CN102294271B - Preparation method of synthetic resin loaded nanometer bismuth niobate photocatalyst - Google Patents
Preparation method of synthetic resin loaded nanometer bismuth niobate photocatalyst Download PDFInfo
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- CN102294271B CN102294271B CN2011101735675A CN201110173567A CN102294271B CN 102294271 B CN102294271 B CN 102294271B CN 2011101735675 A CN2011101735675 A CN 2011101735675A CN 201110173567 A CN201110173567 A CN 201110173567A CN 102294271 B CN102294271 B CN 102294271B
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- niobic acid
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- 229910052797 bismuth Inorganic materials 0.000 title claims abstract description 55
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 44
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000011941 photocatalyst Substances 0.000 title abstract 8
- 238000005303 weighing Methods 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 239000011259 mixed solution Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000001291 vacuum drying Methods 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 239000003054 catalyst Substances 0.000 claims description 44
- 239000002253 acid Substances 0.000 claims description 43
- 239000000243 solution Substances 0.000 claims description 25
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- YWYZEGXAUVWDED-UHFFFAOYSA-N triammonium citrate Chemical compound [NH4+].[NH4+].[NH4+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O YWYZEGXAUVWDED-UHFFFAOYSA-N 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 6
- 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 6
- 239000013049 sediment Substances 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 5
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 5
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000003760 magnetic stirring Methods 0.000 claims description 3
- 238000005201 scrubbing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000000967 suction filtration Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 8
- 229920005989 resin Polymers 0.000 abstract description 6
- 239000011347 resin Substances 0.000 abstract description 6
- 238000011068 loading method Methods 0.000 abstract 2
- 239000011363 dried mixture Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 230000015556 catabolic process Effects 0.000 description 11
- 238000006731 degradation reaction Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910001868 water Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- IPWKIXLWTCNBKN-UHFFFAOYSA-N Madelen Chemical compound CC1=NC=C([N+]([O-])=O)N1CC(O)CCl IPWKIXLWTCNBKN-UHFFFAOYSA-N 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229960002313 ornidazole Drugs 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000012490 blank solution Substances 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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Abstract
The invention discloses a preparation method of a synthetic resin loaded nanometer bismuth niobate photocatalyst. The preparation method comprises the following steps of 1, preparing a nanometer bismuth niobate photocatalyst, 2, weighing an appropriate amount of the prepared nanometer bismuth niobate photocatalyst and a synthetic resin LSA900C, wherein a mass ratio of the nanometer bismuth niobate photocatalyst to the synthetic resin LSA900C is controlled so that a resin load capacity is in a range of 5 to 25%, adding the nanometer bismuth niobate photocatalyst and the synthetic resin LSA900C into absolute ethanol, and putting the mixed solution into an ultrasonic cleaner for a full ultrasonic reaction, and 3, carrying out extraction filtration of the mixture obtained by the step 2, drying in air, putting the dried mixture into a vacuum drying oven to heat it to a temperature of 180 to 200 DEG C at a rate of 8 to 10 DEG C per minute, keeping warm for 0.5 to 1 hour, cooling in vacuum drying oven to obtain a desired product, and taking the desired product out. In the invention, the synthetic resin LSA900C is utilized for loading of a photocatalyst bismuth niobate for the first time. Compared with the prior art, the synthetic resin loaded nanometer bismuth niobate photocatalyst prepared by the preparation method has the advantages of high catalytic efficiency, high catalytic activity, strong loading soundness and long service life.
Description
Technical field
The invention belongs to the photochemical catalyst preparing technical field, be specifically related to a kind of preparation method of synthetic resin loaded with nano niobic acid bismuth photochemical catalyst.
Background technology
From TiO in 1972
2Be used to since the photodissociation water, the research and development conductor photocatalysis material is also used it for the degraded of organic pollution, is the heat subject of field of materials.This photocatalysis oxidation technique can change poisonous and hazardous organic pollution into carbon dioxide, water, inorganic ions or than the little material of former organic matter toxicity, have of low pollution or pollution-free, equipment is simple, advantage such as easy to operate, efficient.In the last thirty years, with TiO
2For representing traditional photochemical catalyst and with niobic acid silver (AgNbO
3), lead niobate (Pb
2Nb
2O
7), niobic acid indium (InNbO
4) and niobic acid bismuth (BiNbO
4) be the new catalyst of representative, wait to have obtained extensive and deep research.But what Most scholars adopted is the direct catalysis of powder, and this method difficult separation and recycling makes this technology be difficult to applied.Therefore, seek suitable carriers, realize the load of catalysis material, have great importance for extensive practicability of this technology and commercialization.
At present, bead, lamellar graphite, Ceramic Balls, extra large sand, natural minerals etc. are adopted in the load of photochemical catalyst more.These carriers can improve the catalytic effect of photochemical catalyst in various degree, but all have the problems such as characteristics that the carrier source is unstable, carrier lacks and be difficult to bring into play carrier self service life, are unfavorable for promoting the use of.
Synthetic resin is the synthetic high molecular polymer of one type of manual work; The resin of different model has different performances, and existing application more widely in fields such as food, biological medicine, chemical industry catalysis and water treatment is along with the development of synthetic resin industry; Many new type resins are by successfully exploitation; Like homemade LSA900C type synthetic resin, but less to the application technical research of these resins, restricted promoting the use of of these resins.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of synthetic resin loaded with nano niobic acid bismuth photochemical catalyst; First LSA900C type synthetic resin is used for the load of photochemical catalyst niobic acid bismuth; Compared with prior art, the synthetic resin loaded with nano niobic acid bismuth photochemical catalyst catalytic efficiency that makes is high, catalytic activity is big, the load fastness is strong and long service life.
The technical scheme that the present invention adopted is that a kind of preparation method of synthetic resin loaded with nano niobic acid bismuth photochemical catalyst may further comprise the steps:
Step 1a, to take by weighing mol ratio be 1: 2 niobium pentaoxide and bismuth and ammonium citrate;
Step 1b, niobium pentaoxide that step 1a is taken by weighing are fully dissolving in 48%～51% the hydrofluoric acid in concentration; With the mixed solution that obtains hydro-thermal reaction 3h～6h under 70 ℃～100 ℃ temperature; Naturally after the cooling, add concentration and be 28% ammoniacal liquor until separating out deposition, using concentration is this sediment of ammonia scrubbing of 5%～8%; Is fully dissolving in the citric acid solution of 0.2mol/L with this sediment after the washing in concentration, and gained solution is designated as A solution; The hydro-thermal reaction device therefor is for there being the teflon-lined autoclave;
Step 1c, bismuth and ammonium citrate that step 1a is taken by weighing are fully dissolving in the ammonium citrate solution of 0.2mol/L in concentration, and with the mixed solution magnetic agitation 1h～2h that obtains, gained solution is designated as B solution; The magnetic agitation device therefor is a magnetic stirring apparatus;
The B solution that step 1d, the A solution that step 1b is obtained and step 1c obtain mixes and stirs, and obtains spawn, oven dry, and under 200 ℃～600 ℃ temperature, calcining 8h～10h promptly gets nanometer niobic acid bismuth photochemical catalyst.
Step 2, take by weighing proper amount of nano niobic acid bismuth photochemical catalyst and LSA900C type synthetic resin; Controlling its both mass ratioes, to make resin-carried amount be 5%～25%; Both are positioned in the absolute ethyl alcohol with it; Ultrasonic reaction 30min～40min in supersonic wave cleaning machine fully reacts nanometer niobic acid bismuth photochemical catalyst and LSA900C type synthetic resin, obtains solidliquid mixture.
Step 3, with the solidliquid mixture suction filtration that step 2 obtains, behind air dry 12h～14h, place vacuum drying chamber to be warming up to 180 ℃～200 ℃ with the speed of 8 ℃～10 ℃/min; Insulation 0.5h～1h; With the stove cooling, take out, promptly get synthetic resin loaded with nano niobic acid bismuth photochemical catalyst.
The beneficial effect of the inventive method is: 1, method is easy and simple to handle, does not need special installation, and is with low cost, and repeatability is good, is fit to a large amount of preparations of industry.2, the synthetic resin loaded with nano niobic acid bismuth photochemical catalyst that makes through the inventive method can efficient catalytic degraded water body in organic pollution, its catalytic efficiency is high, catalytic activity is big, the load fastness is strong, long service life.The synthetic resin loaded with nano niobic acid bismuth photochemical catalyst that makes can swim in the water surface, has easily separatedly, easy and simple to handle, and advantage such as can be recycled.3, expanded the application of homemade novel synthetic resin LSA900C type synthetic resin.
Description of drawings
The X ray diffracting spectrum of the nanometer niobic acid bismuth photochemical catalyst that Fig. 1 makes for the inventive method;
Fig. 2 is the sem photograph of the employed LSA900C type of the inventive method synthetic resin;
Fig. 3 is the sem photograph of the synthetic resin loaded with nano niobic acid bismuth photochemical catalyst of the inventive method preparation;
Fig. 4 is the degradation curve figure of the synthetic resin loaded with nano niobic acid bismuth photochemical catalyst of the inventive method preparation.
The specific embodiment
Step 1a, take by weighing the niobium pentaoxide (Nb that quality is 1.0004g
2O
5), and quality is the bismuth and ammonium citrate (Bi (NH of 3.4017g
3)
2C
6H
7O
7H
2O), its both mol ratio is 1: 2.
Step 1b, niobium pentaoxide that step 1a is taken by weighing are fully dissolving in 48%～51% the hydrofluoric acid in 30mL～50mL and concentration; With the mixed solution that obtains in the teflon-lined autoclave is arranged; Hydro-thermal reaction 3h～6h under 70 ℃～100 ℃ temperature; Naturally after the cooling, add concentration and be 28% ammoniacal liquor until separating out deposition, using concentration is this sediment of ammonia scrubbing of 5%～8%; Is fully dissolving in the citric acid solution of 0.2mol/L with this sediment after the washing in concentration, and gained solution is designated as A solution;
Step 1c, bismuth and ammonium citrate that step 1a is taken by weighing are fully dissolving in the ammonium citrate solution of 0.2mol/L in concentration, and with the mixed solution that obtains magnetic agitation 1h～2h in magnetic stirring apparatus, gained solution is designated as B solution;
The B solution that step 1d, the A solution that step 1b is obtained and step 1c obtain mixes and stirs, and obtains spawn, and oven dry places Muffle furnace, and under 200 ℃～600 ℃ temperature, calcining 8h～10h promptly gets nanometer niobic acid bismuth photochemical catalyst.
As shown in Figure 1, lines 2 are the X ray diffracting spectrum of the nanometer niobic acid bismuth photochemical catalyst that makes in the present embodiment among the figure.
Step 2, taking by weighing the nanometer niobic acid bismuth photochemical catalyst that quality is 0.1g, is the LSA900C type synthetic resin of 0.4～2g with quality, and at this moment, resin-carried amount is 5%～25%; With claim nanometer niobic acid bismuth photochemical catalyst and LSA900C type synthetic resin be positioned in 20mL～80mL absolute ethyl alcohol; Nanometer niobic acid bismuth photochemical catalyst and LSA900C type synthetic resin are in anhydrous ethanol medium; Use supersonic wave cleaning machine ultrasonic reaction 30min～40min; Nanometer niobic acid bismuth photochemical catalyst and LSA900C type synthetic resin are fully reacted, obtain solidliquid mixture.
Step 3, with the solidliquid mixture suction filtration that step 2 obtains, behind air dry 12h～14h, place vacuum drying chamber to be warming up to 180 ℃～200 ℃ with the speed of 8 ℃～10 ℃/min; Insulation 0.5h～1h; With the stove cooling, take out, promptly get synthetic resin loaded with nano niobic acid bismuth photochemical catalyst.
Be illustrated in figure 2 as the sem photograph of the employed macroporous absorbent resin LSA900C of the inventive method type synthetic resin.Be illustrated in figure 3 as, the inventive method is utilized the sem photograph of the synthetic resin loaded with nano niobic acid bismuth photochemical catalyst of LSA900C type synthetic resin preparation.
Use the synthetic resin loaded with nano niobic acid bismuth photochemical catalyst of the inventive method preparation to carry out the photocatalytic degradation experiment.With the degradation model of Ornidazole as photocatalytic activity.Getting concentration is 10mgL
-1Ornidazole solution and 0.1g synthetic resin loaded with nano niobic acid bismuth photochemical catalyst together add reactor, light source is a 300W ultraviolet high-pressure sodium lamp.Before each illumination began, ultrasonic 30min reached the absorption-desorption balance earlier, and the sample that extracts a 0min then is as the reference of data afterwards.Open ultraviolet light source and begin illumination, lead to the cooling water and air in the experimentation, every separated 10min sampling once after loaded optic catalyst is removed in separation, is got its uv-visible absorption spectra of supernatant liquor test.The ratio of mother liquor peak value is exactly degradation rate when the absworption peak peak value of different time sampling and 0min.Result of the test is as shown in Figure 4.
Among Fig. 4, abscissa is a degradation time, and ordinate is a degradation rate, and line 1 is the Ornidazole blank solution, and line 2 is the degradation curve of niobic acid bismuth, and line 4 is the degradation curve of the synthetic resin loaded with nano niobic acid bismuth photochemical catalyst of present embodiment preparation.As can beappreciated from fig. 4, the degradation rate of the synthetic resin loaded with nano niobic acid bismuth photochemical catalyst of the inventive method preparation explains that greater than the degradation rate of niobic acid bismuth and Ornidazole blank solution its degradation effect is superior to directly using the degradation effect of nanometer niobic acid bismuth photochemical catalyst.
Claims (3)
1. the preparation method of a synthetic resin loaded with nano niobic acid bismuth photochemical catalyst is characterized in that, may further comprise the steps:
Step 1, preparation nanometer niobic acid bismuth photochemical catalyst:
Step 1a, to take by weighing mol ratio be 1: 2 niobium pentaoxide and bismuth and ammonium citrate;
Step 1b, niobium pentaoxide that step 1a is taken by weighing are fully dissolving in 48%～51% the hydrofluoric acid in concentration; With the mixed solution that obtains hydro-thermal reaction 3h～6h under 70 ℃～100 ℃ temperature; Naturally after the cooling, add concentration and be 28% ammoniacal liquor until separating out deposition, using concentration is this sediment of ammonia scrubbing of 5%～8%; Is fully dissolving in the citric acid solution of 0.2mol/L with this sediment after the washing in concentration, and gained solution is designated as A solution;
Step 1c, bismuth and ammonium citrate that step 1a is taken by weighing are fully dissolving in the ammonium citrate solution of 0.2mol/L in concentration, and with the mixed solution magnetic agitation 1h～2h that obtains, gained solution is designated as B solution;
The B solution that step 1d, the A solution that step 1b is obtained and step 1c obtain mixes and stirs, and obtains spawn, oven dry, and under 200 ℃～600 ℃ temperature, calcining 8h～10h promptly gets nanometer niobic acid bismuth photochemical catalyst;
Step 2, take by weighing proper amount of nano niobic acid bismuth photochemical catalyst and LSA900C type synthetic resin; Controlling its both mass ratioes, to make resin-carried amount be 5%～25%; Both are positioned in the absolute ethyl alcohol with it; Ultrasonic reaction 30min～40min in supersonic wave cleaning machine fully reacts nanometer niobic acid bismuth photochemical catalyst and LSA900C type synthetic resin, obtains solidliquid mixture;
Step 3, with the solidliquid mixture suction filtration that step 2 obtains, behind air dry 12h～14h, place vacuum drying chamber to be warming up to 180 ℃～200 ℃ with the speed of 8 ℃～10 ℃/min; Insulation 0.5h～1h; With the stove cooling, take out, promptly get synthetic resin loaded with nano niobic acid bismuth photochemical catalyst.
2. according to the preparation method of the said synthetic resin loaded with nano of claim 1 niobic acid bismuth photochemical catalyst, it is characterized in that among the said step 1b, said hydro-thermal reaction device therefor is for there being the teflon-lined autoclave.
3. according to the preparation method of the said synthetic resin loaded with nano of claim 1 niobic acid bismuth photochemical catalyst, it is characterized in that among the said step 1c, said magnetic agitation device therefor is a magnetic stirring apparatus.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362084A (en) * | 2008-09-18 | 2009-02-11 | 武汉理工大学 | Visible-light response nano Bi3NbO7 photocatalyst preparation method and use thereof |
| CN101716503A (en) * | 2009-11-23 | 2010-06-02 | 南京大学 | Visible light catalyst BiNbO4, preparation method thereof and application thereof |
| CN101884917A (en) * | 2010-06-29 | 2010-11-17 | 于建强 | Method for preparing composite fiber material for visible light photocatalytic degradation of organic pollutants |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362084A (en) * | 2008-09-18 | 2009-02-11 | 武汉理工大学 | Visible-light response nano Bi3NbO7 photocatalyst preparation method and use thereof |
| CN101716503A (en) * | 2009-11-23 | 2010-06-02 | 南京大学 | Visible light catalyst BiNbO4, preparation method thereof and application thereof |
| CN101884917A (en) * | 2010-06-29 | 2010-11-17 | 于建强 | Method for preparing composite fiber material for visible light photocatalytic degradation of organic pollutants |
Non-Patent Citations (4)
| Title |
|---|
| Gaoke Zhang et al..Preparation of nanosized Bi3NbO7 and its visible-light photocatalytic property.《Journal of Hazardous Materials》.2009,第172卷第987页第2节. |
| Lu Wang et al..Visible light responsive bismuth niobate photocatalyst: enhanced contaminant degradation and hydrogen generation.《Journal of Materials Chemistry》.2010,第20卷第8406页实验部分. |
| Preparation of nanosized Bi3NbO7 and its visible-light photocatalytic property;Gaoke Zhang et al.;《Journal of Hazardous Materials》;20090729;第172卷;第987页第2节 * |
| Visible light responsive bismuth niobate photocatalyst: enhanced contaminant degradation and hydrogen generation;Lu Wang et al.;《Journal of Materials Chemistry》;20101231;第20卷;第8406页实验部分 * |
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