CN105000901B - The method preparing photocatalysis ceramics using Potassium Tetratitanate Whisker - Google Patents
The method preparing photocatalysis ceramics using Potassium Tetratitanate Whisker Download PDFInfo
- Publication number
- CN105000901B CN105000901B CN201510466396.3A CN201510466396A CN105000901B CN 105000901 B CN105000901 B CN 105000901B CN 201510466396 A CN201510466396 A CN 201510466396A CN 105000901 B CN105000901 B CN 105000901B
- Authority
- CN
- China
- Prior art keywords
- potassium tetratitanate
- whisker
- tetratitanate whisker
- speed
- dried
- 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.)
- Expired - Fee Related
Links
Abstract
The present invention relates to a kind of method preparing photocatalysis ceramics using Potassium Tetratitanate Whisker, include following steps：1), with Potassium Tetratitanate Whisker as primary raw material, after ball milling in ball mill, carry out surface modification treatment with silane coupler；2) again with modified Potassium Tetratitanate Whisker, plus deionized water is configured to ceramic size, and adds binding agent cryogenic glass powder, then adjusts pH with NaOH solution, high-speed stirred on magnetic stirring apparatuss；3) short chain amphiphile, amphiphilic molecule, stirring at low speed are added；4) high-speed stirred is foamed, and when air pocket starts to disappear, switches to the foam that low or first gear stirring obtains uniform and smooth；5) casting, puts into baking oven and is dried, and takes out, place in high temperature furnace and be fired into porous ceramicss by the sintering schedule setting after being cooled to room temperature.The present invention's：Using cheap, clean sunlight come catalytic degradation toxic organic pollutant, have efficiently, secondary pollution is few, the low advantage of environmental friendliness, energy cost.
Description
Technical field
The invention belongs to structure catalyst field is and in particular to a kind of prepare photocatalysis ceramics using Potassium Tetratitanate Whisker
Method.
Background technology
With industrial expansion, the originally limited water resource of the mankind is subject to increasingly serious polluting.Remove having in water body
Malicious harmful chemical, such as halogenated hydrocarbons, pesticide, surfactant etc. become an important process of field of Environment Protection.Photocatalytic-oxidation
Change method can be very fast by the hydro carbons in water, halides, hydroxy acid, surfactant, dyestuff, itrogenous organic substance, organophosphorus insecticide etc.
Ground complete oxidation is C02And H2The innocuous substances such as O.Photocatalyst has and can carry out under normal temperature and pressure, can thoroughly destroy
Organic substance.Not the advantages of do not have secondary pollution and expense less high.
But the load of photocatalyst and separation and recovery problem are always restriction photocatalytic activity agent expands application further
One of the reason.The research of early stage is more to be tended to for the suspension of catalyst and the waste water solution composition that contains hazardous substance to pass through ring
Stricture of vagina type, through-type or coaxial quartz tube interlayer composition flow cell, radiating light source direct radiation flow cell.Such structure of reactor is relatively
Simply, but catalyst cannot continuously use, the later stage processes and has to pass through the methods such as filter, centrifugation, flocculation and be isolated and reclaim, mistake
Journey is cumbersome.And the solvent due to suspension and other absorption to light for the component, so that radiation depth is affected.Therefore, seek
A kind of new catalyst fixing meanss are looked for be significant.
Patent CN200610088193.6 prepares composite Ti O with butyl titanate presoma2Colloidal sol, being added thereto to weight is
0.01～3% polyvinyl alcohol obtains complex sol, then successively by the asymmetric poroid transparent body.At least one in immersion complex sol
Minute, take out at least 5h is dried at 30～100 DEG C, repeat this step once more than, finally by it at 200～800 DEG C
At least roasting 0.5h, is obtained the seperation film with photocatalysis performance.Although catalyst is made thin film by this invention being conducive to being catalyzed
The recovery of agent, but its photocatalysis efficiency but substantially reduces, and also thin film strength and resistance to impact etc. are all very weak, and difficult
The application of the reality to obtain.
