CN108889318A - Composite photocatalyst material of Degradation Formaldehyde and preparation method thereof - Google Patents
Composite photocatalyst material of Degradation Formaldehyde and preparation method thereof Download PDFInfo
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- CN108889318A CN108889318A CN201810682604.7A CN201810682604A CN108889318A CN 108889318 A CN108889318 A CN 108889318A CN 201810682604 A CN201810682604 A CN 201810682604A CN 108889318 A CN108889318 A CN 108889318A
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- composite photocatalyst
- titanium dioxide
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 239000002131 composite material Substances 0.000 title claims abstract description 52
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 title claims abstract description 35
- 230000015556 catabolic process Effects 0.000 title claims abstract description 34
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 34
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 33
- 239000004917 carbon fiber Substances 0.000 claims abstract description 32
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000725 suspension Substances 0.000 claims abstract description 28
- 239000011230 binding agent Substances 0.000 claims abstract description 24
- 238000005470 impregnation Methods 0.000 claims abstract description 24
- 238000001035 drying Methods 0.000 claims abstract description 20
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 16
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 12
- 238000009987 spinning Methods 0.000 claims description 12
- 235000012489 doughnuts Nutrition 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 10
- 235000011007 phosphoric acid Nutrition 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 7
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 7
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 claims description 6
- 239000003929 acidic solution Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- XONPDZSGENTBNJ-UHFFFAOYSA-N molecular hydrogen;sodium Chemical compound [Na].[H][H] XONPDZSGENTBNJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 6
- 229910000059 tellane Inorganic materials 0.000 claims description 6
- 206010013786 Dry skin Diseases 0.000 claims description 5
- 238000013019 agitation Methods 0.000 claims description 5
- 239000012670 alkaline solution Substances 0.000 claims description 5
- LHQLJMJLROMYRN-UHFFFAOYSA-L cadmium acetate Chemical compound [Cd+2].CC([O-])=O.CC([O-])=O LHQLJMJLROMYRN-UHFFFAOYSA-L 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000010382 chemical cross-linking Methods 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 2
- 239000010936 titanium Substances 0.000 claims 2
- 229910052719 titanium Inorganic materials 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 239000003513 alkali Substances 0.000 claims 1
- 229910052793 cadmium Inorganic materials 0.000 claims 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 239000012510 hollow fiber Substances 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 238000000354 decomposition reaction Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- 230000001699 photocatalysis Effects 0.000 description 4
- 229930040373 Paraformaldehyde Natural products 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229920002866 paraformaldehyde Polymers 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910001868 water Inorganic materials 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 231100001240 inorganic pollutant Toxicity 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/057—Selenium or tellurium; Compounds thereof
- B01J27/0576—Tellurium; Compounds thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/007—Separation 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 by irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- B01J35/39—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/704—Solvents not covered by groups B01D2257/702 - B01D2257/7027
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Abstract
This application discloses composite photocatalyst material of a kind of Degradation Formaldehyde and preparation method thereof, this method includes：Prepare titanium dioxide composite photocatalyst suspension；Prepare hollow carbon fiber carrier；Prepare binder；By hollow carbon fiber carrier impregnation 3~8min in a binder, in 90~100 DEG C of dry 10~30min after then lifting comes out；Continue the 30~60min in titanium dioxide composite photocatalyst suspension of the hollow carbon fiber carrier impregnation after drying, in 90~110 DEG C of dry 90~120min after lifting out；Continue the 5~20min in titanium dioxide composite photocatalyst suspension of the hollow carbon fiber carrier impregnation after drying, in 90~110 DEG C of dry 60~80min after lifting out, obtains composite photocatalyst material.Its Formaldehyde decomposition speed of material of the invention is fast, and degradation rate is high, and formaldehyde gas degradation rate can reach 93%.
Description
Technical field
This application involves technical field of air purification, a kind of composite photocatalyst material more particularly to Degradation Formaldehyde and its
Preparation method.
Background technique
Studies have shown that photocatalysis technology has good application prospect photochemical catalyst that can divide in terms of environmental pollution improvement
It dissipates and light catalyzed coating is made in resin, can not only make coating that there is excellent performance, can also be effectively reduced in environment dirty
The concentration of metachromia gas makes organic or inorganic pollutant that redox reaction occur under photocatalysis, generates H2O、CO2And
The substances such as salt reach innoxious, thus environment purification.
