CN1618736A - Preparation method of monodispersed nano-mesopore molecular sieve - Google Patents
Preparation method of monodispersed nano-mesopore molecular sieve Download PDFInfo
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- CN1618736A CN1618736A CN 200310105134 CN200310105134A CN1618736A CN 1618736 A CN1618736 A CN 1618736A CN 200310105134 CN200310105134 CN 200310105134 CN 200310105134 A CN200310105134 A CN 200310105134A CN 1618736 A CN1618736 A CN 1618736A
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- molecular sieve
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- nonionogenic tenside
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- silicon based
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- 239000002808 molecular sieve Substances 0.000 title claims abstract description 30
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000007791 liquid phase Substances 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 32
- 239000010703 silicon Substances 0.000 claims description 32
- 229910052710 silicon Inorganic materials 0.000 claims description 32
- 238000003756 stirring Methods 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- 241000282326 Felis catus Species 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 11
- 239000013543 active substance Substances 0.000 claims description 10
- 238000001556 precipitation Methods 0.000 claims description 10
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 5
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 4
- 239000003637 basic solution Substances 0.000 claims description 4
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 4
- 150000002170 ethers Chemical class 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- XJWSAJYUBXQQDR-UHFFFAOYSA-M dodecyltrimethylammonium bromide Chemical group [Br-].CCCCCCCCCCCC[N+](C)(C)C XJWSAJYUBXQQDR-UHFFFAOYSA-M 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000012716 precipitator Substances 0.000 claims description 3
- 150000005846 sugar alcohols Polymers 0.000 claims description 3
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- 238000003786 synthesis reaction Methods 0.000 claims description 2
- XXZNHVPIQYYRCG-UHFFFAOYSA-N trihydroxy(propoxy)silane Chemical compound CCCO[Si](O)(O)O XXZNHVPIQYYRCG-UHFFFAOYSA-N 0.000 claims description 2
- SZEMGTQCPRNXEG-UHFFFAOYSA-M trimethyl(octadecyl)azanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C SZEMGTQCPRNXEG-UHFFFAOYSA-M 0.000 claims description 2
- 229960004418 trolamine Drugs 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000010189 synthetic method Methods 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 239000011148 porous material Substances 0.000 abstract description 11
- 210000001367 artery Anatomy 0.000 abstract 1
- 239000003093 cationic surfactant Substances 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- 239000002736 nonionic surfactant Substances 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 22
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 20
- 239000002245 particle Substances 0.000 description 20
- 230000005540 biological transmission Effects 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 11
- 229910021529 ammonia Inorganic materials 0.000 description 10
- 238000002336 sorption--desorption measurement Methods 0.000 description 10
- 238000002441 X-ray diffraction Methods 0.000 description 9
- 238000001914 filtration Methods 0.000 description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 229920000463 Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) Polymers 0.000 description 4
- -1 polyol ester Chemical class 0.000 description 4
- 239000013335 mesoporous material Substances 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 238000000018 DNA microarray Methods 0.000 description 1
- 102220500397 Neutral and basic amino acid transport protein rBAT_M41T_mutation Human genes 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 239000011858 nanopowder Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
An individually dispersed nano-class mesoporous molecular sieve MCM-41 is prepared by chemical liquid-phase deposition method, where the cationic surfactant is used as template agent and the non-ionic surfactant is used as disperser. Its advantages are adjustable granularity (40-100 nm), high dispersity, ordered arteries, and large specific surface area and pore volume.
Description
Technical field
The invention belongs to technical field of inorganic nanometer material, be specifically related to the preparation method of the mesoporous silicon based MCM-41 molecular sieve of a kind of dispersed nano.
Technical background
The limited aperture of traditional zeolite molecular sieve has been broken in the appearance of novel mesopore molecular sieve M41S family material, makes the research of molecular screen material and application enter a new era, also makes catalytic material of new generation become the research focus of catalysis, material circle simultaneously.In the novel mesoporous material of this class, MCM-41 arranges the duct because of it has uniform six sides, higher specific surface area, thermostability and potential catalytic performance and receive much attention preferably.At present the research report of synthetic, the performance of relevant silica-based MCM-41 molecular sieve, formation mechanism, structure and application constantly occurs, but yet there are no report with regard to the research of the silica-based MCM-41 molecular sieve of solution nano level powder reuniting problem.Nano level MCM-41 molecular sieve powder as other nano-powder, is very easily reunited because of its special surface tissue, and the existence of coacervate has a strong impact on its performance and application.
