CN108341628A - A kind of preparation method of the photocatalysis gunite coating based on nano modification haydite - Google Patents
A kind of preparation method of the photocatalysis gunite coating based on nano modification haydite Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
- C04B20/1066—Oxides, Hydroxides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
- C04B2111/00155—Sprayable, i.e. concrete-like, materials able to be shaped by spraying instead of by casting, e.g. gunite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0081—Uses not provided for elsewhere in C04B2111/00 as catalysts or catalyst carriers
- C04B2111/00827—Photocatalysts
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Abstract
Proposed by the present invention is a kind of preparation method of the photocatalysis gunite coating based on nano modification haydite, and this method comprises the following steps：（1）It is prepared by light porous haydite；（2）It is prepared by nano-photocatalyst colloidal sol；（3）It is prepared by nano modification haydite；（4）Concrete spraying is prepared using nano modification haydite as lightweight aggregate；（5）Building surface sprays；（6）Photocatalysis gunite coating cures.Nano modification haydite is bonded because its is Lightness in gunite coating surface aggregation, improves exposed area, reactivity and the fixed intensity of photochemical catalyst；The strong adsorptivity of porous ceramic grain is conducive to concentrate pollutant in coating surface, enhances nano-photo catalytic degradation efficiency, ensures high efficiency, stability, persistence and the economy of pollutant removal.
Description
Technical field
The present invention relates to a kind of preparation methods of the photocatalysis gunite coating based on nano modification haydite, belong to net dirt
Technical field of material.
Background technology
Photocatalysis oxidation technique is because with the efficient, rapid reaction to contaminant degradation, low energy consumption, non-secondary pollution, fits
The advantages that wide with range, has been widely used in polluting environmental improvement and repairing；And in water pollution reparation, photochemical catalytic oxidation
The application of technology is restricted due to powdered photochemical catalyst difficulty recycles, easily broken up the problems such as by flowing water；To give full play to nanometer
Nano-photocatalyst is carried on some carrier materials by chemical consumption of the photochemical catalyst to pollutant in water body, Many researchers
On material (such as activated carbon, zeolite, glass) or by mixing to be made after environmentally friendly brick and being applied again in directly；However, negative in material
Carry or it is interior mix in preparation process, most of nano-photocatalyst is easily sealed up for safekeeping in support material internal, is difficult to surface exposure, is difficult to
By the photo-induced reaction of the sun, it is greatly reduced to the utilization and photocatalysis of solar energy dirty efficiency only.
In recent years, people attempt nano-photocatalyst being applied directly to surfaces of carrier materials, or are made on support carrier
Make photocatalytic functional coatings.As number of patent application CN201710253737.8 disclose it is a kind of using concrete as the visible light of matrix
Cast concrete base is directly immersed in nano-photo catalytic dispersion liquid by catalyst coatings and preparation method thereof；Light prepared by the above method
Catalyst coatings easily fall off in practical applications inactivation, be difficult to stablize that fixed, service life is very short, dirty efficiency is not yet only for photocatalysis
Stablize；For another example number of patent application CN201710108155.0 discloses a kind of visible light-responded photocatalysis porous brick, by dividing
Prepared by layer is solidificated in nano-photocatalyst concentration in the cement photocatalysis layer of top, but the technology there are production process cumbersome, mistake
Journey is complicated, cost of manufacture is high, the problems such as being difficult to promote and apply on a large scale in practical architectural engineering；Therefore, it is a kind of that there is an urgent need for research and development
Nano-photocatalyst surface exposed area is big, degradation efficiency is high, not easily run off fall off, implement it is simple and convenient, cheap, easily push away
The building surface photocatalytic functional coatings technology of preparing extensively applied.
Invention content
The present invention relates to a kind of preparation method of the photocatalysis gunite coating based on nano modification haydite, purpose purports
Provide a kind of photocatalysis only dirty stability and high efficiency, photochemical catalyst attachment is tightly combined, engineering construction is simple, it is cheap, can be big
The building surface photocatalysis gunite coating production method that scale promotes and applies.
Technical solution of the invention：A kind of preparation method of the photocatalysis gunite coating based on nano modification haydite,
This method comprises the following steps：
（1）It is prepared by light porous haydite；
（2）It is prepared by nano-photocatalyst colloidal sol；
（3）It is prepared by nano modification haydite；
（4）Concrete spraying is prepared using nano modification haydite as lightweight aggregate；
（5）Building surface sprays；
（6）Photocatalysis gunite coating cures.
