CN105195198A - Mpg-C3N4/Bi0.9Nd0.1VO4 composite photocatalyst and preparation method and application thereof - Google Patents
Mpg-C3N4/Bi0.9Nd0.1VO4 composite photocatalyst and preparation method and application thereof Download PDFInfo
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- CN105195198A CN105195198A CN201510633823.2A CN201510633823A CN105195198A CN 105195198 A CN105195198 A CN 105195198A CN 201510633823 A CN201510633823 A CN 201510633823A CN 105195198 A CN105195198 A CN 105195198A
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- 239000002131 composite material Substances 0.000 title claims abstract description 65
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 105
- 239000000843 powder Substances 0.000 claims abstract description 45
- 238000006243 chemical reaction Methods 0.000 claims abstract description 42
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 40
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000002243 precursor Substances 0.000 claims abstract description 29
- 239000007864 aqueous solution Substances 0.000 claims description 45
- 238000003756 stirring Methods 0.000 claims description 44
- 238000009413 insulation Methods 0.000 claims description 34
- 239000000203 mixture Substances 0.000 claims description 31
- 229910052797 bismuth Inorganic materials 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 21
- 238000009938 salting Methods 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 20
- 238000010792 warming Methods 0.000 claims description 20
- 238000006731 degradation reaction Methods 0.000 claims description 13
- 230000015556 catabolic process Effects 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 11
- 229910052779 Neodymium Inorganic materials 0.000 claims description 10
- 229920000877 Melamine resin Polymers 0.000 claims description 9
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 9
- 239000013049 sediment Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 6
- 239000013335 mesoporous material Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 230000001699 photocatalysis Effects 0.000 abstract description 9
- 239000003054 catalyst Substances 0.000 abstract description 6
- 230000035484 reaction time Effects 0.000 abstract description 3
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 abstract description 2
- 229910002915 BiVO4 Inorganic materials 0.000 abstract 1
- FBXVOTBTGXARNA-UHFFFAOYSA-N bismuth;trinitrate;pentahydrate Chemical compound O.O.O.O.O.[Bi+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FBXVOTBTGXARNA-UHFFFAOYSA-N 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- VQVDTKCSDUNYBO-UHFFFAOYSA-N neodymium(3+);trinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Nd+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VQVDTKCSDUNYBO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 description 22
- 239000008367 deionised water Substances 0.000 description 21
- 229910021641 deionized water Inorganic materials 0.000 description 21
- 238000003760 magnetic stirring Methods 0.000 description 14
- 235000019441 ethanol Nutrition 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000013019 agitation Methods 0.000 description 7
- 238000011068 loading method Methods 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 238000007146 photocatalysis Methods 0.000 description 7
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 7
- 229940043267 rhodamine b Drugs 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000445 field-emission scanning electron microscopy Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000000593 degrading effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000356 contaminant 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
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- CFYGEIAZMVFFDE-UHFFFAOYSA-N neodymium(3+);trinitrate Chemical compound [Nd+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O CFYGEIAZMVFFDE-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention discloses an mpg-C3N4/Bi0.9Nd0.1VO4 composite photocatalyst and a preparation method and application thereof. Mpg-C3N4 powder is prepared, ethanol dispersion solution of mpg-C3N4 is then added into ammonium metavanadate solution to obtain a liquid A, neodymium nitrate hexahydrate is added into bismuth nitrate pentahydrate solution to obtain a liquid B, the liquid A is then added into the liquid B to obtain a reaction precursor solution, and the reaction precursor solution is prepared by a microwave hydrothermal method into the mpg-C3N4/Bi0.9Nd0.1VO4 composite photocatalyst. The mpg-C3N4/Bi0.9Nd0.1VO4 composite photocatalyst is synthesized in one step, a synthetic flow is simple, operating is simple, reaction time is short, reaction conditions are mild, the synthesized mpg-C3N4/Bi0.9Nd0.1VO4 composite photocatalyst has various shapes and high photocatalytic activity, and catalytic efficiency of pure-phase BiVO4 is substantially improved; this catalyst has a promising application prospect.
Description
Technical field
The invention belongs to field of functional materials, be specifically related to a kind of mpg-C
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst and its preparation method and application.
Background technology
At present, water pollution is more and more serious, has arrived the stage threatening human society existence.Conventional water treatment method, such as biochemical process, absorption method and coagulation sedimentation etc., although organic pollution partly can be removed, for the organic matter of difficult degradation, effect non-constant, and usually can cause secondary pollution.Compare these methods, organic matter can be thoroughly degraded into nontoxic inorganic molecules, excellent effect by Photocatalitic Technique of Semiconductor, and is that driving force is with low cost with sunshine, have obvious advantage, therefore conductor photocatalysis is the very potential sewage disposal technology of one.
BiVO
4cause the broad interest of people as a kind of novel visible light catalyst, many researchers are applied to degradable organic pollutant, to reach the object of curbing environmental pollution.Large quantity research shows, the crystal structure of the photocatalysis performance of photochemical catalyst and material self, specific area, crystallite dimension and granule-morphology etc. have much relations.The good BiVO of controlled formation pattern
4powder will be conducive to BiVO
4the raising of photocatalytic activity.
Meanwhile, graphite phase carbon nitride (mpg-C
3n
4) can water-splitting hydrogen production under visible light illumination, cause the very big concern of whole world photocatalysis researchers, mpg-C
3n
4also a kind of active material of photocatalysis field is become rapidly.
Up to now, mpg-C is prepared
3n
4/ Bi
0.9nd
0.1vO
4there is not been reported in the work of composite photo-catalyst, also do not have patent and bibliographical information to cross preparation mpg-C
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst.
Summary of the invention
The object of the present invention is to provide a kind of mpg-C
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst and its preparation method and application, the method is simple to operate, and the reaction time is short, and reaction condition is gentle, the mpg-C of preparation
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst has higher degrading activity under simulated solar irradiation, substantially increases pure phase BiVO
4photocatalysis efficiency.
For achieving the above object, the technical solution used in the present invention is:
A kind of mpg-C
3n
4/ Bi
0.9nd
0.1vO
4the preparation method of composite photo-catalyst, comprises the following steps:
Step 1: be the melamine aqueous solution and the concentration of 2.1 ~ 2.15mol/L by concentration be the Nano-meter SiO_2 of 0.8 ~ 0.85mol/L
2the aqueous solution mixes for 3:2 by volume, stirs after ultrasonic disperse again, then dries, and obtains white solid, loads in crucible, at N by after white solid porphyrize
2be warming up to 540 ~ 560 DEG C of calcining 4h in atmosphere furnace, obtain pale yellow powder, then use NH
4hF
2aqueous corrosion pale yellow powder, removing SiO wherein
2template, finally washing, drying, obtain mpg-C
3n
4powder;
Step 2: by mpg-C
3n
4it is even that powder joins ultrasonic disperse in ethanol, obtains mpg-C
3n
4alcoholic solution, then by mpg-C
3n
4alcoholic solution joins NH
4vO
3the aqueous solution in, stir, obtain A liquid; Mpg-C in A liquid
3n
4be (0.25 ~ 1) with the mol ratio of V: 1;
Step 3: by Bi (NO
3)
35H
2o is added to the water, and stirs, and obtains bismuth salting liquid, by Nd (NO
3)
36H
2o joins in bismuth salting liquid, stirs, and obtains B liquid; In B liquid, the mol ratio of Nd and Bi is 1:9;
Step 4: added in B liquid by A liquid, stir, obtains reaction precursor liquid; In reaction precursor liquid, (Bi+Nd) is 1:1 with the mol ratio of V;
Step 5: reaction precursor liquid is added in microwave hydrothermal reaction kettle, microwave hydrothermal reaction kettle is placed in microwave assisted hydrothermal synthesis apparatus, setting pressure is 1.2MPa, under the microwave power of 300W, from room temperature to 95 ~ 105 DEG C, insulation 7 ~ 9min; Then continue to be warming up to 145 ~ 155 DEG C, insulation 7 ~ 9min; Continue again to be warming up to 175 ~ 185 DEG C, after insulation 35 ~ 45min, terminate reaction;
Step 6: be cooled to room temperature after question response terminates, then takes out the sediment in microwave hydrothermal reaction kettle, and washing, drying, obtain mpg-C
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst.
In described step 1, the time of ultrasonic disperse is 55 ~ 65min;
The time that in described step 2, ultrasonic disperse is evenly required is 1 ~ 2h.
Bake out temperature in described step 1 is 75 ~ 85 DEG C;
Programming rate in described step 1 is 2 ~ 3 DEG C/min.
Described NH
4hF
2the concentration of the aqueous solution is 3.5 ~ 4.5mol/L.
Described NH
4vO
3the aqueous solution in NH
4vO
3concentration be 0.3 ~ 0.4mol/L;
Bi (NO in described bismuth salting liquid
3)
35H
2the concentration of O is 0.3 ~ 0.4mol/L.
Required time that stirs in described step 2 is 25 ~ 35min;
Required time that stirs in described step 3 is 20 ~ 35min.
Required time that stirs in described step 4 is 35 ~ 45min.
Drying in described step 6 is dry 10 ~ 12h at 75 ~ 85 DEG C.
Mpg-C
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst, this composite photo-catalyst is by mpg-C
3n
4and Bi
0.9nd
0.1vO
4composition, wherein mpg-C
3n
4with Bi
0.9nd
0.1vO
4mol ratio be (0.25 ~ 1): 1, mpg-C
3n
4for mesoporous material, its aperture is 3 ~ 65nm.
Mpg-C
3n
4/ Bi
0.9nd
0.1vO
4the application of composite photo-catalyst in degradation of organic substances.
Relative to prior art, beneficial effect of the present invention is:
Mpg-C provided by the invention
3n
4/ Bi
0.9nd
0.1vO
4the preparation method of composite photo-catalyst, with five water bismuth nitrate (Bi (NO
3)
35H
2o) be bismuth source, ammonium metavanadate (NH
4vO
3) be vanadium source, six water neodymium nitrate (Nd (NO
3)
36H
2o) be neodymium source, with mesoporous carbonitride (mpg-C
3n
4) be composite semiconductor, successfully prepare mpg-C by microwave-hydrothermal method one step
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst.The present invention is by the mpg-C of different mol ratio
3n
4compound Bi
0.9nd
0.1vO
4catalyst, has prepared the mpg-C of multiform looks
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst, improves pure phase BiVO
4the efficiency of photocatalysis to degrade organic matter.The present invention adopts microwave-hydrothermal method one-step synthesis mpg-C
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst, the method combines the advantage of heating using microwave and hydro-thermal method, and its flow process is simple and easy, simple to operate, and the reaction time is short, and reaction condition is gentle, the mpg-C of synthesis
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst pattern is various, and has high photocatalytic activity, reaches BiVO
4carry out the object of semiconductors coupling modification, have a good application prospect.
The mpg-C that the present invention obtains
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst is by mpg-C
3n
4and Bi
0.9nd
0.1vO
4composition, wherein mpg-C
3n
4for mesoporous material, its aperture is 3 ~ 65nm.The mpg-C that the present invention obtains
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst has excellent photocatalysis performance, can be used in degradation of organic substances and environmental contaminants, is with a wide range of applications.
Accompanying drawing explanation
Fig. 1 is mpg-C prepared by the present invention
3n
4/ Bi
0.9nd
0.1vO
4the FE-SEM figure of composite photo-catalyst, wherein a ~ c is respectively mpg-C prepared by embodiment 1 ~ embodiment 3
3n
4/ Bi
0.9nd
0.1vO
4the FE-SEM figure of composite photo-catalyst.
Fig. 2 is mpg-C prepared by the present invention
3n
4/ Bi
0.9nd
0.1vO
4the XRD collection of illustrative plates of composite photo-catalyst, wherein a ~ c is respectively mpg-C prepared by embodiment 1 ~ embodiment 3
3n
4/ Bi
0.9nd
0.1vO
4the XRD collection of illustrative plates of composite photo-catalyst.
Fig. 3 is mpg-C prepared by the present invention
3n
4/ Bi
0.9nd
0.1vO
4degradation rate-the time graph of the rhodamine B degradation of composite photo-catalyst, wherein a ~ c is respectively mpg-C prepared by embodiment 1 ~ embodiment 3
3n
4/ Bi
0.9nd
0.1vO
4the degradation curve of composite photo-catalyst.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the present invention is described in further detail.
Embodiment 1:
Step 1: be the melamine aqueous solution and the concentration of 2.12mol/L by concentration be the Nano-meter SiO_2 of 0.83mol/L
2the aqueous solution is 3:2 mixing and stirring by volume, ultrasonic disperse 1h, then the baking oven putting into 80 DEG C after stirring is dried, and obtains white solid, is ground in thin rear loading crucible, at N
2rise to 550 DEG C of insulation 4h with the programming rate of 2.5 DEG C/min in atmosphere furnace to calcine, obtain pale yellow powder, then use the NH of 4mol/L
4hF
2the aqueous solution corrodes, the SiO in removing pale yellow powder
2template, finally carries out washing dry, obtains mpg-C
3n
4powder;
Step 2: by mpg-C
3n
4powder is added in 5mL ethanol, and ultrasonic disperse 2h, obtains mpg-C
3n
4alcoholic solution; By NH
4vO
3be dissolved in the deionized water of 90 DEG C, at 100 DEG C, add thermal agitation 20min, obtain NH
4vO
3concentration is the NH of 0.3mol/L
4vO
3the aqueous solution; Again by mpg-C
3n
4alcoholic solution joins NH
4vO
3the aqueous solution in, mix and blend 30min, obtains A liquid; Mpg-C in A liquid
3n
4be 0.25:1 with the mol ratio of V;
Step 3: by Bi (NO
3)
35H
2o is dissolved in deionized water, and magnetic stirring apparatus stirs 20min, obtains Bi (NO
3)
35H
2o concentration is the bismuth salting liquid of 0.3mol/L, then by Nd (NO
3)
36H
2o joins in bismuth salting liquid, and magnetic stirring apparatus stirs 30min, obtains B liquid, and in B liquid, the mol ratio of Nd and Bi is 1:9;
Step 4: A liquid is slowly added in B liquid, mix and blend 40min, obtain reaction precursor liquid, in reaction precursor liquid, (Bi+Nd) is 1:1 with the mol ratio of V;
Step 5: reaction precursor liquid is added in microwave hydrothermal reaction kettle, microwave hydrothermal reaction kettle is placed in microwave assisted hydrothermal synthesis apparatus, setting pressure is 1.2MPa, under the microwave power of 300W, from room temperature to 100 DEG C, at 100 DEG C of insulation 8min; Then 150 DEG C are warming up to from 100 DEG C, at 150 DEG C of insulation 8min; Be warming up to 180 DEG C from 150 DEG C again, after 180 DEG C of insulation 40min, terminate reaction;
Step 6: after question response terminates, is cooled to room temperature, and take out the sediment in microwave hydrothermal reaction kettle, respectively wash three times with deionized water and absolute ethyl alcohol, finally freeze-day with constant temperature 12h at 80 DEG C, obtains mpg-C
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst.
Embodiment 2:
Step 1: be the melamine aqueous solution and the concentration of 2.12mol/L by concentration be the Nano-meter SiO_2 of 0.83mol/L
2the aqueous solution is 3:2 mixing and stirring by volume, ultrasonic disperse 1h, then the baking oven putting into 80 DEG C after stirring is dried, and obtains white solid, is ground in thin rear loading crucible, at N
2rise to 550 DEG C of insulation 4h with the programming rate of 2.5 DEG C/min in atmosphere furnace to calcine, obtain pale yellow powder, then use the NH of 4mol/L
4hF
2the aqueous solution corrodes, the SiO in removing pale yellow powder
2template, finally carries out washing dry, obtains mpg-C
3n
4powder;
Step 2: by mpg-C
3n
4powder is added in 5mL ethanol, and ultrasonic disperse 2h, obtains mpg-C
3n
4alcoholic solution; By NH
4vO
3be dissolved in the deionized water of 90 DEG C, at 100 DEG C, add thermal agitation 20min, obtain NH
4vO
3concentration is the NH of 0.3mol/L
4vO
3the aqueous solution; Again by mpg-C
3n
4alcoholic solution joins NH
4vO
3the aqueous solution in, mix and blend 30min, obtains A liquid; Mpg-C in A liquid
3n
4be 0.5:1 with the mol ratio of V;
Step 3: by Bi (NO
3)
35H
2o is dissolved in deionized water, and magnetic stirring apparatus stirs 20min, obtains Bi (NO
3)
35H
2o concentration is the bismuth salting liquid of 0.3mol/L, then by Nd (NO
3)
36H
2o joins in bismuth salting liquid, and magnetic stirring apparatus stirs 30min, obtains B liquid, and in B liquid, the mol ratio of Nd and Bi is 1:9;
Step 4: A liquid is slowly added in B liquid, mix and blend 40min, obtain reaction precursor liquid, in reaction precursor liquid, (Bi+Nd) is 1:1 with the mol ratio of V;
Step 5: reaction precursor liquid is added in microwave hydrothermal reaction kettle, microwave hydrothermal reaction kettle is placed in microwave assisted hydrothermal synthesis apparatus, setting pressure is 1.2MPa, under the microwave power of 300W, from room temperature to 100 DEG C, at 100 DEG C of insulation 8min; Then 150 DEG C are warming up to from 100 DEG C, at 150 DEG C of insulation 8min; Be warming up to 180 DEG C from 150 DEG C again, after 180 DEG C of insulation 40min, terminate reaction;
Step 6: after question response terminates, is cooled to room temperature, and take out the sediment in microwave hydrothermal reaction kettle, respectively wash three times with deionized water and absolute ethyl alcohol, finally freeze-day with constant temperature 12h at 80 DEG C, obtains mpg-C
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst.
Embodiment 3:
Step 1: be the melamine aqueous solution and the concentration of 2.12mol/L by concentration be the Nano-meter SiO_2 of 0.83mol/L
2the aqueous solution is 3:2 mixing and stirring by volume, ultrasonic disperse 1h, then the baking oven putting into 80 DEG C after stirring is dried, and obtains white solid, is ground in thin rear loading crucible, at N
2rise to 550 DEG C of insulation 4h with the programming rate of 2.5 DEG C/min in atmosphere furnace to calcine, obtain pale yellow powder, then use the NH of 4mol/L
4hF
2the aqueous solution corrodes, the SiO in removing pale yellow powder
2template, finally carries out washing dry, obtains mpg-C
3n
4powder;
Step 2: by mpg-C
3n
4powder is added in 5mL ethanol, and ultrasonic disperse 2h, obtains mpg-C
3n
4alcoholic solution; By NH
4vO
3be dissolved in the deionized water of 90 DEG C, at 100 DEG C, add thermal agitation 20min, obtain NH
4vO
3concentration is the NH of 0.3mol/L
4vO
3the aqueous solution; Again by mpg-C
3n
4alcoholic solution joins NH
4vO
3the aqueous solution in, mix and blend 30min, obtains A liquid; Mpg-C in A liquid
3n
4be 1:1 with the mol ratio of V;
Step 3: by Bi (NO
3)
35H
2o is dissolved in deionized water, and magnetic stirring apparatus stirs 20min, obtains Bi (NO
3)
35H
2o concentration is the bismuth salting liquid of 0.3mol/L, then by Nd (NO
3)
36H
2o joins in bismuth salting liquid, and magnetic stirring apparatus stirs 30min, obtains B liquid, and in B liquid, the mol ratio of Nd and Bi is 1:9;
Step 4: A liquid is slowly added in B liquid, mix and blend 40min, obtain reaction precursor liquid, in reaction precursor liquid, (Bi+Nd) is 1:1 with the mol ratio of V;
Step 5: reaction precursor liquid is added in microwave hydrothermal reaction kettle, microwave hydrothermal reaction kettle is placed in microwave assisted hydrothermal synthesis apparatus, setting pressure is 1.2MPa, under the microwave power of 300W, from room temperature to 100 DEG C, at 100 DEG C of insulation 8min; Then 150 DEG C are warming up to from 100 DEG C, at 150 DEG C of insulation 8min; Be warming up to 180 DEG C from 150 DEG C again, after 180 DEG C of insulation 40min, terminate reaction;
Step 6: after question response terminates, is cooled to room temperature, and take out the sediment in microwave hydrothermal reaction kettle, respectively wash three times with deionized water and absolute ethyl alcohol, finally freeze-day with constant temperature 12h at 80 DEG C, obtains mpg-C
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst.
Embodiment 4
Step 1: be the melamine aqueous solution and the concentration of 2.1mol/L by concentration be the Nano-meter SiO_2 of 0.8mol/L
2the aqueous solution is 3:2 mixing and stirring by volume, ultrasonic disperse 55min, then the baking oven putting into 75 DEG C after stirring is dried, and obtains white solid, is ground in thin rear loading crucible, at N
2rise to 540 DEG C of insulation 4h with the programming rate of 2 DEG C/min in atmosphere furnace to calcine, obtain pale yellow powder, then use the NH of 3.5mol/L
4hF
2the aqueous solution corrodes, the SiO in removing pale yellow powder
2template, finally carries out washing dry, obtains mpg-C
3n
4powder;
Step 2: by mpg-C
3n
4powder is added in 5mL ethanol, and ultrasonic disperse 1h, obtains mpg-C
3n
4alcoholic solution; By NH
4vO
3be dissolved in the deionized water of 90 DEG C, at 100 DEG C, add thermal agitation 20min, obtain NH
4vO
3concentration is the NH of 0.32mol/L
4vO
3the aqueous solution; Again by mpg-C
3n
4alcoholic solution joins NH
4vO
3the aqueous solution in, mix and blend 25min, obtains A liquid; Mpg-C in A liquid
3n
4be 0.4:1 with the mol ratio of V;
Step 3: by Bi (NO
3)
35H
2o is dissolved in deionized water, and magnetic stirring apparatus stirs 25min, obtains Bi (NO
3)
35H
2o concentration is the bismuth salting liquid of 0.32mol/L, then by Nd (NO
3)
36H
2o joins in bismuth salting liquid, and magnetic stirring apparatus stirs 25min, obtains B liquid, and in B liquid, the mol ratio of Nd and Bi is 1:9;
Step 4: A liquid is slowly added in B liquid, mix and blend 35min, obtain reaction precursor liquid, in reaction precursor liquid, (Bi+Nd) is 1:1 with the mol ratio of V;
Step 5: reaction precursor liquid is added in microwave hydrothermal reaction kettle, microwave hydrothermal reaction kettle is placed in microwave assisted hydrothermal synthesis apparatus, setting pressure is 1.2MPa, under the microwave power of 300W, from room temperature to 95 DEG C, at 95 DEG C of insulation 9min; Then 145 DEG C are warming up to from 95 DEG C, at 145 DEG C of insulation 9min; Be warming up to 175 DEG C from 145 DEG C again, after 175 DEG C of insulation 45min, terminate reaction;
Step 6: after question response terminates, is cooled to room temperature, and take out the sediment in microwave hydrothermal reaction kettle, respectively wash three times with deionized water and absolute ethyl alcohol, finally freeze-day with constant temperature 11.5h at 75 DEG C, obtains mpg-C
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst.
Embodiment 5
Step 1: be the melamine aqueous solution and the concentration of 2.15mol/L by concentration be the Nano-meter SiO_2 of 0.85mol/L
2the aqueous solution is 3:2 mixing and stirring by volume, ultrasonic disperse 65min, then the baking oven putting into 85 DEG C after stirring is dried, and obtains white solid, is ground in thin rear loading crucible, at N
2rise to 560 DEG C of insulation 4h with the programming rate of 3 DEG C/min in atmosphere furnace to calcine, obtain pale yellow powder, then use the NH of 4.5mol/L
4hF
2the aqueous solution corrodes, the SiO in removing pale yellow powder
2template, finally carries out washing dry, obtains mpg-C
3n
4powder;
Step 2: by mpg-C
3n
4powder is added in 5mL ethanol, and ultrasonic disperse 1.2h, obtains mpg-C
3n
4alcoholic solution; By NH
4vO
3be dissolved in the deionized water of 90 DEG C, at 100 DEG C, add thermal agitation 20min, obtain NH
4vO
3concentration is the NH of 0.35mol/L
4vO
3the aqueous solution; Again by mpg-C
3n
4alcoholic solution joins NH
4vO
3the aqueous solution in, mix and blend 35min, obtains A liquid; Mpg-C in A liquid
3n
4be 0.7:1 with the mol ratio of V;
Step 3: by Bi (NO
3)
35H
2o is dissolved in deionized water, and magnetic stirring apparatus stirs 30min, obtains Bi (NO
3)
35H
2o concentration is the bismuth salting liquid of 0.35mol/L, then by Nd (NO
3)
36H
2o joins in bismuth salting liquid, and magnetic stirring apparatus stirs 35min, obtains B liquid, and in B liquid, the mol ratio of Nd and Bi is 1:9;
Step 4: A liquid is slowly added in B liquid, mix and blend 45min, obtain reaction precursor liquid, in reaction precursor liquid, (Bi+Nd) is 1:1 with the mol ratio of V;
Step 5: reaction precursor liquid is added in microwave hydrothermal reaction kettle, microwave hydrothermal reaction kettle is placed in microwave assisted hydrothermal synthesis apparatus, setting pressure is 1.2MPa, under the microwave power of 300W, from room temperature to 105 DEG C, at 105 DEG C of insulation 7min; Then 155 DEG C are warming up to from 105 DEG C, at 155 DEG C of insulation 7min; Be warming up to 185 DEG C from 155 DEG C again, after 185 DEG C of insulation 35min, terminate reaction;
Step 6: after question response terminates, is cooled to room temperature, and take out the sediment in microwave hydrothermal reaction kettle, respectively wash three times with deionized water and absolute ethyl alcohol, finally freeze-day with constant temperature 10h at 85 DEG C, obtains mpg-C
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst.
Embodiment 6
Step 1: be the melamine aqueous solution and the concentration of 2.11mol/L by concentration be the Nano-meter SiO_2 of 0.82mol/L
2the aqueous solution is 3:2 mixing and stirring by volume, ultrasonic disperse 58min, then the baking oven putting into 78 DEG C after stirring is dried, and obtains white solid, is ground in thin rear loading crucible, at N
2rise to 545 DEG C of insulation 4h with the programming rate of 2.2 DEG C/min in atmosphere furnace to calcine, obtain pale yellow powder, then use the NH of 3.8mol/L
4hF
2the aqueous solution corrodes, the SiO in removing pale yellow powder
2template, finally carries out washing dry, obtains mpg-C
3n
4powder;
Step 2: by mpg-C
3n
4powder is added in 5mL ethanol, and ultrasonic disperse 1.5h, obtains mpg-C
3n
4alcoholic solution; By NH
4vO
3be dissolved in the deionized water of 90 DEG C, at 100 DEG C, add thermal agitation 20min, obtain NH
4vO
3concentration is the NH of 0.38mol/L
4vO
3the aqueous solution; Again by mpg-C
3n
4alcoholic solution joins NH
4vO
3the aqueous solution in, mix and blend 28min, obtains A liquid; Mpg-C in A liquid
3n
4be 0.85:1 with the mol ratio of V;
Step 3: by Bi (NO
3)
35H
2o is dissolved in deionized water, and magnetic stirring apparatus stirs 35min, obtains Bi (NO
3)
35H
2o concentration is the bismuth salting liquid of 0.38mol/L, then by Nd (NO
3)
36H
2o joins in bismuth salting liquid, and magnetic stirring apparatus stirs 20min, obtains B liquid, and in B liquid, the mol ratio of Nd and Bi is 1:9;
Step 4: A liquid is slowly added in B liquid, mix and blend 38min, obtain reaction precursor liquid, in reaction precursor liquid, (Bi+Nd) is 1:1 with the mol ratio of V;
Step 5: reaction precursor liquid is added in microwave hydrothermal reaction kettle, microwave hydrothermal reaction kettle is placed in microwave assisted hydrothermal synthesis apparatus, setting pressure is 1.2MPa, under the microwave power of 300W, from room temperature to 98 DEG C, at 98 DEG C of insulation 8.5min; Then 148 DEG C are warming up to from 98 DEG C, at 148 DEG C of insulation 8.5min; Be warming up to 178 DEG C from 148 DEG C again, after 178 DEG C of insulation 42min, terminate reaction;
Step 6: after question response terminates, is cooled to room temperature, and take out the sediment in microwave hydrothermal reaction kettle, respectively wash three times with deionized water and absolute ethyl alcohol, finally freeze-day with constant temperature 11h at 78 DEG C, obtains mpg-C
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst.
Embodiment 7
Step 1: be the melamine aqueous solution and the concentration of 2.13mol/L by concentration be the Nano-meter SiO_2 of 0.84mol/L
2the aqueous solution is 3:2 mixing and stirring by volume, ultrasonic disperse 62min, then the baking oven putting into 82 DEG C after stirring is dried, and obtains white solid, is ground in thin rear loading crucible, at N
2rise to 555 DEG C of insulation 4h with the programming rate of 2.8 DEG C/min in atmosphere furnace to calcine, obtain pale yellow powder, then use the NH of 4.2mol/L
4hF
2the aqueous solution corrodes, the SiO in removing pale yellow powder
2template, finally carries out washing dry, obtains mpg-C
3n
4powder;
Step 2: by mpg-C
3n
4powder is added in 5mL ethanol, and ultrasonic disperse 1.8h, obtains mpg-C
3n
4alcoholic solution; By NH
4vO
3be dissolved in the deionized water of 90 DEG C, at 100 DEG C, add thermal agitation 20min, obtain NH
4vO
3concentration is the NH of 0.4mol/L
4vO
3the aqueous solution; Again by mpg-C
3n
4alcoholic solution joins NH
4vO
3the aqueous solution in, mix and blend 32min, obtains A liquid; Mpg-C in A liquid
3n
4be 0.6:1 with the mol ratio of V;
Step 3: by Bi (NO
3)
35H
2o is dissolved in deionized water, and magnetic stirring apparatus stirs 22min, obtains Bi (NO
3)
35H
2o concentration is the bismuth salting liquid of 0.4mol/L, then by Nd (NO
3)
36H
2o joins in bismuth salting liquid, and magnetic stirring apparatus stirs 28min, obtains B liquid, and in B liquid, the mol ratio of Nd and Bi is 1:9;
Step 4: A liquid is slowly added in B liquid, mix and blend 42min, obtain reaction precursor liquid, in reaction precursor liquid, (Bi+Nd) is 1:1 with the mol ratio of V;
Step 5: reaction precursor liquid is added in microwave hydrothermal reaction kettle, microwave hydrothermal reaction kettle is placed in microwave assisted hydrothermal synthesis apparatus, setting pressure is 1.2MPa, under the microwave power of 300W, from room temperature to 102 DEG C, at 102 DEG C of insulation 7.5min; Then 152 DEG C are warming up to from 102 DEG C, at 152 DEG C of insulation 7.5min; Be warming up to 182 DEG C from 152 DEG C again, after 182 DEG C of insulation 38min, terminate reaction;
Step 6: after question response terminates, is cooled to room temperature, and take out the sediment in microwave hydrothermal reaction kettle, respectively wash three times with deionized water and absolute ethyl alcohol, finally freeze-day with constant temperature 10.5h at 82 DEG C, obtains mpg-C
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst.
Fig. 1 is mpg-C prepared by the present invention
3n
4/ Bi
0.9nd
0.1vO
4the FE-SEM figure of composite photo-catalyst, wherein a ~ c is respectively mpg-C prepared by embodiment 1 ~ embodiment 3
3n
4/ Bi
0.9nd
0.1vO
4the FE-SEM figure of composite photo-catalyst.See from figure, mpg-C prepared by embodiment 1
3n
4/ Bi
0.9nd
0.1vO
4the pattern of composite photo-catalyst is that regular decahedron and part granule are attached to its surface; Mpg-C prepared by embodiment 2
3n
4/ Bi
0.9nd
0.1vO
4spheroid uneven sized by the pattern of composite photo-catalyst; Mpg-C prepared by embodiment 3
3n
4/ Bi
0.9nd
0.1vO
4the pattern of composite photo-catalyst is sheet and portion envelops spherical particle, and this illustrates the mpg-C of different mol ratio example
3n
4the mpg-C be compounded to form
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst has different morphologies.
Fig. 2 is mpg-C prepared by the present invention
3n
4/ Bi
0.9nd
0.1vO
4the XRD collection of illustrative plates of composite photo-catalyst, wherein a ~ c is respectively mpg-C prepared by embodiment 1 ~ embodiment 3
3n
4/ Bi
0.9nd
0.1vO
4the XRD collection of illustrative plates of composite photo-catalyst, " mpg-C
3n
4" be the obtained mpg-C of the step 1 of embodiment 1
3n
4the XRD collection of illustrative plates of powder, " Bi
0.9nd
0.1vO
4" for not add mpg-C according to the step of embodiment 1
3n
4bi obtained during powder
0.9nd
0.1vO
4the XRD collection of illustrative plates of powder.See from figure, obtained mpg-C
3n
4powder has two obvious absworption peaks at 13 ° and 27 ° of places, can be indexed as class graphitic nitralloy material with carbon element, illustrate and successfully prepare carbon nitride material; Bi
0.9nd
0.1vO
4the crystal structure of powder is pure cubic zircon phase.Mpg-C prepared by embodiment 1
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst is monocline-cubic mixed phase BiVO
4; Mpg-C prepared by embodiment 2
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst is pure monoclinic phase; Mpg-C prepared by embodiment 3
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst is monocline-cubic mixed phase BiVO
4, the mpg-C of visible different mol ratio
3n
4/ Bi
0.9nd
0.1vO
4the crystal structure of composite photo-catalyst is also different.
Fig. 3 is mpg-C prepared by the present invention
3n
4/ Bi
0.9nd
0.1vO
4degradation rate-the time graph of the rhodamine B degradation of composite photo-catalyst, wherein a ~ c is respectively mpg-C prepared by embodiment 1 ~ embodiment 3
3n
4/ Bi
0.9nd
0.1vO
4the degradation curve of composite photo-catalyst, RhB is the degradation curve that when not adding catalyst, rhodamine B is spontaneous, " Bi
0.9nd
0.1vO
4" for not add mpg-C according to the step of embodiment 1
3n
4bi obtained during powder
0.9nd
0.1vO
4the degradation curve of powder.The C/C of ordinate in Fig. 3
0for the ratio of the concentration after certain rhodamine B degraded and its initial concentration in moment.See from figure, the mpg-C of preparation
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst all has higher degrading activity, the mpg-C of wherein embodiment 3 preparation
3n
4/ Bi
0.9nd
0.1vO
4composite photocatalyst for degrading activity is the highest, after simulated solar irradiation irradiates 180min, reaches about 90% to the degradation rate of rhodamine B (RhB), and this illustrates mpg-C
3n
4with Bi
0.9nd
0.1vO
4semiconductor carries out compound, effectively can improve BiVO
4the photolytic activity of catalyst, has potential using value in environmental wastewater process.
The foregoing is only one embodiment of the present invention, it not whole or unique embodiment, the conversion of those of ordinary skill in the art by reading description of the present invention to any equivalence that technical solution of the present invention is taked, is claim of the present invention and contains.
Claims (10)
1. a mpg-C
3n
4/ Bi
0.9nd
0.1vO
4the preparation method of composite photo-catalyst, is characterized in that, comprises the following steps:
Step 1: be the melamine aqueous solution and the concentration of 2.1 ~ 2.15mol/L by concentration be the Nano-meter SiO_2 of 0.8 ~ 0.85mol/L
2the aqueous solution mixes for 3:2 by volume, stirs after ultrasonic disperse again, then dries, and obtains white solid, loads in crucible, at N by after white solid porphyrize
2be warming up to 540 ~ 560 DEG C of calcining 4h in atmosphere furnace, obtain pale yellow powder, then use NH
4hF
2aqueous corrosion pale yellow powder, removing SiO wherein
2template, finally washing, drying, obtain mpg-C
3n
4powder;
Step 2: by mpg-C
3n
4it is even that powder joins ultrasonic disperse in ethanol, obtains mpg-C
3n
4alcoholic solution, then by mpg-C
3n
4alcoholic solution joins NH
4vO
3the aqueous solution in, stir, obtain A liquid; Mpg-C in A liquid
3n
4be (0.25 ~ 1) with the mol ratio of V: 1;
Step 3: by Bi (NO
3)
35H
2o is added to the water, and stirs, and obtains bismuth salting liquid, by Nd (NO
3)
36H
2o joins in bismuth salting liquid, stirs, and obtains B liquid; In B liquid, the mol ratio of Nd and Bi is 1:9;
Step 4: added in B liquid by A liquid, stir, obtains reaction precursor liquid; In reaction precursor liquid, (Bi+Nd) is 1:1 with the mol ratio of V;
Step 5: reaction precursor liquid is added in microwave hydrothermal reaction kettle, microwave hydrothermal reaction kettle is placed in microwave assisted hydrothermal synthesis apparatus, setting pressure is 1.2MPa, under the microwave power of 300W, from room temperature to 95 ~ 105 DEG C, insulation 7 ~ 9min; Then continue to be warming up to 145 ~ 155 DEG C, insulation 7 ~ 9min; Continue again to be warming up to 175 ~ 185 DEG C, after insulation 35 ~ 45min, terminate reaction;
Step 6: be cooled to room temperature after question response terminates, then takes out the sediment in microwave hydrothermal reaction kettle, and washing, drying, obtain mpg-C
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst.
2. mpg-C according to claim 1
3n
4/ Bi
0.9nd
0.1vO
4the preparation method of composite photo-catalyst, is characterized in that: in described step 1, the time of ultrasonic disperse is 55 ~ 65min;
The time that in described step 2, ultrasonic disperse is evenly required is 1 ~ 2h.
3. mpg-C according to claim 1
3n
4/ Bi
0.9nd
0.1vO
4the preparation method of composite photo-catalyst, is characterized in that: the bake out temperature in described step 1 is 75 ~ 85 DEG C;
Programming rate in described step 1 is 2 ~ 3 DEG C/min.
4. mpg-C according to claim 1
3n
4/ Bi
0.9nd
0.1vO
4the preparation method of composite photo-catalyst, is characterized in that: described NH
4hF
2the concentration of the aqueous solution is 3.5 ~ 4.5mol/L.
5. mpg-C according to claim 1
3n
4/ Bi
0.9nd
0.1vO
4the preparation method of composite photo-catalyst, is characterized in that: described NH
4vO
3the aqueous solution in NH
4vO
3concentration be 0.3 ~ 0.4mol/L;
Bi (NO in described bismuth salting liquid
3)
35H
2the concentration of O is 0.3 ~ 0.4mol/L.
6. mpg-C according to claim 1
3n
4/ Bi
0.9nd
0.1vO
4the preparation method of composite photo-catalyst, is characterized in that: the required time that stirs in described step 2 is 25 ~ 35min;
Required time that stirs in described step 3 is 20 ~ 35min.
7. mpg-C according to claim 1
3n
4/ Bi
0.9nd
0.1vO
4the preparation method of composite photo-catalyst, is characterized in that: the required time that stirs in described step 4 is 35 ~ 45min.
8. mpg-C according to claim 1
3n
4/ Bi
0.9nd
0.1vO
4the preparation method of composite photo-catalyst, is characterized in that: the drying in described step 6 is 10 ~ 12h dry at 75 ~ 85 DEG C.
9. the mpg-C in claim 1-8 described in any one
3n
4/ Bi
0.9nd
0.1vO
4the mpg-C that the preparation method of composite photo-catalyst obtains
3n
4/ Bi
0.9nd
0.1vO
4composite photo-catalyst, is characterized in that: this composite photo-catalyst is by mpg-C
3n
4and Bi
0.9nd
0.1vO
4composition, wherein mpg-C
3n
4with Bi
0.9nd
0.1vO
4mol ratio be (0.25 ~ 1): 1, mpg-C
3n
4for mesoporous material, its aperture is 3 ~ 65nm.
10. mpg-C according to claim 9
3n
4/ Bi
0.9nd
0.1vO
4the application of composite photo-catalyst in degradation of organic substances.
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| CN108855202A (en) * | 2018-06-05 | 2018-11-23 | 上海交通大学 | For photocatalytic water and the composite photo-catalyst of contaminant degradation and preparation method thereof |
| CN108927195A (en) * | 2018-07-06 | 2018-12-04 | 常州大学 | A kind of vanadium oxide catalyst and preparation method thereof for oxidative dehydrogenation of propane |
| CN110961450A (en) * | 2019-12-26 | 2020-04-07 | 上海应用技术大学 | Method for degrading naphthalene in soil through microwave-induced synergistic catalytic oxidation |
| CN110961450B (en) * | 2019-12-26 | 2021-11-09 | 上海应用技术大学 | Method for degrading naphthalene in soil through microwave-induced synergistic catalytic oxidation |
| CN112058291A (en) * | 2020-07-22 | 2020-12-11 | 上海应用技术大学 | Microspherical composite visible-light-driven photocatalyst and rapid preparation method and application thereof |
| CN114506955A (en) * | 2022-01-24 | 2022-05-17 | 华南理工大学 | Microwave hydrothermal pretreatment modified carbon nitride and preparation method and application thereof |
| CN114506955B (en) * | 2022-01-24 | 2023-10-31 | 华南理工大学 | Microwave hydrothermal pretreatment modified carbon nitride and preparation method and application thereof |
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