Titanium dioxide (TiO2), photon can be captured and realize separation of charge, be most common catalysis material.Such nothing
The photocatalytic process of machine semiconductor light-catalyst be by light excitation generate electrons and holes, respectively be adsorbed onto catalyst
The species on surface occur reduction and oxidation reaction and realize.But its photochemical catalyst powder faces photocatalysis in application process
The problems such as low efficiency and low adsorbance.
Summary of the invention
The purpose of the present invention is to provide composite photocatalyst materials of a kind of Degradation Formaldehyde and preparation method thereof, existing to overcome
There is the deficiency in technology.
To achieve the above object, the present invention provides the following technical solutions：
The embodiment of the present application discloses a kind of composite photocatalyst material of Degradation Formaldehyde, including carrier and is successively carried on
The binder and photochemical catalyst of carrier surface,
The carrier is hollow carbon fiber carrier,
The photochemical catalyst is titanium dioxide.
Preferably, in the composite photocatalyst material of above-mentioned Degradation Formaldehyde, the binder is AlPO4。
Disclosed herein as well is a kind of preparation methods of the composite photocatalyst material of Degradation Formaldehyde, including：
Prepare titanium dioxide composite photocatalyst suspension；
Prepare hollow carbon fiber carrier；
Prepare binder；
By hollow carbon fiber carrier impregnation 3~8min in a binder, at 90~100 DEG C dry 10 after then lifting comes out
~30min；Continue the hollow carbon fiber carrier impregnation after drying 30 in titanium dioxide composite photocatalyst suspension~
60min, in 90~110 DEG C of dry 90~120min after lifting out；Continue the hollow carbon fiber carrier impregnation after drying to exist
5~20min in titanium dioxide composite photocatalyst suspension is obtained in 90~110 DEG C of dry 60~80min after lifting out
Composite photocatalyst material.
Preferably, in the preparation method of the composite photocatalyst material of above-mentioned Degradation Formaldehyde, titanium dioxide complex light is urged
The concentration of agent suspension is 4%~7%.
Preferably, in the preparation method of the composite photocatalyst material of above-mentioned Degradation Formaldehyde, titanium dioxide complex light is urged
The preparation of agent suspension includes：Under normal temperature conditions, by the sodium hydrogen telluride of 35~50 parts by weight, 160~210 parts by weight two
Titanium oxide is add to deionized water, 10~20min of magnetic agitation；Then the cadmium acetate of 70~80 parts by weight of addition, 35~50
10~20min of mercaptopropionic acid ultrasonic disperse of parts by weight.
Preferably, in the preparation method of the composite photocatalyst material of above-mentioned Degradation Formaldehyde, hollow carbon fiber carrier
Preparation includes：Under 370~450 DEG C of hot conditions, spinning is carried out to polyacrylonitrile by spinning machine, obtains doughnut, so
Afterwards in chemical crosslinking device, oxygen, which is added, makes it react 20~30min at 50~60 DEG C, washs, removes to doughnut
The impurity on surface is removed, then first impregnates 8~15min in an acidic solution, washs to neutrality, then proceedes to soak in alkaline solution
10~20min is steeped, washs to neutrality, is then carbonized 1~3 hour in 2500~2800 DEG C of graphitizing furnace.
Preferably, in the preparation method of the composite photocatalyst material of above-mentioned Degradation Formaldehyde, the preparation of binder includes：
The aluminium hydroxide of 40 parts by weight is added in orthophosphoric acid extremely, 70 DEG C~85 DEG C is heated to, is obtained after being stirred 10~30min
Binder.
Preferably, in the preparation method of the composite photocatalyst material of above-mentioned Degradation Formaldehyde, ortho-phosphoric mass fraction
It is 85%.
Disclosed herein as well is a kind of preparation methods of the composite photocatalyst material of Degradation Formaldehyde, including：
(1), the titanium dioxide of the sodium hydrogen telluride of 40 parts by weight, 200 parts by weight under normal temperature conditions, is added to deionization
In water, magnetic agitation 20min；Then the cadmium acetate of 80 parts by weight, the mercaptopropionic acid ultrasonic disperse 10min of 50 parts by weight is added,
Mass concentration is obtained in 6% titanium dioxide composite photocatalyst suspension；
(2), under 400 DEG C of hot conditions, spinning is carried out to polyacrylonitrile by spinning machine, obtains doughnut, then
In chemical crosslinking device, oxygen, which is added, makes it react 30min at 60 DEG C, washs to doughnut, removes the miscellaneous of surface
Then matter first impregnates 10min in an acidic solution, washing to neutrality then proceedes to impregnate 10min in alkaline solution, washs
It to neutrality, is then carbonized 2 hours in 2600 DEG C of graphitizing furnace, obtains hollow carbon fiber carrier；
(3), aluminium hydroxide being added into orthophosphoric acid, ortho-phosphoric mass fraction is 85%, 70 DEG C~85 DEG C are heated to,
Binder is obtained after being stirred 20min；
(4), by hollow carbon fiber carrier impregnation 5min in a binder, in 90~100 DEG C of dryings after then lifting comes out
10min；Continue the 40min in titanium dioxide composite photocatalyst suspension of the hollow carbon fiber carrier impregnation after drying, mentions
In 110 DEG C of dry 120min after pulling out；Continue the hollow carbon fiber carrier impregnation after drying to urge in titanium dioxide complex light
10min in agent suspension obtains composite photocatalyst material in 110 DEG C of dry 70min after lifting out.
Compared with the prior art, the advantages of the present invention are as follows：Its Formaldehyde decomposition speed of material of the invention is fast, and degradation rate
Height, formaldehyde gas degradation rate can reach 93%.
Specific embodiment
The present invention is described further by the following example：According to following embodiments, the present invention may be better understood.
However, as it will be easily appreciated by one skilled in the art that specific material ratio, process conditions and its result described in embodiment are only used
In illustrating the present invention, without the present invention described in detail in claims should will not be limited.
Embodiment 1
Under normal temperature conditions, the titanium dioxide of the sodium hydrogen telluride of 40mg, 200mg are add to deionized water, magnetic force stirs
Mix 20min；Then the cadmium acetate of 80mg, the mercaptopropionic acid ultrasonic disperse 10min of 50mg is added, obtains mass concentration 6% 2
Titanium oxide composite photo-catalyst suspension.
Under 400 DEG C of hot conditions, spinning is carried out to polyacrylonitrile by spinning machine, doughnut is obtained, is then changing
It learns in crosslinking device, oxygen, which is added, makes it react 30min at 60 DEG C.Doughnut is washed, removes the impurity on surface, so
First impregnate 10min in an acidic solution afterwards, washing to neutrality then proceedes to impregnate 10min in alkaline solution, washs into
Property, it is then carbonized 2 hours in 2600 DEG C of graphitizing furnace, obtains hollow carbon fiber carrier.
The aluminium hydroxide of 40mg is added into the orthophosphoric acid of 100mL, ortho-phosphoric mass fraction is 85%, is heated to 70
DEG C~85 DEG C, binder is obtained after being stirred 20min.
By hollow carbon fiber carrier impregnation 5min in a binder, in 90~100 DEG C of dryings after then lifting comes out
10min；Continue the 40min in titanium dioxide composite photocatalyst suspension of the hollow carbon fiber carrier impregnation after drying, mentions
In 110 DEG C of dry 120min after pulling out；Continue the hollow carbon fiber carrier impregnation after drying to urge in titanium dioxide complex light
10min in agent suspension obtains composite photocatalyst material in 110 DEG C of dry 70min after lifting out.
Degradation test is carried out in closed space PARA FORMALDEHYDE PRILLS(91,95), controls 22 DEG C of environment temperature, gas flow rate 1.5m/s, environment phase
To humidity 45%, initial concentration of formaldehyde 5mg/m3.It can be found that：
Concentration of formaldehyde is stablized after 60min, and formaldehyde gas degradation rate reaches 93%.
Comparative example 1
Under normal temperature conditions, the titanium dioxide of 200mg is add to deionized water, magnetic agitation 20min；Obtain quality
Concentration is in 6% titanium dioxide optical catalyst suspension.
Under 400 DEG C of hot conditions, spinning is carried out to polyacrylonitrile by spinning machine, doughnut is obtained, is then changing
It learns in crosslinking device, oxygen, which is added, makes it react 30min at 60 DEG C.Doughnut is washed, removes the impurity on surface, so
First impregnate 10min in an acidic solution afterwards, washing to neutrality then proceedes to impregnate 10min in alkaline solution, washs into
Property, it is then carbonized 2 hours in 2600 DEG C of graphitizing furnace, obtains hollow carbon fiber carrier.
The aluminium hydroxide of 40mg is added into the orthophosphoric acid of 100mL, ortho-phosphoric mass fraction is 85%, is heated to 70
DEG C~85 DEG C, binder is obtained after being stirred 20min.
By hollow carbon fiber carrier impregnation 5min in a binder, in 90~100 DEG C of dryings after then lifting comes out
10min；Continue the 40min in titanium dioxide optical catalyst suspension of the hollow carbon fiber carrier impregnation after drying, lifts out
In 110 DEG C of dry 120min after coming；Continue the hollow carbon fiber carrier impregnation after drying in titanium dioxide composite photocatalyst
10min in suspension obtains composite photocatalyst material in 110 DEG C of dry 70min after lifting out.
