CN107324780A - A kind of flat board catalytic ceramics film and its forming method and former - Google Patents
A kind of flat board catalytic ceramics film and its forming method and former Download PDFInfo
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- CN107324780A CN107324780A CN201710636421.7A CN201710636421A CN107324780A CN 107324780 A CN107324780 A CN 107324780A CN 201710636421 A CN201710636421 A CN 201710636421A CN 107324780 A CN107324780 A CN 107324780A
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- layer
- stainless steel
- flat board
- separating layer
- catalyst
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- 239000000919 ceramic Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 52
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 82
- 239000003054 catalyst Substances 0.000 claims abstract description 73
- 239000012528 membrane Substances 0.000 claims abstract description 61
- 238000000926 separation method Methods 0.000 claims abstract description 24
- 238000005245 sintering Methods 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 115
- 229910001220 stainless steel Inorganic materials 0.000 claims description 44
- 239000010935 stainless steel Substances 0.000 claims description 44
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 31
- 239000011229 interlayer Substances 0.000 claims description 23
- 238000007493 shaping process Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 14
- 239000004408 titanium dioxide Substances 0.000 claims description 14
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 12
- 238000007670 refining Methods 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 8
- -1 agglutinant Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 230000032683 aging Effects 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 6
- 238000004898 kneading Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000007600 charging Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 5
- 239000004014 plasticizer Substances 0.000 claims description 5
- 238000013019 agitation Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 2
- 229910052760 oxygen Inorganic materials 0.000 claims 2
- 239000001301 oxygen Substances 0.000 claims 2
- 229910052726 zirconium Inorganic materials 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 17
- 238000006555 catalytic reaction Methods 0.000 abstract description 13
- 238000010304 firing Methods 0.000 abstract description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 16
- 238000002360 preparation method Methods 0.000 description 14
- 239000000126 substance Substances 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 229960001296 zinc oxide Drugs 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 206010068052 Mosaicism Diseases 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 241000219095 Vitis Species 0.000 description 2
- 235000009754 Vitis X bourquina Nutrition 0.000 description 2
- 235000012333 Vitis X labruscana Nutrition 0.000 description 2
- 235000014787 Vitis vinifera Nutrition 0.000 description 2
- 235000008429 bread Nutrition 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 238000003421 catalytic decomposition reaction Methods 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 210000003765 sex chromosome Anatomy 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005234 chemical deposition Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 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
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 238000009938 salting Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- 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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- 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
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
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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
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
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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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
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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
- 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
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- 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
- B01J35/396—Distribution of the active metal ingredient
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
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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
-
- 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
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- C04B35/48—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 zirconium or hafnium oxides, zirconates, zircon or hafnates
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- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
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- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
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- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
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- 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
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- C04B2235/54—Particle size related information
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of flat board catalytic ceramics film for changing catalyst load condition, it includes supporting layer and separating layer, and the supporting layer and separating layer are prepared using one-time formed method；The separating layer is composited by catalyst material and membrane material；Catalyst material is uniformly distributed in separating layer or is partially submerged into separating layer, partial denudation.The downside of the separating layer is integrally formed after sintering with being interweaved on the upside of supporting layer, realizes the combination of supporting layer and separating layer.The invention also discloses a kind of forming method and shaped device of the flat board catalytic ceramics film for changing catalyst load condition.The present invention in supporter and film material by distinguishing doped catalyst, and utilize corresponding shaped device, the film layer of main separation and catalysis will be undertaken and the supporter one-shot forming of auxiliary catalysis function is undertaken, then by sintering process, both are once formed by a firing.
Description
Technical field
The present invention relates to a kind of flat board catalytic ceramics film and its forming method and former.
