CN105921162A - Short-duct mesoporous nanosphere, preparation method thereof, bifunctional catalyst and preparation method thereof - Google Patents

Short-duct mesoporous nanosphere, preparation method thereof, bifunctional catalyst and preparation method thereof Download PDF

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CN105921162A
CN105921162A CN201610325437.1A CN201610325437A CN105921162A CN 105921162 A CN105921162 A CN 105921162A CN 201610325437 A CN201610325437 A CN 201610325437A CN 105921162 A CN105921162 A CN 105921162A
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CN105921162B (en
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朱凤霞
朱丽丽
许慧
方海洁
赵朴素
李和兴
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Huaiyin Normal University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/20Carbon compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/50Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/51Spheres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61Surface area
    • B01J35/615100-500 m2/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63Pore volume
    • B01J35/633Pore volume less than 0.5 ml/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/64Pore diameter
    • B01J35/6472-50 nm
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08Heat treatment
    • B01J37/082Decomposition and pyrolysis
    • B01J37/084Decomposition of carbon-containing compounds into carbon
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    • B01J37/16Reducing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00Nanotechnology for materials or surface science, e.g. nanocomposites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
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    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/26Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by hydration of carbon-to-carbon triple bonds

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Abstract

The invention provides a preparation method of a short-duct mesoporous nanosphere. The obtained short-duct mesoporous nanosphere has very high sulfydryl content. Experimental results of embodiments show that the sulfydryl content can be highest to 0.67 mmol/g. In addition, the experimental results of the embodiments also show that the obtained short-duct mesoporous nanosphere is of a body centered cubic structure and has good degree of order, the sylfydryl content can be highest to 0.67 mmol/g, the specific surface area is 110 m<2>/g or above, and the pore size is about 5.0 nm. The invention further provides a preparation method of a bifunctional catalyst. The mixed liquid of the obtained short-duct mesoporous nanosphere and a chloroauric acid solution is subjected to in-situ redox reaction, and the bifunctional catalyst is obtained. The experimental results of the embodiments show that the obtained catalyst has good catalyzing activity.

Description

Short-bore road meso-porous nano bead and preparation method thereof and bifunctional catalyst and preparation method thereof
Technical field
The present invention relates to technical field of function materials, particularly relate to a kind of short-bore road meso-porous nano bead and Preparation method and bifunctional catalyst and preparation method thereof.
Background technology
Meso-porous nano bead due to have relatively short-bore road, ball size strong at Nano grade, surface hydrophobic, High surface, high mechanical properties, it is easily-synthesized and a series of advantages such as low cost increasingly cause the pass of people Note.Meso-porous nano bead can be applied separating, adsorbs, is catalyzed, dielectric material and biology sensor etc. Technical field.
The little ball material of meso-porous nano comprises mesoporous silicon sphere, mesopore metal oxide nanosphere and mesoporous carbon spheres etc.. Zhao Dongyuan academician seminar has synthesized a kind of mesoporous height with body-centered cubic structure by hydrothermal synthesis method Molecule nano bead, and by modulation phenol and the mol ratio of water, can obtain ball size, aperture big The most regulatable little mesoporous polymer nanometer bead, wherein the size of meso-porous nano bead can be from 20nm It is tuned to 140nm.Compared with the mesoporous material of long duct, the nanometer bead of this kind of meso-hole structure has regular Pattern, short-bore road, aperture be relatively larger than the features such as long duct, be more beneficial for reactant and catalytic active site Contact, thus improve reaction catalysis activity.
In order to improve absorption property, it will usually modify the functional groups such as sulfydryl at meso-porous nano bead material surface Thus improve clearance and the selectivity of heavy metal ion.The little ball material of meso-porous nano of high sulfhydryl content (SH-MPN) have that high surface, big pore volume, duct be regular and heat endurance advantages of higher, show relatively Good absorption property.
But, meso-porous nano bead material function used in the market is more single, there are no about short The report of the little ball material of meso-porous nano of duct-high sulfhydryl content.
Summary of the invention
It is an object of the invention to provide a kind of short-bore road meso-porous nano bead and preparation method thereof with difunctional Catalyst and preparation method thereof, the meso-porous nano bead and the one that obtain a kind of short-bore Dao-high sulfhydryl content are high The function catalyst of catalytic efficiency.
In order to realize foregoing invention purpose, the present invention provides techniques below scheme:
The invention provides the preparation method of a kind of short-bore road meso-porous nano bead, comprise the following steps:
Carry out adding heat fusing by the mixture of thiohydroquinone and phenol, obtain fused mass;
Described fused mass and alkaline compound solution are mixed, obtains alkaline mixt;
By described alkaline mixt and formaldehyde hybrid reaction, obtain mercapto-functionalized resin;
Described mercapto-functionalized resin and surfactant are carried out the first hot polymerization reaction, described surface-active Agent is PEO-PPOX-PEO;
The product of described first hot polymerization reaction is mixed with Part I water and carries out the second hot polymerization reaction, obtain Hot polymerization system;
Described hot polymerization system and Part II water are mixed and is aged, obtain polymer;
Described polymer is calcined under an inert atmosphere, obtains short-bore road meso-porous nano bead.
Preferably, the mass ratio of described thiohydroquinone and phenol is (2~5): (1~6);
The mass concentration of described alkaline compound solution is 0.01~0.5mol/L;
The quality of described thiohydroquinone and the volume ratio of alkaline compound solution are (0.2~0.5) g:(10~20) mL;
Described formaldehyde is formalin;
The mass concentration of described formalin is 35~40%;
The quality of described thiohydroquinone and the mass ratio of formalin are (0.2~0.5) g:(0.35~1.2) g.
Preferably, the temperature adding heat fusing described in is 60~80 DEG C.
Preferably, described surfactant is surfactant solution;
The mass ratio of described thiohydroquinone and surfactant is (0.2~0.5): (0.5~1.5);
The mass ratio of thiohydroquinone and Part I water is (0.2~0.5): (40~60);
The volume ratio of described hot polymerization system and Part II water is (15~20): (50~60).
Preferably, the temperature of described first hot polymerization reaction is 60~70 DEG C;
The time of described first hot polymerization reaction is 1~3 hour;
The temperature of described second hot polymerization reaction is 60~70 DEG C;
The time of described second hot polymerization reaction is 16~18 hours;
The temperature of described ageing is 120~140 DEG C;
The time of described ageing is 20~28 hours.
Preferably, described calcining is to be incubated 1~3 hour under the first calcining heat successively, in the second calcining At a temperature of be incubated 5~10 hours;
Described first calcining heat is 90~110 DEG C;
Described second calcining heat is 340~360 DEG C.
Present invention also offers the short-bore road meso-porous nano bead that above-mentioned preparation method obtains, its specific surface area More than or equal to 110m2/ g, aperture diameter is 4~6nm.
The preparation method of a kind of bifunctional catalyst of the present invention, comprises the following steps:
According to the preparation method described in claim 1~6 any one, prepare short-bore road meso-porous nano Bead;
Described short-bore road meso-porous nano bead and gold chloride are carried out redox reaction under solution system, Obtain bifunctional catalyst;
Described gold chloride is chlorauric acid solution;
The substance withdrawl syndrome of described chlorauric acid solution is 7~10mmol/L;
The ratio of the amount of the material of the S in described short-bore road meso-porous nano bead and the Au in gold chloride is (1~3): 1.
Preferably, the temperature of described redox reaction is-5~0 DEG C;
The time of described redox reaction is 20~30 hours.
The bifunctional catalyst that the preparation method preferably stated obtains, this catalyst is Au-SH/SO3H-MPN, the catalytic rate to phenylacetylene hydration reaction is 81%.
The invention provides the preparation method of a kind of short-bore road meso-porous nano bead, the present invention will be to hydroxyl sulphur Phenol and phenol obtain mercapto-functionalized resin under the catalysis of formaldehyde;Described mercapto-functionalized resin is through overheated Gather, be aged and calcining obtains short-bore road meso-porous nano bead.Test result indicate that of embodiment, the present invention The sulfhydryl content of the short-bore road meso-porous nano bead obtained reaches as high as 0.67mmol/g, and specific surface area all exists 110m2/ more than g, and pore size is at about 5.0nm.
Present invention also offers the preparation method of a kind of bifunctional catalyst, the short-bore road present invention obtained The mixed liquor of meso-porous nano bead and chlorauric acid solution carries out redox reaction, obtains bifunctional catalyst. Test result indicate that of embodiment, the catalyst obtained is respectively provided with and is preferably catalyzed activity, and catalytic rate is the highest 79% can be reached.
Accompanying drawing explanation
Fig. 1 is the flow chart that the present invention prepares short-bore road meso-porous nano bead;
Fig. 2 is the XRD diffraction pattern of the SH-MPN that the embodiment of the present invention 1~3 obtains;
Fig. 3 is the XPS figure of the SH-MPN that the embodiment of the present invention 1~3 obtains;
Fig. 4 is the N of the SH-MPN that the embodiment of the present invention 1~3 obtains2Inhale de--attached thermoisopleth;
Fig. 5 is the graph of pore diameter distribution of the SH-MPN that the embodiment of the present invention 1~3 obtains;
Fig. 6 is the SEM figure of the SH-MPN that the embodiment of the present invention 1~3 obtains.
Detailed description of the invention
The invention provides the preparation method of a kind of short-bore road meso-porous nano bead, comprise the following steps:
Carry out adding heat fusing by the mixture of thiohydroquinone and phenol, obtain fused mass;
Described fused mass and alkaline compound solution are mixed, obtains alkaline mixt;
By described alkaline mixt and formaldehyde hybrid reaction, obtain mercapto-functionalized resin;
Described mercapto-functionalized resin and surfactant are carried out the first hot polymerization reaction;
The product of described first hot polymerization reaction is mixed with Part I water and carries out the second hot polymerization reaction, obtain Hot polymerization system;
Described hot polymerization system and Part II water are mixed and is aged, obtain polymer;
Described polymer is calcined under an inert atmosphere, obtains short-bore road meso-porous nano bead.
The mixture of thiohydroquinone and phenol is carried out adding heat fusing by the present invention, obtains fused mass.This Inventing the source to described thiohydroquinone and phenol and do not have particular/special requirement, concrete can be to hydroxyl Benzenethiol and the commercially available prod of phenol.In the present invention, described thiohydroquinone and the mass ratio of phenol It is preferably (2~5): (1~6), is preferably (3~4.5): (2~5), more preferably (3.5~4.2): (3~4).
In the present invention, the temperature adding heat fusing is preferably 60~80 DEG C, more preferably 65~75 DEG C, optimum Elect 68~72 DEG C as.The present invention does not has particular/special requirement to the described time adding heat fusing, it is possible to by para hydroxybenzene The mixture of thiophenol and phenol melts.The described detailed description of the invention adding heat fusing is not had by the present invention Particular/special requirement, concrete can be heating water bath or oil bath heating.
After obtaining described fused mass, described fused mass and alkaline compound solution are mixed by the present invention, To alkaline mixt.In the present invention, described alkali compounds is preferably hydroxide, more preferably hydrogen Sodium oxide molybdena or potassium hydroxide.
In the present invention, the molar concentration of described alkaline compound solution is preferably 0.01~0.5mol/L, more It is preferably 0.05~0.3mol/L, most preferably 0.1~0.2mol/L.In the present invention, described alkalescence chemical combination Solvent in thing solution is preferably water.The present invention is suitable to the mixing of described fused mass and alkaline compound solution Sequence does not has particular/special requirement, can mix in any order.
The alkaline mixt obtained preferably is stirred by the present invention so that alkaline mixt mixes more Uniformly.The present invention does not has particular/special requirement to the concrete mode of described stirring, uses those skilled in the art institute Known to agitating mode carry out.In the present invention, the time of described stirring is preferably 8~12 minutes, Concrete can be 8 minutes, 9 minutes, 10 minutes, 11 minutes or 12 minutes.
In the present invention, the quality of described thiohydroquinone and the volume ratio of alkaline compound solution are preferred For (0.2~0.5) g:(10~20) mL, more preferably (0.3~0.5) g:(12~18) mL, most preferably 0.402g:15mL。
After obtaining described alkaline mixt, the present invention by described alkaline mixt and formaldehyde hybrid reaction, Obtain mercapto-functionalized resin.Formaldehyde is preferably mixed with described alkalescence by the present invention with the form of formalin Thing hybrid reaction;The mass concentration of described formalin is preferably 35~40%, concrete can be 35%, 36%, 37%, 38% or 39%.In the present invention, the solvent in described formalin is preferably water.This Invent the order by merging to described alkaline mixt and formalin and there is no particular/special requirement, can be according to arbitrarily Order mix.
The mixture of described alkaline mixt and formaldehyde is preferably stirred by the present invention.The present invention is to described The concrete mode of stirring does not has particular/special requirement, uses agitating mode well-known to those skilled in the art to carry out ?.In the present invention, the time of described stirring is preferably 50~70 minutes, more preferably 55~65 points Clock, most preferably 58~62 minutes.In the present invention, the speed of described stirring is preferably 300~380rpm, More preferably 320~360rpm, most preferably 330~350rpm.
In the present invention, the quality of described thiohydroquinone and the mass ratio of formalin are preferably (0.2~0.4) g:(0.35~1.2) g, more preferably (0.25~0.35) g:(0.55~1) g, most preferably (0.28~0.3) g:(0.7~0.9) g.
After obtaining described mercapto-functionalized resin, described mercapto-functionalized resin and surface are lived by the present invention Property agent carries out the first hot polymerization reaction, and described surfactant is PEO-PPOX-polycyclic oxygen second Alkane (F127).In the present invention, the weight average of described PEO-PPOX-PEO divides Son amount preferably 12000~13000, more preferably 12300~12800, most preferably 12500~12600.
In the present invention, described surfactant is preferably surfactant solution, described surfactant Solvent in solution is preferably water;The concentration of described surfactant solution is preferably 0.025~0.15g/mL, More preferably 0.05~0.12g/mL, most preferably 0.07~0.1g/mL.
In the present invention, the mass ratio of described thiohydroquinone and surfactant is (0.2~0.5): (0.5~1.5), more preferably (0.2~0.4): (0.7~1.3), most preferably 0.3:(0.8~1).
In the present invention, the temperature of described first hot polymerization reaction is preferably 60~70 DEG C, more preferably 63~68 DEG C, most preferably 65~66 DEG C;The time of described first hot polymerization reaction is preferably 1~3 hour, tool Body can be 1 hour, 2 hours or 3 hours.
The present invention described first hot polymerization reaction after, by described first hot polymerization reaction product and first Divide water mixing to carry out the second hot polymerization reaction, obtain hot polymerization system.In the present invention, thiohydroquinone and The mass ratio of Part I water is preferably (0.2~0.5): (40~60), more preferably (0.2~0.5): (45~55), It is preferably 0.402:50.
In the present invention, the temperature of described second hot polymerization reaction is preferably 60~70 DEG C, more preferably 63~68 DEG C, most preferably 65~66 DEG C;The time of described second hot polymerization reaction is preferably 16~18 hours, Concrete can be 16 hours, 17 hours or 18 hours.
After obtaining described hot polymerization system, described hot polymerization system and Part II water are mixed into by the present invention Row ageing, obtains polymer.In the present invention, the volume ratio of described hot polymerization system and Part II water is excellent Elect as (15~20): (50~60), more preferably (17~18): (54~58), most preferably 17.7:56.
In the present invention, the temperature of described ageing is preferably 120~140 DEG C, more preferably 125~135 DEG C, Most preferably 130~132 DEG C;The time of described ageing is preferably 20~28 hours, more preferably 22~26 Hour, most preferably 24~25 hours.
Product after described ageing is preferably centrifuged by the present invention, obtains solid polymer.The present invention couple Described centrifugal concrete operation does not has particular/special requirement, uses centrifugal behaviour well-known to those skilled in the art Make to carry out.
Described solid polymer is preferably washed by the present invention.In the present invention, wash used by described washing Wash agent and be preferably ethanol and/or water.The present invention does not has particular/special requirement to the concrete operation of described washing, adopts Carry out with washing operation well-known to those skilled in the art.
After described washing, described solid polymer is preferably dried by the present invention.The present invention is to described dry Dry temperature and time does not has particular/special requirement, it is possible to the water of solid polymer surfaces and/or ethanol are dried ?.
After obtaining described polymer, described polymer is calcined by the present invention under an inert atmosphere, To short-bore road meso-porous nano bead.In the present invention, described inert atmosphere is preferably argon gas.In the present invention In, described calcining is preferably carried out in quartz boat.
In the present invention, described calcining is preferably and is incubated 1~3 hour under the first calcining heat successively, It is incubated 5~10 hours under second calcining heat.In an embodiment of the present invention, the guarantor under described first calcining The temperature time is 1 hour, 2 hours or 3 hours;Temperature retention time under described second calcining is 5 hours, 6 Hour, 7 hours, 8 hours, 9 hours or 10 hours.
In the present invention, described first calcining heat is preferably 90~110 DEG C, more preferably 95~105 DEG C, Most preferably 98~100 DEG C;Described second calcining heat is preferably 340~360 DEG C, more preferably 345~355 DEG C, most preferably 348~350 DEG C K.
The present invention preferably rises to the first calcining heat with the first heating rate from room temperature, with the second heating rate The second calcining heat is risen to from the first calcining heat.In the present invention, described first heating rate is preferably 1~3 DEG C/min, that concrete can be 1 DEG C/min, 2 DEG C/min or 3 DEG C/min;Described second heating rate Being preferably 1~3 DEG C/min, that concrete can be 1 DEG C/min, 2 DEG C/min or 3 DEG C/min.
The present invention prepares the process of SH-MPN short-bore road meso-porous nano bead as it is shown in figure 1, Fig. 1 is this The flow chart of invention preparation short-bore road meso-porous nano bead.
Present invention also offers the preparation method of a kind of bifunctional catalyst, comprise the following steps:
According to the preparation method of short-bore road meso-porous nano bead described in technique scheme, prepare short-bore Road meso-porous nano bead;
Described short-bore road meso-porous nano bead and gold chloride are carried out redox reaction under solution system, Obtain bifunctional catalyst.
After obtaining described short-bore road meso-porous nano bead, the present invention is by described short-bore road meso-porous nano bead Under solution system, carry out redox reaction with gold chloride, obtain bifunctional catalyst.
In the present invention, described gold chloride is preferably chlorauric acid solution, the solvent in described chlorauric acid solution It is preferably water, methyl alcohol, ethanol or propyl alcohol.In the present invention, the amount of the material of described chlorauric acid solution is dense Degree is preferably 7~10mmol/L, concrete can be 7mmol/L, 8mmol/L, 9mmol/L or 10mmol/L。
In the present invention, the S in described short-bore road meso-porous nano bead and the mol ratio of the Au in gold chloride Being preferably (1~3): 1, that concrete can be 1:1,1.5:1,2:1,2.5:1 or 3:1.
In the present invention, the temperature of described redox reaction is preferably-5~0 DEG C, concrete can be-5 DEG C, -4 DEG C ,-3 DEG C ,-2 DEG C ,-1 or 0 DEG C;The time of described redox reaction is preferably 20~30 hours, More preferably 22~28 hours, most preferably 24~26 hours.In the present invention, described redox is anti- Should preferably carry out in recirculation cooler.
The present invention preferably carries out suction filtration to the bifunctional catalyst obtained.The present invention is concrete to described suction filtration Embodiment does not has particular/special requirement, uses suction filtration well-known to those skilled in the art operation to carry out.
After described suction filtration, the solid that suction filtration is preferably obtained by the present invention with water and/or ethanol washs. The present invention does not has particular/special requirement to the detailed description of the invention of described washing, uses those skilled in the art institute ripe The washing operation known is carried out.
After described washing, described solid is preferably dried by the present invention, obtains Au-SH/SO3H-MPN Bifunctional catalyst.In the present invention, described dry temperature is preferably 70~90 DEG C, more preferably 75~85 DEG C, most preferably 78~82 DEG C.In the present invention, to be preferably 20~28 little the described dry time Time, more preferably 22~26 hours, most preferably 23~25 hours.In the present invention, described dry excellent It is selected in drying box and carries out.
The invention provides the preparation method of a kind of short-bore road meso-porous nano bead, the present invention will be to hydroxyl sulphur Phenol and phenol obtain mercapto-functionalized resin under the catalysis of formaldehyde;Described mercapto-functionalized resin is through overheated Gather, be aged and calcining obtains short-bore road meso-porous nano bead.Test result indicate that of embodiment, the present invention The sulfhydryl content of the short-bore road meso-porous nano bead obtained reaches as high as 0.67mmol/g, and specific surface area all exists 110m2/ more than g, and pore size is at about 5.0nm.
Present invention also offers the preparation method of a kind of bifunctional catalyst, the short-bore road present invention obtained The mixed liquor of meso-porous nano bead and chlorauric acid solution carries out redox reaction, obtains bifunctional catalyst. Test result indicate that of embodiment, the catalyst obtained is respectively provided with and is preferably catalyzed activity, and catalytic rate is the highest 79% can be reached.A kind of short-bore road meso-porous nano bead present invention provided below in conjunction with embodiment The preparation of preparation and bifunctional catalyst is described in detail, but they can not be interpreted as this The restriction of bright protection domain.
Embodiment 1
Weigh 0.3g phenol respectively and 0.402g thiohydroquinone is placed in clean three-necked bottle, regulation Oil bath temperature is 70 DEG C.After being heated to fusing, pour the 15ml 0.10mol/L NaOH aqueous solution into, stirring After 10min, then it is added thereto to 2.1ml 37wt% formalin, and returns with the rotating speed of 340rpm Stream 1.0h, prepares the mercapto-functionalized resin of low-molecular-weight.
Weigh 0.96g F127 as 15ml H2In O so that it is dissolve, obtain the F127 aqueous solution.Will The 15ml F127 aqueous solution pours above-mentioned three-necked bottle into, and regulation oil bath temperature is 66 DEG C, adds after stirring 2h again 50ml water, continuing to keep temperature is 66 DEG C.During whole stirring, the color from light yellow of solution Become orange, after continuing stirring 16h~18h, have a small amount of pale yellow precipitate to produce, stop reaction, stand Dissolve to sediment, obtain orange settled solution.
Then 17.7ml gained solution and 56.0ml H are measured2O pours in reactor, is aged at 130 DEG C After 24h, centrifuge washing is dried to obtain faint yellow solid.The faint yellow solid grind into powder obtained is gone to In quartz boat, calcine under 350 DEG C of argon gas atmosphere.Tube furnace the most at room temperature leads to argon gas half an hour, so After rise to 100 DEG C with the speed of 2 DEG C/min and keep 1h after, then 2 DEG C/min is warming up to 350 DEG C, protects After holding 7h, obtain 50%-SH-MPN order mesoporous nanometer bead.
Embodiment 2
Weigh 0.3g phenol respectively and 0.2412g thiohydroquinone is placed in clean three-necked bottle, regulation Oil bath temperature is 70 DEG C.After being heated to fusing, pour the 15ml 0.10mol/L NaOH aqueous solution into, stirring After 10min, then it is added thereto to 2.1ml 37wt% formalin, and returns with the rotating speed of 340rpm Stream 1.0h, prepares the mercapto-functionalized resin of low-molecular-weight.
Weigh 0.96g F127 as 15ml H2In O so that it is dissolve, obtain the F127 aqueous solution.Will The 15ml F127 aqueous solution pours above-mentioned three-necked bottle into, and regulation oil bath temperature is 66 DEG C, adds after stirring 2h again 50ml water, continuing to keep temperature is 66 DEG C.During whole stirring, the color from light yellow of solution Become orange, after continuing stirring 16h~18h, have a small amount of pale yellow precipitate to produce, stop reaction, stand Dissolve to sediment, obtain orange settled solution.
Then 17.7ml gained solution and 56.0ml H are measured2O pours in reactor, is aged at 130 DEG C After 24h, centrifuge washing is dried to obtain faint yellow solid.The faint yellow solid grind into powder obtained is gone to In quartz boat, calcine under 350 DEG C of argon gas atmosphere.Tube furnace the most at room temperature leads to argon gas half an hour, so After rise to 100 DEG C with the speed of 2 DEG C/min and keep 1h after, then 2 DEG C/min is warming up to 350 DEG C, protects After holding 7h, obtain 30%-SH-MPN order mesoporous nanometer bead.
Embodiment 3
Weigh 0.3g phenol respectively and 0.1206g thiohydroquinone is placed in clean three-necked bottle, regulation Oil bath temperature is 70 DEG C.After being heated to fusing, pour the 15ml 0.10mol/L NaOH aqueous solution into, stirring After 10min, then it is added thereto to 2.1ml 37wt% formalin, and returns with the rotating speed of 340rpm Stream 1.0h, prepares the mercapto-functionalized resin of low-molecular-weight.
Weigh 0.96g F127 as 15ml H2In O so that it is dissolve, obtain the F127 aqueous solution.Will The 15ml F127 aqueous solution pours above-mentioned three-necked bottle into, and regulation oil bath temperature is 66 DEG C, adds after stirring 2h again 50ml water, continuing to keep temperature is 66 DEG C.During whole stirring, the color from light yellow of solution Become orange, after continuing stirring 16h~18h, have a small amount of pale yellow precipitate to produce, stop reaction, stand Dissolve to sediment, obtain orange settled solution.
Then 17.7ml gained solution and 56.0ml H are measured2O pours in reactor, is aged at 130 DEG C After 24h, centrifuge washing is dried to obtain faint yellow solid.The faint yellow solid grind into powder obtained is gone to In quartz boat, calcine under 350 DEG C of argon gas atmosphere.Tube furnace the most at room temperature leads to argon gas half an hour, so After rise to 100 DEG C with the speed of 2 DEG C/min and keep 1h after, then 2 DEG C/min is warming up to 350 DEG C, protects After holding 7h, obtain 15%-SH-MPN order mesoporous nanometer bead.
The SH-MPN that embodiment 1~3 is obtained by the present invention is detected, testing result such as Fig. 2~6 Hes Shown in table 1.Wherein, Fig. 2 is the XRD diffraction pattern of the SH-MPN that the embodiment of the present invention 1~3 obtains, Fig. 3 is the XPS figure of the SH-MPN that the embodiment of the present invention 1~3 obtains;Fig. 4 is the embodiment of the present invention 1~3 The N of the SH-MPN obtained2Inhale de--attached thermoisopleth;Fig. 5 is that the embodiment of the present invention 1~3 obtains The graph of pore diameter distribution of SH-MPN;Fig. 6 is the SEM figure of the SH-MPN that the embodiment of the present invention 1~3 obtains.
As shown in Figure 2, the meso-hole structure of the SH-MPN that the present invention obtains is body-centered cubic structure, at 2 θ Diffraction maximum at=0 °~0.9 ° and 2 θ=1.5 ° represents [110] and [211] face of body-centered cubic structure respectively;With The increase of sulfhydryl content, the degree of order of mercapto-functionalized meso-porous nano bead reduces constantly.
From the figure 3, it may be seen that one absworption peak of appearance that the SH-MPN that obtains of the present invention is at 164.0eV, Belong to-the sulphur of divalent.As shown in Figure 4, the SH-MPN that the present invention obtains is first kind adsorption desorption isothermal Line, and have delayed winding and slight capillary condensation phenomenon, show with the presence of meso-hole structure.Can by Fig. 5 Knowing, the aperture of the SH-MPN material that the present invention obtains does not presents mountain valley shape distribution trend, all 0~5nm Between.
In Fig. 6 a, b, c, d, e be respectively 15%-SH-MPN, 20%-SH-MPN, 30%-SH-MPN, 50%-SH-MPN and 100%-SH-MPs.It will be appreciated from fig. 6 that the different sulfhydryl contents that obtain of the present invention SH-MPN presents regular spherical morphology, and the surface of ball also can be clearly seen the existence of mesopore orbit, And the size of ball is all at about 150nm, and e figure is the SEM figure of long duct SH-MPs-H, with a, B, c, d are contrary, are shaped as sheet, size heterogeneity, do not have regular pattern.
The structural parameters of the SH-MPN that table 1 obtains for the present embodiment and sulfur content data.
The structural parameters of SH-MPN and sulfur content data in table 1 embodiment 1~3
As shown in Table 1, the sulfhydryl content of the SH-MPN that the present invention obtains can reach 0.67mmol/g, Specific surface area is all at 110m2/ more than g, and pore size is at about 5.0nm.
Embodiment 4
50%-SH-MPN and 8.0mmol/L gold chloride ethanol solution embodiment 1 obtained is placed in flask In so that the mol ratio of S:Au is 1.5:1.0.Flask is placed in recirculation cooler, and regulates temperature It it is 0 DEG C.After stirring 24h, solution stirring obtained carries out suction filtration, and fully washs with water and ethanol After, it is placed in 80 DEG C of drying boxes and is dried 24h, thus prepare 50%-Au-SH/SO3H-MPN is difunctional solid Body acid catalyst.The Au-SH/SO that table 2 obtains for the present embodiment3The structural parameters of H-MPN and gold content Data.
Table 2Au-SH/SO3The structural parameters of H-MPN and sulfur content data
Embodiment 5
30%-SH-MPN and 8.0mmol/L gold chloride ethanol solution embodiment 2 obtained is placed in flask In so that the mol ratio of S:Au is 1.5:1.0.Flask is placed in recirculation cooler, and regulates temperature It it is 0 DEG C.After stirring 24h, solution stirring obtained carries out suction filtration, and fully washs with water and ethanol After, it is placed in 80 DEG C of drying boxes and is dried 24h, thus prepare 30%-Au-SH/SO3H-MPN is difunctional solid Body acid catalyst.
Embodiment 6
15%-SH-MPN and 8.0mmol/L gold chloride ethanol solution embodiment 3 obtained is placed in flask In so that the mol ratio of S:Au is 1.5:1.0.Flask is placed in recirculation cooler, and regulates temperature It it is 0 DEG C.After stirring 24h, solution stirring obtained carries out suction filtration, and fully washs with water and ethanol After, it is placed in 80 DEG C of drying boxes and is dried 24h, thus prepare 15%-Au-SH/SO3H-MPN is difunctional solid Body acid catalyst.
The Au-SH/SO that embodiment 4~6 is also obtained by the present invention3H-MPs catalysis phenylacetylene hydration reaction is made Catalysis activity for probe reaction compares, and comparative result is as shown in table 3.
Au-SH/SO implemented by table 33H-MPN is catalyzed expression activitiy
As shown in Table 2, when catalyst feeds intake identical with catalysis time, three kinds of catalyst are respectively provided with preferably Catalysis activity, but catalysis activity most preferably 50%-Au-SH/SO3H-MPN。
As seen from the above embodiment, the short-bore road meso-porous nano bead that the present invention obtains has the highest sulfydryl Content, test result indicate that of embodiment, sulfhydryl content reaches as high as 0.67mmol/g.Additionally, embodiment Experimental result it is also shown that the short-bore road meso-porous nano bead that the present invention obtains is body-centered cubic structure, tool Having the preferable degree of order, sulfhydryl content can reach 0.67mmol/g, and specific surface area is all at 110m2/G with On, and pore size is at about 5.0nm.
Present invention also offers the preparation method of a kind of bifunctional catalyst, the short-bore road present invention obtained The mixed liquor of meso-porous nano bead and chlorauric acid solution carries out redox reaction, obtains bifunctional catalyst. Test result indicate that of embodiment, the catalyst obtained is respectively provided with and is preferably catalyzed activity.
The above is only the preferred embodiment of the present invention, it is noted that general for the art For logical technical staff, under the premise without departing from the principles of the invention, it is also possible to make some improvement and profit Decorations, these improvements and modifications also should be regarded as protection scope of the present invention.

Claims (10)

1. a preparation method for short-bore road meso-porous nano bead, comprises the following steps:
Carry out adding heat fusing by the mixture of thiohydroquinone and phenol, obtain fused mass;
Described fused mass and alkaline compound solution are mixed, obtains alkaline mixt;
By described alkaline mixt and formaldehyde hybrid reaction, obtain mercapto-functionalized resin;
Described mercapto-functionalized resin and surfactant are carried out the first hot polymerization reaction, described surface-active Agent is PEO-PPOX-PEO;
The product of described first hot polymerization reaction is mixed with Part I water and carries out the second hot polymerization reaction, obtain Hot polymerization system;
Described hot polymerization system and Part II water are mixed and is aged, obtain polymer;
Described polymer is calcined under an inert atmosphere, obtains short-bore road meso-porous nano bead.
Preparation method the most according to claim 1, it is characterised in that described thiohydroquinone and The mass ratio of phenol is (2~5): (1~6);
The mass concentration of described alkaline compound solution is 0.01~0.5mol/L;
The quality of described thiohydroquinone and the volume ratio of alkaline compound solution are (0.2~0.5) g:(10~20) mL;
Described formaldehyde is formalin;
The mass concentration of described formalin is 35~40%;
The quality of described thiohydroquinone and the mass ratio of formalin are (0.2~0.5) g:(0.35~1.2) g.
Preparation method the most according to claim 1, it is characterised in that described in add the temperature of heat fusing It it is 60~80 DEG C;
The temperature of described ageing is 120~140 DEG C;
The time of described ageing is 20~28 hours.
Preparation method the most according to claim 1, it is characterised in that described thiohydroquinone and The mass ratio of surfactant is (0.2~0.5): (0.5~1.5);
The mass ratio of thiohydroquinone and Part I water is (0.2~0.5): (40~60);
The volume ratio of described hot polymerization system and Part II water is (15~20): (50~60).
Preparation method the most according to claim 1, it is characterised in that described first hot polymerization reaction Temperature is 60~70 DEG C;
The time of described first hot polymerization reaction is 1~3 hour;
The temperature of described second hot polymerization reaction is 60~70 DEG C;
The time of described second hot polymerization reaction is 16~18 hours.
Preparation method the most according to claim 1, it is characterised in that described calcining is successively It is incubated 1~3 hour under one calcining heat, under the second calcining heat, is incubated 5~10 hours;
Described first calcining heat is 90~110 DEG C;
Described second calcining heat is 340~360 DEG C.
7. the short-bore road meso-porous nano bead that the preparation method described in claim 1~6 any one obtains, Its specific surface area is more than or equal to 110m2/ g, aperture diameter is 4~6nm.
8. a preparation method for bifunctional catalyst, comprises the following steps:
According to the preparation method described in claim 1~6 any one, prepare short-bore road meso-porous nano Bead;
Described short-bore road meso-porous nano bead and gold chloride are carried out redox reaction under solution system, Obtain bifunctional catalyst;
Described gold chloride is chlorauric acid solution;
The substance withdrawl syndrome of described chlorauric acid solution is 7~10mmol/L;
The ratio of the amount of the material of the S in described short-bore road meso-porous nano bead and the Au in gold chloride is (1~3): 1.
Preparation method the most according to claim 8, it is characterised in that:
The temperature of described redox reaction is-5~0 DEG C;
The time of described redox reaction is 20~30 hours.
10. the bifunctional catalyst that the preparation method described in claim 8 or 9 obtains, this catalyst is Au-SH/SO3H-MPN, the catalytic rate to phenylacetylene hydration reaction is 79%.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107245136A (en) * 2017-05-13 2017-10-13 淮阴师范学院 A kind of ordered mesoporous polymer material and its preparation method and application

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101745366A (en) * 2010-01-29 2010-06-23 上海师范大学 Mercapto-functionalized organic inorganic hybrid ordered mesoporous silicon material and preparation method thereof
CN103599747A (en) * 2013-09-26 2014-02-26 同济大学 Preparation method for sulfur-functionalized carbon foam with high adsorptive property

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101745366A (en) * 2010-01-29 2010-06-23 上海师范大学 Mercapto-functionalized organic inorganic hybrid ordered mesoporous silicon material and preparation method thereof
CN103599747A (en) * 2013-09-26 2014-02-26 同济大学 Preparation method for sulfur-functionalized carbon foam with high adsorptive property

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
YIN FANG ET AL: ""A Low-Concentration Hydrothermal Synthesis of Biocompatible Ordered Mesoporous Carbon Nanospheres with Tunable and Uniform Size"", 《ANGEW. CHEM. INT. ED.》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107245136A (en) * 2017-05-13 2017-10-13 淮阴师范学院 A kind of ordered mesoporous polymer material and its preparation method and application
CN107245136B (en) * 2017-05-13 2019-01-25 淮阴师范学院 A kind of ordered mesoporous polymer material and its preparation method and application

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