Degradation test is carried out in closed space PARA FORMALDEHYDE PRILLS(91,95), controls 22 DEG C of environment temperature, gas flow rate 1.5m/s, environment phase
To humidity 45%, initial concentration of formaldehyde 5mg/m3.It can be found that：
Concentration of formaldehyde is stablized after 100min, and formaldehyde gas degradation rate reaches 84.7%.
Comparative example 2
Under normal temperature conditions, the titanium dioxide of the sodium hydrogen telluride of 40mg, 200mg are add to deionized water, magnetic force stirs
Mix 20min；Then the cadmium acetate of 80mg, the mercaptopropionic acid ultrasonic disperse 10min of 50mg is added, obtains mass concentration 6% 2
Titanium oxide composite photo-catalyst suspension.
Commercially available carbon fiber is provided as carrier (STF-1000T type, Jiangsu Sutong Carbon Fiber Co., Ltd).
The aluminium hydroxide of 40mg is added into the orthophosphoric acid of 100mL, ortho-phosphoric mass fraction is 85%, is heated to 70
DEG C~85 DEG C, binder is obtained after being stirred 20min.
By carrier impregnation 5min in a binder, in 90~100 DEG C of dry 10min after then lifting comes out；Continue to do
Carrier impregnation after the dry 40min in titanium dioxide composite photocatalyst suspension, lifting come out after in 110 DEG C of dryings
120min；Continue the carrier impregnation after drying the 10min in titanium dioxide composite photocatalyst suspension, lifting come out after
110 DEG C of dry 70min obtain composite photocatalyst material.
Degradation test is carried out in closed space PARA FORMALDEHYDE PRILLS(91,95), controls 22 DEG C of environment temperature, gas flow rate 1.5m/s, environment phase
To humidity 45%, initial concentration of formaldehyde 5mg/m3.It can be found that：
Concentration of formaldehyde is stablized after 90min, and formaldehyde gas degradation rate reaches 86.2%.
It is compared with comparative example 1-2 it is found that the Degradation Formaldehyde effect of embodiment 1 is apparently higher than 1 He of documents by embodiment 1
Documents 2.
Finally, it is to be noted that, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.
Claims (9)
1. a kind of composite photocatalyst material of Degradation Formaldehyde, which is characterized in that including carrier and be successively carried on carrier surface
Binder and photochemical catalyst,
The carrier is hollow carbon fiber carrier,
The photochemical catalyst is titanium dioxide.
2. the composite photocatalyst material of Degradation Formaldehyde according to claim 1, which is characterized in that the binder is
AlPO4。
3. a kind of preparation method of the composite photocatalyst material of Degradation Formaldehyde, which is characterized in that including：
Prepare titanium dioxide composite photocatalyst suspension；
Prepare hollow carbon fiber carrier；
Prepare binder；
By hollow carbon fiber carrier impregnation 3~8min in a binder, after then lifting comes out 90~100 DEG C dry 10~
30min；Continue the hollow carbon fiber carrier impregnation after drying 30 in titanium dioxide composite photocatalyst suspension~
60min, in 90~110 DEG C of dry 90~120min after lifting out；Continue the hollow carbon fiber carrier impregnation after drying to exist
5~20min in titanium dioxide composite photocatalyst suspension is obtained in 90~110 DEG C of dry 60~80min after lifting out
Composite photocatalyst material.
4. the preparation method of the composite photocatalyst material of Degradation Formaldehyde according to claim 3, which is characterized in that titanium dioxide
The concentration of titanium composite photo-catalyst suspension is 4%~7%.
5. the preparation method of the composite photocatalyst material of Degradation Formaldehyde according to claim 3, which is characterized in that titanium dioxide
The preparation of titanium composite photo-catalyst suspension includes：Under normal temperature conditions, by the sodium hydrogen telluride of 35~50 parts by weight, 160~210
The titanium dioxide of parts by weight is add to deionized water, 10~20min of magnetic agitation；Then the acetic acid of 70~80 parts by weight is added
10~20min of mercaptopropionic acid ultrasonic disperse of cadmium, 35~50 parts by weight.