Background technology
Research of the ceramic membrane in water process is more and more, with the quickening and the reduction of cost of localization process, its
Application prospect in water process is boundless.Compared with being currently being widely used organic film, ceramic membrane has very high machinery strong
Higher flux can be used in degree and chemical stability, therefore running, but is easily caused under higher flux serious
The fouling membrane that fouling membrane, particularly organic matter are caused, conventional backwash technique is difficult to be controlled completely.Therefore control film is dirty
Dye as one of major obstacle of ceramic membrane popularization and application.Current common way is：Based on the excellent chemically stable of ceramic membrane
Property, directly contacted with the oxidant such as ozone, the ceramic integration technique of membrane of composition ozone can both improve pollutant removal, and energy
Fouling membrane is reduced, (Guo Jianning, ceramic membrane and its integrated technique handle the research of micro-polluted drinking water to increase membrane flux, and Tsing-Hua University is big
Learn, 2013；Fan little Jiang, ozone/processing micro-polluted raw research of ceramics integration technique of membrane, Tsing-Hua University, 2015).Integrated technique
The characteristics of combined with by ozone oxidation with membrane filtration, but current ceramic membrane is mostly Alpha-alumina material, its ozone
Catalytic oxidation effect is weaker, fails to give full play to the catalysis oxidation function of ozone.
In order to play the catalysis oxidation function of ozone, membrane process is improved to the removal efficiency of organic matter and control fouling membrane,
There is research by ceramic membrane modifying, make it have catalysis.The hydroxyl radical free radical oxidation of organic compounds generated by ozone decomposed.No
It is only capable of reducing the disinfection by-products formation potential in raw water, can also reduces the biodegradability that film goes out Organic substance in water, suppresses microorganism
Breeding etc..The catalysis of ceramic membrane is modified mainly by loading the material with catalysis on ceramic membrane, such as at present
Ferriferous oxide, Mn oxide and titanium oxide etc..Modified technique is typically to soak titanium, palladium, platinum, nickel isoreactivity component by surface
The load of the methods such as stain, ion exchange and chemical deposition is on the surface of the film or in immersion fenestra, and film is together with catalytic active component
Catalyst is constituted, film plays a part of separation and catalyst carrier.Modified catalytic ceramics film has compared with conventional catalyst
There are following features：Catalyst immobilization, realizes heterogeneous catalytic oxidation；Catalyst turns into a part for film, makees playing separation
With while, by micropore effect, force ozone to be contacted with catalyst and pollutant, add reaction rate；Catalyst is consolidated
Fixedization makes the operation and maintenance cost reduction of technique, and technique is compacter, has saved space cost.
For current ceramic membrane materials catalysis it is weaker the problem of, occur in that gold such as manganese, titanium, palladium, iron, rubidium, zinc, ceriums
Category loads to the study on the modification on alumina ceramic membrane surface, while also occurring in that many patents in this respect.Arranged through investigation, hair
Now the Patents on catalytic ceramics film preparation and shaping have：
1) a kind of device and method (application publication number CN102274757A) for preparing catalytic membrane, belongs to film device field,
Its core is the method for impregnating the salting liquid of catalyst by negative-pressure ward, catalyst is loaded in fenestra and film surface,
Uniform catalytic membrane is obtained after reduction, problem is that catalyst is not sintered, and its mechanical stability is likely that there are problem；
2) MnO2-TiO2 graphenes-porous, inorganic ceramic membrane low-temperature denitration catalyst and preparation method thereof (application publication number
CN102728348A), gas denitration field is belonged to, its core is prepared after inorganic ceramic film body, using infusion process by MnO2-
TiO2 is graphene-supported in film surface, is then sintered.The ceramic membrane of preparation is chemically in terms of stability and mechanical stability
Be not suitable for water treatment field；
3) a kind of method of modifying (application publication number CN103495345A) for water treatment inorganic catalytic membrane, belongs to Shui Chu
Reason field, its core is that catalyst is carried on into film surface using infusion process or laser deposition, without sintering process；
4) a kind of ozone catalytic function ceramic membrane and preparation method thereof and circulation coating unit (application publication number
CN104841292A), membrane material preparing technical field is belonged to, its core is, by successively impregnating the method for film in film surface system
Standby catalyst coatings, then sintered technique catalyst is carried on film surface.The catalyst that the method is formed still is divided into two with film
Individual part, in the backwash and chemical cleaning technology of water process, catalyst there may be unstability, and need to burn twice
Knot technique, energy consumption is higher；
5) a kind of carrier type titanium dioxide ultrafiltration membrane, its preparation method and application (CN102489172A), belong to environment dirty
Improvement field is contaminated, its core is, by dip-coating method, in ceramic film support area load titanium dioxide, and to utilize agglomerant
Being fixed of skill.Catalyst is still divided into two parts with supporter, and mechanical performance can not ensure, and be entered by two-step sintering technique
Prepared by row, cost is higher；
6) a kind of multifunctional flat ceramic membrane and its preparation technology (application publication number CN105000871A), belong to ceramic membrane
Preparing technical field, its core is on the supporter of preparation, by vacuum impregnation technology, catalyst to be carried on into film surface, then
Catalyst is fixed by sintering process.But between catalyst and supporter in terms of chemical stability, mechanical stability
With there is problem, it is impossible to meet the recoil and chemical cleaning technology requirement in water process；
7) a kind of preparation method (application publication number CN105396570A) of the photocatalyst of zinc oxide of ceramic membrane load, category
In catalysis technical field, its core is to use Best-Effort request calcination method, and one layer of zinc-oxide nano crystal seed is loaded in ceramic membrane surface,
Then hydro-thermal method+calcine technology is used, the photocatalyst of zinc oxide of ceramic membrane load is made.This catalytic membrane is only carried on film surface,
Mechanically and chemically stability is not high, and catalyst is prepared by several times with film, calcining, prepares cost higher.
