CN108314469A - A kind of preparation method of the photocatalysis porous ceramic pavior brick of composite nano - Google Patents
A kind of preparation method of the photocatalysis porous ceramic pavior brick of composite nano Download PDFInfo
- Publication number
- CN108314469A CN108314469A CN201810207188.5A CN201810207188A CN108314469A CN 108314469 A CN108314469 A CN 108314469A CN 201810207188 A CN201810207188 A CN 201810207188A CN 108314469 A CN108314469 A CN 108314469A
- Authority
- CN
- China
- Prior art keywords
- nano
- pavior brick
- photocatalysis
- porous ceramic
- brick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5007—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with salts or salty compositions, e.g. for salt glazing
- C04B41/5014—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with salts or salty compositions, e.g. for salt glazing containing sulfur in the anion, e.g. sulfides
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5041—Titanium oxide or titanates
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5049—Zinc or bismuth oxides
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/505—Tin oxide
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to a kind of preparation methods of the photocatalysis porous ceramic pavior brick of composite nano, including steps are as follows：The precursor sol solution of nano-photocatalyst is fixed in the surface and hole of ceramic water permeable pavior brick by way of impregnating or spraying, then in 400 800 DEG C of roastings to get the photocatalysis porous ceramic pavior brick of composite nano.Using porcelain permeable pavement brick as carrier, TiO is made by the method loaded in situ2Equal nano-photocatalysts are grown directly upon in the hole of ceramic water permeable pavior brick, keep its load secured, the dyestuffs such as pernicious gases and methylene blue such as nitrogen oxides, sulfide in the air that can degrade automatically, make air purification, is suitable for the ground of the crowds compact districts such as residential block, park or scenic spot.
Description
Technical field
The present invention relates to a kind of nano-photo catalytic construction materials, and in particular to a kind of photocatalysis porous ceramics of composite nano
The preparation method of pavior brick.
Background technology
It is one of the new technology of air pollution control using nano material purification vehicle exhaust, is to urge with conductor oxidate
The multiphase photocatalysis process of agent can be reacted with it, can make organic pollution mineralising directly under the action of light at room temperature,
A kind of technology non-secondary pollution, it has also become ideal environmental pollution treatment technology.TiO2Nano-photocatalyst material, because of its nothing
Poison, to human body and environmentally friendly, efficient, multi-functional, and it is friendly with stronger redox ability, chemical stability, environment
The features such as property, multiple industry fields have been widely used in it.By the way that the crowd is dense, area making photocatalysis ceramics road surface is permeable
Brick, can degrade the noxious airs such as nitrogen oxides, improve air quality.
It is less for the patent document of photocatalysis pavior brick at present, as Chinese patent document CN107285670A discloses one
Kind titanium dioxide nano thread photocatalysis slurry and concrete, the titanium dioxide nano thread photocatalysis slurry, suitable for making an addition to coagulation
Soil comprising TiO2Nano wire, TiO2A concentration of 7-14g/L of nano wire in the slurry significantly photocatalysis can remove NO, ring
It protects pollution-free, while there is preferable mechanical property and durability.In addition, the present invention also proposes a kind of titanium dioxide nano thread
Photocatalysis concrete comprising concrete and above-mentioned slurry, can effectively photocatalysis remove NO, it is environment friendly and pollution-free, at the same have compared with
Good mechanical property and durability, the removal rate of NO are up to 61% or more.But the photocatalysis slurry is with binder by two
Titanium oxide nano wire is directly sprayed in concrete surface, there is that adherency is uneven, and road surface can lead to titanium dioxide by long-term friction
The problems such as titanium nano wire falls off.
Chinese patent document CN105669135A discloses a kind of preparation of composite nano photocatalysis concrete road pavement brick
Method, its steps are as follows：(1) main body layered material knead dough layered material is prepared；(2) capstock is first poured into mold, then pours into body layer
Material, then extrusion forming, demoulding back layer condense 2-3h naturally upward；(3) binder is made with cement mortar, is sprayed on capstock
Titanate precursor sol is applied, titanate precursor sol forms film on capstock, in cleaning, environment at room temperature
Ageing 7-10 days, obtains concrete road pavement brick idiosome；(4) concrete road pavement brick idiosome is put into drying oven, is obtained compound
Nano-photo catalytic concrete road pavement brick.But then photochemical catalyst will be made as binder using cement, there are cement mortars
The problems such as influence illumination influences photocatalysis efficiency in turn, and photochemical catalyst is insecure with concrete binding；The system of photochemical catalyst face layer
In standby, cement concrete pavement brick be put into 400-450 DEG C of environment and roasted, pole is generated to concrete strength and durability
Big adverse effect.
