CN107335442A - Composite photocatalyst material and its preparation method and application is changed on a kind of Er ions yttrium aluminate/concave convex rod - Google Patents
Composite photocatalyst material and its preparation method and application is changed on a kind of Er ions yttrium aluminate/concave convex rod Download PDFInfo
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- CN107335442A CN107335442A CN201710484851.1A CN201710484851A CN107335442A CN 107335442 A CN107335442 A CN 107335442A CN 201710484851 A CN201710484851 A CN 201710484851A CN 107335442 A CN107335442 A CN 107335442A
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- Prior art keywords
- concave convex
- convex rod
- yttrium aluminate
- photocatalyst material
- ions
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- 239000002131 composite material Substances 0.000 title claims abstract description 40
- -1 ions yttrium aluminate Chemical class 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 title claims abstract description 33
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000227 grinding Methods 0.000 claims abstract description 13
- 238000001354 calcination Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- YBYGDBANBWOYIF-UHFFFAOYSA-N erbium(3+);trinitrate Chemical compound [Er+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O YBYGDBANBWOYIF-UHFFFAOYSA-N 0.000 claims abstract description 5
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims abstract description 3
- NGDQQLAVJWUYSF-UHFFFAOYSA-N 4-methyl-2-phenyl-1,3-thiazole-5-sulfonyl chloride Chemical compound S1C(S(Cl)(=O)=O)=C(C)N=C1C1=CC=CC=C1 NGDQQLAVJWUYSF-UHFFFAOYSA-N 0.000 claims abstract description 3
- 230000008859 change Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910021645 metal ion Inorganic materials 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 2
- 229910052727 yttrium Inorganic materials 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000006477 desulfuration reaction Methods 0.000 description 7
- 230000023556 desulfurization Effects 0.000 description 7
- 229910052761 rare earth metal Inorganic materials 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 150000002910 rare earth metals Chemical class 0.000 description 6
- 239000011593 sulfur Substances 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- 239000003643 water by type Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000001699 photocatalysis Effects 0.000 description 5
- 235000015165 citric acid Nutrition 0.000 description 4
- 238000007146 photocatalysis Methods 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 206010013786 Dry skin Diseases 0.000 description 2
- 229910052691 Erbium Inorganic materials 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- JLDSOYXADOWAKB-UHFFFAOYSA-N aluminium nitrate Chemical class [Al+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O JLDSOYXADOWAKB-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000004298 light response Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- BXJPTTGFESFXJU-UHFFFAOYSA-N yttrium(3+);trinitrate Chemical class [Y+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O BXJPTTGFESFXJU-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- IYYZUPMFVPLQIF-UHFFFAOYSA-N dibenzothiophene Chemical class C1=CC=C2C3=CC=CC=C3SC2=C1 IYYZUPMFVPLQIF-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000000320 mechanical mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/83—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B01J35/39—
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G29/00—Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
- C10G29/06—Metal salts, or metal salts deposited on a carrier
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
- C10G2300/202—Heteroatoms content, i.e. S, N, O, P
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/70—Catalyst aspects
Abstract
The invention belongs to new chemical materialses field, composite photocatalyst material and its preparation method and application is changed on more particularly to a kind of Er ions yttrium aluminate/concave convex rod.Yttrium nitrate, erbium nitrate, aluminum nitrate and citric acid are added in deionized water and stirred, water-bath is then carried out to vitreosol, is dried to xerogel, finally calcines, grinding obtains Er ions yttrium aluminate composite;It is distributed to again with concave convex rod in deionized water, regulation system pH promotes Er ions yttrium aluminate composite and concave convex rod compound, then is evaporated by water-bath to moisture, and grinding is to obtain Er ions yttrium aluminate/concave convex rod composite photocatalyst material after calcining.
Description
Technical field
The invention belongs to new chemical materialses field, complex light is changed on more particularly to a kind of Er ions yttrium aluminate/concave convex rod
Catalysis material and its preparation method and application.
Background technology
Up-conversion luminescence is that the photon of a high-energy is changed out on the photon for absorb two or more low energy.
Rare earth element has unique electron structure so that rare earth luminescent material can absorb near-infrared, visible and ultraviolet etc. various
The radiation of wavelength.Due to its internal energy level transition having between abundant 4f so that rare earth up-conversion luminescent material turns into luminous
The main flow of material.Therefore, can be by the near-infrared in sunshine by rare earth up-conversion and the semiconductors coupling of ultraviolet light response
Ultraviolet light is converted on light and visible ray, greatly improves the utilization rate of sunshine, so as to improve the photocatalytic activity of semiconductor.
The content of the invention
In order to solve the problems, such as the utilization rate of sunshine, the invention provides turn on a kind of Er ions yttrium aluminate/concave convex rod
Composite photocatalyst material is changed, its composition formula is:Er3+YAlO3/ ATP,
Wherein, Er/ (Er+Y)=0.01~0.02, Er3+YAlO3Account for the 20%~60% of ATP mass.
Present invention also offers the preparation side that composite photocatalyst material is changed on a kind of above-mentioned Er ions yttrium aluminate/concave convex rod
Method:
(1) yttrium nitrate, erbium nitrate, aluminum nitrate and citric acid are added in deionized water and stirred, it is anti-then to carry out water-bath
It should be dried to xerogel, finally calcining, grinding to vitreosol and obtain Er ions yttrium aluminate composite,
Wherein, the molar ratio of citric acid and metal ion (yttrium, erbium, aluminium three sum) is 1:1~5:1,
Bath temperature is 50~80 DEG C;
(2) the Er ions yttrium aluminate composite obtained in step (1) and concave convex rod are distributed in deionized water, adjusted
System pH promotes Er ions yttrium aluminate composite and concave convex rod compound, then is evaporated by water-bath to moisture, is ground after calcining
Mill obtains Er ions yttrium aluminate/concave convex rod composite photocatalyst material,
Regulation system pH is 2~5 so that Er3+YAlO3Different electric charges, i.e. concave convex rod surface are carried from concave convex rod surface
With negative electrical charge, Er ions yttrium aluminate surface carries positive charge, promotes Er ions yttrium aluminate and bumps so as to produce electrostatic attraction
Rod it is compound.
Present invention also offers on a kind of above-mentioned Er ions yttrium aluminate/concave convex rod change composite photocatalyst material application,
Photocatalysis desulfurization is carried out using the composite photocatalyst material.
The beneficial effects of the present invention are:
It is found by the applicant that:Concave convex rod is due to the iron oxide containing semiconductor property inside it so that concave convex rod also has half
Conductor nature, only can be to ultraviolet light response, so very low to the utilization rate of sunshine yet with its greater band gap;Cause
This present invention is made on the nonabsorbable near infrared light of concave convex rod and visible ray by the way that rare earth up-conversion is compound with concave convex rod
Ultraviolet light is converted to, has widened the photoresponse scope of concave convex rod indirectly, improves the utilization rate of sunshine;
The method that the present invention uses electrostatic attraction, under certain pH conditions, concave convex rod surface carries negative electricity, is changed on rare earth
Material surface carries positive electricity, enhances the combination between conversion and semiconductor, avoids rare earth up-conversion and semiconductor
Simple mechanical mixture, be easy to during photocatalysis desulfurization depart from the problem of;
Concave convex rod in the present invention is excited as semiconductor generates light induced electron with hole with sulfur-containing compound of degrading
Meanwhile the peculiar absorption property that other semiconductors do not possess has been played, because itself having larger specific surface area and uniqueness
Pore passage structure, the meeting absorbed portion sulfur-containing compound in photocatalysis sweetening process, so as to improve desulfurization degree.
Brief description of the drawings
Fig. 1 is Y prepared by the embodiment of the present invention 10.98Er0.02AlO3, 40%Y0.98Er0.02AlO3/ ATP's and raw material A TP
XRD;
Fig. 2 is Y prepared by the embodiment of the present invention 10.98Er0.02AlO3SEM figure;
Fig. 3 is 40%Y prepared by the embodiment of the present invention 10.98Er0.02AlO3/ ATP SEM figures.
Embodiment
Embodiment 1
(1) by 3.01g yttrium nitrates, 0.07g erbium nitrates, 3.00g aluminum nitrates and 10.09g citric acids be added to 100ml go from
Stirred in sub- water, then 60 DEG C of water-baths to vitreosol, by its 80 DEG C dryings to xerogel, last 1100 DEG C of calcinings 2h,
Grinding obtains Er ions yttrium aluminate composite Y0.98Er0.02AlO3;
(2) the Er ions yttrium aluminate composite Y that will be obtained in 0.4g steps (1)0.98Er0.02AlO3With 1.0g concave convex rods
It is distributed in 100ml deionized waters, regulation system pH is 4.5, then is evaporated by 60 DEG C of water-bath to moisture, 400 DEG C of calcinings
Grinding obtains Er ions yttrium aluminate/concave convex rod composite photocatalyst material 40%Y after 2h0.98Er0.02AlO3/ATP。
X-ray powder diffraction is carried out to gained sample and characterizes its structure and composition, and is seen using SEM
The pattern of sample is examined, the 40%Y prepared according to the technique of embodiment 10.98Er0.02AlO3/ ATP XRD is as shown in figure 1, compound
Occurs Er in material respectively3+YAlO3With ATP characteristic peak, illustrate Er3+YAlO3Success is compound with ATP, has prepared Er3+
YAlO3Composite photocatalyst material is changed on/ATP;
Y obtained by the present embodiment step (1)0.98Er0.02AlO3SEM it is as shown in Figure 2:Show particle shape;This reality
Apply the 40%Y obtained by a step (2)0.98Er0.02AlO3/ ATP SEM is as shown in Figure 3:40%Y0.98Er0.02AlO3It is tight with ATP
Close combination, it is consistent with XRD results;
Present invention also offers one kind to utilize composite photocatalyst material 40%Y manufactured in the present embodiment0.98Er0.02AlO3/
The method that ATP carries out photocatalysis desulfurization:0.4031g dibenzothiophenes is weighed to be dissolved in 500ml normal octanes to prepare 200ppm
Simulation oil, 40%Y is added in photocatalytic reaction device0.98Er0.02AlO3/ ATP and simulation oil (mass ratio 1:1000), secretly
Absorption 30min after introduce simulated solar irradiation, every half an hour collect a sample, add N-N, dimethylformamide extraction on
Layer clear liquid, sulfur content is determined with UV suLfur anaLyzer, desulfurization degree (%) calculates according to following equation:
D=(1-Ct/C0) * 100%
Wherein:C0For the sulfur content of initial soln, CtSulfur content during to react the t times in solution system, in 3h illumination
Under, 40%Y0.98Er0.02AlO3/ ATP desulfurization degree has reached 94%.
Embodiment 2
(1) with embodiment 1;
(2) the Er ions yttrium aluminate composite Y that will be obtained in 0.2g steps (1)0.98Er0.02AlO3With 1.0g concave convex rods
It is distributed in 100ml deionized waters, regulation system pH is 4.5, then is evaporated by 60 DEG C of water-bath to moisture, 400 DEG C of calcinings
Grinding obtains Er ions yttrium aluminate/concave convex rod composite photocatalyst material 20%Y after 2h0.98Er0.02AlO3/ATP。
Subsequent detection such as embodiment 1.
Embodiment 3
(1) with embodiment 1;
(2) the Er ions yttrium aluminate composite Y that will be obtained in 0.6g steps (1)0.98Er0.02AlO3With 1.0g concave convex rods
It is distributed in 100ml deionized waters, regulation system pH is 4.5, then is evaporated by 60 DEG C of water-bath to moisture, 400 DEG C of calcinings
Grinding obtains Er ions yttrium aluminate/concave convex rod composite photocatalyst material 60%Y after 2h0.98Er0.02AlO3/ATP。
Subsequent detection such as embodiment 1.
Embodiment 4
(1) by 3.03g yttrium nitrates, 0.04g erbium nitrates, 3.00g aluminum nitrates and 10.09g citric acids be added to 100ml go from
Stirred in sub- water, then 60 DEG C of water-baths to vitreosol, by its 80 DEG C dryings to xerogel, last 1100 DEG C of calcinings 2h,
Grinding obtains Er ions yttrium aluminate composite Y0.99Er0.01AlO3;
(2) the Er ions yttrium aluminate composite Y that will be obtained in 0.2g steps (1)0.99Er0.01AlO3With 1.0g concave convex rods
It is distributed in 100ml deionized waters, regulation system pH is 4.5, then is evaporated by 60 DEG C of water-bath to moisture, 400 DEG C of calcinings
Grinding obtains Er ions yttrium aluminate/concave convex rod composite photocatalyst material 20%Y after 2h0.99Er0.01AlO3/ATP。
Subsequent detection such as embodiment 1.
Embodiment 5
(1) with embodiment 4;
(2) the Er ions yttrium aluminate composite Y that will be obtained in 0.6g steps (1)0.99Er0.01AlO3With 1.0g concave convex rods
It is distributed in 100ml deionized waters, regulation system pH is 4.5, then is evaporated by 60 DEG C of water-bath to moisture, 400 DEG C of calcinings
Grinding obtains Er ions yttrium aluminate/concave convex rod composite photocatalyst material 60%Y after 2h0.99Er0.01AlO3/ATP。
Subsequent detection such as embodiment 1.
Comparative example 1
Step is not adjusted in (2) to acid-base value, and remaining operation is the same as embodiment 1:
(1) with embodiment 1;
(2) the Er ions yttrium aluminate composite Y that will be obtained in 0.4g steps (1)0.98Er0.02AlO3With 1.0g concave convex rods
It is distributed in 100ml deionized waters, is evaporated by 60 DEG C of water-bath to moisture, grinding is to obtain erbium to mix after 400 DEG C of calcining 2h
Miscellaneous yttrium aluminate/concave convex rod composite photocatalyst material 40%Y0.98Er0.02AlO3/ATP。
Subsequent detection such as embodiment 1.Under 3h illumination, the 40%Y of this comparative example preparation0.98Er0.02AlO3/ ATP's
Desulfurization degree is only 72%, and this is due to that shaping adhesion in this comparative example between concave convex rod and up-conversion is undesirable
Caused by.
Claims (6)
1. change composite photocatalyst material on a kind of Er ions yttrium aluminate/concave convex rod, it is characterised in that:The composite photocatalyst material
The composition formula of material is Er3+YAlO3/ATP。
2. change composite photocatalyst material on Er ions yttrium aluminate/concave convex rod as claimed in claim 1, it is characterised in that:Press
Mol ratio calculates, Er/ (Er+Y)=0.01~0.02;Er3+YAlO3Account for the 20%~60% of ATP mass.
3. the preparation method of composite photocatalyst material is changed on a kind of Er ions yttrium aluminate/concave convex rod, it is characterised in that:The system
Preparation Method is,
(1) yttrium nitrate, erbium nitrate, aluminum nitrate and citric acid are added in deionized water and stirred, then carry out water-bath extremely
Vitreosol, it is dried to xerogel, finally calcines, grinding obtains Er ions yttrium aluminate composite;
(2) the Er ions yttrium aluminate composite obtained in step (1) and concave convex rod are distributed in deionized water, regulation system
PH, then be evaporated by water-bath to moisture, grinding is to obtain Er ions yttrium aluminate/concave convex rod composite photocatalyst material after calcining
Material.
4. changing the preparation method of composite photocatalyst material on Er ions yttrium aluminate/concave convex rod as claimed in claim 3, it is special
Sign is:In step (1), the molar ratio of citric acid and metal ion is 1:1~5:1.
5. changing the preparation method of composite photocatalyst material on Er ions yttrium aluminate/concave convex rod as claimed in claim 3, it is special
Sign is:In step (1), bath temperature is 50~80 DEG C.
6. changing the preparation method of composite photocatalyst material on Er ions yttrium aluminate/concave convex rod as claimed in claim 3, it is special
Sign is:In step (2), regulation system pH is 2~5.
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CN108565479A (en) * | 2018-04-16 | 2018-09-21 | 淮阴工学院 | Attapulgite composite material and its preparation method and application |
CN109110928A (en) * | 2018-08-31 | 2019-01-01 | 江苏新亿源环保科技有限公司 | The cultural method of biomembrane on a kind of biologic packing material |
CN109621940A (en) * | 2018-12-12 | 2019-04-16 | 常州大学 | A kind of rear-earth-doped lithium niobate/attapulgite composite photocatalyst material and the preparation method and application thereof |
CN109999838A (en) * | 2019-05-09 | 2019-07-12 | 江苏纳欧新材料有限公司 | A kind of wide spectrum response vanadic sulfide/palygorskite nano composite material preparation method and application |
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CN102409404A (en) * | 2010-12-16 | 2012-04-11 | 中国科学院福建物质结构研究所 | Novel medium wave infrared laser crystal made of erbium activated calcium yttrium aluminates |
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CN109999838A (en) * | 2019-05-09 | 2019-07-12 | 江苏纳欧新材料有限公司 | A kind of wide spectrum response vanadic sulfide/palygorskite nano composite material preparation method and application |
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