CN106076347B - A kind of hollow core shell mould metal silicate/cerium oxide nanoparticles and preparation method thereof - Google Patents
A kind of hollow core shell mould metal silicate/cerium oxide nanoparticles and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to advanced nanocomposite and technical field, is specially a kind of hollow core shell mould metal silicate/cerium oxide nanoparticles and preparation method thereof.The present invention uses silicon source presoma Hydrolyze method synthesis pattern, the silica nanosphere of size uniform as seed grain first.Then, using chemical precipitation method, hydrolyzed using ceria presoma, one layer of uniform ceria is coated in silica surface.Finally, using hydro-thermal method, in alkaline conditions, metal precursor is added, synthesizes the hud typed silicate/cerium oxide nanoparticles of metal hollow.The hollow core-shell nano particle has the advantages that high-specific surface area, high activity metal dispersion degree, high anti-caking power and pattern are homogeneous, there is important application prospect in adsorbing separation and catalytic field etc..The synthetic method that the present invention is reported, can realize the control of the specific surface area and ceria shell thickness to metal silicate.Synthesis material is easy to get, method is simply rapid, can realize large batch of synthesis.
Description
Technical field
The invention belongs to advanced nanocomposite and technical field, and in particular to a kind of hollow core shell mould metal metasilicate
Salt/cerium oxide nanoparticles and preparation method thereof.
Technical background
In recent years, nm-class core-and-shell particles are widely used in the fields such as catalysis, medicine, environmental protection and energy storage.This is main
It is due to the selection that the core of core shell nanoparticles and shell can be included material by rational design, shell porosity and hole knot
Control of structure etc., to reach their specific application requirements.Such as：High catalytic activity and high-temperature stability, high medicine
Controlled release precision, high energy storage density etc..
Compared with loaded catalyst, hud typed metal silicate/cerium oxide nanoparticles have the metal point of higher
Divergence, high resistant activity metal sintering ability and the high ability for preventing metal loss, it is thus possible to show good urge
Change performance, such as：High catalytic activity, high-temperature stability, high recycling and high carbon accumulation resisting ability etc..But according to
The author is understood, and there is presently no the report of the synthesis on hollow core shell mould metal silicate/cerium oxide nanoparticles.
Report using ceria as most of core shell nanoparticles of shell be on noble metal such as Ag, Au, Pt, Pd, or
Bad dispersibility, yield are small etc..(X.Wang,Y.Zhang,S.Song,X.Yang,Z.Wang,R.Jin,H.Zhang,
Angew.Chem.Int.Ed.,55,4542,2016；H.X.Zhong,Y.Wei,Y.Z.Yue,L.H.Zhang,Y.Liu,
Nanotechnology,27,135701,2016；E.T.Saw,U.Oemar,M.L.Ang,K.Hidajat,S.Kawi,
ChemCatChem,7,3358-3367,2015；T.Mitsudome,M.Matoba,T.Mizugaki,K.Jitsukawa,
K.Kaneda,Chem.Eur.J.19,5255–5258,2013；H.Guo,Y.He,Y.Wang,L.Liu,X.Yang,S.Wang,
Z.Huang,Q.Wei,J.Mater.Chem.A,1,7494-7499,2013；J.Qi,J.Chen,G.Li,S.Li,Y.Gao,
Z.Tang,Energy Environ.Sci.,5,8937-8941,2012；C.-M.Fan,L.-F.Zhang,S.-S.Wang,D.-
H.Wang,L.-Q.Lu,A.-W.Xu,Nanoscale,4,6835-6840,2012；Connie Mei YuYeung,Shik Chi
Tsang, J.Mole.Catal.A, 322,17-25,2010.)
The content of the invention
It is an object of the invention to provide the nano particle that a kind of metal dispersity is high, heat endurance is good, pattern is homogeneous and
Its preparation method.The metal silicate/ceria core-shell type nano catalyst combine metal silicate high-specific surface area,
The advantages that high metal dispersion degree and ceria high oxygen migration ability, prepare and close in high temperature, the serious reforming reaction of carbon distribution
Have broad application prospects into the catalytic reactions such as gas.
Technical scheme：A kind of preparation method of hollow core shell mould metal silicate/cerium oxide nanoparticles：
First, silicon source presoma Hydrolyze method synthesis pattern, the silica nanosphere of size uniform is used then, to be utilized for seed grain
Chemical precipitation method, is hydrolyzed using ceria presoma, and one layer of uniform ceria is coated in silica surface, finally,
Using hydro-thermal method, in alkaline conditions, the presoma of metal silicate, synthesis hollow core shell mould metal silicate/dioxy are added
Change cerium nano particle, add appropriate solvent washing, centrifuge removing alkalescence, acidic materials, it is dry.
Synthesized hollow core-shell nanosphere size is 20nm~900nm, specific surface area 20m2.g-1~300m2.g-1,
Controlled especially by the thickness of the particle size of control silica nanosphere, ceria shell.
In hollow core-shell nanosphere, the particle diameter of silica nanosphere is 10nm~900nm, and the thickness of ceria is
1nm~50nm.The thickness of the metal silicate of synthesis is 10nm~900nm, specific surface area 20m2.g-1~350m2.g-1。
The good dispersion of metal in heretofore described metal silicate.Metallosilicate material can be nisiloy acid
Salt, copper silicate, magnesium silicate, aluminosilicate, ferrosilicate, nickel-magnesium silicate, nickel-copper silicate are therein a kind of or several
Kind.
In the present invention, silicon source is using the one or more in ethyl orthosilicate, methyl orthosilicate, sodium metasilicate.
In the present invention, catalyst used in the hydrolysis of silicon source presoma is basic catalyst or acidic catalyst.Alkalescence is urged
Agent is the one or more in sodium hydroxide, concentrated ammonia liquor or urea.Acidic catalyst is a kind of or several in acetic acid or dilute hydrochloric acid
Kind.
In the present invention, the synthesis temperature of the silica of uniform different-grain diameter is controlled at 0 DEG C~80 DEG C.
In the present invention, ceria presoma is the one or more in cerous nitrate, cerium chloride, ammonium ceric nitrate.
In the present invention, precipitating reagent used in chemical precipitation method is the one or more in sodium hydroxide, concentrated ammonia liquor.
In the present invention, the synthesis temperature of hydro-thermal method is controlled at 0 DEG C~220 DEG C.
In the present invention, the alkali in hydro-thermal method synthetic system is using the one or more in urea, concentrated ammonia liquor, sodium hydroxide.
PH value is controlled 8~12.
In the present invention, the presoma of metal silicate is nickel nitrate, nickel chloride, copper nitrate, copper chloride, magnesium nitrate, chlorination
One or more in magnesium, ferric nitrate, ferric acetyl acetonade.
In the present invention, solvent is using alkylol and the mixed solution of water.Alkylol therein is methanol, ethanol, isopropanol
One or more.The mass ratio of alkyl alcohol and water is 9:1~1:9.
In the present invention, in the chemical precipitation synthetic system of silicon dioxide/cerium oxide core shell nanoparticles, silica
Mass percent is 0.5wt%~15wt%, and the mass percent of ceria presoma is 0.5wt%~5wt%, precipitating reagent
Mass percent be 15wt%~25wt%, other are alcohol water mixed solvent.Silicate/dioxy in hollow core-shell structural metal
In the Hydrothermal Synthesiss system for changing cerium nano particle, the mass percent of silicon dioxide/cerium oxide nano particle for 0.5wt%~
15wt%, the mass percent of metal silicate presoma is 5wt%~15wt%, other are buck mixed solution, pH value control
System is 8~12.
Beneficial effects of the present invention：Metal silicate/ceria core-shell type nano catalyst for being reported of the present invention with
Metal silicate is core, and using ceria as shell, the core shell structure of formation is hollow uniform nanosphere body.With having reported
The synthesis ceria Core-shell Structure Nanoparticles NiCu@CeO in road2(E.T.Saw,U.Oemar,M.L.Ang,K.Hidajat,
S.Kawi, ChemCatChem, 7,3358-3367,2015), Ag@CeO2(H.X.Zhong,Y.Wei,Y.Z.Yue,
L.H.Zhang, Y.Liu, Nanotechnology, 27,135701,2016), Au@CeO2(Qi,J.Chen,G.Li,S.Li,
Y.Gao, Z.Tang, Energy Environ.Sci., 5,8937-8941,2012) method etc. compares, and the present invention is reported
Synthetic method, synthesis material is cheap and easy to get, method is simply rapid, can realize it is large batch of synthesize and realize to metal metasilicate
The specific surface area of salt and the control of ceria shell thickness.Due to the high-specific surface area of the core shell nanoparticles, high activity
The advantages that metal dispersity, homogeneous high anti-caking power and pattern, have in adsorbing separation and catalytic field etc. important
Application prospect.
Brief description of the drawings
Fig. 1 is hollow core shell mould metal silicate/cerium oxide nanoparticles preparation method；
Fig. 2 is 370nm silica transmission electron microscope pictures；
Fig. 3 is ceria, silicon dioxide/cerium oxide core shell nanoparticles, nisiloy hydrochlorate/ceria hollow core-shell
The X-ray diffractogram of nano particle；
Fig. 4 is silicon dioxide/nickel silicate core shell structure transmission electron microscope picture；
Fig. 5 is Hollow Nickel silicate transmission electron microscope picture；
Fig. 6 is silicon dioxide/nickel silicate/ceria core shell structure transmission electron microscope picture；
Fig. 7 is hollow copper silicate/SiO2Core shell nanoparticles transmission electron microscope.
Embodiment
Embodiment 1：
(1) ethyl orthosilicate of 20mL is added in the beaker for filling 150mL ethanol, stirred evenly.In another beaker
In, the ammonium hydroxide (28wt%) of 100mL ethanol, 50mL water and 6.9mL is stirred evenly.After the solution mixing in two beakers,
24h is reacted at 0 DEG C, is centrifuged.Repeatedly washed, centrifuged with the mixed solvent of second alcohol and water, it is stand-by after drying at room temperature.Obtain
The particle diameter of silica is 450nm (Fig. 2).
(2) silica 0.5g ultrasonic disperses that previous step obtains are weighed in 50mL ethanol, add six water nitre of 0.1g
Sour cerium.0.18g sodium hydroxides are added, after stirring 1h, are centrifuged.Repeatedly washed, centrifuged, room with the mixed solvent of second alcohol and water
It is stand-by after temperature is dry.Obtained silicon dioxide/cerium oxide core shell nanoparticles particle diameter is 455nm, and the thickness of ceria is about
For 5nm.Fig. 3 XRD diagram can be seen that the silicon dioxide/cerium oxide crystal phase structure to be formed.
(3) silica and silicon dioxide/cerium oxide core shell nanoparticles 0.5g ultrasonic disperses weighed respectively
In 10mL water.Urea is added, it is about 8 to adjust pH.Add six water nickel nitrates of 0.1g.Controlling reaction temperature is in room temperature, by not
In the same reaction time, obtain different core shell structures.Centrifuge.Repeatedly washed, centrifuged, room with the mixed solvent of second alcohol and water
Temperature is dry.Fig. 4 is silicon dioxde reaction 10h, obtained silicon dioxide/nickel silicate core shell nanoparticles.Fig. 5 is silica
React 28h, obtained Hollow Nickel silicate core shell nanoparticles.Silicon dioxide/cerium oxide core shell nanoparticles react 15h
Afterwards, Hollow Nickel silicate/ceria core shell nanoparticles are obtained, particle diameter is about 455nm, and ceria thickness is about 5nm, than
Surface area is 180m2.g-1。
Embodiment 2：
(1) ethyl orthosilicate of 20mL is added in the beaker for filling 150mL ethanol, stirred evenly.In another beaker
In, the ammonium hydroxide (28wt%) of 100mL ethanol, 50mL water and 6.9mL is stirred evenly.After the solution mixing in two beakers,
1h is reacted at 0 DEG C, is centrifuged.Repeatedly washed, centrifuged with the mixed solvent of second alcohol and water, it is stand-by after drying at room temperature.Obtain
The particle diameter of silica is 200nm.
(2) silica 0.5g ultrasonic disperses that previous step obtains are weighed in 30mL ethanol, add six water nitre of 0.1g
Sour cerium.0.05g sodium hydroxides are added, after stirring 1h, are centrifuged.Repeatedly washed, centrifuged, room with the mixed solvent of second alcohol and water
It is stand-by after temperature is dry.Obtain silicon dioxide/cerium oxide core shell nanoparticles.Particle diameter is 210nm, and the thickness of ceria is about
10nm。
(3) the silicon dioxide/cerium oxide core shell nanoparticles 0.5g ultrasonic disperses weighed are in 10mL water.Add
Urea, it is about 8 to adjust pH.Add 0.1g magnesium nitrate hexahydrates.Controlling reaction temperature is in room temperature, after reacting 10h, centrifugation.With
The mixed solvent of second alcohol and water is repeatedly washed, centrifuged, drying at room temperature, obtains hollow magnesium silicate/cerium oxide nanoparticles, grain
Footpath is about 210nm, and ceria thickness is about 10nm, specific surface area 117m2.g-1。
Embodiment 3：
(1) ethyl orthosilicate of 10mL is added in the beaker for filling 150mL ethanol, stirred evenly.In another beaker
In, the ammonium hydroxide (28wt%) of 100mL ethanol, 50mL water and 6.9mL is stirred evenly.After the solution mixing in two beakers,
0.5h is reacted at 0 DEG C, is centrifuged.Repeatedly washed, centrifuged with the mixed solvent of second alcohol and water, it is stand-by after drying at room temperature.Obtain
SiO2Particle diameter is 50nm.
(2) silica 0.3g ultrasonic disperses that previous step obtains are weighed in 30mL ethanol, add six water nitre of 0.1g
Sour cerium.0.05g sodium hydroxides are added, after stirring 1h, are centrifuged.Repeatedly washed, centrifuged, room with the mixed solvent of second alcohol and water
It is stand-by after temperature is dry.Obtained silicon dioxide/cerium oxide core shell nanoparticles particle diameter is 60nm, and the thickness of ceria is about
10nm。
(3) silica and silicon dioxide/cerium oxide core shell nanoparticles 0.5g ultrasonic disperses weighed respectively
In 10mL water.Urea is added, it is about 8 to adjust pH.Add 0.1g Copper nitrate hexahydrates.Controlling reaction temperature is in room temperature, and reaction is not
After the time, centrifuge.Repeatedly washed, centrifuged, drying at room temperature with the mixed solvent of second alcohol and water.Silica/titanium dioxide
After cerium core shell nanoparticles reaction 10h, silicon dioxide/copper silicate/ceria core shell nanoparticles are obtained, particle diameter is about
60nm, ceria thickness are about 10nm, specific surface area 77m2.g-1(Fig. 6).React 20h after, obtain hollow copper silicate/
Cerium oxide nanoparticles, specific surface area 130m2.g-1.After silicon dioxde reaction 20h, hollow copper silicate nano is obtained
Grain (Fig. 7).
Embodiment 4：
(1) ethyl orthosilicate of 10mL is added in the beaker for filling 100mL ethanol, stirred evenly.In another beaker
In, the ammonium hydroxide (28wt%) of 70mL ethanol, 20mL water and 4.9mL is stirred evenly.After the solution mixing in two beakers,
3h is reacted at room temperature, is centrifuged.Repeatedly washed, centrifuged with the mixed solvent of second alcohol and water, it is stand-by after drying at room temperature.Two obtained
The particle diameter of silica is 300nm.
(2) silica 0.5g ultrasonic disperses that previous step obtains are weighed in 30mL ethanol, add six water nitre of 0.15g
Sour cerium.0.15g sodium hydroxides are added, after stirring 3h, are centrifuged.Repeatedly washed, centrifuged, room with the mixed solvent of second alcohol and water
It is stand-by after temperature is dry.Obtained silicon dioxide/cerium oxide core shell nanoparticles particle diameter is 330nm, and the thickness of ceria is about
For 30nm.
(4) the silicon dioxide/cerium oxide core shell nanoparticles 0.5g ultrasonic disperses weighed are in 20mL water.Add
Urea, it is about 9 to adjust pH.Add six water nickel nitrates of 0.05g and 0.05g magnesium nitrate hexahydrates.Controlling reaction temperature is in room temperature, reaction
After 10h, centrifuge.Repeatedly washed, centrifuged, drying at room temperature with the mixed solvent of second alcohol and water, obtain Hollow Nickel-magnesium silicic acid
Salt/cerium oxide nanoparticles, particle diameter are about 375nm, and ceria thickness is about 5nm, specific surface area 235m2.g-1。
Claims (1)
- A kind of 1. preparation method of hollow core shell mould metal silicate/cerium oxide nanoparticles, it is characterised in that：First, adopt Silica nanosphere with silicon source presoma Hydrolyze method synthesis pattern, size uniform is seed grain, then, utilizes chemical precipitation Method, is hydrolyzed using ceria presoma, is coated one layer of uniform ceria in silica surface, finally, is utilized hydro-thermal Method, in alkaline conditions, adds source metal presoma, synthesis hollow core shell mould metal silicate/cerium oxide nanoparticles；Institute The silicon source presoma stated is ethyl orthosilicate, the one or more in methyl orthosilicate, sodium metasilicate；Used silicon source presoma Hydrolyst is basic catalyst or acidic catalyst；The temperature control of silicon source presoma Hydrolyze method synthetic silica is 0 DEG C~80 DEG C；The ceria presoma is cerous nitrate, the one or more in cerium chloride, ammonium ceric nitrate；The change It is the one or more in sodium hydroxide, concentrated ammonia liquor to learn precipitating reagent in the precipitation method；The synthesis temperature control of used hydro-thermal method At 25 DEG C~100 DEG C, pH values are 8~12；Alkali in hydro-thermal method synthetic system is using in urea, concentrated ammonia liquor, sodium hydroxide It is one or more of；The source metal presoma is nickel nitrate, nickel chloride, copper nitrate, copper chloride, magnesium nitrate, magnesium chloride, nitre One or more in sour iron, ferric acetyl acetonade；Specific preparation method：In silicon dioxide/cerium oxide core shell nanoparticles In chemical precipitation synthetic system, silica quality percentage is the wt% of 0.5wt%~15, the quality hundred of ceria presoma Point than for the wt% of 0.5wt%~5, the mass percent of precipitating reagent is the wt% of 15wt%~25, other are alcohol water mixed solvent, In the Hydrothermal Synthesiss system of hollow core-shell structural metal silicate/cerium oxide nanoparticles, silicon dioxide/cerium oxide nanometer The mass percent of particle is the wt% of 0.5wt%~15, and the mass percent of source metal presoma is the wt% of 5wt%~15, its He is buck mixed solution.
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| CN108569718A (en) * | 2018-06-13 | 2018-09-25 | 四川大学 | Nano ceric oxide coats the preparation method of nanometer spherical silica composite granules |
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| CN109529857A (en) * | 2018-12-10 | 2019-03-29 | 江苏大学 | Ni@SiO2@CeO2The preparation method of nucleocapsid catalyst and its application in methane carbon dioxide reformation |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101659417A (en) * | 2008-08-28 | 2010-03-03 | 中国科学院合肥物质科学研究院 | Porous silicate nano hollow particle and preparation method thereof |
| CN103071438A (en) * | 2013-01-07 | 2013-05-01 | 中国科学院合肥物质科学研究院 | Preparation method of core-shell structured micro-nanosphere comprising magnetic core and magnesium silicate nano-sheet shell |
| CN105129809A (en) * | 2015-10-12 | 2015-12-09 | 上海第二工业大学 | Sea-urchin-shaped nanometer nickel silicate hollow sphere and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2505263B1 (en) * | 2009-11-25 | 2020-02-12 | Solvay Special Chem Japan, Ltd. | Complex oxide, method for producing same and exhaust gas purifying catalyst |
-
2016
- 2016-05-31 CN CN201610372683.2A patent/CN106076347B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101659417A (en) * | 2008-08-28 | 2010-03-03 | 中国科学院合肥物质科学研究院 | Porous silicate nano hollow particle and preparation method thereof |
| CN103071438A (en) * | 2013-01-07 | 2013-05-01 | 中国科学院合肥物质科学研究院 | Preparation method of core-shell structured micro-nanosphere comprising magnetic core and magnesium silicate nano-sheet shell |
| CN105129809A (en) * | 2015-10-12 | 2015-12-09 | 上海第二工业大学 | Sea-urchin-shaped nanometer nickel silicate hollow sphere and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| Membranes with selective laminar nanochannels of modified reduced graphene oxide for water purification;Bin Liang et al.;《Carbon》;20160302;第103卷;第94-100页 * |
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