Summary of the invention
The object of the present invention is to provide the preparation method of the mesoporous silicon based MCM-41 molecular sieve of a kind of dispersed nano, this method is that the utilization hydrophilic radical is that polyol ester, polyethenoxy ether class nonionogenic tenside are dispersion agent, form white pulpous state precipitin reaction liquid, again after filtration, washing, drying at room temperature and roasting, synthesize evenly spherical mesoporous silica-based MCM-41 molecular sieve of single dispersion, order is good, specific surface area is high nano level.
Technical scheme of the present invention is:
The preparation method of the mesoporous silicon based MCM-41 molecular sieve of a kind of dispersed nano, under gentle alkaline condition, with the cats product is template, with the nonionogenic tenside is dispersion agent, adopt the chemical liquid phase precipitator method to prepare the mesoporous silicon based MCM-41 molecular sieve of dispersed nano, concrete synthesis step is as follows:
Cats product and nonionogenic tenside are joined in the basic solution, under 30～80 ℃ of temperature, fully stir, after treating that tensio-active agent dissolves fully, the silicon source is joined in this solution, the mol ratio in alkali source and silicon source is 0.20～60.0, the mol ratio in deionized water and silicon source is 60～2000, the mol ratio in cats product and silicon source is 0.05～0.50, the mol ratio of nonionogenic tenside and cats product is 0.001～0.6, continuously stirring is 0.25～4.0 hour under 20-70 ℃ of temperature of reaction, generates white pulpous state precipitation; Filter then, washing, drying at room temperature; Through 500 ℃～600 ℃ high-temperature roastings 6～10 hours, promptly obtain the mesoporous silicon based MCM-41 molecular sieve of dispersed nano of white powder again.
It is polyethenoxy ether class nonionogenic tenside or polyalcohols polymer nonionogenic tenside that nonionogenic tenside of the present invention adopts hydrophilic radical, and molecular weight is 500～50000.
Cats product of the present invention is a kind of of long-chain quaternary ammonium salts such as Trimethyllaurylammonium bromide, cetyl trimethylammonium bromide, octadecyl trimethylammonium bromide.
Silicon of the present invention source is a kind of of tetraethoxy, methyl silicate, positive silicic acid propyl ester, sodium metasilicate, silicon sol and white carbon black.
Basic solution of the present invention is the aqueous solution a kind of of sodium hydroxide, potassium hydroxide, ammoniacal liquor, Monoethanolamine MEA BASF, diethanolamine, trolamine.
Compared with prior art, advantage of the present invention and beneficial effect are as follows:
The present invention is under gentle alkaline condition, with the cats product is template, with the hydrophilic radical is polyol ester, polyethenoxy ether class nonionogenic tenside or polyalcohols polymer nonionogenic tenside are dispersion agent, under mild reaction conditions, adopt the synthetic mesoporous silicon based MCM-41 molecular sieve of dispersed nano of the chemical liquid phase precipitator method, the gained mesoporous material is the silica-based MCM-41 molecular sieve of two-dimentional hexagonal structure, it is even sphere, monodispersed, but particle diameter modulation in 40～100nm scope, order is good, specific surface area is high, catalysis can be satisfied at the mesoporous material of 2～4nm in the aperture, macromole separates, transmitter, optical material, biochip, many-sided demand in fields such as organic-inorganic nanocomposite and chemically machinery polished abrasive material.
Description of drawings
Fig. 1 (a) is the particle transmission electron microscope photo of embodiment 1.
Fig. 1 (b) is the particle transmission electron microscope photo of embodiment 5.
Fig. 2 (a) is the nitrogen adsorption desorption curve of the sample of embodiment 4.
Fig. 2 (b) is the nitrogen pore distribution curve of the sample of embodiment 4.
Fig. 3 is the XRD spectra of embodiment 1.
Fig. 4 is the sample hexagonal hole structure Electronic Speculum figure of embodiment 3.
Embodiment
The invention will be further described below by embodiment.
Embodiment 1
With 6.0g cetyl trimethylammonium bromide and 9.87g polyoxyethylene glycol (molecular-weight average 4000), be dissolved in (ammonia vol 4.62g) in the 200g ammonia soln, fully stir down at 35 ℃, after treating that tensio-active agent dissolves fully, add methyl silicate 15g, at room temperature continuously stirring is 2 hours, obtain white pulpous state precipitation, filtration, washing, drying at room temperature through 550 ℃ of high-temperature roastings 6 hours, obtain the mesoporous silicon based MCM-41 molecular sieve of final white powder dispersed nano.
Shown in Fig. 1 (a), transmission electron microscope photo is shown as monodispersed even spheroidal particle, and particle diameter is 50～60nm, as shown in Figure 3, XRD spectra is shown as orderly hexagonal mesoporous structure, and nitrogen adsorption desorption spectrogram is shown as the meso-hole structure of pore size distribution homogeneous, and specific surface area is 1000m
2About/g, the aperture is 3～4nm.
Embodiment 2
With 6.0g cetyl trimethylammonium bromide and 0.5g F38 (PEO-PPO-PEO, molecular-weight average 5000), be dissolved in (ammonia vol 9.24g) in the 600g ammonia soln, stir down fully at 50 ℃, treat that tensio-active agent dissolves fully after, add the 20g tetraethoxy, 40 ℃ of following continuously stirring 1 hour, obtain white pulpous state precipitation, filtration, washing, drying at room temperature, through 500 ℃ of high-temperature roastings 10 hours, obtain the mesoporous silicon based MCM-41 molecular sieve of final white powder dispersed nano.
Transmission electron microscope photo is shown as monodispersed even spheroidal particle, and particle diameter is 40～60nm, and XRD spectra is shown as orderly hexagonal mesoporous structure, and nitrogen adsorption desorption spectrogram is shown as the meso-hole structure of pore size distribution homogeneous, and specific surface area is 900m
2About/g, the aperture is 3-4nm.
Embodiment 3
With 10.5g Trimethyllaurylammonium bromide and 1.2g F38 (PEO-PPO-PEO, molecular-weight average 5000), be dissolved in (ammonia vol 27.72g) in the 2000g ammonia soln, stir down fully at 30 ℃, treat that tensio-active agent dissolves fully after, add tetraethoxy 30g, 30 ℃ of following continuously stirring 3 hours, obtain white pulpous state precipitation, filtration, washing, drying at room temperature, through 600 ℃ of high-temperature roastings 6 hours, obtain the mesoporous silicon based MCM-41 molecular sieve of final white powder dispersed nano.
Fig. 4 is sample hexagonal hole structure Electronic Speculum figure, transmission electron microscope photo is shown as monodispersed even spheroidal particle, and particle diameter is about 50～60nm, and XRD spectra is shown as orderly hexagonal mesoporous structure, nitrogen adsorption desorption spectrogram is shown as the meso-hole structure of pore size distribution homogeneous, and specific surface area is 900m
2About/g, the aperture is 2-3nm.
Embodiment 4
With 6.0g cetyl trimethylammonium bromide and 1.2g F68 (PEO-PPO-PEO, molecular-weight average 8500), be dissolved in (2M sodium hydroxide 16.0ml) in the 500g sodium hydroxide solution, stir down fully at 40 ℃, treat that tensio-active agent dissolves fully after, add tetraethoxy 20g, 20 ℃ of following continuously stirring 4 hours, obtain white pulpous state precipitation, filtration, washing, drying at room temperature, through 580 ℃ of high-temperature roastings 8 hours, obtain the mesoporous silicon based MCM-41 molecular sieve of final white powder dispersed nano.
Transmission electron microscope photo is shown as monodispersed even spheroidal particle, particle diameter is 50～60nm, XRD spectra is shown as orderly hexagonal mesoporous structure, Fig. 2 (a), Fig. 2 (b) are the nitrogen adsorption desorption curve and the pore distribution curve of sample, nitrogen adsorption desorption spectrogram is shown as the meso-hole structure of pore size distribution homogeneous, and specific surface area is 800m
2About/g, the aperture is 3～4nm.
Embodiment 5
With 4.0g cetyl trimethylammonium bromide and 3.95g polyoxyethylene glycol (molecular-weight average 20000), be dissolved in (ammonia vol 18.48g) in the 300g ammonia soln, fully stir down at 60 ℃, after treating that tensio-active agent dissolves fully, add tetraethoxy 20g, at room temperature continuously stirring is 2 hours, obtain white pulpous state precipitation, filtration, washing, drying at room temperature through 550 ℃ of high-temperature roastings 6 hours, obtain the mesoporous silicon based MCM-41 molecular sieve of final white powder dispersed nano.
Fig. 1 (b) is the particle transmission electron microscope photo, transmission electron microscope photo is shown as monodispersed even spheroidal particle, and particle diameter is 70～80nm, and XRD spectra is shown as orderly hexagonal mesoporous structure, nitrogen adsorption desorption spectrogram is shown as the meso-hole structure of pore size distribution homogeneous, and specific surface area is 700m
2About/g, the aperture is 3～4nm.
Embodiment 6
With 4.0g cetyl trimethylammonium bromide and 0.32g F127 (PEO-PPO-PEO, molecular-weight average 11000), be dissolved in (ammonia vol 36.96g) in the 400g ammonia soln, stir down fully at 80 ℃, treat that tensio-active agent dissolves fully after, add tetraethoxy 20g, at room temperature continuously stirring is 4 hours, obtains white pulpous state precipitation, filtration, washing, drying at room temperature, through 550 ℃ of high-temperature roastings 10 hours, obtain the mesoporous silicon based MCM-41 molecular sieve of final white powder dispersed nano.
Transmission electron microscope photo is shown as monodispersed even spheroidal particle, and particle diameter is 80～100nm, and XRD spectra is shown as orderly hexagonal mesoporous structure, and nitrogen adsorption desorption spectrogram is shown as the meso-hole structure of pore size distribution homogeneous, and specific surface area is 700m
2About/g, the aperture is 3～4nm.
Embodiment 7
With 4.0g cetyl trimethylammonium bromide and 2.84g TX-100 (molecular weight 646), be dissolved in (diethanolamine amount 35.52g) in the 500g diethanolamine solution, fully stir down at 70 ℃, after treating that tensio-active agent dissolves fully, add tetraethoxy 20g, 50 ℃ of following continuously stirring 20 minutes, obtain white pulpous state precipitation, filtration, washing, drying at room temperature through 550 ℃ of high-temperature roastings 6 hours, obtain the mesoporous silicon based MCM-41 molecular sieve of final white powder dispersed nano.
Transmission electron microscope photo is shown as monodispersed even spheroidal particle, and particle diameter is 70～80nm, and XRD spectra is shown as orderly hexagonal mesoporous structure, and nitrogen adsorption desorption spectrogram is shown as the meso-hole structure of pore size distribution homogeneous, and specific surface area is 700m
2About/g, the aperture is 3～4nm.
Embodiment 8
With 4.0g cetyl trimethylammonium bromide and 1.62g OS-25 (molecular weight 1300), be dissolved in (Monoethanolamine MEA BASF amount 19.60g) in the 800g Monoethanolamine MEA BASF solution, fully stir down at 35 ℃, after treating that tensio-active agent dissolves fully, add tetraethoxy 20g, 70 ℃ of following continuously stirring 20 minutes, obtain white pulpous state precipitation, filtration, washing, drying at room temperature through 550 ℃ of high-temperature roastings 6 hours, obtain the mesoporous silicon based MCM-41 molecular sieve of final white powder dispersed nano.
Transmission electron microscope photo is shown as monodispersed even spheroidal particle, and particle diameter is 70～80nm, and XRD spectra is shown as orderly hexagonal mesoporous structure, and nitrogen adsorption desorption spectrogram is shown as the meso-hole structure of pore size distribution homogeneous, and specific surface area is 700m
2About/g, the aperture is 3～4nm.
Claims (6)
1, the preparation method of the mesoporous silicon based MCM-41 molecular sieve of a kind of dispersed nano, it is characterized in that: under alkaline condition, with the cats product is template, with the nonionogenic tenside is dispersion agent, adopt the chemical liquid phase precipitator method to prepare the mesoporous silicon based MCM-41 molecular sieve of dispersed nano, concrete synthesis step is as follows:
Cats product and nonionogenic tenside are joined in the basic solution, fully stir down at 30～80 ℃, after treating that tensio-active agent dissolves fully, the silicon source is joined in this solution, the mol ratio in alkali source and silicon source is 0.20～60.0, the mol ratio in deionized water and silicon source is 60～2000, the mol ratio in cats product and silicon source is 0.05～0.50, the mol ratio of nonionogenic tenside and cats product is 0.001～0.6, continuously stirring is 0.25～4.0 hour under 20-70 ℃ of temperature of reaction, generates white pulpous state precipitation; Filter then, washing, drying at room temperature; Through 500 ℃～600 ℃ high-temperature roastings 6～10 hours, promptly obtain the mesoporous silicon based MCM-41 molecular sieve of dispersed nano of white powder again.
2, the preparation method of the mesoporous silicon based MCM-41 molecular sieve of dispersed nano according to claim 1, it is characterized in that: it is polyethenoxy ether class nonionogenic tenside or polyalcohols polymer nonionogenic tenside that described nonionogenic tenside adopts hydrophilic radical, and molecular weight is 500～50000.
3, the synthetic method of monodisperse nanosized mesoporous silica material according to claim 1 is characterized in that: described cats product is that carbon chain lengths is C
8-C
22Long chain quaternary a kind of.
4, the synthetic method of monodisperse nanosized mesoporous silica material according to claim 3 is characterized in that: described long chain quaternary is Trimethyllaurylammonium bromide, cetyl trimethylammonium bromide or octadecyl trimethylammonium bromide.
5, the preparation method of the mesoporous silicon based MCM-41 molecular sieve of dispersed nano according to claim 1 is characterized in that: described silicon source is a kind of of tetraethoxy, methyl silicate, positive silicic acid propyl ester, sodium metasilicate, silicon sol and white carbon black.
6, the preparation method of the mesoporous silicon based MCM-41 molecular sieve of dispersed nano according to claim 1 is characterized in that: described basic solution is the aqueous solution a kind of of sodium hydroxide, potassium hydroxide, ammoniacal liquor, Monoethanolamine MEA BASF, diethanolamine, trolamine.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101182004B (en) * | 2006-11-14 | 2010-05-26 | 中国石油化工股份有限公司 | Method for preparing nano molecular sieve |
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| CN105692626A (en) * | 2014-11-25 | 2016-06-22 | 辽宁奥克化学股份有限公司 | Preparation method of spherical meso-porous molecular sieve |
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| CN101182004B (en) * | 2006-11-14 | 2010-05-26 | 中国石油化工股份有限公司 | Method for preparing nano molecular sieve |
| CN103864089A (en) * | 2014-03-07 | 2014-06-18 | 北京化工大学 | Method for modifying lamellar molecular sieve titanium intercalation |
| CN105692626A (en) * | 2014-11-25 | 2016-06-22 | 辽宁奥克化学股份有限公司 | Preparation method of spherical meso-porous molecular sieve |
| CN106215854A (en) * | 2016-09-30 | 2016-12-14 | 东莞深圳清华大学研究院创新中心 | A kind of coal ash for manufacturing is for the method for ceramic adsorbent articles |
| CN106882810A (en) * | 2016-12-26 | 2017-06-23 | 济南大学 | The method for preparing high surface area nanometer hole silica under normal pressure for silicon source using white carbon |
| CN106882810B (en) * | 2016-12-26 | 2019-01-22 | 济南大学 | The method for preparing high surface area nanometer hole silica using white carbon black under normal pressure for silicon source |
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