CN110467438A - A kind of preparation method of the ceramic membrane with catalytic degradation function - Google Patents
A kind of preparation method of the ceramic membrane with catalytic degradation function Download PDFInfo
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- CN110467438A CN110467438A CN201810445782.8A CN201810445782A CN110467438A CN 110467438 A CN110467438 A CN 110467438A CN 201810445782 A CN201810445782 A CN 201810445782A CN 110467438 A CN110467438 A CN 110467438A
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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
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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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
- 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
- C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
- C04B41/5116—Ag or Au
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- 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
- C04B41/88—Metals
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
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- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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Abstract
The present invention provides a kind of preparation method of ceramic membrane with catalytic degradation function, include the following steps: according to a certain percentage to mix aluminium oxide, titanium dioxide, pore creating material, binder, plasticizer and water, it is smelt high-ductility pug, green body is made, sinter molding, silver nano-grain is sprayed, double sintering is carried out.Compared with prior art, the present invention has photocatalysis performance, can degrade Organic substance in water, and COD and ammonia-nitrogen content is effectively reduced with following the utility model has the advantages that ceramic membrane prepared by the present invention introduces titanium dioxide and nano-Ag particles.
Description
Technical field
The present invention relates to a kind of preparation methods of ceramic membrane with catalytic degradation function, belong to ceramic membrane technology field.
Background technique
With the continuous development of society, environmental problem also increasingly highlights, especially water pollution problem.In recent years, it lives
Sewage and landfill leachate are gradually increased the destruction of soil and water body.These sewage compositions are complicated, high organic content, COD
With ammonia-nitrogen content height, easily growth bacterium and microorganism, water eutrophication is caused, causes water body smelly.With " house refuse
Landfill yard contamination control standard " (GB16889-2008) promulgation and implementation, have higher requirement to sewage disposal technology.Pottery
Contain a large amount of stomatas inside porcelain film, porosity is 30% or more, and at 0.1~100 μm, fenestra is interconnected pore-size distribution, in outer
Close interior thin unsymmetric structure, the continuous expansion in fields such as waste water treatment, sewage treatments are used, and sewage treatment need can be met
It asks.
Ceramic membrane chemical stability is good, acid and alkali-resistance, resistant to corrosion；Physical stability is good, high temperature resistant, high pressure resistant；Porosity is high,
The advantages that large specific surface area, flux is big, removal of impurities good separating effect.
Existing ceramic membrane function is more single, relies primarily on " screening mechanism ", by diameter be less than fenestra small molecule or
Liquid filtering, diameter are greater than the macromolecular or solid retention of fenestra, degradation can not be played to the organic matter in water body, to water
COD and ammonia-nitrogen content in body can not be reduced.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of ceramic membranes with catalytic degradation function
Preparation method.
The purpose of the present invention is what is be achieved through the following technical solutions:
The present invention provides a kind of preparation methods of ceramic membrane with catalytic degradation function, include the following steps: oxygen
Change aluminium, titanium dioxide, pore creating material, binder, plasticizer and water to mix according to a certain percentage, is smelt high-ductility pug, is made
Green body, sinter molding spray silver nano-grain, carry out double sintering.
Preferably, the preparation method of the high-ductility pug specifically uses following methods:
Aluminium oxide, titanium dioxide, pore creating material, binder, plasticizer and water are mixed according to a certain percentage, refined in vacuum
Mud refining in mud machine.
Preferably, the aluminium oxide, titanium dioxide, pore creating material, binder, plasticizer and water according to parts by weight 50
~70 parts, 30~50 parts, 5~12 parts, 2~10 parts, 1~5 part and 5~25 parts.
Preferably, 1~30um of partial size selection of the aluminium oxide, titanium dioxide.
Preferably, the body preparation method specifically uses following methods:
High-ductility pug is carried out to be squeezed into base, is dried under certain environmental conditions.
Preferably, the sinter molding uses hyperthermia tunnel Kiln, at 1200~1750 DEG C, is sintered 2~10h.
Preferably, the spraying of the silver nano-grain specifically uses following methods:
By dispersed nano-silver particles in alcohol solvent, certain density suspension is formed, by spray gun by silver nanoparticle
Grain is uniformly sprayed on the surface of ceramic membrane.
Preferably, the turbid liquid concentration is 60~200g/L.
Preferentially, the double sintering uses electric furnace, and at 600~900 DEG C, sintering time is 2~4h.
