CN105771962A - Near-infrared response carbon quantum dots/Bi2MoO6 photocatalyst and preparing method thereof - Google Patents
Near-infrared response carbon quantum dots/Bi2MoO6 photocatalyst and preparing method thereof Download PDFInfo
- Publication number
- CN105771962A CN105771962A CN201610226417.9A CN201610226417A CN105771962A CN 105771962 A CN105771962 A CN 105771962A CN 201610226417 A CN201610226417 A CN 201610226417A CN 105771962 A CN105771962 A CN 105771962A
- Authority
- CN
- China
- Prior art keywords
- moo
- nano
- carbon quantum
- quantum dot
- cqds
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 39
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910002900 Bi2MoO6 Inorganic materials 0.000 title claims abstract description 27
- 230000004044 response Effects 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000002131 composite material Substances 0.000 claims abstract description 35
- 239000000725 suspension Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000007864 aqueous solution Substances 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 239000008367 deionised water Substances 0.000 claims abstract description 7
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 20
- 239000002105 nanoparticle Substances 0.000 claims description 15
- 229910004619 Na2MoO4 Inorganic materials 0.000 claims description 10
- 239000011684 sodium molybdate Substances 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 4
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims description 4
- 229910015667 MoO4 Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000011858 nanopowder Substances 0.000 claims description 3
- 239000002135 nanosheet Substances 0.000 claims description 3
- 230000001699 photocatalysis Effects 0.000 abstract description 10
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000003595 spectral effect Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract 2
- 229910004616 Na2MoO4.2H2 O Inorganic materials 0.000 abstract 1
- 238000005119 centrifugation Methods 0.000 abstract 1
- 239000013049 sediment Substances 0.000 abstract 1
- FDEIWTXVNPKYDL-UHFFFAOYSA-N sodium molybdate dihydrate Chemical compound O.O.[Na+].[Na+].[O-][Mo]([O-])(=O)=O FDEIWTXVNPKYDL-UHFFFAOYSA-N 0.000 abstract 1
- 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 18
- 229940043267 rhodamine b Drugs 0.000 description 18
- 239000000463 material Substances 0.000 description 11
- 238000006555 catalytic reaction Methods 0.000 description 9
- 238000006731 degradation reaction Methods 0.000 description 9
- 230000015556 catabolic process Effects 0.000 description 8
- 238000002835 absorbance Methods 0.000 description 5
- 238000007146 photocatalysis Methods 0.000 description 5
- 238000005297 material degradation process Methods 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- PPNKDDZCLDMRHS-UHFFFAOYSA-N dinitrooxybismuthanyl nitrate Chemical compound [Bi+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PPNKDDZCLDMRHS-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- DKUYEPUUXLQPPX-UHFFFAOYSA-N dibismuth;molybdenum;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Mo].[Mo].[Bi+3].[Bi+3] DKUYEPUUXLQPPX-UHFFFAOYSA-N 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001239 high-resolution electron microscopy Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B01J35/39—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/28—Molybdenum
Abstract
A near-infrared response carbon quantum dots (CQDs)/Bi2MoO6 photocatalyst is composed of Bi2MoO6 and CQDs, wherein CQDs are distributed on Bi2MoO6, and the mass ratio of CQDs to Bi2MoO6 is 1-15%:85-99%. The invention further provides a preparing method of the photocatalyst.Bi(NO3)3.5H2O aqueous solution and Na2MoO4.2H2O aqueous solution are mixed to obtain light yellow suspension liquid; CQDs aqueous solution is added to the light yellow suspension liquid and then transferred into a hydrothermal kettle for reaction at 140-180 DEG C, a product is washed with absolute ethyl alcohol and deionized water in sequence, then centrifugation is conducted, and sediment is dried, so that the CQDs/Bi2MoO6 composite photocatalyst with near-infrared photocatalytic activity is obtained. The photocatalyst has a wide spectral response range, high current carrier separation efficiency and high photocatalytic activity.
Description
Technical field
The invention belongs to materialogy field, relate to a kind of catalysis material, the carbon quantum dot/Bi of a kind of near-infrared response2MoO6Photocatalyst and preparation method.