Nano modification haydite is bonded because its is Lightness in gunite coating surface aggregation, improves the exposure of photochemical catalyst
Product, reactivity and fixed intensity, nano-photocatalyst loss not easily to fall off；The strong adsorptivity of porous ceramic grain is conducive to pollute
Object is concentrated in coating surface, is enhanced nano-photo catalytic degradation efficiency, is ensured the high efficiency, stability, persistence of pollutant removal
And economy.
Advantages of the present invention：
（1）It is sudden and violent on the surface of gunite coating that nano-photocatalyst can be improved in addition nano modification porcelain granule light weight aggregate in concrete mortar
Show up product and photocatalysis efficiency；
（2）Porous ceramic grain has strong adsorptivity to pollutant in environment, and the concentration of gunite coating surface contaminant can be improved, help
In raising photochemical catalyst to the degradation removal efficiency of pollutant；
（3）Nano-photocatalyst in gunite coating can with porous ceramic grain close attachment, strongly combined, loss not easily to fall off, protect
The persistence and stability of its degradation property are demonstrate,proved；
（4）It can be by contact water body or pollutants in air degradation removal, energy conservation and environmental protection, without secondary dirt by natural light radiation
Dye, and whitewash preparation process it is simple, it is cheap, can large-scale promotion use.
Specific implementation mode
A kind of preparation method of the photocatalysis gunite coating based on nano modification haydite, this method comprises the following steps：
（1）It is prepared by light porous haydite；
（2）It is prepared by nano-photocatalyst colloidal sol；
（3）It is prepared by nano modification haydite；
（4）Concrete spraying is prepared using nano modification haydite as lightweight aggregate；
（5）Building surface sprays；
（6）Photocatalysis gunite coating cures.
The step（1）It is prepared by light porous haydite：The preferred high-temperature sintering process of preparation method, the specific method is as follows：
1）Choose raw material prepared by light porous haydite；
2）The titanium oxide for adding raw material gross weight 0.5%-1% again in the feed be sintering aid, 15%-25% ammonium hydrogen carbonate be hair
Infusion, 55%-65% water be binder, stir evenly, with the porous ceramic grain base that a diameter of 0.5cm-1.2cm is made at globe
Body；
3）By porous ceramic grain green body with 1100 DEG C of sintering 1h in high temperature sintering furnace, it is the light of 2mm-5mm that grain size is made after cooling
Matter porous ceramic grain.
Raw material prepared by the light porous haydite is not limited, and considers the preferred fine coal of solid waste recycling demand
One kind or several in ash, bed mud, activated sludge, rubbish.
The step（2）It is prepared by nano-photocatalyst colloidal sol：To improve nano-photocatalyst to the utilization ratio of luminous energy, receive
Rice photochemical catalyst is preferably to visible light-responded N dopen Nanos TiO2, preparation method preferred sols-gel method, specially：1）It will
Urea is with final concentration of 0.02g ml-1It is dissolved in the ethanol solution that pH is 2（The pH value of ethanol solution is adjusted by hydrochloric acid）, it is denoted as
Solution A；2）By butyl titanate with final concentration of 0.06g ml-1It is dissolved in ethanol solution, is denoted as B solution；3）Solution A is carried out
Stirring, while B solution being added drop-wise to the speed of 120 drops/minute in solution A, it is stirred continuously until to form uniform colloidal sol, that is, makes
At N dopen Nanos TiO2Colloidal sol.
The step（3）It is prepared by nano modification haydite：Preparation method preferably dipping-sintering process, specially by step（1）System
Standby light porous haydite is immersed in step（2）Impregnate 30min-50min in the nano-photocatalyst colloidal sol of preparation, after taking-up
It is baked under the conditions of 100 DEG C until dry, the above-mentioned immersion-of repetition forms the porous of load nano-photocatalyst after baking step 3 time
The porous ceramic grain for loading nano-photocatalyst under the conditions of 300 DEG C -500 DEG C is sintered 2h-3h, can be obtained after cooling by haydite
Nano modification haydite.
The step（4）Concrete spraying is prepared using nano modification haydite as lightweight aggregate：By cement, water, sand, aggregate, water-reducing agent
It is uniformly mixed and whitewashing is made, it is the natural of 0.15mm-4.75mm that wherein cement, which is preferably 42.5 grades of ordinary cements, sand priority is matched
Sand, aggregate are step（3）In nano modification haydite is made, the naphthalene water reducer that the preferred water-reducing rate of water-reducing agent is 20%, powder of whitewashing
Middle cement, water, sand, aggregate, water-reducing agent mixed proportion be preferably（0.6-1.2）：（0.5-1.0）：（1.5-2.2）：（1.5-
2.2）：（0.015-0.025）Weight ratio obtains concrete spraying after being stirred evenly in blender.