6. the preparation method of the composite photocatalyst material of Degradation Formaldehyde according to claim 3, which is characterized in that hollow carbon
The preparation of fiber carrier includes：Under 370~450 DEG C of hot conditions, spinning is carried out to polyacrylonitrile by spinning machine, in acquisition
Hollow fiber, then chemical crosslinking device in, be added oxygen so that it is reacted 20~30min at 50~60 DEG C, to doughnut into
Row washing, removes the impurity on surface, then first impregnates 8~15min in an acidic solution, washs to neutrality, then proceedes in alkali
Property solution in impregnate 10~20min, wash to neutrality, be then carbonized 1~3 hour in 2500~2800 DEG C of graphitizing furnace.
7. the preparation method of the composite photocatalyst material of Degradation Formaldehyde according to claim 3, which is characterized in that binder
Preparation include：The aluminium hydroxide of 40 parts by weight is added in orthophosphoric acid extremely, is heated to 70 DEG C~85 DEG C, it is stirred 10~
Binder is obtained after 30min.
8. the preparation method of the composite photocatalyst material of Degradation Formaldehyde according to claim 7, which is characterized in that orthophosphoric acid
Mass fraction be 85%.
9. a kind of preparation method of the composite photocatalyst material of Degradation Formaldehyde, which is characterized in that including：
(1), the titanium dioxide of the sodium hydrogen telluride of 40 parts by weight, 200 parts by weight under normal temperature conditions, is added to deionized water
In, magnetic agitation 20min；Then the cadmium acetate of 80 parts by weight, the mercaptopropionic acid ultrasonic disperse 10min of 50 parts by weight is added, obtains
Mass concentration is obtained in 6% titanium dioxide composite photocatalyst suspension；
(2), under 400 DEG C of hot conditions, spinning is carried out to polyacrylonitrile by spinning machine, doughnut is obtained, is then changing
It learns in crosslinking device, oxygen, which is added, makes it react 30min at 60 DEG C, washs to doughnut, removes the impurity on surface, so
First impregnate 10min in an acidic solution afterwards, washing to neutrality then proceedes to impregnate 10min in alkaline solution, washs into
Property, it is then carbonized 2 hours in 2600 DEG C of graphitizing furnace, obtains hollow carbon fiber carrier；
(3), aluminium hydroxide is added into orthophosphoric acid, ortho-phosphoric mass fraction is 85%, is heated to 70 DEG C~85 DEG C, stirring
Binder is obtained after mixing 20min；
(4), by hollow carbon fiber carrier impregnation 5min in a binder, in 90~100 DEG C of dryings after then lifting comes out
10min；Continue the 40min in titanium dioxide composite photocatalyst suspension of the hollow carbon fiber carrier impregnation after drying, mentions
In 110 DEG C of dry 120min after pulling out；Continue the hollow carbon fiber carrier impregnation after drying to urge in titanium dioxide complex light
10min in agent suspension obtains composite photocatalyst material in 110 DEG C of dry 70min after lifting out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810682604.7A CN108889318A (en) | 2018-06-27 | 2018-06-27 | Composite photocatalyst material of Degradation Formaldehyde and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810682604.7A CN108889318A (en) | 2018-06-27 | 2018-06-27 | Composite photocatalyst material of Degradation Formaldehyde and preparation method thereof |
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| CN108889318A true CN108889318A (en) | 2018-11-27 |
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Cited By (4)
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| CN111644052A (en) * | 2020-05-06 | 2020-09-11 | 江苏卓高环保科技有限公司 | Novel high-efficiency catalytic formaldehyde material and digital display formaldehyde purifier prepared from same |
| CN114522666A (en) * | 2022-02-17 | 2022-05-24 | 哈尔滨悟山青环保科技有限公司 | Preparation method of multistage porous carbon fiber cloth integrating adsorption and degradation of formaldehyde |
| CN114939398A (en) * | 2022-04-18 | 2022-08-26 | 浙江理工大学 | Preparation method of composite rush fiber material for removing formaldehyde |
| CN115090310A (en) * | 2022-07-09 | 2022-09-23 | 河南应用技术职业学院 | Dual-functional composite material for disinfection and formaldehyde removal, preparation method thereof, photocatalytic tube for gas purification and gas purification device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111644052A (en) * | 2020-05-06 | 2020-09-11 | 江苏卓高环保科技有限公司 | Novel high-efficiency catalytic formaldehyde material and digital display formaldehyde purifier prepared from same |
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| CN115090310A (en) * | 2022-07-09 | 2022-09-23 | 河南应用技术职业学院 | Dual-functional composite material for disinfection and formaldehyde removal, preparation method thereof, photocatalytic tube for gas purification and gas purification device |
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Application publication date: 20181127 |