Background technology
The environmental pollution day by day increased the weight of due to the whole world and energy crisis, the research of conductor photocatalysis and application cause the extensive concern of people.The key problem of photocatalysis technology is the design of appropriate light catalyst, develops and develop, and the research of the high-performance optical catalysis material of the widest spectral response becomes the task of top priority.But, the catalysis material great majority developed at present are only capable of absorption ultraviolet light or visible ray, and can not utilize near infrared light and the infrared light accounting for solar spectrum 53%.In recent years, researchers find that carbon quantum dot (CQDs) has up-conversion luminescence effect, and it can absorb near-infrared even infrared light, are converted into ultraviolet light and the visible ray of short-wave band.Therefore, CQDs and catalysis material are combined, just can utilize the up-conversion luminescence effect of CQDs that the near infrared light of long-wave band or infrared light are converted into visible ray and the ultraviolet light of short-wave band, and then exciting light catalysis material, thus widen the catalysis material absorption region to solar spectrum.
Bi2MoO6
Photocatalyst is to study more a kind of novel visible catalysis material recently, it is a kind of stable, nontoxic semi-conducting material, band gap is about 2.5～2.8eV, its threshold wave-length absorbed is more than 450 nm, active height, the advantages such as stability is strong, nontoxic and wide spectral response so that it is become the most most potential visible light catalyst.But, simple Bi2MoO6It is the widest to there is spectral response range in catalysis material, and the problem that Carrier recombination probability is high, thus limits its actual application.
Summary of the invention
For above-mentioned technical problem of the prior art, the invention provides the carbon quantum dot/Bi of a kind of near-infrared response2MoO6Photocatalyst and preparation method, the carbon quantum dot/Bi of described this near-infrared response2MoO6It is narrow that photocatalyst and preparation method to solve catalysis material polishing wax response range of the prior art, it is impossible to utilizes near infrared light and infrared light, and the technical problem that photo-generated carrier is easily combined.
The invention provides the carbon quantum dot/Bi of a kind of near-infrared response2MoO6Composite photo-catalyst, by the nano-sheet Bi of 50-100 nm2MoO6Forming with the carbon quantum dot of 5-10 nm, carbon quantum dot nano-particle is distributed in lamellar Bi2MoO6On, calculate by mass percentage, the carbon quantum dot of nano-particle: lamellar Bi of nano-scale2MoO6For 1-15%:85-99%.
Further, calculate by mass percentage, the carbon quantum dot of nano-particle: lamellar Bi of nano-scale2MoO6For 1%:99%.
Further, calculate by mass percentage, the carbon quantum dot of nano-particle: lamellar Bi of nano-scale2MoO6For 3.2%:96.8%.
Further, calculate by mass percentage, the carbon quantum dot of nano-particle: lamellar Bi of nano-scale2MoO6For 6%:94%.
Further, calculate by mass percentage, the carbon quantum dot of nano-particle: lamellar Bi of nano-scale2MoO6For 15%:85%.
Present invention also offers the carbon quantum dot/Bi of above-mentioned a kind of near-infrared response2MoO6The preparation method of composite photo-catalyst, comprises the following steps:
1) by Bi (NO3)3·5H2O is dissolved in nitric acid, and obtaining concentration is 0.05 ~ 1
Bi (the NO of mol/L3)3Solution；By Na2MoO4·2H2O is dissolved in deionized water, and obtaining concentration is 0.025 ~ 0.5
The Na of mol/L2MoO4Solution；
2) calculate the most in molar ratio, i.e. Bi (NO3)3Bi in solution3+: Na2MoO4MoO in solution4 2-For the ratio of 2:1, by Bi (NO3)3Solution and Na2MoO4Solution mix homogeneously, obtains light yellow suspension；
3) CQDs aqueous solution being joined step 2) in the light yellow suspension of gained, supersound process 20 ~ 40min, the power of supersound process is 40-100
W, frequency is 20-40 KHz, obtains grey suspension；
4) transferring in water heating kettle by the grey suspension of step 3) gained, controlling temperature is reaction 15 ~ 30h at 140 ~ 180 DEG C, and the product of gained uses dehydrated alcohol and deionized water wash successively, and then controlling temperature is 60-80
DEG C it is dried, obtains CQDs/Bi2MoO6Nano-powder.