Content of the invention
The technical problem to be solved is for the deficiencies in the prior art, provides one kind to utilize Potassium Tetratitanate Whisker
The method preparing photocatalysis ceramics, gained porous ceramicss have certain intensity, have photocatalysis performance simultaneously；Achieve photocatalysis
The immobilization of agent, can Reusability it is achieved that resource.
The present invention solves its technical problem and adopts following technical scheme：Prepare photocatalysis ceramics using Potassium Tetratitanate Whisker
Method, include following steps：
1), with Potassium Tetratitanate Whisker as primary raw material, after ball milling in ball mill, carry out surface modification with silane coupler
Process；
2) again with modified Potassium Tetratitanate Whisker, plus deionized water is configured to ceramic size, and adds binding agent low temperature
Glass dust, then adjust pH with NaOH solution, high-speed stirred 1～5h on magnetic stirring apparatuss, so that Potassium Tetratitanate Whisker is sufficiently divided
Dissipate in deionized water；
3) press setting ratio and add short chain amphiphile, amphiphilic molecule as whisker coating material, stirring at low speed on magnetic stirring apparatuss
1～3h；
4) and then using frequency conversion agitator elder generation high-speed stirred foamed, when air pocket starts to disappear, switched to low speed
Shelves stirring a period of time is until obtain the foam of uniform and smooth；
5) casting immediately, after 24～48h being dried in atmosphere, is put in baking oven and is done with certain drying system
Dry, take out after being cooled to room temperature, place in high temperature furnace and be fired into porous ceramicss by the sintering schedule setting.
By such scheme, after ball milling, the draw ratio of Potassium Tetratitanate Whisker is 5～10.
By such scheme, step 1) described in the method that silane coupler carries out surface modification treatment be：Take certain matter
The Potassium Tetratitanate Whisker of amount adds deionized water and is configured to the slurry that solid content is 30wt%, is subsequently adding silane coupler, described
Silane coupler and Potassium Tetratitanate Whisker mass ratio are 3:1000, magnetic stirring apparatuss stir 5h, with vacuum filtration machine sucking filtration
Dry for standby in an oven afterwards.
By such scheme, step 2) ceramic size solid content be 10wt%～70wt%.
By such scheme, glass dust is 1 with the mass ratio of Potassium Tetratitanate Whisker:100～1:5.
By such scheme, step 2) slurry initial pH be 8～12 between.
By such scheme, step 2) described in cryogenic glass powder particle diameter be 1～10 μm.
By such scheme, described short chain amphiphile, amphiphilic molecule is progallin A, propylgallate, gallic acid fourth
Ester, n-amylamine, one of n-hexylamine and positive heptyl amice, described short chain amphiphile, amphiphilic molecule is 1 with the mass ratio of Potassium Tetratitanate Whisker:
80～1:40.
By such scheme, drying system is first 24～48h to be dried in atmosphere, then according to one at 40 DEG C～110 DEG C
Fixed thermograde is separately dried 2～4h.
By such scheme, sintering schedule is to be warming up to 600 DEG C from room temperature with the speed of 1～3 DEG C/min, then with 5～8 DEG C/
The speed of min rises to 700～900 DEG C, is incubated 2～4h, cools to room temperature with the furnace.
The principle of the present invention：There is the characteristic of photocatalysiss using Potassium Tetratitanate Whisker.Using it as main material, use for reference
Spheroidal particle self-stabilization foam mechanism (by inorganic particle is carried out surface-hydrophobicized process so as to have partially hydrophobic,
Such that it is able to irreversible absorption on gas-liquid interface, form the shell of rigidity, stop merging, draining and the rupture of foam, reach
The purpose of overlength stable foam) porous ceramicss are prepared using foaming.Compared with spheroidal particle stable foam, whisker is as steady
Infusion has significant difference.Firstly, since whisker specific surface area is bigger compared with spheroidal particle, in the case of same volume, whisker has more
Big surface area, surface desorption can be higher.Therefore, advantageously stablizing in foam.Secondly as whisker has certain length
Footpath ratio, can mutually overlap staggered in foam surface, form structure as Bird's Nest, such that it is able to preferably suppress the conjunction of foam
And, draining and rupture.Therefore, than general spheroidal particle advantageously in the presence steady in a long-term of foam.But, due to whisker
There is certain draw ratio, easily mutually overlap joint is wound around in aqueous, affects its dispersibility in water.By silane coupled
Agent carries out surface preparation and can improve dispersibility in water for the whisker, increases hydrophobicity (although amphiphile, amphiphilic molecule can increase simultaneously
Plus the hydrophobicity of whisker, but increase that can not be unlimited, after amphiphile, amphiphilic molecule reaches saturated concentration, continue add, whisker dredge
Aqueouss are difficult to increase).The increase of whisker surface hydrophobic both can promote the easier absorption of whisker on gas-liquid interface, increases
Foam height, can strengthen the hydrophobization effect between whisker simultaneously, advantageously form more stable spacial framework, increase
The stability of foam.Foam remains original shape, and nonjoinder is indeformable, does not rupture.Thus, it is dried with this kind of foam curing
Sinter the pottery obtaining and there is spherical structure, even aperture distribution.And the bird of whisker mutually winding will be retained on air vent wall
Nest architecture, can a certain degree of intensity improving material.
The present invention compared with prior art has the advantage that mainly：1. raw materials for production, equipment, simple to operate, whole work
Skill flow process is pollution-free.2. the present invention produce foamed ceramics can be good at solve powder catalyst granules trickle, be easy to
Reunite, not free settling, be difficult to the problem that reclaims it is achieved that the recycling of resource；It is using cheap, clean sunlight simultaneously
Carry out catalytic degradation toxic organic pollutant, have efficiently, secondary pollution is few, the low advantage of environmental friendliness, energy cost.It is applied to
The aspects such as sewage disposal, purify air, hydrolytic hydrogen production, photo-catalyst, surface cleaning.
Brief description
Fig. 1 is the photocatalysis ceramics gas cell distribution figure of embodiment 1；
Fig. 2 is embodiment 1 photocatalysis ceramics XRD spectra.
Specific embodiment
With reference to embodiment, the present invention will be further described in detail.
Embodiment 1：
Weigh Potassium Tetratitanate Whisker 27g, after ball milling 15h in ball mill, recording whisker draw ratio is 7 about, takes certain
The Potassium Tetratitanate Whisker of quality adds deionized water and is configured to the slurry that solid content is 30wt%, is subsequently adding silane coupler (silicon
Alkane coupling agent and Potassium Tetratitanate Whisker example in mass ratio are 3:1000), magnetic stirring apparatuss stir 5h, taken out with vacuum filtration machine
Dry for standby in an oven after filter；Again with modified whisker, plus deionized water is configured to the ceramic slurry that solid content is 44wt%
Material, and add the cryogenic glass powder of 0.8g as binding agent, then adjust pH to 11 with the NaOH solution of 1mol/L, in magnetic agitation
High-speed stirred 3h on device, makes Potassium Tetratitanate Whisker sufficiently dispersion in deionized water, add 0.6g progallin A as
Whisker coating material, stirring at low speed 1h on magnetic stirring apparatuss.Then foamed using frequency conversion agitator elder generation high-speed stirred,
When air pocket disappears soon, switch to low or first gear stirring a period of time until obtaining the foam of uniform and smooth.It is dried in atmosphere
After 48h, put in baking oven successively respectively at 40 DEG C, 50 DEG C, 60 DEG C, 80 DEG C, at 110 DEG C, 2h is dried, take out after being cooled to room temperature.
Put in high temperature furnace, be warming up to 600 DEG C from room temperature with the speed of 1.5 DEG C/min, then rise to 900 DEG C with the speed of 6 DEG C/min, protect
Warm 2h, cools to room temperature with the furnace.
Recording comprcssive strength to prepared sample with WDS digital display electronic universal testing machine is 2.56MPa, uses ultraviolet spectrometry light
It is 87.5% that degree meter (UV) tests it to the photocatalysis efficiency of methylene blue.The photocatalysis ceramics gas cell distribution figure of products obtained therefrom is such as
Shown in Fig. 1, its XRD spectra is as shown in Figure 2.
Embodiment 2：
Weigh Potassium Tetratitanate Whisker 30g, after ball milling 15h in ball mill, recording whisker draw ratio is 7 about, takes certain
The Potassium Tetratitanate Whisker of quality adds deionized water and is configured to the slurry that solid content is 30wt%, is subsequently adding silane coupler (silicon
Alkane coupling agent and Potassium Tetratitanate Whisker example in mass ratio are 3:1000), magnetic stirring apparatuss stir 5h, taken out with vacuum filtration machine
Dry for standby in an oven after filter；Again with modified whisker, plus deionized water is configured to the ceramic slurry that solid content is 47wt%
Material, and add the cryogenic glass powder of 1g as binding agent, then adjust pH to 11 with the NaOH solution of 1mol/L, in magnetic stirring apparatuss
Upper high-speed stirred 5h, makes Potassium Tetratitanate Whisker sufficiently dispersion in deionized water, adds 0.54g propylgallate as crystalline substance
Palpus coating material, stirring at low speed 1h on magnetic stirring apparatuss.Then foamed using frequency conversion agitator elder generation high-speed stirred, treated
When air pocket disappears soon, switch to low or first gear stirring a period of time until obtaining the foam of uniform and smooth.30h is dried in atmosphere
Afterwards, put in baking oven successively respectively at 45 DEG C, 55 DEG C, 65 DEG C, 85 DEG C, at 110 DEG C, 2h is dried, take out after being cooled to room temperature.Put
Enter in high temperature furnace, be warming up to 600 DEG C from room temperature with the speed of 2 DEG C/min, then rise to 800 DEG C with the speed of 7 DEG C/min, insulation
3h, cools to room temperature with the furnace.
With embodiment 1, the comprcssive strength of photocatalysis ceramics is 2.45MPa to method of testing, and photocatalysis efficiency is 8.92%.
Embodiment 3：
Weigh Potassium Tetratitanate Whisker 24g, after ball milling 15h in ball mill, recording whisker draw ratio is 7 about, takes certain
The Potassium Tetratitanate Whisker of quality adds deionized water and is configured to the slurry that solid content is 30wt%, is subsequently adding silane coupler (silicon
Alkane coupling agent and Potassium Tetratitanate Whisker example in mass ratio are 3:1000), magnetic stirring apparatuss stir 5h, taken out with vacuum filtration machine
Dry for standby in an oven after filter；Again with modified whisker, plus deionized water is configured to the ceramic slurry that solid content is 42wt%
Material, and add the cryogenic glass powder of 0.6g as binding agent, then adjust pH to 10 with the NaOH solution of 1mol/L, in magnetic agitation
High-speed stirred 4h on device, makes Potassium Tetratitanate Whisker sufficiently dispersion in deionized water, add 0.54g progallin A as
Whisker coating material, stirring at low speed 1h on magnetic stirring apparatuss.Then foamed using frequency conversion agitator elder generation high-speed stirred,
When air pocket disappears soon, switch to low or first gear stirring a period of time until obtaining the foam of uniform and smooth.It is dried in atmosphere
After 40h, put in baking oven successively respectively at 40 DEG C, 50 DEG C, 60 DEG C, 80 DEG C, at 110 DEG C, 2h is dried, take out after being cooled to room temperature.
Put in high temperature furnace, be warming up to 600 DEG C from room temperature with the speed of 1.5 DEG C/min, then rise to 900 DEG C with the speed of 5 DEG C/min, protect
Warm 3h, cools to room temperature with the furnace.
With embodiment 1, the comprcssive strength of photocatalysis ceramics is 3.19MPa to method of testing, and photocatalysis efficiency is 88.6%.
Embodiment 4：
Weigh Potassium Tetratitanate Whisker 27g, after ball milling 10h in ball mill, recording whisker draw ratio is 10 about, takes certain
The Potassium Tetratitanate Whisker of quality adds deionized water and is configured to the slurry that solid content is 30wt%, is subsequently adding silane coupler (silicon
Alkane coupling agent and Potassium Tetratitanate Whisker example in mass ratio are 3:1000), magnetic stirring apparatuss stir 5h, taken out with vacuum filtration machine
Dry for standby in an oven after filter；Again with modified whisker, plus deionized water is configured to the ceramic slurry that solid content is 45wt%
Material, and add the cryogenic glass powder of 1g as binding agent, then adjust pH to 9 with the NaOH solution of 1mol/L, in magnetic stirring apparatuss
Upper high-speed stirred 5h, makes Potassium Tetratitanate Whisker sufficiently dispersion in deionized water, adds 0.6g propylgallate as crystalline substance
Palpus coating material, stirring at low speed 2h on magnetic stirring apparatuss.Then foamed using frequency conversion agitator elder generation high-speed stirred, treated
When air pocket disappears soon, switch to low or first gear stirring a period of time until obtaining the foam of uniform and smooth.48h is dried in atmosphere
Afterwards, put in baking oven successively respectively at 40 DEG C, 60 DEG C, 80 DEG C, at 110 DEG C, 4h is dried, take out after being cooled to room temperature.Put into high temperature
In stove, it is warming up to 600 DEG C from room temperature with the speed of 3 DEG C/min, then rises to 800 DEG C with the speed of 7 DEG C/min, be incubated 2h, with stove
It is cooled to room temperature.
With embodiment 1, the comprcssive strength of photocatalysis ceramics is 2.61MPa to method of testing, and photocatalysis efficiency is 89.1%.
Embodiment 5：
Weigh Potassium Tetratitanate Whisker 33g, after ball milling 10h in ball mill, recording whisker draw ratio is 10 about, takes certain
The Potassium Tetratitanate Whisker of quality adds deionized water and is configured to the slurry that solid content is 30wt%, is subsequently adding silane coupler (silicon
Alkane coupling agent and Potassium Tetratitanate Whisker example in mass ratio are 3:1000), magnetic stirring apparatuss stir 5h, taken out with vacuum filtration machine
Dry for standby in an oven after filter；Again with modified whisker, plus deionized water is configured to the ceramic slurry that solid content is 50wt%
Material, and add the cryogenic glass powder of 1g as binding agent, then adjust pH to 11 with the NaOH solution of 1mol/L, in magnetic stirring apparatuss
Upper high-speed stirred 5h, makes Potassium Tetratitanate Whisker sufficiently dispersion in deionized water, adds 0.5g n-hexylamine as whisker surface
Dressing agent, stirring at low speed 3h on magnetic stirring apparatuss.Then foamed using frequency conversion agitator elder generation high-speed stirred, treated air pocket
During fast disappearance, switch to low or first gear stirring a period of time until obtaining the foam of uniform and smooth.After 24h being dried in atmosphere, put
Enter in baking oven successively respectively at 40 DEG C, 60 DEG C, 80 DEG C, at 110 DEG C, 3h is dried, take out after being cooled to room temperature.Put in high temperature furnace,
It is warming up to 600 DEG C from room temperature with the speed of 2 DEG C/min, then rises to 900 DEG C with the speed of 7 DEG C/min, be incubated 2h, cool to the furnace
Room temperature.
With embodiment 1, the comprcssive strength of photocatalysis ceramics is 2.18MPa to method of testing, and photocatalysis efficiency is 90.5%.
Embodiment 6：
Weigh Potassium Tetratitanate Whisker 27g, after ball milling 15h in ball mill, recording whisker draw ratio is 7 about, takes certain
The Potassium Tetratitanate Whisker of quality adds deionized water and is configured to the slurry that solid content is 30wt%, is subsequently adding silane coupler (silicon
Alkane coupling agent and Potassium Tetratitanate Whisker example in mass ratio are 3:1000), magnetic stirring apparatuss stir 5h, taken out with vacuum filtration machine
Dry for standby in an oven after filter；Again with modified whisker, plus deionized water is configured to the ceramic slurry that solid content is 44wt%
Material, and add the cryogenic glass powder of 1.5g as binding agent, then adjust pH to 11 with the NaOH solution of 1mol/L, in magnetic agitation
High-speed stirred 3h on device, makes Potassium Tetratitanate Whisker sufficiently dispersion in deionized water, adds 0.75g n-amylamine as whisker table
Face dressing agent, stirring at low speed 3h on magnetic stirring apparatuss.Then foamed using frequency conversion agitator elder generation high-speed stirred, treated air
During the fast disappearance of bubble, switch to low or first gear stirring a period of time until obtaining the foam of uniform and smooth.After 48h being dried in atmosphere,
Put in baking oven successively respectively at 45 DEG C, 55 DEG C, 65 DEG C, 85 DEG C, at 110 DEG C, 4h is dried, take out after being cooled to room temperature.Put into height
In warm stove, it is warming up to 600 DEG C from room temperature with the speed of 2 DEG C/min, then rises to 900 DEG C with the speed of 8 DEG C/min, be incubated 3h, with
Stove is cooled to room temperature.
With embodiment 1, the comprcssive strength of photocatalysis ceramics is 2.92MPa to method of testing, and photocatalysis efficiency is 87.2%.
Embodiment 7：
Weigh Potassium Tetratitanate Whisker 22g, after ball milling 15h in ball mill, recording whisker draw ratio is 7 about, takes certain
The Potassium Tetratitanate Whisker of quality adds deionized water and is configured to the slurry that solid content is 30wt%, is subsequently adding silane coupler (silicon
Alkane coupling agent and Potassium Tetratitanate Whisker example in mass ratio are 3:1000), magnetic stirring apparatuss stir 5h, taken out with vacuum filtration machine
Dry for standby in an oven after filter；Again with modified whisker, plus deionized water is configured to the ceramic slurry that solid content is 38wt%
Material, and add the cryogenic glass powder of 1g as binding agent, then adjust pH to 10 with the NaOH solution of 1mol/L, in magnetic stirring apparatuss
Upper high-speed stirred 5h, makes Potassium Tetratitanate Whisker sufficiently dispersion in deionized water, adds 0.7g n-amylamine as whisker surface
Dressing agent, stirring at low speed 2h on magnetic stirring apparatuss.Then foamed using frequency conversion agitator elder generation high-speed stirred, treated air pocket
During fast disappearance, switch to low or first gear stirring a period of time until obtaining the foam of uniform and smooth.After 40h being dried in atmosphere, put
Enter in baking oven successively respectively at 40 DEG C, 60 DEG C, 80 DEG C, at 110 DEG C, 2h is dried, take out after being cooled to room temperature.Put in high temperature furnace,
It is warming up to 600 DEG C from room temperature with the speed of 1.5 DEG C/min, then rises to 700 DEG C with the speed of 5 DEG C/min, be incubated 2h, furnace cooling
To room temperature.
With embodiment 1, the comprcssive strength of photocatalysis ceramics is 2.61MPa to method of testing, and photocatalysis efficiency is 85.3%.
Embodiment 8：
Weigh Potassium Tetratitanate Whisker 37g, after ball milling 10h in ball mill, recording whisker draw ratio is 7 about, takes certain
The Potassium Tetratitanate Whisker of quality adds deionized water and is configured to the slurry that solid content is 30wt%, is subsequently adding silane coupler (silicon
Alkane coupling agent and Potassium Tetratitanate Whisker example in mass ratio are 3:1000), magnetic stirring apparatuss stir 5h, taken out with vacuum filtration machine
Dry for standby in an oven after filter；Again with modified whisker, plus deionized water is configured to the ceramic slurry that solid content is 53wt%
Material, and add the cryogenic glass powder of 1g as binding agent, then adjust pH to 12 with the NaOH solution of 1mol/L, in magnetic stirring apparatuss
Upper high-speed stirred 2h, makes Potassium Tetratitanate Whisker sufficiently dispersion in deionized water, adds 0.5g propylgallate as crystalline substance
Palpus coating material, stirring at low speed 1h on magnetic stirring apparatuss.Then foamed using frequency conversion agitator elder generation high-speed stirred, treated
When air pocket disappears soon, switch to low or first gear stirring a period of time until obtaining the foam of uniform and smooth.24h is dried in atmosphere
Afterwards, put in baking oven successively respectively at 45 DEG C, 50 DEG C, 55 DEG C, 80 DEG C, at 110 DEG C, 2h is dried, take out after being cooled to room temperature.Put
Enter in high temperature furnace, be warming up to 600 DEG C from room temperature with the speed of 1.5 DEG C/min, then rise to 900 DEG C with the speed of 7 DEG C/min, insulation
3h, cools to room temperature with the furnace.
With embodiment 1, the comprcssive strength of photocatalysis ceramics is 2.08MPa to method of testing, and photocatalysis efficiency is 89.3%.
K prepared by the embodiment of the present invention 2,3,4,5,6,7,82Ti4O9Photocatalysis ceramics, its scanning electron photo and XRD
Collection of illustrative plates can be found in Fig. 1 and Fig. 2.
Claims (7)
1. the method preparing photocatalysis ceramics using Potassium Tetratitanate Whisker, includes following steps：
1), with Potassium Tetratitanate Whisker as primary raw material, after ball milling in ball mill, carry out surface modification treatment with silane coupler；
Described with the method that silane coupler carries out surface modification treatment is：The Potassium Tetratitanate Whisker taking certain mass adds deionized water
It is configured to the slurry that solid content is 30wt%, be subsequently adding silane coupler, described silane coupler and Potassium Tetratitanate Whisker matter
Amount ratio is 3:1000,5h is stirred on magnetic stirring apparatuss, with dry for standby in an oven after vacuum filtration machine sucking filtration；
2) again with modified Potassium Tetratitanate Whisker, plus deionized water is configured to ceramic size, and adds binding agent low temperature glass
Powder, then adjust pH with NaOH solution, high-speed stirred 1～5h on magnetic stirring apparatuss, so that Potassium Tetratitanate Whisker is sufficiently dispersed in
In deionized water；
3) press setting ratio and add short chain amphiphile, amphiphilic molecule as whisker coating material, on magnetic stirring apparatuss stirring at low speed 1～
3h；Described short chain amphiphile, amphiphilic molecule be progallin A, propylgallate, butyl gallate, n-amylamine, n-hexylamine and
One of positive heptyl amice, described short chain amphiphile, amphiphilic molecule is 1 with the mass ratio of Potassium Tetratitanate Whisker:80～1:40；
4) and then using frequency conversion agitator elder generation high-speed stirred foamed, when air pocket starts to disappear, switch to low or first gear and stir
Mix a period of time until obtaining the foam of uniform and smooth；
5) casting immediately, after 24～48h being dried in atmosphere, is put in baking oven and is dried with certain drying system,
Take out after being cooled to room temperature, place in high temperature furnace and be fired into porous ceramicss by the sintering schedule setting；Sintering schedule is from room
Temperature is warming up to 600 DEG C with the speed of 1～3 DEG C/min, then rises to 700～900 DEG C with the speed of 5～8 DEG C/min, is incubated 2～4h,
Cool to room temperature with the furnace.
2. described utilization Potassium Tetratitanate Whisker according to claim 1 prepares the method for photocatalysis ceramics it is characterised in that ball
After mill, the draw ratio of Potassium Tetratitanate Whisker is 5～10.
3. described utilization Potassium Tetratitanate Whisker according to claim 1 prepares the method for photocatalysis ceramics it is characterised in that walking
The ceramic size solid content of rapid 2) is 10wt%～70wt%.
4. described utilization Potassium Tetratitanate Whisker according to claim 1 prepares the method for photocatalysis ceramics it is characterised in that glass
Glass powder is 1 with the mass ratio of Potassium Tetratitanate Whisker:100～1:5.
5. described utilization Potassium Tetratitanate Whisker according to claim 1 prepares the method for photocatalysis ceramics it is characterised in that walking
The initial pH of the slurry of rapid 2) is between 8～12.
6. described utilization Potassium Tetratitanate Whisker according to claim 1 prepares the method for photocatalysis ceramics it is characterised in that walking
Cryogenic glass powder particle diameter described in rapid 2) is 1～10 μm.
7. described utilization Potassium Tetratitanate Whisker according to claim 1 prepares the method for photocatalysis ceramics it is characterised in that doing
Dry system is first 24～48h to be dried in atmosphere, is then separately dried 2 according to certain thermograde at 40 DEG C～110 DEG C
～4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510466396.3A CN105000901B (en) | 2015-07-31 | 2015-07-31 | The method preparing photocatalysis ceramics using Potassium Tetratitanate Whisker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510466396.3A CN105000901B (en) | 2015-07-31 | 2015-07-31 | The method preparing photocatalysis ceramics using Potassium Tetratitanate Whisker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105000901A CN105000901A (en) | 2015-10-28 |
| CN105000901B true CN105000901B (en) | 2017-03-08 |
Family
ID=54373819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510466396.3A Expired - Fee Related CN105000901B (en) | 2015-07-31 | 2015-07-31 | The method preparing photocatalysis ceramics using Potassium Tetratitanate Whisker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105000901B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116212891B (en) * | 2023-03-17 | 2024-02-13 | 常州大学 | Nanometer copper manganate/potassium titanate composite material and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518730B (en) * | 2009-04-01 | 2011-01-05 | 宇星科技发展(深圳)有限公司 | Composite nanometer titanium dioxide photocatalysis material and preparation method thereof |
| EP2443076B1 (en) * | 2009-06-19 | 2014-04-09 | Granitifiandre S.p.A. | Photocatalytic ceramic article and method for its production |
-
2015
- 2015-07-31 CN CN201510466396.3A patent/CN105000901B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105000901A (en) | 2015-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111001439B (en) | Perylene bisimide and composite photocatalytic material thereof, preparation method and application thereof in removing organic pollutants in water body | |
| CN101011654B (en) | Preparing method of activated carbon fibre loaded titanium oxide thin film and application method thereof | |
| RU2659271C1 (en) | Device for rapid processing of volatile organic exhaust gas and method for treating volatile organic gas | |
| CN104987115B (en) | The method preparing heat-insulation and heat-preservation pottery using crystal whisker of hexa potassium titanate | |
| CN104646066B (en) | A kind of preparation method of polymer/titanium dioxide multiple elements design photocatalysis film | |
| CN108579721B (en) | Preparation method of photocatalyst for air VOC treatment | |
| CN103752299A (en) | Method for preparing macroporous hollow-sphere titanium oxide photocatalytic material | |
| CN110203993B (en) | Composite filter element capable of being repeatedly used under microwave condition, preparation method and activation method thereof | |
| CN103880390A (en) | Infrared high shield core-shell structure opacifying agent for SiO2 aerogel and preparation method of opacifying agent | |
| CN104069803A (en) | Organic modified granular bentonite/attapulgite absorbent and preparation method thereof | |
| CN104801308B (en) | A kind of NiFe2O4/TiO2/ sepiolite composite photo-catalyst and preparation method thereof | |
| CN106588092A (en) | Photocatalytic zinc titanate porous ceramic and its preparation method and use | |
| CN105271263B (en) | A kind of low-density transparent silicon dioxide aerogel and preparation method thereof | |
| CN105000901B (en) | The method preparing photocatalysis ceramics using Potassium Tetratitanate Whisker | |
| CN106145379A (en) | Photocatalysis biological adsorption agent and its preparation method and application | |
| CN103553587B (en) | Preparation method and using method of graded hole TiO2 ceramic photocatalyst | |
| WO2021258856A1 (en) | Photocatalyst and application thereof in photocatalytic environmentally-friendly treatment of power batteries | |
| CN106865546B (en) | A kind of mesoporous micro-pore carbon material and its preparation method and application | |
| CN107670682A (en) | A kind of preparation method of high-specific surface area jellyfish shape carbonitride catalysis material | |
| CN110215915A (en) | A kind of preparation method of vermiculite/Diatomite-based Porous Ceramics photocatalytic plate | |
| CN109759047A (en) | A kind of preparation method of barium strontium aerogels | |
| CN106348339A (en) | Preparation method of density-adjustable hollow strontium titanate material | |
| CN110624585A (en) | Preparation method of carbon nitride-loaded photocatalytic network | |
| CN110511567A (en) | A kind of preparation method of photocatalysis composite membrane, photocatalysis composite membrane obtained and purposes | |
| CN103752301B (en) | Receiving bore alkali metal/titanates of alkali-earth metals photochemical catalyst and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20210731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |