CN105944705B - A kind of TiO2-SiO2The preparation method of porous material - Google Patents
A kind of TiO2-SiO2The preparation method of porous material Download PDFInfo
- Publication number
- CN105944705B CN105944705B CN201610292812.7A CN201610292812A CN105944705B CN 105944705 B CN105944705 B CN 105944705B CN 201610292812 A CN201610292812 A CN 201610292812A CN 105944705 B CN105944705 B CN 105944705B
- Authority
- CN
- China
- Prior art keywords
- porous material
- sio
- citric acid
- solution
- tio
- 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.)
- Active
Links
- 239000011148 porous material Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 229910003082 TiO2-SiO2 Inorganic materials 0.000 claims abstract description 22
- 239000002270 dispersing agent Substances 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims abstract description 6
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims abstract description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 99
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 22
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 14
- 239000000908 ammonium hydroxide Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 229910052681 coesite Inorganic materials 0.000 claims description 8
- 229910052906 cristobalite Inorganic materials 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052682 stishovite Inorganic materials 0.000 claims description 8
- 229910052905 tridymite Inorganic materials 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- 150000002500 ions Chemical class 0.000 claims description 7
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 229960001484 edetic acid Drugs 0.000 claims description 6
- 238000001879 gelation Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 5
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 5
- 239000011975 tartaric acid Substances 0.000 claims description 5
- 235000002906 tartaric acid Nutrition 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims 1
- 125000003827 glycol group Chemical group 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 6
- 239000008367 deionised water Substances 0.000 abstract 1
- 229910021641 deionized water Inorganic materials 0.000 abstract 1
- 238000009472 formulation Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 5
- 230000001699 photocatalysis Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 229960003511 macrogol Drugs 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 229940068918 polyethylene glycol 400 Drugs 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- TZBAVQKIEKDGFH-UHFFFAOYSA-N n-[2-(diethylamino)ethyl]-1-benzothiophene-2-carboxamide;hydrochloride Chemical compound [Cl-].C1=CC=C2SC(C(=O)NCC[NH+](CC)CC)=CC2=C1 TZBAVQKIEKDGFH-UHFFFAOYSA-N 0.000 description 1
- 239000011858 nanopowder Substances 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- B01J21/08—Silica
-
- B01J35/39—
-
- B01J35/60—
-
- B01J35/651—
Abstract
The invention discloses a kind of TiO2‑SiO2The preparation method of porous material, using butyl titanate and ethyl orthosilicate as raw material, absolute ethyl alcohol and deionized water are solvent, so that uniform ion is present in xerogel powder using dispersant, then this xerogel direct pressing is molded, thermally treated to can be obtained TiO2‑SiO2Porous material；This method short preparation period, process equipment are simple, at low cost, due to being utilized dispersant formulation appropriate, the pore-size of gained porous material and are more evenly distributed.
Description
Technical field
The invention belongs to field of material technology, more particularly to a kind of TiO2-SiO2The preparation method of porous material.
Background technology
Nano-TiO2-SiO2Composite material is a kind of efficient photochemical catalyst, with larger specific surface area, light absorptive
Can be strong, therefore it is with excellent photocatalytic, can be widely used in air purification, organic matter the fields such as degradation.Nanometer
TiO2-SiO2Microscopic appearance, grain size, crystalline phase composition and the specific surface area of composite powder material are affected to its photocatalysis performance,
With TiO2-SiO2The reduction of composite powder material grain size, surface-active is bigger, and photocatalytic activity is bigger.But specific surface
Long-pending increase easily causes TiO2-SiO2The agglomeration of composite nano powder, this will be unfavorable for TiO2-SiO2The light of composite granule
Catalytic effect.Synthesize TiO2-SiO2Porous material, when the hole of porous material is trepanning, hole is small and Size Distribution is more uniform
When, you can agglomeration traits are effectively solved, higher surface-active can be kept, to have higher photocatalytic activity.
Invention content
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of TiO2-SiO2Porous material
Preparation method has the characteristics that simple production process, equipment requirement are simple, the period is short.
To achieve the goals above, the technical solution adopted by the present invention is：
A kind of TiO2-SiO2The preparation method of porous material, includes the following steps：
(1) citric acid is dissolved in ammonium hydroxide and obtains citric acid solution, measure 1/5 citric acid solution, by ethyl orthosilicate
It is spare to be dissolved in wherein formation solution A；Butyl titanate is dissolved in remaining citric acid solution and forms solution B；
(2) dispersant is added in solution B, adds absolute ethyl alcohol and stirring dissolving, adjust pH values later to 6~8 acquisitions
Sol B；
(3) by sol B at 80~85 DEG C 15~30min of water-bath, solution A is added thereto under constant stirring, continue
In this water bath condition down toward gelation, then drying forms xerogel at 140~160 DEG C, is ground after natural drying at room temperature
Honed sieve obtains xerogel powder；
(4) by the blocky blank of material of the directly dry-pressing formed formation of the dry powder after sieving, finally blocky blank of material is carried out
It is thermally treated resulting in TiO2-SiO2Porous material.