The composite photo-catalyst of the present invention not only has preferably absorption to sunlight, and has higher carrier separation efficiency and photocatalysis performance.Wavelength more than 700 nm near infrared light irradiation under, CQDs/Bi2MoO6Composite degradation rate to rhodamine B in 10 h reaches 93.6%, and simple Bi2MoO6The most then rhodamine B can not be degraded.Visible CQDs/Bi2MoO6Composite photo-catalyst can have application prospect at degradable organic pollutant under near infrared light.
The present invention utilizes CQDs and Bi2MoO6It is combined, the up-conversion luminescence effect of CQDs can not only be utilized to increase Bi2MoO6Spectral response range, additionally it is possible to utilize the electron transfer of CQDs and electron storage ability to increase the separation efficiency of photo-generated carrier, thus bring effective lifting of photocatalysis performance.
The present invention compares with prior art, and its technological progress is significant.The CQDs/Bi of the present invention2MoO6It is simple that composite photo-catalyst has wider spectral response range, higher carrier separation efficiency and photocatalytic activity, and preparation method, and controllability is strong, easily accomplishes scale production, it is not necessary to special installation and harsh conditions.
Accompanying drawing explanation
Fig. 1 is the CQDs/Bi of embodiment 1 gained2MoO6The XRD diffraction spectrogram of composite photo-catalyst.
Fig. 2 is the CQDs/Bi of embodiment 1 gained2MoO6The high resolution electron microscopy photo of composite photo-catalyst.
Fig. 3 is the CQDs/Bi of embodiment 1 gained2MoO6Composite photo-catalyst is under near infrared light during rhodamine B degradation, and under different degradation times, the absorbance of the rhodamine B of gained is with the situation of change of detection wavelength.
Fig. 4 is with the CQDs/Bi of embodiment 1 gained2MoO6Composite photo-catalyst and simple Bi2MoO6Degradation curve comparison diagram to rhodamine B under near infrared light.
Detailed description of the invention
Below by specific embodiment and combine accompanying drawing the present invention is expanded on further, but it is not limiting as the present invention.
Raw materials used:
Bi(NO3)3·5H2O (analytical pure, Chemical Reagent Co., Ltd., Sinopharm Group)；
Na2MoO4·2H2O (analytical pure, Chemical Reagent Co., Ltd., Sinopharm Group)；
Nitric acid (analytical pure, Chemical Reagent Co., Ltd., Sinopharm Group)；
Dehydrated alcohol (analytical pure, Chemical Reagent Co., Ltd., Sinopharm Group).
Embodiment
1
A kind of CQDs/Bi2MoO6Composite photo-catalyst, by the nano-sheet Bi of 50-100 nm2MoO6Form with the carbon quantum dot of 5-10 nm, and CQDs nano-particle is distributed in lamellar Bi of nano-scale2MoO6On, calculate by mass percentage, lamellar Bi of the CQDs of nano-particle: nano-scale2MoO6For 3.2%:96.8%.
Above-mentioned a kind of CQDs/Bi2MoO6Composite photo-catalyst preparation method, specifically includes following steps:
(1), by Bi (NO3)3·5H2O is dissolved in nitric acid, and obtaining concentration is 0.1
Bi (the NO of mol/L3)3Solution；
By Na2MoO4·2H2O is dissolved in deionized water, and obtaining concentration is 0.05
The Na of mol/L2MoO4Solution；
Calculate the most in molar ratio, i.e. Bi (NO3)3Bi in solution3+: Na2MoO4MoO in solution4 2-For the ratio of 2:1, by Bi (NO3)3Solution and Na2MoO4Solution mix homogeneously, obtains light yellow suspension；
(2), by CQDs aqueous solution joining in the light yellow suspension of step (1) gained, control power is 40-100
W, frequency is that 20-40 KHz carries out supersound process 30min, obtains grey suspension;
(3), transferring in water heating kettle by the grey suspension of step (2) gained, controlling temperature is reaction 20h at 160 DEG C, and the product of gained is successively with dehydrated alcohol and deionized water wash 3 times, and then controlling temperature is 60-80
DEG C it is dried, obtains CQDs/Bi2MoO6Nano-powder.
Use the X-ray diffractometer (D/max2200PC, the Rigaku Co., Ltd.) CQDs/Bi to above-mentioned gained2MoO6Composite photo-catalyst is measured, and the XRD figure of gained spectrum is as it is shown in figure 1, the CQDs/Bi of as can be seen from Figure 1 gained2MoO6In composite photo-catalyst, the compound quantity because of CQDs is less, and XRD figure spectrum does not shows its diffraction maximum, only shows the bismuth molybdate peak of monoclinic phase.
Use Flied emission transmission electron microscope (FEI
TecnaiG2F30, FEI Co. of the U.S.) CQDs/Bi to above-mentioned gained2MoO6Composite photo-catalyst carries out pattern and Characterization for Microstructure, and the high-resolution-ration transmission electric-lens figure of gained is as in figure 2 it is shown, from figure 2 it can be seen that CQDs nano-particle is distributed in lamellar Bi of nano-scale2MoO6On, wherein 0.321 nm and 0.275 nm corresponds respectively to (002) face and the Bi of CQDs2MoO6The interplanar distance in (200) face.
In order to the photocatalysis performance of sample prepared by institute, the experiment of rhodamine B degradation under design simulation sunlight.Step is as follows: by 0.05
The CQDs/Bi of g embodiment 1 gained2MoO6It is 10 that composite photo-catalyst joins 50 mL concentration-5 In the rhodamine B aqueous solution of mol/L, lucifuge stirs 60 minutes, and to reach adsorption equilibrium, (500 W xenon lamps, bandgap wavelength is more than 700 to be subsequently placed near infrared light
The filter plate of nm) under irradiate, the detection absorbance of rhodamine B also records result；By ultraviolet-visible absorption spectra measurement rhodamine B solution at the absorbance of 552 nm, characterize the change of pollutant levels in solution, and then draw degradation rate；
Fig. 3 is the CQDs/Bi of the present embodiment gained2MoO6Composite photo-catalyst is under near infrared light during rhodamine B degradation, and under different degradation times, the absorbance of the rhodamine B of gained is with the situation of change of detection wavelength.From figure 3, it can be seen that along with the prolongation of light application time, rhodamine B absorbance at 552 nm is gradually reduced, simultaneous blue-shifted phenomenon, this explanation rhodamine B is gradually by CQDs/Bi2MoO6Composite photocatalyst for degrading.
Fig. 4 is the CQDs/Bi that the present embodiment obtains2MoO6Composite photocatalyst material and simple Bi2MoO6Nano material correlation curve figure to rhodamine B degradation rate under near infrared light.As seen from Figure 4: the CQDs/Bi obtained2MoO6Composite photocatalyst material degradation rate to rhodamine B in 10 h reaches 93.6%, and simple Bi2MoO6Rhodamine B can not be degraded under similarity condition, CQDs/Bi is described2MoO6Composite photocatalyst material has significant near-infrared photocatalytic activity.
Embodiment
2
The present embodiment the difference is that only with embodiment 1: CQDs and Bi2MoO6Mass ratio be 1%:99%, remaining content is all identical with described in embodiment 1.Analyze after testing and learn: the CQDs/Bi that the present embodiment is obtained2MoO6Composite photocatalyst material degradation rate to rhodamine B under the composite the same terms obtained with embodiment 1 is 80.7%.
Embodiment
3
The present embodiment the difference is that only with embodiment 1: CQDs and Bi2MoO6Mass ratio be 6%:94%, remaining content is all identical with described in embodiment 1.Analyze after testing and learn: the CQDs/Bi that the present embodiment is obtained2MoO6Composite photocatalyst material degradation rate to rhodamine B under the composite the same terms obtained with embodiment 1 is 76.8%.
Embodiment
4
The present embodiment the difference is that only with embodiment 1: CQDs and Bi2MoO6Mass ratio be 15%:85%, remaining content is all identical with described in embodiment 1.Analyze after testing and learn: the CQDs/Bi that the present embodiment is obtained2MoO6Composite photocatalyst material degradation rate to rhodamine B under the composite the same terms obtained with embodiment 1 is 68.1%.
In sum, a kind of CQDs/Bi that the present invention provides2MoO6Composite photo-catalyst, it is possible to the effectively near-infrared part in sunlight, has higher carrier separation efficiency and photocatalytic activity, can realize the degraded of organic pollution, have application prospect under the exciting of near infrared light；And described preparation method is simple, controllability is strong, easily accomplishes scale production.
The above is only the citing of embodiments of the present invention; it should be pointed out that, for those skilled in the art, on the premise of without departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be regarded as protection scope of the present invention.
Claims (6)
1. carbon quantum dot/the Bi of a near-infrared response2MoO6Composite photo-catalyst, it is characterised in that: by the nano-sheet Bi of 50-100 nm2MoO6Forming with the carbon quantum dot of 5-10 nm, carbon quantum dot nano-particle is distributed in lamellar Bi2MoO6On, calculate by mass percentage, the carbon quantum dot of nano-particle: lamellar Bi of nano-scale2MoO6For 1-15%:85-99%.
Carbon quantum dot/the Bi of a kind of near-infrared the most as claimed in claim 1 response2MoO6Composite photo-catalyst, it is characterised in that: calculate by mass percentage, the carbon quantum dot of nano-particle: lamellar Bi of nano-scale2MoO6For 1%:99%.
Carbon quantum dot/the Bi of a kind of near-infrared the most as claimed in claim 1 response2MoO6Composite photo-catalyst, it is characterised in that: calculate by mass percentage, the carbon quantum dot of nano-particle: lamellar Bi of nano-scale2MoO6For 3.2%:96.8%.
Carbon quantum dot/the Bi of a kind of near-infrared the most as claimed in claim 1 response2MoO6Composite photo-catalyst, it is characterised in that: calculate by mass percentage, the carbon quantum dot of nano-particle: lamellar Bi of nano-scale2MoO6For 6%:94%.
Carbon quantum dot/the Bi of a kind of near-infrared the most as claimed in claim 1 response2MoO6Composite photo-catalyst, it is characterised in that: calculate by mass percentage, the carbon quantum dot of nano-particle: lamellar Bi of nano-scale2MoO6For 15%:85%.
6. carbon quantum dot/the Bi of the arbitrary described a kind of near-infrared response of claim 1-52MoO6The preparation method of composite photo-catalyst, it is characterised in that comprise the following steps:
1) by Bi (NO3)3·5H2O is dissolved in nitric acid, obtains the Bi (NO that concentration is 0.05 ~ 1 mol/L3)3Solution；By Na2MoO4·2H2O is dissolved in deionized water, obtains the Na that concentration is 0.025 ~ 0.5 mol/L2MoO4Solution；
2) calculate the most in molar ratio, i.e. Bi (NO3)3Bi in solution3+: Na2MoO4MoO in solution4 2-For the ratio of 2:1, by Bi (NO3)3Solution and Na2MoO4Solution mix homogeneously, obtains light yellow suspension；
3) CQDs aqueous solution being joined step 2) in the light yellow suspension of gained, supersound process 20 ~ 40min, the power of supersound process is 40-100 W, and frequency is 20-40 KHz, obtains grey suspension；
4) transferring in water heating kettle by the grey suspension of step 3) gained, controlling temperature is reaction 15 ~ 30h at 140 ~ 180 DEG C, and the product of gained, successively with dehydrated alcohol and deionized water wash, then controls temperature and is 60-80 DEG C and is dried, obtain CQDs/Bi2MoO6Nano-powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610226417.9A CN105771962A (en) | 2016-04-13 | 2016-04-13 | Near-infrared response carbon quantum dots/Bi2MoO6 photocatalyst and preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610226417.9A CN105771962A (en) | 2016-04-13 | 2016-04-13 | Near-infrared response carbon quantum dots/Bi2MoO6 photocatalyst and preparing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105771962A true CN105771962A (en) | 2016-07-20 |
Family
ID=56397276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610226417.9A Pending CN105771962A (en) | 2016-04-13 | 2016-04-13 | Near-infrared response carbon quantum dots/Bi2MoO6 photocatalyst and preparing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105771962A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106902810A (en) * | 2017-03-10 | 2017-06-30 | 湖南大学 | Individual layer Bismuth tungstate nano-sheet composite photo-catalyst of carbon quantum dot modification and its preparation method and application |
| CN109343281A (en) * | 2018-11-28 | 2019-02-15 | 昆山龙腾光电有限公司 | A kind of liquid crystal display panel |
| CN109449424A (en) * | 2018-11-14 | 2019-03-08 | 陕西科技大学 | A kind of compound carbon dots lithium ion battery anode material of cobalt molybdate and preparation method thereof |
| CN110893340A (en) * | 2018-09-13 | 2020-03-20 | 江西理工大学 | Preparation method and application of carbon quantum dot carbon nanofiber modified nano bismuth molybdate photocatalyst |
| CN113145141A (en) * | 2021-04-28 | 2021-07-23 | 武汉理工大学 | For CO2Reduced CsPbBr3Quantum dot/nano CuCo2O4Composite photocatalyst and preparation method thereof |
| CN113275003A (en) * | 2021-05-17 | 2021-08-20 | 南昌航空大学 | Molybdenum dioxide/bismuth photocatalyst and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212405A (en) * | 2013-04-23 | 2013-07-24 | 福州大学 | Cadmium-doped bismuth molybdate visible-light-induced photocatalyst and preparation method and application of cadmium-doped bismuth molybdate visible-light-induced photocatalyst |
| CN104689834A (en) * | 2015-03-10 | 2015-06-10 | 聊城大学 | CdS-loaded Bi2WO6/CdS nano composite material as well as preparation method and application thereof |
-
2016
- 2016-04-13 CN CN201610226417.9A patent/CN105771962A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212405A (en) * | 2013-04-23 | 2013-07-24 | 福州大学 | Cadmium-doped bismuth molybdate visible-light-induced photocatalyst and preparation method and application of cadmium-doped bismuth molybdate visible-light-induced photocatalyst |
| CN104689834A (en) * | 2015-03-10 | 2015-06-10 | 聊城大学 | CdS-loaded Bi2WO6/CdS nano composite material as well as preparation method and application thereof |
Non-Patent Citations (4)
| Title |
|---|
| HAITAO LI ET AL.: ""Carbon quantum dots/Cu2O composites with protruding nanostructures and their highly efficient(near) infrared photocatalytic behavior"", 《JOURNAL OF MATERIALS CHEMISTRY》 * |
| JUN DI ET AL.: ""Novel visible-light-driven CQDs/Bi2WO6 hybrid materials with enhanced photocatalytic activity toward organic pollutants degradation and mechanism insight"", 《APPLIED CATALYSIS B:ENVIRONMENTAL》 * |
| JUN DI ET AL.: ""The synergistic role of carbon quantum dots for the improved photocatalytic performance of Bi2MoO6"", 《NANOSCALE》 * |
| 刘国聪等: ""钼酸铋的水热合成和光催化性能"", 《惠州学院学报（社会科学版）》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106902810A (en) * | 2017-03-10 | 2017-06-30 | 湖南大学 | Individual layer Bismuth tungstate nano-sheet composite photo-catalyst of carbon quantum dot modification and its preparation method and application |
| CN110893340A (en) * | 2018-09-13 | 2020-03-20 | 江西理工大学 | Preparation method and application of carbon quantum dot carbon nanofiber modified nano bismuth molybdate photocatalyst |
| CN109449424A (en) * | 2018-11-14 | 2019-03-08 | 陕西科技大学 | A kind of compound carbon dots lithium ion battery anode material of cobalt molybdate and preparation method thereof |
| CN109449424B (en) * | 2018-11-14 | 2021-09-28 | 陕西科技大学 | Cobalt molybdate composite carbon dot lithium ion battery anode material and preparation method thereof |
| CN109343281A (en) * | 2018-11-28 | 2019-02-15 | 昆山龙腾光电有限公司 | A kind of liquid crystal display panel |
| CN113145141A (en) * | 2021-04-28 | 2021-07-23 | 武汉理工大学 | For CO2Reduced CsPbBr3Quantum dot/nano CuCo2O4Composite photocatalyst and preparation method thereof |
| CN113145141B (en) * | 2021-04-28 | 2023-09-22 | 武汉理工大学 | For CO 2 Reduced CsPbBr 3 Quantum dot/nano CuCo 2 O 4 Composite photocatalyst and preparation method thereof |
| CN113275003A (en) * | 2021-05-17 | 2021-08-20 | 南昌航空大学 | Molybdenum dioxide/bismuth photocatalyst and preparation method and application thereof |
| CN113275003B (en) * | 2021-05-17 | 2023-01-06 | 南昌航空大学 | Molybdenum dioxide/bismuth photocatalyst and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105771962A (en) | Near-infrared response carbon quantum dots/Bi2MoO6 photocatalyst and preparing method thereof | |
| CN103736513B (en) | A kind of TiO 2(B) g-C 3n 4the preparation method of composite nano plate photochemical catalyst | |
| CN104014326B (en) | A kind of pucherite nanometer rods high efficiency photocatalyst and preparation method thereof | |
| CN103934012B (en) | SnS 2/ g-C 3n 4composite nano plate photochemical catalyst and preparation method | |
| CN103191725B (en) | BiVO4/Bi2WO6 composite semiconductor material as well as hydrothermal preparation method and application thereof | |
| CN105032468A (en) | Cu2O-TiO2/g-C3N4 ternary complex and preparation and application method thereof | |
| CN103480353A (en) | Method for synthesis of carbon quantum dot solution by hydrothermal process to prepare composite nano-photocatalyst | |
| CN108686665B (en) | Preparation method of nanorod zinc ferrite in-situ composite lamellar titanium dioxide photocatalytic material | |
| CN106944074B (en) | A kind of visible-light response type composite photo-catalyst and its preparation method and application | |
| CN105833860A (en) | CQDs/Bi2WO6 composite photocatalyst and preparation method thereof | |
| CN108262054A (en) | A kind of preparation method of silver vanadate/nitride porous carbon heterojunction composite photocatalyst | |
| CN105056973B (en) | Efficient Bi2S3-BiFeO3 composite visible-light-driven photocatalyst prepared through in-situ growth with chemical corrosion method and application of Bi2S3-BiFeO3 composite visible-light-driven photocatalyst | |
| CN109590005A (en) | A kind of high electron-transporting type nucleocapsid ZnIn2S4Nanometer sheet/Ta3N5The preparation method and application of composite photo-catalyst | |
| CN102188984A (en) | Composite photochemical catalyst BiOCl/BiOI and preparation method thereof | |
| CN108745393A (en) | A kind of bismuth-bismuthyl carbonate heterojunction structure catalysis material and preparation method thereof | |
| CN108355669B (en) | Magnetic nano onion carbon loaded Bi2WO6Photocatalyst and preparation method and application thereof | |
| CN103861618A (en) | Preparation method for SnO2-based composite visible light photocatalyst | |
| CN109289872B (en) | Full-spectrum response carbon dioxide reduction composite photocatalyst and preparation method thereof | |
| CN110368962A (en) | A kind of BiOI/WO3Preparation method, product and the application of hetero-junctions efficient photoelectricity treater catalysis electrode | |
| CN105664995A (en) | Multi-element co-doped nano titanium dioxide photocatalytic material | |
| CN102671674A (en) | Magnetically supported silver bromide photochemical catalysis material and preparation method thereof | |
| CN107262115A (en) | A kind of ZnO load Cs dIn2S4The preparation method and applications of the composite photo-catalyst of nano cubic block | |
| CN106693996A (en) | Preparation method and application for bismuth sulfide-bismuth ferrate composite visible-light photocatalyst | |
| CN106902803A (en) | Compound photocatalytic system CQDS‑KNbO3And its preparation method and application | |
| CN104138763B (en) | Ag3PO4/TiOF2The preparation method of composite photo-catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160720 |