The step（5）Building surface sprays：Water spray pretreatment is carried out to hydraulic structure surface first, to wash away table
The floating ash in face simultaneously ensures that spray-coating surface moistens, then by step（4）The concrete prepared as lightweight aggregate using nano modification haydite prepared
The box for feeding odd of refractory gunning equipment is added in whitewashing, and carrying out spraying on hydraulic structure surface by refractory gunning equipment forms coating, whitewashing dress
Preferred concrete shotcrete machine is set, operating pressure is 6 MPa -8MPa, the preferred 0.5cm-0.8cm of nozzle diameter when slurries spray, and is applied
Preferred 1.0cm-the 5cm of layer thickness, distance preferred 30cm -50cm of the nozzle away from building surface when spraying.
The step（6）Photocatalysis gunite coating cures：To ensure the bonding of photocatalysis gunite coating and building material
Intensity improves the stability and persistence of gunite coating, in step（5）Terminate at least to ensure in 1d that slurry surface water spray is protected three times
Wet process, it is to be coated be fully cured it is dry after complete.
Concrete spraying is after building surface spraying, because of the low-density of wherein light porous haydite, Lightness to coating
Apparent motion migration, aggregation bond, and improve exposed area, the light reaction of the nano-photocatalyst that haydite surface is loaded
With fixed intensity, nano-photocatalyst loss not easily to fall off；In addition, the strong adsorptivity of porous ceramic grain is conducive to spraying pollutant
Coating surface concentration is starched, and then improves the photocatalytic degradation removal efficiency to pollutant.
The porous ceramic grain for loading nano-photocatalyst is prepared concrete spraying by the present invention as lightweight aggregate, utilizes porous pottery
The Lightness of grain is easy to bond in gunite coating surface aggregation, and then improves the sudden and violent of the nano-photocatalyst that haydite surface is loaded
Show up product, light reaction and fixed intensity；In addition, the strong adsorptivity of porous ceramic grain is conducive to pollutant in gunite coating table
Face concentrates, and is conducive to the degradation efficiency for enhancing nano-photocatalyst.
Below by way of specific embodiment be described in detail invention implementation steps, it is therefore intended that make those skilled in the art into
One step understands the present invention, but the invention is not limited in any way；It should be pointed out that coming to those skilled in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.
Embodiment 1
A kind of preparation method of the river concrete side slope surface photocatalysis gunite coating based on nano modification haydite, specific method
It is as follows：
（1）It is prepared by light porous haydite；
（2）Visible light-responded N dopen Nanos TiO2It is prepared by colloidal sol；
（3）It is prepared by nano modification haydite；
（4）Concrete spraying is prepared using nano modification haydite as lightweight aggregate；
（5）River concrete side slope surface spraying；
（6）Photocatalysis gunite coating cures.
The step（1）It is prepared by light porous haydite：Preparation method is high-temperature sintering process, original prepared by light porous haydite
Material is the flyash of steam power plant's production sieved with 100 mesh sieve, and adds the titanium oxide of raw material weight 0.5% as sintering aid, 20% carbon
Sour hydrogen ammonium be foaming agent, 60% water be binder, stir evenly, with the porous ceramic grain base that a diameter of 0.8cm is made at globe
The light porous haydite that grain size is 3mm is made with 1100 DEG C of sintering 1h in high temperature sintering furnace in green body by body after cooling.
The step（2）Visible light-responded N dopen Nanos TiO2It is prepared by colloidal sol：Preparation method is sol-gel method, tool
Body is by urea with final concentration of 0.02g ml-1It is dissolved in the ethanol solution that pH is 2（The pH value of ethanol solution is by hydrochloric acid tune
Section）, it is denoted as solution A；By butyl titanate with final concentration of 0.06g ml-1It is dissolved in ethanol solution, is denoted as B solution；To solution A
It is stirred, while B solution being added drop-wise to the speed of 120 drops/minute in solution A, be stirred continuously until to form uniform colloidal sol,
N doped nano TiO_2 colloidal sols are made.
The step（3）It is prepared by nano modification haydite：Preparation method preferably dipping-sintering process, specially by step（1）System
Standby light porous haydite is immersed in step（2）The N dopen Nanos TiO of preparation230min is impregnated in colloidal sol, at 100 DEG C after taking-up
Under the conditions of bake until dry, repeat that after above-mentioned immersion-bakes step 3 time, the porous ceramic grain for loading nano-photocatalyst is existed
It is sintered 2h under the conditions of 450 DEG C, can be obtained nano modification haydite after cooling.
The step（4）Concrete spraying is prepared using nano modification haydite as lightweight aggregate：By cement, water, sand, aggregate, subtract
Aqua is uniformly mixed and is made whitewashing, wherein cement be 42.5 grades of ordinary cements, sand be grading be 0.15-4.75mm natural sand,
Aggregate is step（3）In nano modification haydite is made, the naphthalene water reducer that the preferred water-reducing rate of water-reducing agent is 20%, in powder of whitewashing
Cement, water, sand, aggregate, water-reducing agent mixed proportion be preferably 1：0.6：1.5：1.0：0.025 weight ratio, is stirred in blender
Concrete spraying is obtained after mixing uniformly.
The step（5）River concrete side slope surface spraying：First river concrete side slope surface spray water pre-
Processing, to wash away the floating ash in surface and ensure that spray-coating surface moistens, then by step（4）Prepare using nano modification haydite as lightweight aggregate
The box for feeding odd that refractory gunning equipment is added in concrete spraying is prepared, refractory gunning equipment is concrete shotcrete machine, operating pressure when slurries spray
For 8MPa, nozzle diameter 0.5cm, coating layer thickness 2.0cm, the distance of nozzle to building surface is 30cm when spraying.
The step（6）Photocatalysis gunite coating cures：To ensure photocatalysis gunite coating and river concrete side slope
Adhesion strength improves the stability and persistence of gunite coating, in step（5）Terminate at least to ensure in 1d slurry surface spray three times
Water moisturizing is handled, it is to be coated be fully cured it is dry after complete.
Concrete spraying is after building surface spraying, because of the low-density of wherein light porous haydite, Lightness to coating
Apparent motion migration, aggregation bond, and improve exposed area, the light reaction of the nano-photocatalyst that haydite surface is loaded
With fixed intensity, nano-photocatalyst loss not easily to fall off；In addition, the strong adsorptivity of porous ceramic grain is conducive to spraying pollutant
Coating surface concentration is starched, and then improves the photocatalytic degradation removal efficiency to pollutant.
Claims (10)
1. the preparation method of the photocatalysis gunite coating based on nano modification haydite, it is characterized in that including the following steps：
（1）It is prepared by light porous haydite；
（2）It is prepared by nano-photocatalyst colloidal sol；
（3）It is prepared by nano modification haydite；
（4）Concrete spraying is prepared using nano modification haydite as lightweight aggregate；
（5）Building surface sprays；
（6）Photocatalysis gunite coating cures.
2. the preparation method of the photocatalysis gunite coating based on nano modification haydite according to claim 1, it is characterized in that institute
State step（1）It is prepared by light porous haydite：Preparation method uses high-temperature sintering process, and the specific method is as follows：
1）Choose raw material prepared by light porous haydite；
2）The titanium oxide for adding raw material gross weight 0.5%-1% again in the feed be sintering aid, 15%-25% ammonium hydrogen carbonate be hair
Infusion, 55%-65% water be binder, stir evenly, with the porous ceramic grain base that a diameter of 0.5cm-1.2cm is made at globe
Body；
3）By porous ceramic grain green body with 1100 DEG C of sintering 1h in high temperature sintering furnace, it is the light of 2mm-5mm that grain size is made after cooling
Matter porous ceramic grain.
3. the preparation method of the photocatalysis gunite coating based on nano modification haydite according to claim 2, it is characterized in that institute
It is flyash, bed mud, activated sludge, one kind in rubbish or several to state raw material prepared by light porous haydite.
4. the preparation method of the photocatalysis gunite coating based on nano modification haydite according to claim 1, it is characterized in that institute
State step（2）It is prepared by nano-photocatalyst colloidal sol：Preparation method uses sol-gel method, specific as follows：
1）By urea with final concentration of 0.02g ml-1It is dissolved in the ethanol solution that pH is 2, the pH value of ethanol solution is by hydrochloric acid tune
Section, is denoted as solution A；
2）By butyl titanate with final concentration of 0.06g ml-1It is dissolved in ethanol solution, is denoted as B solution；
3）Solution A is stirred, while B solution being added drop-wise to the speed of 120 drops/minute in solution A, is stirred continuously until
Uniform colloidal sol is formed, that is, N dopen Nanos TiO is made2Colloidal sol.