Chinese patent document CN106478029A discloses a kind of high efficiency photocatalysis concrete material and its manufacturing method,
In, high efficiency photocatalysis concrete material includes nano-TiO2Powder, cullet slag, cement and water, wherein nano-TiO2Powder
Weight accounting is 1~6%, and the weight accounting of cullet slag is 65~70%, and the weight accounting of cement is 25~30%, water
Weight accounting is 4~8%.Nano-TiO2The component of powder includes TiO2And water, wherein TiO2Weight accounting be 98.5%,
The weight accounting of water is 0.05%.The method for making high efficiency photocatalysis concrete material includes step：S10：Cullet are taken respectively
Slag, nano-TiO2Powder, cement, water；S20：It is poured into steel die after four kinds of materials are stirred evenly；S30：It is compacted steel with press
Mixing material in molding jig；S40：It is taken out after placing preset time.But the concrete material light transmittance is still by certain
It influences, and TiO2Dosage is larger, there are larger waste, it is of high cost the problems such as, and TiO is wrapped up by cement mortar2It cannot be effective
It utilizes.
In short, existing photocatalysis pavior brick is mostly to use concrete material, not only photocatalyst firmness
Difference, and intensity is low, and photocatalysis performance is also undesirable under the same terms.
Invention content
For existing photocatalysis ground surface material there are the problem of, the present invention is given birth to photochemical catalyst using the method that loads in situ
It is longer than in ceramic water permeable pavior brick hole, its adhesion degree is made to greatly improve, extends the service life of photocatalysis pavior brick；
Photocatalyst is in ceramic water permeable pavior brick so that dust in hole can be rinsed by rainwater or road surface sprinkling truck etc.,
Ensure the catalytic condition of photochemical catalyst.
Technical scheme is as follows：
A kind of preparation method of the photocatalysis porous ceramic pavior brick of composite nano, including steps are as follows：
The precursor sol solution of nano-photocatalyst is fixed on ceramic water permeable road surface by way of impregnating or spraying
In the surface and hole of brick, then in 400-800 DEG C of roasting to get the photocatalysis porous ceramic pavior brick of composite nano.
, according to the invention it is preferred to, the nano-photocatalyst is nano-TiO2, nano-ZnO, nano-tube/CdS or and receive
Rice SnO.
, according to the invention it is preferred to, nano-TiO2Precursor sol be organic titanium salt or inorganic titanium salt, further preferably
Tetra-n-butyl titanate, titanium tetraisopropylate or titanium tetrachloride；
, according to the invention it is preferred to, the solvent of the precursor sol solution of nano-photocatalyst is ethyl alcohol, water or/and salt
Acid；
Preferably, concentration of hydrochloric acid 2-6mol/L.
, according to the invention it is preferred to, the mass concentration of the precursor sol solution of nano-photocatalyst is 11wt%-
20wt%, further preferred 12wt%-15wt%.
, according to the invention it is preferred to, the permeability rate of the ceramic water permeable pavior brick is 2.0 × 10-2cm/s。
, according to the invention it is preferred to, roasting time is 10-40 minutes.
According to the present invention, after roasting, TiO2The nano-photocatalysts such as crystal grain are in the surface of ceramic water permeable pavior brick and hole
Interior growth in situ.
According to the present invention, photochemical catalyst can also be nano-ZnO, nano-tube/CdS, nano SnO.
According to the present invention, commercially available ceramic water permeable pavior brick can be used in ceramic water permeable pavior brick, is passed through using ceramic raw material
Sieve sorting, organize reasonable grain composition, after adding bonding agent, through molding, drying, high temperature sintering and formed high-quality permeable
Building materials.Its feature is high intensity, good water permeability, freezing and thawing performance is good, non-skid property is good, good ecological, environmental protective performance, and can
The formation for improving urban micro-climate, blocking city flood.