Compared with prior art, the present invention have it is following the utility model has the advantages that
Ceramic membrane prepared by the present invention introduces titanium dioxide and nano-Ag particles, has photocatalysis performance, can degrade
COD and ammonia-nitrogen content is effectively reduced in Organic substance in water.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
Embodiment 1
The present embodiment is related to a kind of preparation method of ceramic membrane with catalytic degradation function, and its step are as follows:
Step 1: 60 parts according to parts by weight, 40 parts, 10 parts, 8 parts, 4 parts and 20 parts, by the aluminium oxide of partial size 5um, grain
Titanium dioxide, pore creating material, binder, plasticizer and the water of diameter 5um, vacuum are smelt high-ductility pug；
It is 20 DEG C in temperature Step 2: high-ductility pug is carried out extrusion forming, dry humidity is to dry in the air under 50% environment
It is dry；
Step 3: by green body in high temperature tunnel furnace, with 1400 DEG C of sintering 4h；
Step 4: in ceramic membrane surface, the nano silver ethanol solution for being 200g/L with concentration sprays one layer of Argent grain.
Step 5: the ceramic membrane of Argent grain will be sprayed in electric furnace with 700 DEG C of sintering 4h.
Ceramic membrane prepared by the present invention introduces titanium dioxide and nano-Ag particles, has photocatalysis performance, can degrade
COD and ammonia-nitrogen content is effectively reduced in Organic substance in water.
There are many concrete application approach of the present invention, the above is only a preferred embodiment of the present invention.More than it should be pointed out that
Embodiment is merely to illustrate the present invention, and the protection scope being not intended to restrict the invention.For the common skill of the art
For art personnel, without departing from the principle of the present invention, several improvement can also be made, these improvement also should be regarded as this hair
Bright protection scope.
Claims (9)
1. a kind of preparation method of the ceramic membrane with catalytic degradation function, which comprises the steps of: will aoxidize
Aluminium, titanium dioxide, pore creating material, binder, plasticizer and water mix according to a certain percentage, are smelt high-ductility pug, base is made
Body, sinter molding spray silver nano-grain, carry out double sintering.
2. a kind of preparation method of ceramic membrane with catalytic degradation function according to claim 1, which is characterized in that institute
The preparation method for stating high-ductility pug specifically uses following methods:
Aluminium oxide, titanium dioxide, pore creating material, binder, plasticizer and water are mixed according to a certain percentage, in vacuum pugmill
Middle mud refining.
3. a kind of preparation method of ceramic membrane with catalytic degradation function according to claim 2, which is characterized in that institute
State 50~70 parts, 30~50 parts, 5 of aluminium oxide, titanium dioxide, pore creating material, binder, plasticizer and water according to parts by weight
~12 parts, 2~10 parts, 1~5 part and 5~25 parts.
4. a kind of preparation method of ceramic membrane with catalytic degradation function according to claim 2, which is characterized in that institute
State aluminium oxide, the partial size of titanium dioxide selects 1~30um.
5. a kind of preparation method of ceramic membrane with catalytic degradation function according to claim 1, which is characterized in that institute
It states body preparation method and specifically uses following methods:
High-ductility pug is carried out to be squeezed into base, is dried under certain environmental conditions.
6. a kind of preparation method of ceramic membrane with catalytic degradation function according to claim 1, which is characterized in that institute
Sinter molding is stated using hyperthermia tunnel Kiln, at 1200~1750 DEG C, is sintered 2~10h.
7. a kind of preparation method of ceramic membrane with catalytic degradation function according to claim 1, which is characterized in that institute
The spraying for stating silver nano-grain specifically uses following methods:
By dispersed nano-silver particles in alcohol solvent, certain density suspension is formed, it is by spray gun that silver nano-grain is equal
The even surface for being sprayed on ceramic membrane.
8. a kind of preparation method of ceramic membrane with catalytic degradation function according to claim 7, which is characterized in that institute
Stating turbid liquid concentration is 60~200g/L.
9. a kind of preparation method of ceramic membrane with catalytic degradation function according to claim 1, which is characterized in that institute
Double sintering is stated using electric furnace, at 600~900 DEG C, sintering time is 2~4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810445782.8A CN110467438A (en) | 2018-05-10 | 2018-05-10 | A kind of preparation method of the ceramic membrane with catalytic degradation function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810445782.8A CN110467438A (en) | 2018-05-10 | 2018-05-10 | A kind of preparation method of the ceramic membrane with catalytic degradation function |
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| CN110467438A true CN110467438A (en) | 2019-11-19 |
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| CN201810445782.8A Pending CN110467438A (en) | 2018-05-10 | 2018-05-10 | A kind of preparation method of the ceramic membrane with catalytic degradation function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028180A (en) * | 2020-08-18 | 2020-12-04 | 哈尔滨工业大学（威海） | Catalytic functional ceramic membrane and preparation method and application thereof |
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2018
- 2018-05-10 CN CN201810445782.8A patent/CN110467438A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028180A (en) * | 2020-08-18 | 2020-12-04 | 哈尔滨工业大学（威海） | Catalytic functional ceramic membrane and preparation method and application thereof |
| CN112028180B (en) * | 2020-08-18 | 2021-10-19 | 哈尔滨工业大学（威海） | Catalytic functional ceramic membrane and preparation method and application thereof |
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Application publication date: 20191119 |