In the step (1), the amount of ammonium hydroxide, which is subject to, can dissolve citric acid.
In the step (1), the molar ratio of Si and Ti are 1：(3~10), and the sum of Si ions and Ti ions and step 1
The molar ratio of middle citric acid total amount is 1：(1~2).
In the step (2), the dispersant is by ethylenediamine tetra-acetic acid, citric acid, diethylenetriamine pentacarboxylic acid, winestone
Acid, ethylene glycol and polyethylene glycol composition.
After the dispersant is added in solution B, the concentration range of dispersant each component is 0~0.5mol/L.
In the step (2), the volume of absolute ethyl alcohol is the 1/2~1 of ammonium hydroxide total volume.
The heat treatment is to carry out burying burning in ZnO powders, and temperature is 600~800 DEG C.
Compared with prior art, the beneficial effects of the invention are as follows：TiO provided by the invention2-SiO2The preparation of porous material
In method, with ethylenediamine tetra-acetic acid, citric acid, diethylenetriamine pentacarboxylic acid, tartaric acid, ethylene glycol, polyethylene glycol 400, poly- second
Glycol 4000, Macrogol 6000 etc. directly carry out the gelation process of complexing foaming as dispersant, by controlling each substance
Concentration, the dosage of especially each dispersant makes the xerogel of suitable straight forming, this can not only reduce granulation, old
Rotten process can also be such that crystallization process is completed with one step of sintering.In conjunction with the heat treatment process for burying burning, using organic matter foaming and
Decomposition combustion process forms TiO2-SiO2Porous material.This method and process step is few, short preparation period, equipment are simple, cost
It is low, and gained TiO2-SiO2The pore-size and distribution controllability of porous material are good.
Specific implementation mode
With reference to the embodiment embodiment that the present invention will be described in detail.
Embodiment 1
A kind of TiO2-SiO2The preparation method of porous material, includes the following steps：
(1) citric acid being dissolved in ammonium hydroxide, the amount of ammonium hydroxide, which is subject to, can dissolve citric acid, measure 1/5 citric acid solution,
It is spare that ethyl orthosilicate is dissolved in wherein formation solution A；Butyl titanate is dissolved in remaining citric acid solution and forms solution B,
In, Si：Ti (molar ratio)=1：3, ion：Citric acid (molar ratio)=1：1.
(2) weigh a certain amount of dispersant (by ethylenediamine tetra-acetic acid, citric acid, diethylenetriamine pentacarboxylic acid, tartaric acid,
Ethylene glycol, polyethylene glycol composition, wherein polyethylene glycol include polyethylene glycol 400, Macrogol 4000 and Macrogol 6000 again)
It is added in solution B, the concentration of dispersant each component is controlled in 0.5mol/L.Absolute ethyl alcohol and stirring is added and dissolves (absolute ethyl alcohol
Volume is the 1/2 of step 1 ammonium hydroxide volume), pH value is adjusted later to 6~8 i.e. acquisition sol B.
(3) by sol B at 85 DEG C 15~30min of water-bath, solution A is added thereto under constant stirring, continue herein
Water bath condition is down toward gelation.Drying forms xerogel at 140 DEG C again, is at room temperature after natural drying ground powder
Sieve.
(4) the direct dry pressing of dry powder after sieving is formed into blocky blank of material, finally by blocky blank of material in ZnO
It carries out burying burning i.e. acquisition TiO in powder2-SiO2Porous material, heat treatment temperature are 600 DEG C.Gained TiO2-SiO2Porous material
Middle particle size is about 100nm~500nm, and gap size is 50nm~150nm.
Embodiment 2
A kind of TiO2-SiO2The preparation method of porous material, includes the following steps：
(1) citric acid being dissolved in ammonium hydroxide, the amount of ammonium hydroxide, which is subject to, can dissolve citric acid, measure 1/5 citric acid solution,
It is spare that ethyl orthosilicate is dissolved in wherein formation solution A；Butyl titanate is dissolved in remaining citric acid solution and forms solution B,
In, Si：Ti (molar ratio)=1：10, ion：Citric acid (molar ratio)=1：2.