Beneficial effects of the present invention are as follows：
1, the present invention makes TiO using porcelain permeable pavement brick as carrier by the method loaded in situ2Equal nano-photocatalysts are straight
It connects and is grown in the hole of ceramic water permeable pavior brick, keep its load secured, nitrogen oxides, vulcanization in the air that can degrade automatically
The dyestuffs such as the pernicious gases such as object and methylene blue, make air purification, and being suitable for residential block, park or scenic spot etc., the crowd is dense
The ground in area.
2, the photocatalysis porous ceramic pavior brick of composite nano of the invention has excellent photocatalysis performance, to methylene
The degradation rate of blue solution is in 60 minutes up to 90% or more.
3, preparation process of the present invention is simple, the photocatalysis porous ceramic pavior brick intensity of load jail of composite nano obtained
Gu rub resistance, service life is long.
Description of the drawings
Fig. 1 is the SEM image of 1 raw materials used ceramic water permeable pavior brick of embodiment.
Fig. 2 is the SEM image of the photocatalysis porous ceramic pavior brick of composite nano made from embodiment 1.
Fig. 3 is the EDS images of 1 raw materials used ceramic water permeable pavior brick of embodiment.
Fig. 4 is the EDS images of the photocatalysis porous ceramic pavior brick of composite nano made from embodiment 1.
Specific embodiment
Below by specific embodiment, the present invention is further described, but not limited to this.
Raw materials used in embodiment is regular market purchase product, and wherein it is public to chat source ecological, environmental protective for ceramic water permeable pavior brick Shandong
Take charge of it is on sale, permeability rate be 2.0 × 10-2cm/s。
Embodiment 1
A kind of preparation method of the photocatalysis porous ceramic pavior brick of composite nano, including steps are as follows：
(1) ceramic water permeable pavior brick deionized water is cleaned by ultrasonic 30min, after drying for use；
(2) tetra-n-butyl titanate is dissolved in the ethanol solution for forming tetra-n-butyl titanate in absolute ethyl alcohol, is then added and steams
Distilled water, wherein tetra-n-butyl titanate：Absolute ethyl alcohol：Distilled water=3.5:16:10, mass ratio, the quality point of tetra-n-butyl titanate
Number is 11.86%, obtains titanate precursor sol solution；
(3) the ceramic water permeable pavior brick handled well is placed in titanate precursor sol solution, impregnates 2h；
(4) the ceramic water permeable pavior brick after immersion is taken out, is put into roaster, with the heating rate of 3-5 DEG C/min
30 minutes are calcined to get the photocatalysis porous ceramic pavior brick of composite nano to 500 DEG C.
The scanning electron microscope (SEM) photograph of ceramic water permeable pavior brick used is as shown in Figure 1 in the present embodiment；
The scanning electron microscope (SEM) photograph of the photocatalysis porous ceramic pavior brick of composite nano made from the present embodiment is as shown in Figure 2.
By Fig. 1,2 it is found that nano-TiO2Crystal grain can be grown directly upon the surface of ceramic pavior brick, and in gap distribution compared with
To be uniform, structure is more loose, is conducive to the efficiency for improving photocatalytic degradation.
The EDS images of 1 raw materials used ceramic water permeable pavior brick of embodiment are as shown in Figure 3；
The EDS images of the photocatalysis porous ceramic pavior brick of composite nano made from the present embodiment are as shown in Figure 4.
By Fig. 3,4 it is found that the photocatalysis porous ceramic pavior brick of composite nano made from the present embodiment succeeded it is compound
Nano-TiO2Crystal grain.
Embodiment 2
A kind of preparation method of the photocatalysis porous ceramic pavior brick of composite nano, including steps are as follows：
(1) ceramic water permeable pavior brick deionized water is cleaned by ultrasonic 30min, after drying for use；
(2) tetra-n-butyl titanate is dissolved in the ethanol solution for forming tetra-n-butyl titanate in absolute ethyl alcohol, salt is then added
Sour (6mol/L), wherein tetra-n-butyl titanate：Absolute ethyl alcohol：Hydrochloric acid=4:16:10, mass ratio, the quality of tetra-n-butyl titanate
Score is 13.3%, obtains titanate precursor sol solution；
(3) the ceramic water permeable pavior brick handled well is placed in titanate precursor sol solution, impregnates 2h；
(4) the ceramic water permeable pavior brick after immersion is taken out, is put into roaster, with the heating rate of 3-5 DEG C/min
30 minutes are calcined to get the photocatalysis porous ceramic pavior brick of composite nano to 450 DEG C.
