CN108435210A - A kind of cadmium niobate/cadmium sulfide composite photo-catalyst and preparation method thereof - Google Patents
A kind of cadmium niobate/cadmium sulfide composite photo-catalyst and preparation method thereof Download PDFInfo
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- CN108435210A CN108435210A CN201810274932.3A CN201810274932A CN108435210A CN 108435210 A CN108435210 A CN 108435210A CN 201810274932 A CN201810274932 A CN 201810274932A CN 108435210 A CN108435210 A CN 108435210A
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- 229910052980 cadmium sulfide Inorganic materials 0.000 title claims abstract description 50
- 229910052793 cadmium Inorganic materials 0.000 title claims abstract description 46
- 239000002131 composite material Substances 0.000 title claims abstract description 46
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 title claims abstract description 45
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000010955 niobium Substances 0.000 claims abstract description 23
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 17
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003960 organic solvent Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 4
- 229910017053 inorganic salt Inorganic materials 0.000 claims abstract description 3
- 239000012266 salt solution Substances 0.000 claims abstract description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 235000019441 ethanol Nutrition 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 238000003828 vacuum filtration Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- LVEULQCPJDDSLD-UHFFFAOYSA-L cadmium fluoride Chemical compound F[Cd]F LVEULQCPJDDSLD-UHFFFAOYSA-L 0.000 claims description 4
- XNHGKSMNCCTMFO-UHFFFAOYSA-D niobium(5+);oxalate Chemical compound [Nb+5].[Nb+5].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O XNHGKSMNCCTMFO-UHFFFAOYSA-D 0.000 claims description 4
- YHBDIEWMOMLKOO-UHFFFAOYSA-I pentachloroniobium Chemical compound Cl[Nb](Cl)(Cl)(Cl)Cl YHBDIEWMOMLKOO-UHFFFAOYSA-I 0.000 claims description 4
- UYJXRRSPUVSSMN-UHFFFAOYSA-P ammonium sulfide Chemical compound [NH4+].[NH4+].[S-2] UYJXRRSPUVSSMN-UHFFFAOYSA-P 0.000 claims description 3
- LHQLJMJLROMYRN-UHFFFAOYSA-L cadmium acetate Chemical compound [Cd+2].CC([O-])=O.CC([O-])=O LHQLJMJLROMYRN-UHFFFAOYSA-L 0.000 claims description 3
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims description 3
- DPLVEEXVKBWGHE-UHFFFAOYSA-N potassium sulfide Chemical compound [S-2].[K+].[K+] DPLVEEXVKBWGHE-UHFFFAOYSA-N 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical compound [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 claims description 2
- XIEPJMXMMWZAAV-UHFFFAOYSA-N cadmium nitrate Inorganic materials [Cd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XIEPJMXMMWZAAV-UHFFFAOYSA-N 0.000 claims description 2
- RMCKOIXJLDOSOT-UHFFFAOYSA-L cadmium(2+);oxalate Chemical compound [Cd+2].[O-]C(=O)C([O-])=O RMCKOIXJLDOSOT-UHFFFAOYSA-L 0.000 claims description 2
- 238000003682 fluorination reaction Methods 0.000 claims description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 2
- 229910000484 niobium oxide Inorganic materials 0.000 claims description 2
- NMHMNPHRMNGLLB-UHFFFAOYSA-N phloretic acid Chemical compound OC(=O)CCC1=CC=C(O)C=C1 NMHMNPHRMNGLLB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 230000001699 photocatalysis Effects 0.000 abstract description 12
- 239000000843 powder Substances 0.000 abstract description 11
- 238000007146 photocatalysis Methods 0.000 abstract description 10
- 239000002904 solvent Substances 0.000 abstract description 4
- 238000005342 ion exchange Methods 0.000 abstract description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 150000001450 anions Chemical class 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000006555 catalytic reaction Methods 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 2
- 229910003334 KNbO3 Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- CFJRGWXELQQLSA-UHFFFAOYSA-N azanylidyneniobium Chemical compound [Nb]#N CFJRGWXELQQLSA-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003426 co-catalyst Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/04—Sulfides
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of cadmium niobate/cadmium sulfide composite photo-catalysts and preparation method thereof.It is dried after first mixing in cadmium source, niobium source with organic solvent through 10 100 DEG C of normal pressures, volatilization removes solvent and forms powder, then the presoma of cadmium niobate/cadmium sulfide composite photo-catalyst is obtained by high-temperature process, gained presoma is mixed in the inorganic salt solution of sulfur-containing anion again, the cadmium niobate/cadmium sulfide composite photo-catalyst is made.The present invention prepares cadmium niobate/cadmium sulfide composite photo-catalyst presoma using solvent from evaporation method for the first time, then prepares the composite photo-catalyst by ion-exchange；Its gained composite photo-catalyst has wider light abstraction width, and light induced electron and hole can be made to efficiently separate, and then improves photocatalysis utilization ratio.
Description
Technical field
The invention belongs to catalysis material technical fields, and in particular to a kind of cadmium niobate/cadmium sulfide composite photo-catalyst and
Preparation method.
Background technology
Since the twentieth century second half, drastically develop along with industrialized, fossil energy has been approached exhaustion.Meanwhile by
In the excessive use of fossil fuel, environmental pollution has reached unprecedented serious degree.New and effective clean energy resource is developed, is had become
The significant task for having to face for whole world science and technology circle.Photocatalysis technology, will because that can decompose water manufacture cleaning hydrogen energy source
Greenhouse gases CO2Again it is reduced to carbonaceous organic material, so as to cause domestic and international extensive research interest.Development of Novel complex light
Catalysis material extends its solar energy utilization ratio, improves the quantum conversion of light-catalyzed reaction, is both the core of photocatalysis research
The bottleneck problem that the heart and photocatalysis technology future practical application must be broken through.
During the last ten years, many materials are applied to photocatalysis technology and study, and niobic acid salt for photocatalysis technology development four
Object is closed in numerous catalysis materials to show one's talent.Niobates has unique crystal structure and physicochemical properties, is applied to
Degradating organic dye, Photocatalyzed Hydrogen Production production oxygen etc. show the advantage that thermal stability is good, photocatalytic activity is high.Choi is reported
KNbO3It is CdS-loaded that its Photocatalyzed Hydrogen Production activity, KNbO can be effectively promoted under conditions of nickel oxide is as co-catalyst3It shows
Excellent carrier and facilitation.
Cadmium niobate is also the material being had been a concern in niobates, due to itself distinctive piezoelectric effect and luminescence generated by light
Effect is often used as piezoelectric material, ferroelectric material and microwave dielectric ceramic etc. instead of traditional leaded equal heavy metal materials,
But it is seldom in the research of photocatalytic applications at present.
Invention content
The purpose of the present invention is to provide a kind of cadmium niobate/cadmium sulfide composite photo-catalysts and preparation method thereof.This is compound
Photochemical catalyst has wider light abstraction width, and its light induced electron and the recombination rate in hole are low, can effectively improve photocatalysis
Utilization ratio.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of cadmium niobate/cadmium sulfide composite photo-catalyst, be by niobium source and cadmium source in the case where organic solvent is mixed by solvent from
Volatilization, high-temperature roasting form cadmium niobate/cadmium sulfide composite photo-catalyst presoma, are then made again by the method for ion exchange
Cadmium niobate/cadmium sulfide composite photo-catalyst；Preparation method specifically includes following steps：
1）It is 4 by the molar ratio of metallic atom Nb and Cd:1~1:4 are added niobium source, cadmium source in the bottle of 10-100mL, then press Nb
1 ~ 10000 times of addition organic solvent of atomic mol, is mixed 1 ~ 6h, normal pressure dries to obtain mixture at 10-100 DEG C；
2）By step 1）In obtained mixture be placed in Muffle furnace, 1-24h is roasted under the conditions of 100 ~ 600 DEG C, is obtained in bottle
White powder is scraped powder to get to cadmium niobate/cadmium sulfide composite photo-catalyst presoma with plastic spatula；
3）By step 2）In obtain cadmium niobate/cadmium sulfide composite photo-catalyst presoma be added sulfite ion concentration be 0.01-
In the inorganic salt solution of 2mol/L, it is mixed after 1 ~ 2h and is washed successively through vacuum filtration, deionized water washing, ethyl alcohol, then
2-10h is toasted at 40 ~ 100 DEG C, the cadmium niobate/cadmium sulfide composite photo-catalyst is made.
Wherein, the niobium source is one or more of niobium chloride, niobium oxalate, fluorination niobium, niobium oxide.
The cadmium source is one or more of caddy, cadmium oxalate, cadmium acetate, cadmium nitrate, cadmium fluoride.
The organic solvent is one or more of methanol, ethyl alcohol, formaldehyde, acetaldehyde, acetone, benzene.
The inorganic salts are one or more of vulcanized sodium, NaHS, potassium sulfide, ammonium sulfide.
The present invention is compared with the remarkable advantage of the prior art：
（1）Gained composite photo-catalyst of the invention has wider light abstraction width, and light induced electron and hole can be made effectively to divide
From to be remarkably improved its photocatalysis utilization ratio.
（2）The method that the present invention uses solvent from volatilization for the first time prepares composite photo-catalyst, easy to operate, by primary
Heating can synthesize composite catalyst, can effectively save energy consumption.
Specific implementation mode
In order to make content of the present invention easily facilitate understanding, With reference to embodiment to of the present invention
Technical solution is described further, but the present invention is not limited only to this.
Embodiment 1
It is 4 by the molar ratio of metallic atom Nb and Cd:1 is added niobium oxalate and cadmium fluoride in the bottle of 25mL, then presses Nb atoms
100 times of addition ethyl alcohol of mole, are mixed 1h, normal pressure dries to obtain mixture at 40 DEG C；Obtained mixture is placed in
In Muffle furnace, 4h is roasted under the conditions of 500 DEG C, white powder is obtained in bottle, scraped powder to get to niobic acid with plastic spatula
Cadmium/cadmium sulfide composite photo-catalyst presoma；Sulphion is added in obtained cadmium niobate/cadmium sulfide composite photo-catalyst presoma
Content is to be mixed after 2h and washed successively through vacuum filtration, deionized water washing, ethyl alcohol in the sodium sulfide solution of 0.1mol/L
It washs, then 6h is toasted at 80 DEG C, cadmium niobate/cadmium sulfide composite photo-catalyst is made.
Embodiment 2
It is 3 by the molar ratio of metallic atom Nb and Cd:1 is added niobium chloride, cadmium fluoride in the bottle of 40mL, then rubs by Nb atoms
300 times of addition propyl alcohol of your amount, are mixed 1h, normal pressure dries to obtain mixture at 40 DEG C；Obtained mixture is placed in horse
Not in stove, 6h is roasted under the conditions of 300 DEG C, white powder is obtained in bottle, scraped powder to get to niobic acid with plastic spatula
Cadmium/cadmium sulfide composite photo-catalyst presoma；Sulphion is added in obtained cadmium niobate/cadmium sulfide composite photo-catalyst presoma
Content is to be mixed after 2h and washed successively through vacuum filtration, deionized water washing, ethyl alcohol in the potassium sulfide aqueous solution of 0.5mol/L
It washs, then 5h is toasted at 70 DEG C, cadmium niobate/cadmium sulfide composite photo-catalyst is made.
Embodiment 3
It is 1 by the molar ratio of metallic atom Nb and Cd:1 is added niobium oxalate, cadmium acetate in the bottle of 25mL, then rubs by Nb atoms
500 times of addition methanol of your amount, are mixed 6h, normal pressure dries to obtain mixture at 50 DEG C；Obtained mixture is placed in horse
Not in stove, 4h is roasted under the conditions of 500 DEG C, white powder is obtained in bottle, scraped powder to get to niobic acid with plastic spatula
Cadmium/cadmium sulfide composite photo-catalyst presoma；Sulphion is added in obtained cadmium niobate/cadmium sulfide composite photo-catalyst presoma
Content is to be mixed after 1.5h successively through vacuum filtration, deionized water washing, ethyl alcohol in the ammonium sulfide solution of 1.5mol/L
Washing, then 8h is toasted at 60 DEG C, cadmium niobate/cadmium sulfide composite photo-catalyst is made.
Embodiment 4
It is 1 by the molar ratio of metallic atom Nb and Cd:2 are added niobium chloride, caddy in the bottle of 100mL, then press Nb atoms
200 times of addition acetone of mole, are mixed 5h, normal pressure dries to obtain mixture at 40 DEG C；Obtained mixture is placed in
In Muffle furnace, 8h is roasted under the conditions of 400 DEG C, white powder is obtained in bottle, scraped powder to get to niobic acid with plastic spatula
Cadmium/cadmium sulfide composite photo-catalyst presoma；Sulphion is added in obtained cadmium niobate/cadmium sulfide composite photo-catalyst presoma
Content is to be mixed after 1h and washed successively through vacuum filtration, deionized water washing, ethyl alcohol in the sodium hydrosulfide aqueous solution of 2mol/L
It washs, then 8h is toasted at 60 DEG C, cadmium niobate/cadmium sulfide composite photo-catalyst is made.
1. cadmium niobate/cadmium sulfide composite photo-catalyst prepared in above-described embodiment 1 ~ 4 is taken 0.1g, it is put into and is equipped with
0.2mol/L Na2S and Na2SO3It is 500r/min in rotating speed using natural light as light source in the photo catalysis reactor of mixed solution
Under conditions of test photocatalysis produce hydrogen activity, the results are shown in Table 1.
The catalytic activity of cadmium niobate/cadmium sulfide composite photo-catalyst prepared by 1 embodiment of the present invention of table
2. by the cadmium niobate prepared by embodiment 3/cadmium sulfide composite photo-catalyst and existing cadmium sulfide, niobium titanate/cadmium sulfide
（Preparation method is referring to Jiang Shaofeng " preparation of the pillared titanium niobic acid mesoporous composite materials of CdS and photolysis water hydrogen activity "）, nitridation
Niobium/cadmium sulfide（Preparation method referring to CN 105854924A " a kind of niobium nitride/cadmium sulfide composite nanoparticle photochemical catalyst
Preparation method "）And niobium pentaoxide/cadmium sulfide（Preparation method referring to Yue Zongkuan, " urge by the preparation of niobium based composites and its light
Change H2-producing capacity research "）Production hydrogen activity comparison is carried out under the same conditions, the results are shown in Table 2.
The different catalysis material production hydrogen activity comparisons of table 2
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with repair
Decorations should all belong to the covering scope of the present invention.
Claims (6)
1. a kind of preparation method of cadmium niobate/cadmium sulfide composite photo-catalyst, it is characterised in that：Include the following steps：
1）It is 4 by the molar ratio of metallic atom Nb and Cd:1~1:4 are added niobium source, cadmium source in bottle, then press Nb atomic mols
1 ~ 10000 times of addition organic solvent, 1 ~ 6h is mixed, normal pressure dries to obtain mixture at 10-100 DEG C；
2）By step 1）In obtained mixture be placed in Muffle furnace, roast 1-24h under the conditions of 100 ~ 600 DEG C, obtain niobic acid
Cadmium/cadmium sulfide composite photo-catalyst presoma；
3）By step 2）In obtained cadmium niobate/cadmium sulfide composite photo-catalyst presoma to be added to sulfite ion concentration be 0.01-
In the inorganic salt solution of 2mol/L, it is mixed after 1 ~ 2h and is washed successively through vacuum filtration, deionized water washing, ethyl alcohol, then
2-10h is toasted at 40 ~ 100 DEG C, the cadmium niobate/cadmium sulfide composite photo-catalyst is made.
2. the preparation method of cadmium niobate according to claim 1/cadmium sulfide composite photo-catalyst, it is characterised in that：It is described
Niobium source is one or more of niobium chloride, niobium oxalate, fluorination niobium, niobium oxide.
3. the preparation method of cadmium niobate according to claim 1/cadmium sulfide composite photo-catalyst, it is characterised in that：It is described
Cadmium source is one or more of caddy, cadmium oxalate, cadmium acetate, cadmium nitrate, cadmium fluoride.
4. the preparation method of cadmium niobate according to claim 1/cadmium sulfide composite photo-catalyst, it is characterised in that：It is described
Organic solvent is one or more of methanol, ethyl alcohol, formaldehyde, acetaldehyde, acetone, benzene.
5. the preparation method of cadmium niobate according to claim 1/cadmium sulfide composite photo-catalyst, it is characterised in that：It is described
Inorganic salts are one or more of vulcanized sodium, NaHS, potassium sulfide, ammonium sulfide.
6. cadmium niobate/cadmium sulfide composite photo-catalyst made from a kind of method as described in claim 1.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115304101A (en) * | 2022-08-22 | 2022-11-08 | 福州大学 | Cadmium niobate nano material and preparation method and application thereof |
| CN116078439A (en) * | 2022-09-08 | 2023-05-09 | 上海理工大学 | Two-dimensional material modified zirconium-based catalyst and preparation method and application thereof |
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| CN107376943A (en) * | 2017-07-20 | 2017-11-24 | 江苏大学 | A kind of preparation method and purposes of calcium niobate potassium/cadmium sulfide composite material |
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| CN105709793A (en) * | 2016-01-26 | 2016-06-29 | 苏州大学 | Cadmium sulfide nanoparticle modified niobium pentoxide nanorod/nitrogen doped graphene composite photocatalyst and preparation method and application thereof |
| CN106964379A (en) * | 2017-03-23 | 2017-07-21 | 福州大学 | Contain ZnI with photocatalysis antibacterial function2The preparation method of I/ZnO composites |
| CN107376943A (en) * | 2017-07-20 | 2017-11-24 | 江苏大学 | A kind of preparation method and purposes of calcium niobate potassium/cadmium sulfide composite material |
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| CN115304101A (en) * | 2022-08-22 | 2022-11-08 | 福州大学 | Cadmium niobate nano material and preparation method and application thereof |
| CN115304101B (en) * | 2022-08-22 | 2023-10-27 | 福州大学 | Cadmium niobate nano material and preparation method and application thereof |
| CN116078439A (en) * | 2022-09-08 | 2023-05-09 | 上海理工大学 | Two-dimensional material modified zirconium-based catalyst and preparation method and application thereof |
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