickness about 1~5mm；
The nano-titanium dioxide that grain size is 10-100nm is dispersed in water by S3, obtains aggregate slurry, activated carbon is answered
It closes carrier to disseminate 3 times in aggregate slurry, dry, finally obtain the strainer that activated carbon surface has nano-titanium dioxide；
Wherein, titanium dioxide is that the nitrogen europium ytterbium codope for the modified processing for preparing to be prepared in embodiment 2 is received in S3
Rice titanium dioxide.
Comparative example 1
A kind of strainer for efficiency air cleaning device, which is characterized in that the preparation process of the strainer includes as follows
Step：
S1 bonds to form adsorption layer using neoprene in supporter nonwoven surface；
S2 obtains activated carbon composite carrier in the active carbon layer of absorption layer surface sprinkling thickness about 1~5mm；
The nano-titanium dioxide that grain size is 10-100nm is dispersed in water by S3, obtains aggregate slurry, activated carbon is answered
It closes carrier to disseminate 3 times in aggregate slurry, dry, finally obtain the strainer that activated carbon surface has nano-titanium dioxide；
Wherein, titanium dioxide is commercially available common undoped with unmodified nano-titanium dioxide in S3.
Clean-up effect detects：In order to detect the clean-up effect of embodiment 1 and comparative example 1, the present invention is using in certain time
For (60min, 120min, 240min) interior formaldehyde removal efficiency as monitor control index, testing result is shown in Table 3.
Table 3
The above results show compared to common nano-titanium dioxide, using the nitrogen europium ytterbium co-doped nano of modified processing
Titanium dioxide and the compound air purification efficiency that air cleaning unit can be significantly improved as strainer of activated carbon, the reason is that through
There is the nitrogen europium ytterbium coblended nano TiO 2 of modification higher light to urge efficiency.
Claims (6)
1. a kind of strainer for efficiency air cleaning device, which is characterized in that the preparation process of the strainer includes following step
Suddenly：
S1 bonds to form adsorption layer using neoprene in supporter nonwoven surface；
S2 obtains activated carbon composite carrier in the active carbon layer of absorption layer surface sprinkling thickness about 1~5mm；
The nano-titanium dioxide that grain size is 10-100nm is dispersed in water by S3, aggregate slurry is obtained, by the compound load of activated carbon
Body is disseminated 2~4 times in aggregate slurry, drying, finally obtains the strainer that activated carbon surface has nano-titanium dioxide；
Wherein, in S3 titanium dioxide be modified processing nitrogen europium ytterbium coblended nano TiO 2.
2. the strainer according to claim 1 for efficiency air cleaning device, which is characterized in that the modified processing
The preparation process of nitrogen europium ytterbium coblended nano TiO 2 include the following steps：
(1) preparation of solution A:The butyl titanate for measuring 20~40mL is added in 30~60mL absolute ethyl alcohols, through electromagnetic agitation；
(2) preparation of solution B:By a certain amount of triethylamine, the concentrated nitric acid, a certain amount of of 10~20mL distilled water, 0.30~1mL
Yb(NO3)3·5H2O and a certain amount of Eu (NO3)3·6H2O is added in 10~20mL absolute ethyl alcohols；Wherein, triethanolamine adds
Enter amount by N element and TiO2Molar ratio be 0.5%~2.5% calculate；Yb(NO3)3·5H2The addition of O by Yb elements with
TiO2Molar ratio be 1.5%~2.5% calculate；Eu(NO3)3·6H2The addition of O presses Eu elements and TiO2Molar ratio be
1.0%~2.0% calculates；
(3) solution A is added dropwise in solution B under being stirred by ultrasonic, continues to stir, obtains uniform colloidal sol, stood under room temperature
For 24 hours~48h, then be dried in vacuo in vacuum drying chamber, grind into powder, through calcination processing, obtain nitrogen europium ytterbium co-doped nano
Titanium dioxide；
(4) the nitrogen europium ytterbium coblended nano TiO 2 that step (3) obtains is added in modifying agent and is modified processing, and
Ultrasonic agitation processing is carried out in modifying process, through being dried to get to the nanometer two of the nitrogen europium ytterbium codope of modified processing
Titanium oxide；Wherein, the mass ratio of nitrogen europium ytterbium coblended nano TiO 2 and modifying agent is 1~10:50；
The modifying agent is that polyacrylate hyper-dispersant and compound (A) are 1 in mass ratio：2~6 compounding mixing；Wherein,
The structural formula of the compound (A) is
3. the strainer according to claim 2 for efficiency air cleaning device, which is characterized in that described in step (1)
The electromagnetic agitation time is 20min~60min.
4. the strainer according to claim 2 for efficiency air cleaning device, which is characterized in that described in step (3)
Vacuum drying temperature is 80~120 DEG C.
5. the strainer according to claim 2 for efficiency air cleaning device, which is characterized in that described in step (3)
Vacuum drying time is 20~60min.
6. the strainer according to claim 2 for efficiency air cleaning device, which is characterized in that described in step (3)
The temperature of calcining is 500~700 DEG C.
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