Simultaneously in the patent of invention in terms of ceramic film support preparation, such as grant number CN102688700B, Shen Qing Publication
Number CN103381338A, application publication number CN104828929A, application publication number CN105000871A, application publication number
In CN105818260A patent, catalyst mode of loading and former that the present invention is hereinafter used are not referred to.
In summary, the method for modifying of current ceramic membrane is to utilize vacuum impregnation, spin-coating, multiple Best-Effort request etc. mostly
Technique, then by burning process, fenestra surface and film surface are carried on by catalyst.But most of research and patent do not consider
Machinery, chemical stability and the matching problem between ceramic membrane overlength service life of catalyst, catalyst is to be covered in film
The surface of supporter, and sintering neck is there may be during sintering, in water treatment field, commonly using high backwashing strength and harshness
Chemical cleaning technology, catalyst is likely to come off from film body, causes the catalytic capability of film to be lost.In addition, current catalytic membrane
Prepare using being first film-made, it is front and rear at least to need to fire 2 times the step of post-modification, energy consumption is added, the system of catalytic membrane is improved
Standby cost.
Therefore, how by catalyst and ceramic membrane one-shot forming, realize that integration system is standby, the chemistry and machine of fortifying catalytic agent
Tool stability, improves the degree of coupling of catalyst and film, is allowed to be up to the service life of more than ten years in water process with ceramic membrane
Match, and reduce preparation cost, as current urgent problem.
The content of the invention
The technical problem to be solved in the present invention is that the defect for overcoming prior art changes catalyst load condition there is provided one kind
Flat board catalytic ceramics film and its forming method and former, can solve the problem that the chemical stability of catalyst in catalytic ceramics film
With mechanical stability and membrane body mismatch problem, reduction catalytic membrane prepares cost, promotes the industrial volume production of catalytic ceramics film.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme：
One aspect of the present invention provide it is a kind of change catalyst load condition flat board catalytic ceramics film, it include supporting layer with
Separating layer, the supporting layer and separating layer are prepared using one-time formed method；The separating layer is by catalyst material and membrane material
Material is composited；Catalyst material is uniformly distributed in separating layer or is partially submerged into separating layer, partial denudation.
Further, the downside of the separating layer on the upside of supporting layer with being interweaved, and is integrally formed after sintering, realizes
The combination of supporting layer and separating layer.
Further, the aperture of separating layer is 1~5 μm, and thickness is 100~200 μm.
Further, the porosity of the support is 40~50%, and aperture is 5~8 μm, and its material is high purity aluminium oxide；
Catalyst material is dispersed in supporting layer or is partially submerged into supporting layer, partial denudation.
The second aspect of the invention provides a kind of shaping side for the flat board catalytic ceramics film for changing catalyst load condition
Method, it is concretely comprised the following steps：
Step 1, separation layer materials are prepared；
Step 2, support layer material is prepared；
Step 3, the material of separating layer and supporting layer is respectively put into the charging aperture of extrusion formation equipment, 1-10MPa's
Under extrusion pressure, using extrusion formation equipment, separation layer materials and support layer material are combined as a whole.
Further, step 1 is specially：
1) a certain amount of aluminum oxide or zirconium oxide are taken, particle diameter is 100-500nm, add pore creating material, binding agent, agglutinant,
Water, plasticizer, put it into ballmillmixer mixing；
2) in 30-70% ratio, the titanium dioxide or manganese dioxide for taking particle diameter to be 20-50nm are placed in dispersant, by force
Strong stirring 10h, it is standby；
3) under stirring, the titanium dioxide of suspension state or manganese dioxide are added to the aluminum oxide of ballmillmixer
Or in zirconium oxide, mix 2-10h；
4) separation layer materials mixed are put into vacuum kneading machine and carry out seal aging 12-24h. after mud refining, mud refining
Further, step 2 is specially：
1) a certain amount of aluminum oxide is taken, particle diameter is 5-10 μm, adds pore creating material, binding agent, agglutinant, water, plasticizer, will
It is put into ballmillmixer mixing；
2) in the ratio less than 30%, the titanium dioxide or manganese dioxide for taking appropriate particle diameter to be 200-500nm are placed in scattered
In agent, strong agitation 5-10h is standby；
3) under stirring, the titanium dioxide of suspension state or manganese dioxide are added to the aluminum oxide of ballmillmixer
Or in zirconium oxide, mix 2-10h；
4) separation layer materials mixed are put into vacuum kneading machine and carry out seal aging 12-24h after mud refining, mud refining.
The third aspect of the invention provides a kind of shaping for the flat board catalytic ceramics film for changing catalyst load condition and set
Standby, it includes solid stainless steel square column, and the both sides up and down of the solid stainless steel square column are with middle stainless steel interlayer, the reality
Supporting layer shaping area is formed between heart stainless steel square column and the middle stainless steel interlayer；Above and below the middle stainless steel interlayer
Both sides are with stainless steel casing, and separating layer shaping area is formed between the stainless steel casing and middle stainless steel interlayer；Described point
The side of absciss layer shaping area is provided with separation layer materials import, and the side of the supporting layer shaping area is provided with support layer material and entered
Mouthful；The opposite side of the supporting layer shaping area is provided with the outlet of Flat Membrane base substrate.
Preferably, the width of the middle stainless steel interlayer is less than the width of solid the stainless steel square column and stainless steel casing
Degree, is divided into material delivery area and material land by the former.
Preferably, the end of the stainless steel interlayer is provided with a wedge-shaped segment.
The catalyst of different-grain diameter is scattered in separating layer and supporting layer, and in the damascene structures of " grape bread " formula,
Partial catalyst is embedded in the inner surface of film surface or fenestra, with ozone contact, can complete the catalysis oxidation and organic matter of ozone
Decomposable process.Meanwhile, the damascene structures of catalyst make the membrane material on itself and periphery have larger contact area, it is ensured that urge
The mechanical stability of agent, solve catalytic mechanical stability and ceramic membrane body matches sex chromosome mosaicism.Even in using
Because backwash or Chemical cleaning etc. lose partial catalyst in journey, but membrane material can also lose simultaneously, new catalyst meeting
Again it is exposed, still can realizes the catalytic decomposition function of ozone, this structure provides for catalyst with matching for membrane body
Realization means.
In use, separation layer materials and support layer material use equal extrusion pressure, respectively enter different chargings
Mouthful, the moisture content of separation layer materials is higher than support layer material 5-10%, to balance both different transporting resistances and be easy to two kinds
The combination of material.Separating layer and support layer material are to convey gradually to be molded in forming process, in middle stainless steel interlayer wedge-shaped segment
Guiding under, both be combined with each other in land, because the moisture content of separating layer is higher and particle diameter is smaller, are partially separated layer material
Into supporting layer, the combination of materials at two layers is set more to stablize.
The core of the present invention is to utilize special shaped device and method, load shape of the change catalyst in ceramic membrane
Formula, improves matching degree of the catalyst with membrane body in terms of machinery, chemical stability, makes the industry of ozone catalytic ceramic membrane raw
Production and application are possibly realized.And be not then this hair on supporter pore size control, separating layer pore size control, firing heating schedule etc.
Bright core content, this part is similar to the program mentioned in most of inventions.
The beneficial effect that is reached of the present invention is：
The present invention utilizes corresponding shaped device by distinguishing doped catalyst in supporter and film material, will
Supporter one-shot forming of the film layer of main separation and catalysis with undertaking auxiliary catalysis function is undertaken, then passes through agglomerant
Skill, both are once formed by a firing.
The present invention passes through the catalyst of adulterated respectively in supporter and film material different proportion, different-grain diameter, catalysis
Agent is scattered in film layer and supporting layer, and in the damascene structures of " grape bread " formula, the damascene structures of catalyst make its with
The membrane material on periphery has larger contact area, it is ensured that the mechanical stability of catalyst, solves catalytic mechanical stable
Property match sex chromosome mosaicism with ceramic membrane body, even if in use because backwash or Chemical cleaning etc. make partial catalyst
Loss, but membrane material can also lose simultaneously, and new catalyst can be exposed again, still can realize the catalytic decomposition work(of ozone
Energy.Simultaneously because employing different-grain diameter and the catalyst material of content in separating layer and supporting layer, preparation cost is reduced.
It is additionally, since and employs one-shot forming and once sintered technique, the preparation cost of catalytic membrane is further reduced.
The present invention is no to be thought deeply from scientific research angle completely, but is conceived to the actual production and application of catalytic ceramics film
Aspect, employs the raw material that can be purchased or be processed with scale, and the content of the invention provides realization for the preparation of catalytic ceramics film
Approach, is conducive to its application in water process, while can also promote the technique progress of ceramic film preparation.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention
Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is shaped device floor map.
Fig. 2 is shaped device Section A-A schematic diagram.
Fig. 3 is shaped device section B-B schematic diagram.
Fig. 4 is the interface sem image of separating layer and supporting layer after firing.
In figure：1st, solid stainless steel square column, 2, stainless steel casing, 3, separating layer shaping area, 4, middle stainless steel interlayer, 5,
Supporting layer shaping area, 6, the outlet of Flat Membrane base substrate, 7, stainless steel interlayer end wedge shape, 8, separation layer materials, 9, support layer material,
10th, separation layer materials import, 11, support layer material import.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
A kind of flat board catalytic ceramics film and forming method for changing catalyst load condition, one kind changes catalyst load shape
The flat board catalytic ceramics film of state, mainly includes：Supporting layer and separating layer, catalyst are scattered in inside supporting layer and separating layer, or
It is embedded in supporting layer and the channel surfaces of separating layer.
As shown in Figures 1 to 3, a kind of former for the flat board catalytic ceramics film for changing catalyst load condition, it includes
Solid stainless steel square column 1, the both sides up and down of the solid stainless steel square column 1 are with middle stainless steel interlayer 4, described solid stainless
Supporting layer shaping area 5 is formed between steel square column 1 and the middle stainless steel interlayer 4；Up and down the two of the middle stainless steel interlayer 4
Gusset has stainless steel casing 2, and separating layer shaping area 3 is formed between the stainless steel casing 2 and middle stainless steel interlayer 4；It is described
The side of separating layer shaping area 3 is provided with separation layer materials import 10, and the side of the supporting layer shaping area 5 is provided with supporting layer
Material inlet 11；The opposite side of the supporting layer shaping area 5 is provided with Flat Membrane base substrate outlet 6.The middle stainless steel interlayer 4
Width be less than solid the stainless steel square column 1 and stainless steel casing 2 width, the former is divided into material delivery area a
With material land b.The end of the middle stainless steel interlayer 4 is provided with a wedge-shaped segment 7.
Specific forming method is as follows：
1) take a certain amount of aluminum oxide, particle diameter is 500nm, according to proper proportion add pore creating material, binding agent, agglutinant,
Water, plasticizer etc., put it into ballmillmixer mixing.In the ratio of quality of alumina 70%, the nanometer that particle diameter is 50nm is taken
Titanium dioxide, is placed in dispersant, strong agitation 10h.Under stirring, the titanium dioxide of suspension state is added into ball milling
In the aluminum oxide or zirconium oxide of mixer, 10h is mixed.The separation layer materials 8 mixed are put into vacuum kneading machine and carry out mud refining,
Seal aging 24h after mud refining 5h.
2) it is 5 μm of aluminum oxide to take a certain amount of particle diameter, according to proper proportion add pore creating material, binding agent, agglutinant, water,
Plasticizer etc., puts it into ballmillmixer mixing.By the 20% of quality of alumina, the titanium dioxide for taking particle diameter to be 200nm is put
In dispersant, strong agitation 10h.
3) under stirring, the titanium dioxide of suspension state is added to the aluminum oxide or zirconium oxide of ballmillmixer
In, mix 10h.The separation layer materials 8 mixed are put into vacuum kneading machine and carry out seal aging 24h after mud refining, mud refining 5h.
4) separation layer materials 8 and support layer material 9 are respectively put into the charging aperture 10 and charging aperture 11 of single lead screw ex truding briquetting machine,
Under 8.0MPa extrusion pressure, separating layer and support layer material respectively enter separating layer shaping area 3 and support under pressure
Formable layer area 5, membrane material is separated by middle stainless steel interlayer 4, is not in contact with each other.
4) when membrane material enters 1 area end of shaped device, under the guiding of middle stainless steel interlayer end wedge shape 7, enter
Enter the area of shaped device 2, supporting layer starts to contact and combined with separation layer materials.Because the moisture content of separation layer materials is higher than support
Layer material 5%, and particle diameter is smaller, therefore be partially separated layer material and enter supporting layer, the combination of materials at two layers is more stablized.
The area of shaped device 2 is completed after combined process, and catalytic ceramics film base substrate is exported by base substrate outlet 6.
5) base substrate of output is fired after drying, and can obtain flat board catalytic ceramics film.Obtained flat board catalytic ceramics film
Porosity 47%, its entire compression is 96% without cat ceramic film, and ozone decomposed speed improves 20%.
Fig. 4 is the interface sem image of separating layer and supporting layer after firing.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention's
Within protection domain.
Claims (10)
1. a kind of flat board catalytic ceramics film for changing catalyst load condition, it is characterised in that including supporting layer and separating layer, institute
Supporting layer and separating layer is stated to prepare using one-time formed method；The separating layer by catalyst material and membrane material it is compound and
Into；Catalyst material is uniformly distributed in separating layer or is partially submerged into separating layer, partial denudation.
2. a kind of flat board catalytic ceramics film for changing catalyst load condition according to claim 1, it is characterised in that institute
The downside of separating layer is stated with being interweaved on the upside of supporting layer, and is integrally formed after sintering, supporting layer and the knot of separating layer is realized
Close.
3. a kind of flat board catalytic ceramics film for changing catalyst load condition according to claim 1, it is characterised in that point
The aperture of absciss layer is 1~5 μm, and thickness is 100~200 μm.
4. a kind of flat board catalytic ceramics film for changing catalyst load condition according to claim 1, it is characterised in that institute
The porosity for stating support is 40~50%, and aperture is 5~8 μm, and its material is high purity aluminium oxide；Catalyst material is dispersed in
In supporting layer or it is partially submerged into supporting layer, partial denudation.
5. a kind of forming method of the flat board catalytic ceramics film of any described change catalyst load condition of Claims 1 to 4,
Characterized in that, concretely comprising the following steps：
Step 1, separation layer materials are prepared；
Step 2, support layer material is prepared；
Step 3, the material of separating layer and supporting layer is respectively put into the charging aperture of extrusion formation equipment, in 1-10MPa extrusion
Under pressure, using extrusion formation equipment, separation layer materials and support layer material are combined as a whole.
6. a kind of flat board catalytic ceramics film for changing catalyst load condition according to claim 5, it is characterised in that step
Rapid 1 is specially：
1) a certain amount of aluminum oxide or zirconium oxide are taken, particle diameter is 100-500nm, adds pore creating material, binding agent, agglutinant, water, increasing
Agent is moulded, ballmillmixer mixing is put it into；
2) in 30-70% ratio, the titanium dioxide or manganese dioxide for taking particle diameter to be 20-50nm are placed in dispersant, stirred strongly
10h is mixed, it is standby；
3) under stirring, the titanium dioxide of suspension state or manganese dioxide are added to the aluminum oxide or oxygen of ballmillmixer
Change in zirconium, mix 2-10h；
4) separation layer materials mixed are put into vacuum kneading machine and carry out seal aging 12-24h after mud refining, mud refining.
7. a kind of flat board catalytic ceramics film for changing catalyst load condition according to claim 5, it is characterised in that step
Rapid 2 are specially：
1) a certain amount of aluminum oxide is taken, particle diameter is 5-10 μm, adds pore creating material, binding agent, agglutinant, water, plasticizer, is put
Enter ballmillmixer mixing；
2) in the ratio less than 30%, the titanium dioxide or manganese dioxide for taking appropriate particle diameter to be 200-500nm are placed in dispersant
In, strong agitation 5-10h is standby；
3) under stirring, the titanium dioxide of suspension state or manganese dioxide are added to the aluminum oxide or oxygen of ballmillmixer
Change in zirconium, mix 2-10h；
4) separation layer materials mixed are put into vacuum kneading machine and carry out seal aging 12-24h after mud refining, mud refining.
8. it is a kind of change catalyst load condition flat board catalytic ceramics film former, it is characterised in that including it is solid not
Become rusty steel square column, and the both sides up and down of the solid stainless steel square column are with middle stainless steel interlayer, the solid stainless steel square column with
Supporting layer shaping area is formed between the middle stainless steel interlayer；The both sides up and down of the middle stainless steel interlayer are with stainless steel
Shell, separating layer shaping area is formed between the stainless steel casing and middle stainless steel interlayer；The one of the separating layer shaping area
Side is provided with separation layer materials import, and the side of the supporting layer shaping area is provided with support layer material import；The supporting layer
The opposite side of shaping area is provided with the outlet of Flat Membrane base substrate.
9. a kind of former of flat board catalytic ceramics film for changing catalyst load condition according to claim 8, its
It is characterised by, the width of the middle stainless steel interlayer is less than the width of solid the stainless steel square column and stainless steel casing, will
The former is divided into material delivery area and material land.
10. a kind of former of flat board catalytic ceramics film for changing catalyst load condition according to claim 8, its
It is characterised by, the end of the stainless steel interlayer is provided with a wedge-shaped segment.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110759730A (en) * | 2018-07-25 | 2020-02-07 | 比亚迪股份有限公司 | Preparation method of composite ceramic and composite ceramic |
| CN111851651A (en) * | 2020-08-18 | 2020-10-30 | 哈尔滨工业大学（威海） | Catalytic membrane filtration secondary water supply equipment and catalytic membrane filtration secondary water supply method adopting same |
| CN112316743A (en) * | 2020-10-22 | 2021-02-05 | 哈尔滨工业大学（威海） | Preparation method of low-cost low-density catalytic functional ceramic membrane |
| CN113713627A (en) * | 2021-08-13 | 2021-11-30 | 清华大学 | Ceramic ultrafiltration membrane with catalytic function and preparation method and application thereof |
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| CN104841292A (en) * | 2015-05-25 | 2015-08-19 | 哈尔滨工业大学 | Ozone-catalytic functional ceramic membrane, preparation method thereof and circulating coating device |
| CN105771675A (en) * | 2016-03-24 | 2016-07-20 | 景德镇陶瓷学院 | Ceramic membrane having asymmetric structure, and preparation method of ceramic membrane |
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| CN104841292A (en) * | 2015-05-25 | 2015-08-19 | 哈尔滨工业大学 | Ozone-catalytic functional ceramic membrane, preparation method thereof and circulating coating device |
| CN105771675A (en) * | 2016-03-24 | 2016-07-20 | 景德镇陶瓷学院 | Ceramic membrane having asymmetric structure, and preparation method of ceramic membrane |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110759730A (en) * | 2018-07-25 | 2020-02-07 | 比亚迪股份有限公司 | Preparation method of composite ceramic and composite ceramic |
| CN111851651A (en) * | 2020-08-18 | 2020-10-30 | 哈尔滨工业大学（威海） | Catalytic membrane filtration secondary water supply equipment and catalytic membrane filtration secondary water supply method adopting same |
| CN111851651B (en) * | 2020-08-18 | 2021-12-21 | 哈尔滨工业大学（威海） | Catalytic membrane filtration secondary water supply equipment and catalytic membrane filtration secondary water supply method adopting same |
| CN112316743A (en) * | 2020-10-22 | 2021-02-05 | 哈尔滨工业大学（威海） | Preparation method of low-cost low-density catalytic functional ceramic membrane |
| CN112316743B (en) * | 2020-10-22 | 2021-08-06 | 哈尔滨工业大学（威海） | Preparation method of low-cost low-density catalytic functional ceramic membrane |
| CN113713627A (en) * | 2021-08-13 | 2021-11-30 | 清华大学 | Ceramic ultrafiltration membrane with catalytic function and preparation method and application thereof |
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