CN116251562A - Nanoscale cerium oxide particle material and preparation method thereof - Google Patents
Nanoscale cerium oxide particle material and preparation method thereof Download PDFInfo
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- CN116251562A CN116251562A CN202310106919.8A CN202310106919A CN116251562A CN 116251562 A CN116251562 A CN 116251562A CN 202310106919 A CN202310106919 A CN 202310106919A CN 116251562 A CN116251562 A CN 116251562A
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- 229910000420 cerium oxide Inorganic materials 0.000 title claims abstract description 39
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000002245 particle Substances 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 14
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims abstract description 9
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002243 precursor Substances 0.000 claims abstract description 9
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002244 precipitate Substances 0.000 claims abstract description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000012153 distilled water Substances 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- 239000004530 micro-emulsion Substances 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 238000009210 therapy by ultrasound Methods 0.000 claims abstract description 4
- 238000001291 vacuum drying Methods 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000376 reactant Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 239000012295 chemical reaction liquid Substances 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 239000011236 particulate material Substances 0.000 claims 4
- 238000001914 filtration Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000005303 weighing Methods 0.000 abstract 1
- 235000019504 cigarettes Nutrition 0.000 description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- FMMWHPNWAFZXNH-UHFFFAOYSA-N Benz[a]pyrene Chemical compound C1=C2C3=CC=CC=C3C=C(C=C3)C2=C2C3=CC=CC2=C1 FMMWHPNWAFZXNH-UHFFFAOYSA-N 0.000 description 7
- 241000208125 Nicotiana Species 0.000 description 7
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 7
- 239000000835 fiber Substances 0.000 description 7
- 238000001179 sorption measurement Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229920002301 cellulose acetate Polymers 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 229920006221 acetate fiber Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910002483 Cu Ka Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000002159 adsorption--desorption isotherm Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 238000000696 nitrogen adsorption--desorption isotherm Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000019505 tobacco product Nutrition 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28004—Sorbent size or size distribution, e.g. particle size
- B01J20/28007—Sorbent size or size distribution, e.g. particle size with size in the range 1-100 nanometers, e.g. nanosized particles, nanofibers, nanotubes, nanowires or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3028—Granulating, agglomerating or aggregating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3085—Chemical treatments not covered by groups B01J20/3007 - B01J20/3078
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
- C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
- C01F17/224—Oxides or hydroxides of lanthanides
- C01F17/235—Cerium oxides or hydroxides
Abstract
The invention relates to the field of tar filtration, and discloses a preparation method of a nanoscale cerium oxide particle material, which comprises the steps of weighing cyclohexane, cetyltrimethylammonium bromide and n-butanol with a mass ratio of 8:1:1, pouring the cyclohexane, the cetyltrimethylammonium bromide and the n-butanol into a beaker, and carrying out ultrasonic treatment to uniformly mix the cyclohexane, the cetyltrimethylammonium bromide and the n-butanol. Slowly dropwise adding 1mol/L cerium nitrate solution, and continuously stirring to form clear and transparent microemulsion. Adding strong ammonia water while stirring at 25 ℃, wherein the dropping speed is 3-4 drops/min, and continuing stirring for 2h after the dropping is finished when the pH value of the system is=9. And pouring the reacted liquid into a centrifuge tube, performing centrifugal separation by using a centrifuge, alternately washing the precipitate with distilled water and absolute ethyl alcohol, and drying the washed precipitate in a vacuum drying oven at 8 ℃ for 4 hours to obtain a precursor. And roasting the precursor in a muffle furnace at 700 ℃ for 2 hours to finally obtain the nano cerium oxide.
Description
Technical Field
The invention relates to the field of tar filtration, in particular to a nanoscale cerium oxide particle material and a preparation method thereof.
Background
The cigarette is a long-strip-shaped tobacco product made of tobacco shreds by using cigarette paper, at present, flue-cured tobacco type and mixed type are common in China, the cigarette structure mainly comprises a filter rod and a cigarette, the filter rod and the cigarette are connected and formed through connecting paper, wherein the filter rod is a filter tip shape formed by processing filter materials into strips through forming paper, and the filter rod can absorb part of harmful substances such as tar, nicotine, carbon monoxide, benzopyrene and the like in the cigarette, so that the harm of smoking the cigarette to human bodies and the pollution to the environment are reduced. Cigarette smoke contains particulates, commonly referred to as tar. Tar contains a large number of chemical components, 4000 to 5000, which are the products of incomplete combustion of tobacco. In addition to tar, cigarette smoke contains other materials, such as a "vapor" or "gas" phase, and also volatile tobacco combustion materials, such as acetaldehyde, as well as other low molecular weight components. Other phases in cigarette smoke, such as a semi-volatile phase, comprise a plurality of combustion substances, are equivalent to particles and steam, in the prior art, the cigarette filter rod mainly adopts two materials, namely cellulose acetate fibers and polypropylene fibers, wherein the polypropylene fibers are nonpolar materials, on one hand, the adsorption capacity is poor, harmful substances such as tar and the like cannot be effectively trapped, on the other hand, the bonding capacity is poor, the forming process of the cigarette filter rod is complicated, the adsorption effect of the cellulose acetate fibers is higher than that of the polypropylene fibers, but the adsorption effect of the cellulose acetate fibers still has a very high lifting space, the cost of the cellulose acetate fibers is higher, the degradation time is longer, the ventilation volume of the filter tip and the taste of smoke can be changed along with the gradual lifting of the tar content adsorbed on the filter tip in the smoking process of the existing cigarette, the passing of tar and harmful substances can be reduced while the taste is not influenced, and the invention is one of the problems to be solved in the current cigarette manufacturing industry.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a nanoscale cerium oxide particle material and a preparation method thereof, and solves the problems.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the nano cerium oxide granular material is prepared from cyclohexane, cetyltrimethylammonium bromide and n-butanol in a weight ratio of 8:1:1.
The preparation process of nanometer level cerium oxide particle material includes the following steps:
the first step: pouring cyclohexane, cetyl trimethyl ammonium bromide and n-butanol into a beaker, and carrying out ultrasonic treatment to uniformly mix the materials to obtain a mixture;
and a second step of: slowly dripping the reaction liquid into the mixture, and stirring to form clear and transparent microemulsion;
and a third step of: dropwise adding concentrated ammonia water and stirring to obtain a reactant;
fourth step: pouring the reactant into a centrifuge tube, performing centrifugal separation by using a centrifuge, and alternately washing the precipitate with distilled water and absolute ethyl alcohol to obtain a washed reactant;
fifth step: precipitating and drying the washed reactant to obtain a precursor;
sixth step: and roasting the precursor to obtain the nano cerium oxide.
Preferably, the reaction liquid in the second step is a cerium nitrate solution of 1 mol/L.
Preferably, the reactant in the third step is obtained as follows: adding strong ammonia water while stirring at 25 ℃, wherein the dropping speed is 3-4 drops/min, and continuing stirring for 2h after the dropping is finished when the pH value of the system is=9.
Preferably, the precipitate in the fifth step is dried for 4 hours in a vacuum drying oven at 8 ℃.
Preferably, the baking in the sixth step is baking in a muffle furnace at 700 ℃ for 2h.
(III) beneficial effects
Compared with the prior art, the invention provides a nano cerium oxide particle material and a preparation method thereof, which comprises the following steps of
The beneficial effects are that:
1. the nanoscale cerium oxide particle material and the preparation method thereof have better absorption effect, higher surface area ratio, less taste change, lower carbon and environmental protection of raw materials, and better filtering effect of smoke harmful substances in particular.
Drawings
FIG. 1 is an XRD pattern of a cerium oxide sample;
FIG. 2 is a SEM schematic of a cerium oxide sample;
FIG. 3 is a sample of cerium oxide N 2 Adsorption-desorption isotherm schematic;
FIG. 4 is a schematic diagram of pore size distribution of a cerium oxide sample;
FIG. 5 is a schematic diagram of tar detection.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, a nano-scale cerium oxide granular material is prepared from cyclohexane, cetyltrimethylammonium bromide and n-butanol in a weight ratio of 8:1:1.
The preparation process of nanometer level cerium oxide particle material includes the following steps:
cyclohexane, cetyltrimethylammonium bromide and n-butanol with the mass ratio of 8:1:1 are weighed and poured into a beaker, and the mixture is evenly mixed by ultrasonic treatment. Slowly dropwise adding 1mol/L cerium nitrate solution, and continuously stirring to form clear and transparent microemulsion. Adding strong ammonia water while stirring at 25 ℃, wherein the dropping speed is 3-4 drops/min, and continuing stirring for 2h after the dropping is finished when the pH value of the system is=9. And pouring the reacted liquid into a centrifuge tube, performing centrifugal separation by using a centrifuge, alternately washing the precipitate with distilled water and absolute ethyl alcohol, and drying the washed precipitate in a vacuum drying oven at 8 ℃ for 4 hours to obtain a precursor. And roasting the precursor in a muffle furnace at 700 ℃ for 2 hours to finally obtain the nano cerium oxide.
The experimental contents are as follows:
XRD spectrum analysis of samples
Fig. 1 is an X-ray diffraction pattern of a cerium oxide sample. Diffraction peaks at 28.83 degrees, 33.40 degrees, 47.89 degrees, 56.75 degrees, 59.43 degrees, 69.64 degrees, 77.06 degrees and 79.46 degrees respectively correspond to (111), (200), (220), (311), (222), (400), (331) and (420) crystal faces, are consistent with standard cards (PDF # 34-0394) of cerium oxide, and have clear peaks in diffraction spectrum and no diffraction peak of impurity phases, which indicates that the precursor is decomposed into cerium oxide.
X-ray diffraction (XRD)
The X-ray diffractometer model is Rigaku D/max-2550, the Cu-Ka target is tested by using a 2 theta value increment of 0.2 degrees per second and the scanning range is 10-80 degrees.
Sample morphology analysis—sem.
Fig. 2 is a scanning electron microscope photograph of a synthesized cerium oxide sample, and it can be seen that the sample presents particles formed by stacking small particles, and the particle size is nano-scale.
Scanning Electron Microscope (SEM)
The model of a scanning electron microscope adopted in the experiment is JEOL JEM-6700F, and the sample preparation mode is solid sample preparation, namely, a pale yellow powder solid product is stuck on the conductive adhesive.
N of the prepared cerium oxide sample 2 The adsorption-desorption isotherm diagram is shown in figure 3. The isothermal line can be seen to have an obvious hysteresis loop, belongs to an IV-type curve, and shows that the cerium oxide sample has a mesoporous structure. The specific surface area of the sample was 42m 2 /g。
As can be seen from the pore size distribution chart of FIG. 4, the pore size of the cerium oxide sample is not uniform and is mainly distributed between 5 and 11nm.
Nitrogen adsorption and desorption test
The test was performed using a nitrogen adsorber model Micromeritics ASAP 2420.
Adsorbed tobacco tar test
The cerium oxide particles are added into the acetate fiber filter stick, and a (20+10) mm composite filter stick is adopted, wherein the 20mm part is the acetate fiber, and the 10mm part is the uniform addition of 5mg cerium oxide particles. In order to ensure comparability of experimental data, an active carbon particle (20+10) mm composite filter stick is synchronously prepared as a comparison sample, and other indexes are identical except that the active carbon particles are added.
The same tobacco shred is rolled into a cigarette with the same standard for tar detection, the average tar content of the cigarette added with cerium oxide is 9.53 mg/cigarette, and the average tar content of the cigarette added with activated carbon is 9.96 mg/cigarette.
Results of adsorbed tobacco tar tests:
from the data, the filter rod prepared by the method can increase tar adsorption amount by about 0.17mg per milligram of cerium oxide particles compared with activated carbon particles.
Adsorption of cigarette benzopyrene test results:
it is worth noting that the benzopyrene content of the cigarette of the activated carbon filter rod is 8.5 ng/count, the benzopyrene content of the cigarette of the cerium oxide particle filter rod is 7.6 ng/count, the benzopyrene content of the cigarette is also reduced in proportion with the reduction of tar content of the cigarette, but the effect of adsorbing the benzopyrene by the cerium oxide particle is obvious from detection data, and the average energy of the filter rod manufactured by the method can absorb more than 0.18ng of the benzopyrene per milligram of cerium oxide particle.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The nano cerium oxide granular material is characterized in that the preparation raw materials comprise cyclohexane, cetyltrimethylammonium bromide and n-butanol, and the weight ratio is 8:1:1.
2. The preparation method of the nanoscale cerium oxide particle material is characterized by comprising the following steps of:
the first step: pouring cyclohexane, cetyl trimethyl ammonium bromide and n-butanol into a beaker, and carrying out ultrasonic treatment to uniformly mix the materials to obtain a mixture;
and a second step of: slowly dripping the reaction liquid into the mixture, and stirring to form clear and transparent microemulsion;
and a third step of: dropwise adding concentrated ammonia water and stirring to obtain a reactant;
fourth step: pouring the reactant into a centrifuge tube, performing centrifugal separation by using a centrifuge, and alternately washing the precipitate with distilled water and absolute ethyl alcohol to obtain a washed reactant;
fifth step: precipitating and drying the washed reactant to obtain a precursor;
sixth step: and roasting the precursor to obtain the nano cerium oxide.
3. The method for preparing the nano-scale cerium oxide particulate material according to claim 2, wherein: the reaction liquid in the second step is cerium nitrate solution with the concentration of 1 mol/L.
4. The method for preparing the nano-scale cerium oxide particulate material according to claim 2, wherein: the reactant in the third step is obtained as follows: adding strong ammonia water while stirring at 25 ℃, wherein the dropping speed is 3-4 drops/min, and continuing stirring for 2h after the dropping is finished when the pH value of the system is=9.
5. The method for preparing the nano-scale cerium oxide particulate material according to claim 2, wherein: the precipitate in the fifth step is dried for 4 hours in a vacuum drying oven at 8 ℃.
6. The method for preparing the nano-scale cerium oxide particulate material according to claim 2, wherein: the roasting in the sixth step is roasting in a muffle furnace at 700 ℃ for 2 hours.
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