Embodiment 3
As described in Example 1, unlike：
The mass fraction of tetra-n-butyl titanate is 15%, and calcination temperature is 600 DEG C.
Embodiment 4
As described in Example 1, unlike：
The mass fraction of tetra-n-butyl titanate is 19%, and calcination temperature is 800 DEG C.
Embodiment 5
It weighs acetic acid dihydrate zinc to be dissolved in absolute ethyl alcohol, adds the ethanol amine with amount of substance such as acetic acid dihydrate zinc,
The amount ratio of ethanol amine and the substance of acetic acid dihydrate zinc remains 1:1, above-mentioned mixed solution is placed on heat collecting type constant temperature magnetic
In power blender, under the conditions of 70 DEG C of waters bath with thermostatic control, it is molten to finally obtain the uniform and stable colloid of clear by sustained response 2h
Liquid, after be sprayed on ceramic water permeable pavior brick, in 600 DEG C be heat-treated 2h after can be obtained ceramic water permeable pavior brick.
Embodiment 6
Using chromium sulfate and vulcanized sodium as cadmium source and sulphur source, using ethylenediamine as organic solvent, addition polyethylene glycol is activating agent,
It is sprayed on ceramic water permeable pavior brick, can be obtained ceramic water permeable pavior brick after being heat-treated 2h in 600 DEG C.
Embodiment 7
To analyze pure butter of tin (SnCl4·5H2O it is) starting material, is configured to deionized water certain density molten
Liquid is added ammonium hydroxide and colloidal sol forms auxiliary agent, be allowed to be formed molten under the kineticses constraints such as control temperature, stirring
Then glue is sprayed on ceramic water permeable pavior brick, can be obtained ceramic water permeable pavior brick after being heat-treated 2h in 600 DEG C.
Comparative example 1
A kind of photocatalysis ceramics permeable pavement brick, steps are as follows：
(1) ceramic water permeable pavior brick is first cleaned by ultrasonic 30min with deionized water, after drying for use；
(2) tetra-n-butyl titanate is dissolved in the ethanol solution for forming tetra-n-butyl titanate in absolute ethyl alcohol, salt is then added
Acid solution, wherein tetra-n-butyl titanate：Absolute ethyl alcohol：Hydrochloric acid solution (2mol/L)=1:16:3, mass ratio, four positive fourth of metatitanic acid
The mass fraction of ester is 5%, obtains titanate precursor sol solution；
(3) the ceramic water permeable pavior brick handled well is placed in titanate precursor sol solution, stands 2h；
(4) ceramic water permeable pavior brick after immersion is taken out, is put into roaster, 400 DEG C of low-temperature bakes 30 minutes, i.e.,
Obtain photocatalysis ceramics road surface water-permeable brick.
Comparative example 2
A kind of photocatalysis ceramics road surface water-permeable brick, steps are as follows：
(1) ceramic water permeable pavior brick deionized water is cleaned by ultrasonic 30min, after drying for use；
(2) tetra-n-butyl titanate is dissolved in the ethanol solution for forming tetra-n-butyl titanate in absolute ethyl alcohol, salt is then added
Acid solution, wherein tetra-n-butyl titanate：Absolute ethyl alcohol：Distilled water=1:4:12, mass ratio, the quality point of tetra-n-butyl titanate
Number is 5.9%, obtains titanate precursor sol solution；
(3) the ceramic water permeable pavior brick handled well is placed in titanate precursor sol solution, stands 2h；
(4) the ceramic water permeable pavior brick after immersion is taken out, is put into roaster, 600 DEG C are calcined 30 minutes to get light
Catalytic ceramics road surface water-permeable brick.
Comparative example 3
A kind of photocatalysis ceramics road surface water-permeable brick, steps are as follows：
(1) ceramic water permeable pavior brick deionized water is cleaned by ultrasonic 30min, after drying for use；
(2) tetra-n-butyl titanate is dissolved in the ethanol solution for forming tetra-n-butyl titanate in absolute ethyl alcohol, salt is then added
Acid solution, wherein tetra-n-butyl titanate：Absolute ethyl alcohol：Hydrochloric acid solution (6mol/L)=1:8:6, mass ratio, tetra-n-butyl titanate
Mass fraction be 6.67%, obtain titanate precursor sol solution；
(3) the ceramic water permeable pavior brick handled well is placed in titanate precursor sol solution, stands 2h；
(4) ceramic water permeable pavior brick after immersion is taken out, is put into roaster, 500 DEG C of low-temperature bakes 30 minutes, i.e.,
Obtain photocatalysis ceramics road surface water-permeable brick.
Comparative example 4
A kind of photocatalysis ceramics road surface water-permeable brick, steps are as follows：
(1) ceramic water permeable pavior brick deionized water is cleaned by ultrasonic 30min, after drying for use；
(2) tetra-n-butyl titanate is dissolved in the ethanol solution for forming tetra-n-butyl titanate in absolute ethyl alcohol, salt is then added
Acid solution, wherein tetra-n-butyl titanate：Absolute ethyl alcohol：Hydrochloric acid solution (6mol/L)=3:16:9, mass ratio, four positive fourth of metatitanic acid
The mass fraction of ester is 10.71%, obtains titanate precursor sol solution；
(3) the ceramic water permeable pavior brick handled well is placed in titanate precursor sol solution, stands 2h；
(4) ceramic water permeable pavior brick after immersion is taken out, is put into roaster, 800 DEG C of low-temperature bakes 30 minutes, i.e.,
Obtain photocatalysis ceramics road surface water-permeable brick.
Comparative example 5
As described in Example 1, unlike：
Calcination temperature is 300 DEG C.
Comparative example 6
As described in Example 1, unlike：
Calcination temperature is 900 DEG C.
Test example 1 tests photocatalysis performance using methylene blue edman degradation Edman
Methylene blue edman degradation Edman：Prepare the nano titanium dioxide paste of certain density methylene blue solution and certain mass
Material is uniformly mixed, and the ultraviolet irradiation of certain time is carried out in homemade photocatalytic system.The ultraviolet-visible of methylene blue is inhaled
It receives spectrum to measure on UV757CRT, degradation rate and adsorption rate pass through calculating by the absorbance of maximum absorption wavelength (574nm)
It can obtain.It is directly proportional with its absorbance according to the concentration of Lambert-Beer law methylene blue solution, you can to pass through formula 1
The degradation rate of methylene blue solution is calculated, and then symbolizes photocatalysis efficiency.
η=(A0-A1)/A0Formula 1
In formula:The degradation rate of η --- methylene blue；
A0, A --- the content of organic matter in ultraviolet lighting fore-and-aft architecture.
The results are shown in Table 1.
The different samples of table 1 are in different time to the degradation rate η of methylene blue solutionD(%)
As shown in Table 1, the precursor sol solution of nano-photocatalyst of the present invention controls in suitable concentration range, obtains
Catalytic performance to photocatalysis ceramics road surface water-permeable brick is excellent, and concentration is too low, and obtained photocatalysis ceramics road surface water-permeable brick is urged
It is poor to change performance.
The calcination temperature of the present invention also has a major impact the catalytic performance of photocatalysis ceramics road surface water-permeable brick, and temperature is too
Low or temperature is too high all to influence nano-TiO2Production quantity, influence photocatalysis efficiency.
Test example 2, rub resistance recycle performance test
Reference《Test method for abrasion resistance of concrete and its products》(GB/T16925-1997) test method, test are frayed
The photocatalysis efficiency of photocatalysis porous ceramic pavior brick afterwards.
Table 2 after wearing away different samples after 60min to the degradation rate η of methylene blue solutionD(%)
| Number | Degradation rate η after 60minD(%) |
| Embodiment 1 | 88.87 |
| Embodiment 2 | 90.30 |
| Embodiment 3 | 92.55 |
| Embodiment 4 | 94.00 |
| Embodiment 5 | 84.36 |
| Embodiment 6 | 82.64 |
| Embodiment 7 | 74.63 |
| Comparative example 1 | 17.01 |
| Comparative example 2 | 31.23 |
| Comparative example 3 | 39.62 |
| Comparative example 4 | 54.02 |
| Comparative example 5 | 13.26 |
| Comparative example 6 | 13.60 |
The photocatalysis efficiency of photocatalysis ceramics permeable pavement brick is influenced after can be seen that abrasion by 2 experimental data of table
Less, the main reason is that nano-TiO2It is grown in a manner of loading in situ in permeable pavement brick surface and its gap, therefore
Pavior brick still has higher photocatalysis efficiency after abrasion.But in comparative example 5,6 pavior brick photocatalysis efficiency decline compared with
It is more, when being primarily due to too high or too low for temperature, influence TiO2Generation and load firmness.
Claims (9)
1. a kind of preparation method of the photocatalysis porous ceramic pavior brick of composite nano, including steps are as follows：
The precursor sol solution of nano-photocatalyst is fixed on ceramic water permeable pavior brick by way of impregnating or spraying
In surface and hole, then in 400-800 DEG C of roasting to get the photocatalysis porous ceramic pavior brick of composite nano.
2. the preparation method of the photocatalysis porous ceramic pavior brick of composite nano according to claim 1, which is characterized in that
The nano-photocatalyst is nano-TiO2, nano-ZnO, nano-tube/CdS or and nano SnO.
3. the preparation method of the photocatalysis porous ceramic pavior brick of composite nano according to claim 1, which is characterized in that
Nano-TiO2Precursor sol be organic titanium salt or inorganic titanium salt.
4. the preparation method of the photocatalysis porous ceramic pavior brick of composite nano according to claim 3, which is characterized in that
The organic titanium salt is tetra-n-butyl titanate or titanium tetraisopropylate, and the inorganic titanium salt is titanium tetrachloride.
5. the preparation method of the photocatalysis porous ceramic pavior brick of composite nano according to claim 1, which is characterized in that
The solvent of the precursor sol solution of nano-photocatalyst is ethyl alcohol, water or/and hydrochloric acid.
6. the preparation method of the photocatalysis porous ceramic pavior brick of composite nano according to claim 1, which is characterized in that
The mass concentration of the precursor sol solution of nano-photocatalyst is 11wt%-20wt%.
7. the preparation method of the photocatalysis porous ceramic pavior brick of composite nano according to claim 6, which is characterized in that
The mass concentration of the precursor sol solution of nano-photocatalyst is 12wt%-15wt%.
8. the preparation method of the photocatalysis porous ceramic pavior brick of composite nano according to claim 1, which is characterized in that
The permeability rate of the ceramic water permeable pavior brick is 2.0 × 10-2cm/s。
9. the preparation method of the photocatalysis porous ceramic pavior brick of composite nano according to claim 1, which is characterized in that
Roasting time is 10-40 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810207188.5A CN108314469B (en) | 2018-03-14 | 2018-03-14 | Preparation method of composite nano photocatalytic water-permeable ceramic pavement brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810207188.5A CN108314469B (en) | 2018-03-14 | 2018-03-14 | Preparation method of composite nano photocatalytic water-permeable ceramic pavement brick |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108314469A true CN108314469A (en) | 2018-07-24 |
| CN108314469B CN108314469B (en) | 2021-07-13 |
Family
ID=62901810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810207188.5A Active CN108314469B (en) | 2018-03-14 | 2018-03-14 | Preparation method of composite nano photocatalytic water-permeable ceramic pavement brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108314469B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429222A (en) * | 2021-07-16 | 2021-09-24 | 重庆大学 | Ag/TiO2Photocatalytic ceramic tile and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050129853A1 (en) * | 2003-12-16 | 2005-06-16 | Ming-Theng Wang | Nano photocatalyst coating procedure |
| CN101838027A (en) * | 2010-04-22 | 2010-09-22 | 上海凡清环境工程有限公司 | Sterilization and photocatalytic oxidation method and device |
| CN102535725A (en) * | 2012-02-17 | 2012-07-04 | 大连工业大学 | Permeable bricks inlaid with nanometer titanium dioxide and preparation method thereof |
| CN104478462A (en) * | 2014-11-07 | 2015-04-01 | 桂林新竹大自然生物材料有限公司 | Catalytic-materail-coated microcrystal bamboo-charcoal pottery bead and preparation method thereof |
-
2018
- 2018-03-14 CN CN201810207188.5A patent/CN108314469B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050129853A1 (en) * | 2003-12-16 | 2005-06-16 | Ming-Theng Wang | Nano photocatalyst coating procedure |
| CN101838027A (en) * | 2010-04-22 | 2010-09-22 | 上海凡清环境工程有限公司 | Sterilization and photocatalytic oxidation method and device |
| CN102535725A (en) * | 2012-02-17 | 2012-07-04 | 大连工业大学 | Permeable bricks inlaid with nanometer titanium dioxide and preparation method thereof |
| CN104478462A (en) * | 2014-11-07 | 2015-04-01 | 桂林新竹大自然生物材料有限公司 | Catalytic-materail-coated microcrystal bamboo-charcoal pottery bead and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 《第一性原理计算—TIO2表面》: "《第一性原理计算—TiO2表面》", 31 May 2017 * |
| 何泽人等: "《无机制备化学手册 上册》", 31 March 1972, 燃料化学出版社 * |
| 刘欣等: ""TiO 2溶胶的制备以及在建筑陶瓷中的应用"", 《山东陶瓷》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429222A (en) * | 2021-07-16 | 2021-09-24 | 重庆大学 | Ag/TiO2Photocatalytic ceramic tile and preparation method thereof |
| CN113429222B (en) * | 2021-07-16 | 2023-02-21 | 重庆大学 | Ag/TiO material 2 Photocatalytic ceramic tile and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108314469B (en) | 2021-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106582892B (en) | Nano-TiO2Coating structure and its preparation method and application | |
| CN101591195A (en) | A kind of nano photocatalysis porous concrete product and preparation method thereof | |
| CN102153318B (en) | Method for preparing photo-catalytic cement-based material and method for preparing photocatalyst | |
| CN100439282C (en) | Prepn process of multifunctional honeycomb ceramic filter element | |
| CN102471157B (en) | Fibre-reinforced cementitious building materials capable of purifying air | |
| WO2017035848A1 (en) | Flue gas denitrification catalyst and preparation method thereof | |
| CN108546054A (en) | Permeable face layer mortar of a kind of high-strength automatically cleaning and preparation method thereof | |
| CN107698230A (en) | Wall material in a kind of composite multifunction room of damping antibacterial purifying air release anion | |
| CN110183204A (en) | A kind of water-permeable brick of load nano-titanium dioxide and preparation method thereof | |
| CN104563398A (en) | Method forming building element and algae-resistant building element | |
| CN107265728A (en) | A kind of porous pottery water purifier of silver-colored N doping and preparation method thereof | |
| CN108314469A (en) | A kind of preparation method of the photocatalysis porous ceramic pavior brick of composite nano | |
| Faraldos et al. | Multifunctional photocatalytic coatings for construction materials | |
| CN105669135A (en) | Preparation method of composite type nano-photocatalytic concrete pavement brick | |
| CN110436829A (en) | The preparation method of catalytic degradation type Open grade friction course asphalt | |
| CN108499577B (en) | Load sandwich type TiO on carbon fiber surface2Base photocatalyst and application thereof | |
| CN106699049A (en) | Bacteriostatic ecological concrete | |
| CN103830965B (en) | Toughness reinforcing composite ceramic filter core of a kind of monkey grass and preparation method thereof | |
| CN108816267A (en) | A kind of loess load nitrogen-doped zinc oxide photochemical catalyst and preparation method thereof | |
| CN108129096A (en) | For the cement slurry and preparation method of nanometer modified photocatalytic self-cleaning concrete | |
| CN109266223A (en) | A kind of preparation method of catalytic degradation vehicle exhaust type asphalt mastic | |
| CN108083720A (en) | A kind of nanometer modified photocatalytic self-cleaning concrete and preparation method thereof | |
| CN104909633B (en) | A kind of TiO2With the preparation method of the polymer cement mortar of flyash composite photocatalyst material | |
| CN106833040B (en) | A kind of titania-doped automatically cleaning composite nano-coating of porous metal and its preparation method and application | |
| JP4625742B2 (en) | Method for producing photocatalyst body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |