CN108889340A - A kind of catalytic degradation vehicle exhaust type asphalt preparation method - Google Patents
A kind of catalytic degradation vehicle exhaust type asphalt preparation method Download PDFInfo
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- CN108889340A CN108889340A CN201810957241.3A CN201810957241A CN108889340A CN 108889340 A CN108889340 A CN 108889340A CN 201810957241 A CN201810957241 A CN 201810957241A CN 108889340 A CN108889340 A CN 108889340A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 29
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 20
- 230000015556 catabolic process Effects 0.000 title claims abstract description 19
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 23
- 239000011425 bamboo Substances 0.000 claims abstract description 18
- 239000003610 charcoal Substances 0.000 claims abstract description 18
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 16
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 16
- 241001330002 Bambuseae Species 0.000 claims abstract description 16
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 claims abstract description 16
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004327 boric acid Substances 0.000 claims abstract description 12
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229960000935 dehydrated alcohol Drugs 0.000 claims abstract description 4
- 229910052796 boron Inorganic materials 0.000 claims description 12
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000012986 modification Methods 0.000 claims description 9
- 230000004048 modification Effects 0.000 claims description 7
- 238000011160 research Methods 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 230000000593 degrading effect Effects 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 239000011941 photocatalyst Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- LCKIEQZJEYYRIY-UHFFFAOYSA-N Titanium ion Chemical compound [Ti+4] LCKIEQZJEYYRIY-UHFFFAOYSA-N 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- 206010013786 Dry skin Diseases 0.000 claims description 2
- -1 boron ion Chemical class 0.000 claims description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 239000003643 water by type Substances 0.000 claims description 2
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 11
- 239000003054 catalyst Substances 0.000 abstract description 6
- 238000007146 photocatalysis Methods 0.000 abstract description 5
- 230000001699 photocatalysis Effects 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract description 2
- 239000012153 distilled water Substances 0.000 abstract description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 abstract description 2
- 238000006555 catalytic reaction Methods 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003504 photosensitizing agent Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012855 volatile organic compound 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/38—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
-
- 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
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
-
- 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
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/19—Catalysts containing parts with different compositions
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/502—Carbon monoxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
-
- 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
- B01D2257/702—Hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/01—Engine exhaust gases
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- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The present invention provides a kind of preparation method of catalytic degradation vehicle exhaust type asphalt, belongs to ground surface material technical field, solves to add inorganic nano TiO directly in asphalt at present2Photochemical catalyst and lead to that dispersion effect is poor, photocatalysis efficiency is low, be easy to run off, influences asphalt routine pavement performance.Bamboo charcoal fiber is boiled first, is cleaned up by the present invention；It respectively takes butyl titanate and boric acid to be dissolved in dehydrated alcohol respectively, hydrochloric acid is added in boric acid solution, butyl titanate is added dropwise in boric acid solution after mixing evenly；Then distilled water and bamboo charcoal fiber is added, gel is made in stirring and ageing；It is calcined and bamboo charcoal fiber load TiO is made2Photochemical catalyst；Finally, being added in asphalt according to different addition quantity, the catalytic degradation effect to tail gas main component is evaluated respectively, determines the optimum mix amount, prepare catalytic degradation vehicle exhaust type asphalt.The present invention improves TiO2Photocatalytic degradation tail gas effect, reducing influences Asphalt Mixture Performance.
Description
Technical field
The present invention is a kind of catalytic degradation vehicle exhaust type asphalt preparation method, belongs to ground surface material technology neck
Domain.
Background technique
The fast development of urban transportation brings great convenience to people's trip, but vehicle exhaust is to urban air environment
Cause serious pollution.It is one of current urgent problem that vehicle exhaust of how effectively degrading, which improves air quality,.
Research shows that the highdensity volume of traffic increases the concentration of oxynitrides and volatile organic compounds in air, to the public's
Health brings serious influence.These pollutants are also possible to cause secondary pollution by migrating for long range, lead to acid rain
Generation and ozone hole formation.
In view of vehicle exhaust is mainly flowed to road surface in discharge process, if catalysis material is added to road surface material
In material, vehicle exhaust can be converted into harmless substance by the effect of catalysis material, to realize degradation vapour
The purpose of tail gas.Therefore, the asphalt that preparation can be used for catalytic degradation vehicle exhaust has become a kind of feasible side
Method.
Photocatalysis technology is Solar use, one of method of great application potential in the depollution of environment.TiO2Semiconductor tool
Have the advantages that nontoxic, cheap, efficient, stable, but its forbidden bandwidth is 3.2eV, is only capable of using the ultraviolet light in sunlight, this limit
Its extensive use is made.Therefore, modification and modified TiO2Making it have visible light activity becomes the research hotspot of photocatalysis field.
Studies have shown that TiO can be made using means such as noble metal loading, ion doping, semiconductors coupling and photosensitizers2Photoresponse
Wavelength is expanded to visible region, and improves TiO to some extent2Visible light catalysis activity.By TiO2Being carried on carrier is to solve
Photochemical catalyst is easy to run off, improves the effective way that photochemical catalyst absorbs pollutant ability.TiO2Composite carrier is in recent years
To improve TiO2Photocatalytic activity and the new method proposed, this method mainly utilize carrier material strong adsorption, specific surface
Product big, nontoxic and corrosion resistance it is strong the advantages that, with bentonite, baby's diatomaceous earth, new carbon etc. be carrier material form it is compound
System.
Fiber is as a kind of high-strength, durable, light reinforcing material, due to that can greatly improve the mechanical property of bituminous pavement
Can and it prolong its service life and more and more be applied.The addition of fiber can be played microcosmic while adsorptive pitch
The effect of reinforcement.Existing engineering practice shows that the addition of road fiber can be improved the cracking resistance of bituminous concrete and resist
Deformability, this excellent performance that can be effectively improved bituminous pavement high-temperature stability, fatigue durability and anti-low-temperature cracking,
So that the application prospect of fiber and steel bar reinforced mixture is more extensive.
Existing research at present determines nanoscale catalysis material TiO not yet2Effective method of modifying, and how to pass through
Effective carrying method plays the synergistic effect of support materials and catalysis material, is catalyzed while reaching absorption pollutant
The purpose of degradation reaction needs to be further studied.Therefore, the modified TiO of bamboo charcoal fiber material load is selected2, on the one hand realize
On the other hand bituminous pavement catalytic degradation automobile exhaust pollutant improves the practical performance of asphalt, have preferable real
With value and research significance.
Summary of the invention
(1) technical problem
It is an object of the present invention to provide a kind of preparation methods of catalytic degradation vehicle exhaust type asphalt, solve straight at present
Meet the admixture inorganic nano TiO in asphalt2Photochemical catalyst and cause dispersion effect is poor, photocatalysis efficiency is low, be easy to run off,
The problems such as influencing asphalt routine pavement performance, is reduced mixed to pitch to improve photocatalytic degradation vehicle exhaust effect
Close the influence for expecting conventional pavement performance.
(2) technical solution
Due to nano-TiO2Partial size it is very small, be easy to happen reunion, the problems such as contact area is small, and under normal conditions,
The TiO of micron, Nano grade2When admixture dosage is higher, ductility can be declined, and the present invention first boils bamboo charcoal fiber,
Dust and surface residues are removed with deionized water, it is 6 hours dry；Butyl titanate and boric acid is respectively taken to distinguish in two beakers molten
In dehydrated alcohol, make boron ion and the molar ratio of titanium ion 1: 20,1 milliliter of hydrochloric acid is added in boric acid solution, stirring is equal
After even, butyl titanate is added dropwise in boric acid solution, after being added dropwise, continues to stir；Then distilled water and spare is added
Bamboo charcoal fiber, form colloidal sol after stirring, be aged and gel is made；By gel box drying to constant weight, calcined 2 hours at 400 DEG C,
The nano-TiO of bamboo charcoal fiber load boron modification is made2Photochemical catalyst；Secondly, load boron modification nano-TiO2Fiber is according to difference
Volume is respectively added in asphalt, determines that gradation and asphalt content prepare asphalt according to mix-design；Most
Afterwards, it using the automobile exhaust degrading test macro of independent research, detects, evaluated to tail hydrocarbon in gas, nitrogen oxidation respectively
Close object, carbon monoxide, four kinds of main components of carbon dioxide catalytic degradation effect, determine load boron modification nano-TiO2Fiber
The optimum mix amount prepares catalytic degradation vehicle exhaust type asphalt.
(3) beneficial effect
Catalysis material nano-TiO2Carrying method can solve TiO2Easy to reunite, the problems such as contact area is small, or system
Standby composite material is to improve reactivity worth, and relevant test result also indicates that, TiO2Can have with the synergistic effect of support materials
Effect improves reactivity, achievees the purpose that vehicle exhaust of effectively degrading.The addition of fiber can be played while adsorptive pitch
The effect of microcosmic reinforcement improves the pavement performance of bituminous pavement.It is provided by the invention using bamboo charcoal fiber as carrier, be based on it
Stronger absorption property and reinforced action are improving TiO2While volume, enhance its photo-catalysis capability, plays the collaboration of the two
Effect, preparation degradation vehicle exhaust type asphalt, reduces automobile exhaust pollution, improves air quality.
Specific embodiment
The present invention provides a kind of preparation method of catalytic degradation vehicle exhaust type asphalt, and specific implementation step is such as
Under：
(1) be 10 microns by diameter, length is that 6 millimeters of bamboo charcoal fibers boil, cleaned 3 times with deionized water, remove dust
And surface impurity, at 100 DEG C dry 6 hours it is spare；
(2) it respectively takes 15 milliliters of butyl titanates and 3.2 milliliters of boric acid to be dissolved in dehydrated alcohol in two beakers respectively, makes boron
The molar ratio of ion and titanium ion is 1: 20；
(3) 1 milliliter of hydrochloric acid is added in boric acid solution, stirs evenly, butyl titanate is added dropwise in boric acid solution, to
After being added dropwise, continue stirring 15 minutes；
(4) 4 ml deionized waters and 30 grams of spare bamboo charcoal fibers are added, stirring formed colloidal sol after 30 minutes, at room temperature
Gel is made in ageing 24 hours；
(5) gel is placed on 100 DEG C of thermostatic drying chambers dryings 12 hours, is calcined 2 hours at 400 DEG C, it is fine that bamboo charcoal is made
The nano-TiO of dimension load boron modification2Composite photo-catalyst；
(6) load boron modification nano-TiO2Bamboo charcoal fiber be respectively added in asphalt according to different addition quantity,
The gradation and asphalt content determined according to mix-design prepares asphalt；
(7) the automobile exhaust degrading test macro for using independent research is detected respectively, is evaluated to nytron in tail gas
Object, oxynitrides, carbon monoxide, four kinds of main components of carbon dioxide catalytic degradation effect, determine bamboo charcoal fiber load boron
Modified nano-TiO2The optimum mix amount of composite photo-catalyst prepares catalytic degradation vehicle exhaust type asphalt.
Claims (1)
1. a kind of preparation method of catalytic degradation vehicle exhaust type asphalt, it is characterised in that the specific steps of this method are such as
Under：
(1) be 10 microns by diameter, length is that 6 millimeters of bamboo charcoal fibers boil, and is cleaned 3 times with deionized water, remove dust and table
Face impurity, at 100 DEG C dry 6 hours it is spare；
(2) it respectively takes 15 milliliters of butyl titanates and 3.2 milliliters of boric acid to be dissolved in dehydrated alcohol in two beakers respectively, makes boron ion
Molar ratio with titanium ion is 1: 20；
(3) 1 milliliter of hydrochloric acid is added in boric acid solution, stirs evenly, butyl titanate is added dropwise in boric acid solution, wait is added dropwise
After, continue stirring 15 minutes；
(4) 4 ml deionized waters and 30 grams of spare bamboo charcoal fibers are added, stirring forms colloidal sol after 30 minutes, is aged at room temperature
24 hours, gel is made；
(5) gel is placed on 100 DEG C of thermostatic drying chambers dryings 12 hours, is calcined 2 hours at 400 DEG C, it is negative that bamboo charcoal fiber is made
Carry the nano-TiO of boron modification2Composite photo-catalyst；
(6) load boron modification nano-TiO2Bamboo charcoal fiber be respectively added in asphalt according to different addition quantity, according to matching
Composition and division in a proportion design determining gradation and asphalt content prepare asphalt；
(7) the automobile exhaust degrading test macro for using independent research is detected respectively, is evaluated to tail hydrocarbon in gas, nitrogen
Oxygen compound, carbon monoxide, carbon dioxide four kinds of main components catalytic degradation effect, determine bamboo charcoal fiber load boron modification
Nano-TiO2The optimum mix amount of composite photo-catalyst prepares catalytic degradation vehicle exhaust type asphalt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810957241.3A CN108889340A (en) | 2018-08-16 | 2018-08-16 | A kind of catalytic degradation vehicle exhaust type asphalt preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810957241.3A CN108889340A (en) | 2018-08-16 | 2018-08-16 | A kind of catalytic degradation vehicle exhaust type asphalt preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111689719A (en) * | 2020-06-19 | 2020-09-22 | 广东水电二局股份有限公司 | Basalt fiber reinforced asphalt concrete and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537355A (en) * | 2009-02-27 | 2009-09-23 | 四川农业大学 | Activated carbon fiber-loaded iron doped titanium dioxide photocatalyst and preparation method thereof |
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