(2) weigh a certain amount of dispersant (by ethylenediamine tetra-acetic acid, citric acid, diethylenetriamine pentacarboxylic acid, tartaric acid,
Ethylene glycol, polyethylene glycol composition) it is added in solution B, the concentration of dispersant each component is controlled in 0.4mol/L.Absolute ethyl alcohol is added
Stirring and dissolving (volume of absolute ethyl alcohol is identical as step 1 ammonium hydroxide volume) adjusts pH value to 6~8 i.e. acquisition sol B later.
(3) by sol B at 80 DEG C 15~30min of water-bath, solution A is added thereto under constant stirring, continue herein
Water bath condition is down toward gelation.Drying forms xerogel at 150 DEG C again, is at room temperature after natural drying ground powder
Sieve.
(4) the direct dry pressing of dry powder after sieving is formed into blocky blank of material, finally by blocky blank of material in ZnO
It carries out burying burning i.e. acquisition TiO in powder2-SiO2Porous material, heat treatment temperature are 800 DEG C.Gained TiO2-SiO2Porous material
Middle particle size is about 100nm~500nm, and gap size is 50nm~150nm.
Embodiment 3
A kind of TiO2-SiO2The preparation method of porous material, includes the following steps：
(1) citric acid being dissolved in ammonium hydroxide, the amount of ammonium hydroxide, which is subject to, can dissolve citric acid, measure 1/5 citric acid solution,
It is spare that ethyl orthosilicate is dissolved in wherein formation solution A；Butyl titanate is dissolved in remaining citric acid solution and forms solution B,
In, Si：Ti (molar ratio)=1：5, ion：Citric acid (molar ratio)=1：1.5.
(2) weigh a certain amount of dispersant (by ethylenediamine tetra-acetic acid, citric acid, diethylenetriamine pentacarboxylic acid, tartaric acid,
Ethylene glycol, polyethylene glycol composition) be added in solution B, the control of the concentration of dispersant each component 0.01,0.1,0.1,0.2,0.2,
0.5mol/L.Absolute ethyl alcohol and stirring dissolving (volume of absolute ethyl alcohol is the 3/4 of ammonium hydroxide volume) is added, adjusts pH value later to 6
~8 obtain sol B.
(3) by sol B at 80 DEG C DEG C 15~30min of water-bath, solution A is added thereto under constant stirring, continue exist
This water bath condition is down toward gelation.Drying forms xerogel at 160 DEG C again, is at room temperature after natural drying ground powder
Sieving.
(4) the direct dry pressing of dry powder after sieving is formed into blocky blank of material, finally by blocky blank of material in ZnO
It carries out burying burning i.e. acquisition TiO in powder2-SiO2Porous material, heat treatment temperature are 700 DEG C.Gained TiO2-SiO2Porous material
Middle particle size is about 100nm~500nm, and gap size is 50nm~150nm.
Claims (5)
1. a kind of TiO2-SiO2The preparation method of porous material, which is characterized in that include the following steps：
(1) citric acid is dissolved in ammonium hydroxide and obtains citric acid solution, measured 1/5 citric acid solution, ethyl orthosilicate is dissolved in
It is spare wherein to form solution A；Butyl titanate is dissolved in remaining citric acid solution and forms solution B；
(2) dispersant is added in solution B, adds absolute ethyl alcohol and stirring dissolving, adjust pH value later to 6~8 acquisition colloidal sols
B；The dispersant is by ethylenediamine tetra-acetic acid, citric acid, diethylenetriamine pentacarboxylic acid, tartaric acid, ethylene glycol and polyethylene glycol group
At after dispersant is added in solution B, the concentration range of dispersant each component is 0~0.5mol/L and cannot take 0；
(3) by sol B at 80~85 DEG C 15~30min of water-bath, solution A is added thereto under constant stirring, continue herein
Water bath condition is down toward gelation, then drying forms xerogel at 140~160 DEG C, is ground after natural drying at room temperature
Sieve obtains xerogel powder；
(4) by the blocky blank of material of the directly dry-pressing formed formation of the dry powder after sieving, blocky blank of material is finally subjected to hot place
Reason obtains TiO2-SiO2Porous material.
2. TiO according to claim 12-SiO2The preparation method of porous material, which is characterized in that in the step (1), ammonia
The amount of water, which is subject to, can dissolve citric acid.
3. TiO according to claim 12-SiO2The preparation method of porous material, which is characterized in that in the step (1), Si
Molar ratio with Ti is 1：(3~10), and the molar ratio of the sum of Si ions and Ti ions and citric acid total amount in step 1 is 1：(1
~2).
4. TiO according to claim 12-SiO2The preparation method of porous material, which is characterized in that in the step (2), nothing
The volume of water-ethanol is the 1/2~1 of ammonium hydroxide total volume.
