CN101602002A - A kind of preparation method of high efficiency photocatalyst of nickel oxide supported tantalate - Google Patents
A kind of preparation method of high efficiency photocatalyst of nickel oxide supported tantalate Download PDFInfo
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- CN101602002A CN101602002A CNA2009100168730A CN200910016873A CN101602002A CN 101602002 A CN101602002 A CN 101602002A CN A2009100168730 A CNA2009100168730 A CN A2009100168730A CN 200910016873 A CN200910016873 A CN 200910016873A CN 101602002 A CN101602002 A CN 101602002A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 229910000480 nickel oxide Inorganic materials 0.000 title claims abstract description 19
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 11
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 13
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims abstract description 10
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000047 product Substances 0.000 claims abstract description 10
- 229910001936 tantalum oxide Inorganic materials 0.000 claims abstract description 10
- 239000000243 solution Substances 0.000 claims abstract description 9
- 239000011858 nanopowder Substances 0.000 claims abstract description 8
- 235000012459 muffins Nutrition 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 230000007935 neutral effect Effects 0.000 claims abstract description 5
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 4
- 239000011259 mixed solution Substances 0.000 claims abstract description 4
- 238000013461 design Methods 0.000 claims abstract description 3
- 238000001035 drying Methods 0.000 claims abstract description 3
- 238000001704 evaporation Methods 0.000 claims abstract description 3
- 230000008020 evaporation Effects 0.000 claims abstract description 3
- 238000012423 maintenance Methods 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 36
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 239000000376 reactant Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000003643 water by type Substances 0.000 claims description 2
- 239000011812 mixed powder Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 abstract description 11
- 230000001699 photocatalysis Effects 0.000 abstract description 7
- 239000002253 acid Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 5
- 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 abstract description 4
- 230000002950 deficient Effects 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 229910052708 sodium Inorganic materials 0.000 abstract description 4
- 239000011734 sodium Substances 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000012153 distilled water Substances 0.000 description 5
- 238000007146 photocatalysis Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 238000003746 solid phase reaction Methods 0.000 description 2
- 238000003828 vacuum filtration Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- JVOQKOIQWNPOMI-UHFFFAOYSA-N ethanol;tantalum Chemical compound [Ta].CCO JVOQKOIQWNPOMI-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003836 solid-state method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000007704 wet chemistry method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The invention provides a kind of preparation method of high efficiency photocatalyst of nickel oxide supported tantalate, comprise the following steps: that (1) evenly is dispensed into tantalum oxide in the excess base solution, inserts in the reactor; (2) reactor is placed maintenance a period of time under the design temperature, hydro-thermal reaction fully takes place; (3) after hydro-thermal reaction finishes, the product in the reactor fully being washed, filters, is neutral until eluate, makes the tantalates nano-powder after the drying; (4) a certain amount of tantalates nano-powder is dispersed in an amount of nickel nitrate solution, this mixed solution of evaporation at constant temperature obtains muffin; (5) muffin after the fine grinding is put in the Muffle furnace calcines, just obtain end product.The present invention adopts raw material cheap, and equipment and technology is simple, and the tantalic acid sodium light catalyst structure defective of preparation is few, and particle diameter is little, and good dispersion gives tantalates good photocatalytic activity.
Description
Technical field
The present invention relates to a kind of preparation method of efficient nano tantalates photochemical catalyst, be specifically related to a kind of method of nickel oxide loaded nano tantalates photochemical catalyst, be raw material particularly with the tantalum oxide, the synthetic tantalates powder with nanoscale, good crystallinity of hydro-thermal improves its photocatalysis effect by infusion process load nickel oxide then in NaOH and/or potassium hydroxide solution.Belong to field of nanometer technology.
Background technology
Along with the development of dyeing industry, organic pollutions such as dye well dye solvent have become a class main environmental pollution thing.Traditional dye wastewater processing method just adopts physical method that organic matter is shifted, and dye molecule itself does not decompose, so these degraded modes can not realize removal truly; Also available in addition chemistry or biological method, but because these materials substantially all contain phenyl ring, biodegrading process such as present employed chemistry and biology not only cost are higher but also be difficult to obtain preferable effect, so it is applied and is restricted.
TiO
2Have advantage such as chemical property is stable, cost is low, nontoxic, indissoluble and be acknowledged as desirable catalysis material.Yet TiO
2Visible light-responded poor, solar energy utilization ratio low (about 4%), and light induced electron and hole are easy to compoundly in the catalytic reaction, and photo-quantum efficiency is low.Though at present can improve TiO by methods such as metal ion mixing, nonmetal doping, noble metal i deposition, semiconductor are compound
2Visible light respective range and photocatalytic activity, but problem is not still improved at all.In recent years there is the researcher to find that the tantalates photochemical catalyst has advantages of high catalytic activity, the research that comprises alkali metal tantalate, alkaline earth metal tantalate and rare earth doped tantalates photochemical catalyst causes material science worker's extensive interest, these catalyst are under the situation that does not have other photochemical catalyst of load, and the activity of its photochemical catalyzing is higher than titanium dioxide far away.
The method for preparing tantalates that adopts is a lot of at present.What generally adopt is high temperature solid-state method, and people such as Hideki Kato obtained the tantalates catalyst in 10 hours 1150 ℃ of calcinings, but because the calcining heat of this method is higher, the time is longer, thus the particle diameter of the product that obtains all at 2-3 μ m, specific area is less than 1m
2/ g has limited its photocatalysis efficiency greatly.Employing solid phase reaction such as Liu Yingliang and hydro-thermal method composite methods make a kind of cubic structure, bar-shaped tantalic acid sodium, but this method operation is loaded down with trivial details, and synthetic sample particle diameter is big, is easy to generate lattice defect.The hot ammonia of human such as Pascal Maillard are separated the synthesizing rare-earth tantalates, though the hot ammonia method of separating has reduced reaction temperature, molten-salt growth method prepares tantalates, and power consumption is high, and size of microcrystal is uncontrollable.
Summary of the invention
The objective of the invention is to overcome technical barriers such as the complicated process of preparation, the particle diameter that exist in the present tantalates photochemical catalyst preparation are big, defective is many, power consumption is high, photocatalysis efficiency is low, the preparation method of nickel oxide loaded nano tantalates under a kind of temperate condition is provided.This method device therefor is simple, and reaction unit is common hydrothermal reaction kettle, and technology is easy, and product purity height, particle diameter are little, and defective is few, photocatalysis efficiency is high.
For achieving the above object, the present invention has adopted following technical proposals.
Preparation method of the present invention may further comprise the steps:
(1) tantalum oxide is dispersed in excessive (exceeding stoichiometric proportion) aqueous slkali, after insert in the reactor;
(2) reactor is placed maintenance a period of time under the design temperature, hydro-thermal reaction fully takes place;
(3) after hydro-thermal reaction finishes, the product in the reactor is fully washed, filters,, make the tantalates nano-powder after the drying until being neutral;
(4) a certain amount of tantalates nano-powder is dispersed in an amount of nickel nitrate solution, this mixed solution of evaporation at constant temperature obtains muffin;
(5) muffin after the fine grinding is put in the Muffle furnace calcines, just obtain end product.
In the technique scheme, described aqueous slkali is any one or its combination of potassium hydroxide, sodium hydroxide solution.NaOH (potassium) is 1: 5～15 with the mol ratio of tantalum oxide.The reactor inner bag adopts polytetrafluoroethylliner liner; The activity coefficient of reactant in reactor is influential to the phase structure of product, generally adopts 60～80% (volume fractions).The temperature of hydro-thermal reaction is 100～180 ℃, and the hydro-thermal time is 10～24 hours; The hydro-thermal reaction product washs with distilled water, uses the sand core funnel vacuum filtration, removes residue alkali, is neutral until eluate; The tantalates nano-powder is joined in a small amount of nickel nitrate solution, and the load quality mark of control nickel oxide is 0.1～0.5%.The mixed solution of tantalates and nickel nitrate in 80 ℃ of following waters bath with thermostatic control, is evaporated fully until moisture content.Tantalates after the fine grinding, nickel nitrate powder are put in the Muffle furnace,, obtain the nickel oxide supported tantalate powder in 200～300 ℃ of temperature lower calcinations 1～3 hour.
General wet chemistry method adopts ethanol tantalum or other organic salt to do reactant more, and these raw materials and costliness thereof, and to moisture-sensitive.And among the present invention program, raw materials used is tantalum oxide and cheap alkali NaOH (KOH).
In high-temperature solid phase reaction method, because the temperature height causes NaOH (potassium) volatilization serious, so alkali (NaOH, potassium) is excessive on a small quantity, so defective is many.In the patent (200410041816.5) of Nanjing University's application, adopt the water soluble tantalum hydrochlorate to get the tantalates or the niobates of high-specific surface area by the polymer complex legal system.Preparation process is as follows: at first the calcining of tantalum oxide and alkali obtains the tantalates melt, and melt obtains tantalic acid with acetic acid reaction again; Tantalic acid further obtains the tantalic acid presoma with the oxalic acid reaction; Last presoma adds chelating agent and the metal acid-salt reaction obtains target product.This kind method preparation process is very loaded down with trivial details, and the purity to pH and each stage product has strict demand in the experimentation.
The present invention compared with prior art has the following advantages:
NaOH (potassium) excessive in the hydro-thermal reaction of the present invention can be removed through washing, and therefore the tantalates fault of construction that obtains is few.Device therefor is simple in addition, and reaction temperature is lower, saves energy, and preparation process is all carried out at low temperatures, and is easy and simple to handle, need not to add special pressurized equipment, shortened the process time, reduced production cost, and producing feasibility is stronger.And the tantalates photochemical catalyst carry out Ni after its photocatalysis performance also quite high.
Marginal data:
Fig. 1 is SEM (SEM) photo of 0.4420g tantalum oxide and 12 hours gained samples of 140 ℃ of hydro-thermal reactions of 0.6g NaOH;
Fig. 2 is the XRD diffracting spectrum of sample.
The specific embodiment
Embodiment 1
The hydrothermal preparing process of nano sodium tantalate photochemical catalyst of the present invention is as follows:
(1) be to add 0.4420g Ta in the polytetrafluoroethylliner liner of 30ml at volume
2O
5And 0.6gNaOH, make NaOH excessive, the back adds the 25ml dissolved in distilled water;
(2) polytetrafluoroethylliner liner is put into ultrasonic dispersion 15min in the ultrasonic cleaning machine, tantalum oxide is dispersed in the sodium hydroxide solution;
(3) inner bag is put into stainless steel cauldron, be put in the baking oven 140 ℃ of isothermal reactions 12 hours;
(4) naturally cooling to room temperature, the reactor inner bag is taken out, topple over supernatant liquor, pour remaining slurry into sand core funnel, use the vacuum filtration filtering powder, with a large amount of distilled water washings, remove unnecessary NaOH, is neutral until eluate;
(5) with sample in 80 ℃ of baking ovens dry 6 hours, collect sample;
Load nickel oxide tantalic acid sodium powder preparation process as follows:
(1) takes by weighing the NaTaO for preparing under the hydrothermal condition
3Sample 0.5 gram;
(2) Ni (NO that weighs with scale
3)
26H
2O, the doping that makes NiO is 0.2% (mass fraction), with a small amount of distilled water it is dissolved;
(3) with the NaTaO of weighing
3Sample is poured in the nickel nitrate solution for preparing;
(4) under 80 ℃ of water bath with thermostatic control conditions, distilled water is all evaporated, oven drying 1 hour;
(5) sample that mixes is ground, 270 ℃ of calcination 3 hours in Muffle furnace then just obtain target product.
Other embodiment:
Preparation technology is with embodiment 1, and the control response parameter is as follows:
Claims (8)
1, a kind of preparation method of high efficiency photocatalyst of nickel oxide supported tantalate is characterized in that, described preparation method may further comprise the steps:
(1) tantalum oxide is dispersed in excessive (exceeding stoichiometry) aqueous slkali, is placed in the reactor;
(2) reactor is placed maintenance a period of time under the design temperature, hydro-thermal reaction fully takes place;
(3) after hydro-thermal reaction finishes, the product in the reactor fully being washed, filters, is neutral until eluate, makes the tantalates nano-powder after the drying;
(4) the tantalates nano-powder of weighing certain mass is dispersed in an amount of nickel nitrate solution, obtains muffin behind the evaporation at constant temperature;
(5) muffin after the fine grinding is put in the Muffle furnace calcines, just obtain end product.
2, the preparation method of high efficiency photocatalyst of nickel oxide supported tantalate according to claim 1 is characterized in that: described aqueous slkali is any one or its combination of NaOH, potassium hydroxide solution.
3, the preparation method of high efficiency photocatalyst of nickel oxide supported tantalate according to claim 1 is characterized in that: the activity coefficient of reactant in reactor is mutually influential to the thing of product, generally adopts 60～80% (volume fractions).
4, the preparation method of high efficiency photocatalyst of nickel oxide supported tantalate according to claim 1 is characterized in that: the mol ratio of tantalum oxide and alkali is 1: 5～15.
5, the preparation method of high efficiency photocatalyst of nickel oxide supported tantalate according to claim 1 is characterized in that: the temperature of hydro-thermal reaction is 100～180 ℃, and the hydro-thermal time is 10～24 hours.
6, the preparation method of high efficiency photocatalyst of nickel oxide supported tantalate according to claim 1 is characterized in that: the tantalates nano-powder is joined in a small amount of nickel nitrate solution, and the load quality mark of control nickel oxide is 0.1～0.5%.
7, the preparation method of high efficiency photocatalyst of nickel oxide supported tantalate according to claim 1 is characterized in that: the mixed solution of tantalates and nickel nitrate in 80 ℃ of following waters bath with thermostatic control, is evaporated fully until moisture content.
8, the preparation method of high efficiency photocatalyst of nickel oxide supported tantalate according to claim 1, it is characterized in that: the mixed powder of tantalates after the fine grinding and nickel nitrate is put in the Muffle furnace, in 200～300 ℃ of temperature lower calcinations 1～3 hour, obtain the nickel oxide supported tantalate powder.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862650A (en) * | 2010-05-31 | 2010-10-20 | 青岛科技大学 | Method for preparing rare-earth doped and nickel oxide loaded nano sodium tantalate catalyst |
| CN102380408A (en) * | 2011-08-17 | 2012-03-21 | 青岛科技大学 | Method for preparing nanometer sodium metatantalate photocatalysts |
| CN102527372A (en) * | 2011-12-19 | 2012-07-04 | 陕西科技大学 | Method for hydrothermally preparing nitrogen-doped sodium tantalate photochemical catalyst powder |
| CN102553564A (en) * | 2011-12-19 | 2012-07-11 | 陕西科技大学 | Method for preparing nitrogen and fluorine doped sodium tantalum oxide photochemical catalyst powder by hydrothermal method |
| CN104211121A (en) * | 2014-09-05 | 2014-12-17 | 浙江大学 | Preparation method of water soluble sodium tantalate quantum dot with low cost |
| CN106902885A (en) * | 2017-03-29 | 2017-06-30 | 中国矿业大学 | Ion-exchange prepares metal ni-loaded catalyst method and catalyst and application |
| CN110433801A (en) * | 2019-07-30 | 2019-11-12 | 盐城工学院 | It is a kind of for handling bismuth/bismuth oxide/sodium tantalate composite material and preparation method of hexavalent chromium waste water |
| CN114632507A (en) * | 2022-03-21 | 2022-06-17 | 广州大学 | Tantalum acid catalytic material and preparation method and application thereof |
| CN116713009A (en) * | 2023-06-06 | 2023-09-08 | 常州大学 | Preparation method and application of ZnCdS/NiO composite photocatalyst |
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2009
- 2009-07-21 CN CNA2009100168730A patent/CN101602002A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862650A (en) * | 2010-05-31 | 2010-10-20 | 青岛科技大学 | Method for preparing rare-earth doped and nickel oxide loaded nano sodium tantalate catalyst |
| CN102380408A (en) * | 2011-08-17 | 2012-03-21 | 青岛科技大学 | Method for preparing nanometer sodium metatantalate photocatalysts |
| CN102527372A (en) * | 2011-12-19 | 2012-07-04 | 陕西科技大学 | Method for hydrothermally preparing nitrogen-doped sodium tantalate photochemical catalyst powder |
| CN102553564A (en) * | 2011-12-19 | 2012-07-11 | 陕西科技大学 | Method for preparing nitrogen and fluorine doped sodium tantalum oxide photochemical catalyst powder by hydrothermal method |
| CN104211121A (en) * | 2014-09-05 | 2014-12-17 | 浙江大学 | Preparation method of water soluble sodium tantalate quantum dot with low cost |
| CN104211121B (en) * | 2014-09-05 | 2015-10-07 | 浙江大学 | The low cost preparation method of water-soluble sodium tantalate quantum dot |
| CN106902885A (en) * | 2017-03-29 | 2017-06-30 | 中国矿业大学 | Ion-exchange prepares metal ni-loaded catalyst method and catalyst and application |
| CN106902885B (en) * | 2017-03-29 | 2019-08-13 | 中国矿业大学 | Ion-exchange prepares metal ni-loaded catalyst method and catalyst and application |
| CN110433801A (en) * | 2019-07-30 | 2019-11-12 | 盐城工学院 | It is a kind of for handling bismuth/bismuth oxide/sodium tantalate composite material and preparation method of hexavalent chromium waste water |
| CN110433801B (en) * | 2019-07-30 | 2022-02-11 | 盐城工学院 | Bismuth/bismuth oxide/sodium tantalate composite material for treating hexavalent chromium ion wastewater and preparation method thereof |
| CN114632507A (en) * | 2022-03-21 | 2022-06-17 | 广州大学 | Tantalum acid catalytic material and preparation method and application thereof |
| CN114632507B (en) * | 2022-03-21 | 2023-10-20 | 广州大学 | Tantalic acid catalytic material and preparation method and application thereof |
| CN116713009A (en) * | 2023-06-06 | 2023-09-08 | 常州大学 | Preparation method and application of ZnCdS/NiO composite photocatalyst |
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