5. the preparation method of the photocatalysis gunite coating based on nano modification haydite according to claim 1, it is characterized in that institute
State step（3）It is prepared by nano modification haydite：Preparation method uses dipping-sintering process, specially by step（1）The lightweight of preparation is more
Hole haydite is immersed in step（2）30min-50min is impregnated in the nano-photocatalyst colloidal sol of preparation, in 100 DEG C of conditions after taking-up
Under bake and repeat above-mentioned immersion-until dry and bake the porous ceramic grain for forming load nano-photocatalyst after step 3 time, will bear
The porous ceramic grain for carrying nano-photocatalyst is sintered 2h-3h under the conditions of 300 DEG C -500 DEG C, and nano modification pottery is can be obtained after cooling
Grain.
6. the preparation method of the photocatalysis gunite coating based on nano modification haydite according to claim 1, it is characterized in that institute
State step（4）Concrete spraying is prepared using nano modification haydite as lightweight aggregate：Cement, water, sand, aggregate, water-reducing agent are mixed equal
It is even that whitewashing is made.
7. the preparation method of the photocatalysis gunite coating based on nano modification haydite according to claim 6, it is characterized in that institute
It is 42.5 grades of ordinary cements to state cement, and the sand is the natural sand of 0.15mm-4.75mm, and the aggregate is step（3）In be made
Nano modification haydite, the water-reducing agent be the naphthalene water reducer that water-reducing rate is 20%, the cement, water, sand, aggregate, water-reducing agent
Mixed weight than ratio be（0.6-1.2）：（0.5-1.0）：（1.5-2.2）：（1.5-2.2）：（0.015-0.025）, described
Cement, water, sand, aggregate, water-reducing agent obtain concrete spraying after being stirred evenly in blender.
8. the preparation method of the photocatalysis gunite coating based on nano modification haydite according to claim 1, it is characterized in that institute
State step（5）Building surface sprays：Water spray pretreatment is carried out to hydraulic structure surface first, to wash away the floating ash in surface and protect
Spray-coating surface moistening is demonstrate,proved, then by step（4）Spray is added in the concrete spraying prepared as lightweight aggregate using nano modification haydite prepared
The box for feeding odd of sizing device carries out spraying by refractory gunning equipment and forms coating.
9. the preparation method of the photocatalysis gunite coating based on nano modification haydite according to claim 8, it is characterized in that institute
It is concrete shotcrete machine to state refractory gunning equipment, and operating pressure is 6 MPa-8MPa when slurries spray, and nozzle diameter is 0.5cm-
0.8cm, coating layer thickness 1.0-5cm, distance of the nozzle away from building surface is 30 cm -50cm when spraying.
10. the preparation method of the photocatalysis gunite coating based on nano modification haydite according to claim 1, it is characterized in that institute
State step（6）Photocatalysis gunite coating cures：In step（5）Terminate at least to ensure in 1d at slurry surface water spray moisturizing three times
Reason, it is to be coated be fully cured it is dry after complete.
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| CN109928709A (en) * | 2019-04-23 | 2019-06-25 | 成都新柯力化工科技有限公司 | A kind of assembled architecture anti-fog haze gypsum wall material and preparation method |
| CN111646563A (en) * | 2020-04-09 | 2020-09-11 | 中冶华天工程技术有限公司 | Slope protection and water body purification material |
| CN113318734A (en) * | 2021-05-31 | 2021-08-31 | 长江水利委员会长江科学院 | Cement-based dirt-removing coating material and preparation method thereof |
| CN114804914A (en) * | 2022-05-18 | 2022-07-29 | 广州大学 | Preparation method of efficient, green and low-cost composite photocatalyst |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109110844A (en) * | 2018-10-22 | 2019-01-01 | 沈阳理工大学 | A kind of preparation method of ultralight sludge ceramsite water-purifying material |
| CN109928709A (en) * | 2019-04-23 | 2019-06-25 | 成都新柯力化工科技有限公司 | A kind of assembled architecture anti-fog haze gypsum wall material and preparation method |
| CN109928709B (en) * | 2019-04-23 | 2021-07-16 | 台州宝诚科技服务有限公司 | Anti-haze gypsum wall material for prefabricated building and preparation method |
| CN111646563A (en) * | 2020-04-09 | 2020-09-11 | 中冶华天工程技术有限公司 | Slope protection and water body purification material |
| CN113318734A (en) * | 2021-05-31 | 2021-08-31 | 长江水利委员会长江科学院 | Cement-based dirt-removing coating material and preparation method thereof |
| CN114804914A (en) * | 2022-05-18 | 2022-07-29 | 广州大学 | Preparation method of efficient, green and low-cost composite photocatalyst |
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