5. TiO according to claim 12-SiO2The preparation method of porous material, which is characterized in that it is described heat treatment be
It carries out burying burning in ZnO powders, temperature is 600~800 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610292812.7A CN105944705B (en) | 2016-05-05 | 2016-05-05 | A kind of TiO2-SiO2The preparation method of porous material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610292812.7A CN105944705B (en) | 2016-05-05 | 2016-05-05 | A kind of TiO2-SiO2The preparation method of porous material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105944705A CN105944705A (en) | 2016-09-21 |
| CN105944705B true CN105944705B (en) | 2018-09-18 |
Family
ID=56914514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610292812.7A Active CN105944705B (en) | 2016-05-05 | 2016-05-05 | A kind of TiO2-SiO2The preparation method of porous material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105944705B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890326A (en) * | 2010-07-21 | 2010-11-24 | 陕西科技大学 | Method for preparing TiO2/SiO2 composite microspheres |
| CN101891206A (en) * | 2010-07-21 | 2010-11-24 | 陕西科技大学 | Preparation method of SiO2/TiO2 composite microspheres |
| CN101891974A (en) * | 2010-07-21 | 2010-11-24 | 陕西科技大学 | Method for preparing TiO2/SiO2 composite powder |
| CN104003411A (en) * | 2014-05-16 | 2014-08-27 | 北京科技大学 | Preparation method of lithium silicate porous material used for absorption of high temperature CO2 |
-
2016
- 2016-05-05 CN CN201610292812.7A patent/CN105944705B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890326A (en) * | 2010-07-21 | 2010-11-24 | 陕西科技大学 | Method for preparing TiO2/SiO2 composite microspheres |
| CN101891206A (en) * | 2010-07-21 | 2010-11-24 | 陕西科技大学 | Preparation method of SiO2/TiO2 composite microspheres |
| CN101891974A (en) * | 2010-07-21 | 2010-11-24 | 陕西科技大学 | Method for preparing TiO2/SiO2 composite powder |
| CN104003411A (en) * | 2014-05-16 | 2014-08-27 | 北京科技大学 | Preparation method of lithium silicate porous material used for absorption of high temperature CO2 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105944705A (en) | 2016-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101346313A (en) | Methods for production of titanium oxide particles, and particles and preparations produced thereby | |
| CN104307501B (en) | A kind of preparation method of the nano zine oxide as photochemical catalyst | |
| CN105000567B (en) | A kind of preparation method of high-dispersion nano silicon dioxide | |
| CN105217676B (en) | Titania aerogel with nanometer sheet and nano-porous structure and preparation method thereof | |
| CN107601581A (en) | A kind of double pore dimension structure nano crystalline substance cobalt acetate powders and preparation method thereof | |
| CN103464130B (en) | A kind of method preparing the adjustable titanium dioxide mesoporous material in aperture | |
| CN105502480B (en) | Hydrangea-like strontium titanate nano powder preparation method | |
| CN105944705B (en) | A kind of TiO2-SiO2The preparation method of porous material | |
| CN105964235B (en) | A kind of preparation method of poriferous titanium dioxide-silica bulk | |
| CN103991897B (en) | Parallelepiped zinc oxide aggregate and preparation method thereof | |
| CN105948809A (en) | Preparation method of porous ZnO block material | |
| CN106564943B (en) | A kind of near infrared ray reflective titanium dioxide zinc oxide self-assembled material and preparation method | |
| CN106430263B (en) | A kind of preparation method of magnesium oxide nanoparticle | |
| CN104528814A (en) | Preparation method and product of CaTi2O4(OH)4 diamond nanosheet with lamellar structure | |
| CN104495947B (en) | A kind of method preparing receiving bore croci | |
| CN104227017A (en) | Preparation method of silver nanoparticle with controllable particle size | |
| CN105944706B (en) | A kind of SiO2-TiO2The preparation method of porous material | |
| CN107151830B (en) | A kind of preparation method of the composite high-molecular fiber for high shading rate screen cloth | |
| CN105797699B (en) | A kind of preparation method of porous silica-titanium dioxide bulk | |
| CN105967721A (en) | Preparation method of Bi2SiO5 porous material | |
| CN107892326A (en) | Rutile Type TiO2The preparation method and product of nano-rod assembly | |
| CN107777718A (en) | A kind of Y2O3Nano-powder and preparation method thereof | |
| CN105967747A (en) | Stable-state Bi4Si3O12 porous material preparation method | |
| CN105948805A (en) | Preparation method of titanium dioxide porous material | |
| CN105967724A (en) | Preparation method of zinc oxide porous material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |