CN104226338B - A kind of cuprous sulfide quantum dot modifies three-dimensional flower-shaped structure BiOBr composite photocatalyst material and preparation method thereof - Google Patents
A kind of cuprous sulfide quantum dot modifies three-dimensional flower-shaped structure BiOBr composite photocatalyst material and preparation method thereof Download PDFInfo
- Publication number
- CN104226338B CN104226338B CN201410315023.1A CN201410315023A CN104226338B CN 104226338 B CN104226338 B CN 104226338B CN 201410315023 A CN201410315023 A CN 201410315023A CN 104226338 B CN104226338 B CN 104226338B
- Authority
- CN
- China
- Prior art keywords
- quantum dot
- biobr
- dimensional flower
- shaped structure
- preparation
- 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.)
- Expired - Fee Related
Links
- 239000002096 quantum dot Substances 0.000 title claims abstract description 32
- 239000002131 composite material Substances 0.000 title claims abstract description 26
- AQMRBJNRFUQADD-UHFFFAOYSA-N copper(I) sulfide Chemical compound [S-2].[Cu+].[Cu+] AQMRBJNRFUQADD-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 title claims abstract description 23
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000243 solution Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000010949 copper Substances 0.000 claims abstract description 16
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000015556 catabolic process Effects 0.000 claims abstract description 12
- 238000007710 freezing Methods 0.000 claims abstract description 9
- 230000008014 freezing Effects 0.000 claims abstract description 9
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims abstract description 8
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000013019 agitation Methods 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000000839 emulsion Substances 0.000 claims abstract description 6
- 239000005864 Sulphur Substances 0.000 claims abstract description 3
- 150000001879 copper Chemical class 0.000 claims abstract description 3
- XTLNYNMNUCLWEZ-UHFFFAOYSA-N ethanol;propan-2-one Chemical compound CCO.CC(C)=O XTLNYNMNUCLWEZ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 239000012266 salt solution Substances 0.000 claims abstract description 3
- -1 softex kw Chemical compound 0.000 claims abstract description 3
- 238000005406 washing Methods 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 8
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 6
- 238000006555 catalytic reaction Methods 0.000 claims description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 230000001699 photocatalysis Effects 0.000 abstract description 13
- 238000006731 degradation reaction Methods 0.000 abstract description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 6
- 239000001257 hydrogen Substances 0.000 abstract description 6
- 150000001875 compounds Chemical class 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 239000000356 contaminant Substances 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 12
- 238000007146 photocatalysis Methods 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 239000012153 distilled water Substances 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 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 4
- 229940043267 rhodamine b Drugs 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000008346 aqueous phase Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 3
- 229960000907 methylthioninium chloride Drugs 0.000 description 3
- 239000004530 micro-emulsion Substances 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 238000001291 vacuum drying Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 2
- 238000006552 photochemical reaction Methods 0.000 description 2
- 238000006303 photolysis reaction Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000004064 cosurfactant 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
- 238000013461 design Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Catalysts (AREA)
Abstract
The present invention relates to a kind of cuprous sulfide quantum dot and modify three-dimensional flower-shaped structure BiOBr composite photocatalyst material and preparation method thereof.The cuprous sulfide quantum point grain diameter of preparation, between 5-20nm, is dispersed on three-dimensional flower-shaped BiOBr microballoon uniformly.Prepare two parts by normal octane, softex kw, n-butanol and water are mixed to form uniform system, and add BiOBr and copper salt solution in a system wherein, another system adds sulfide solution.Control the mol ratio of copper and element sulphur 2 ~ 3, be added drop-wise in the system containing BiOBr metallizing thing by containing sulfide solution system, freezing breakdown of emulsion after Keep agitation 2-12 hour, centrifugal after adding ethanol acetone mixture, washing, dry prepared material.Cuprous sulfide quantum dot can strengthen the utilization rate of compound to visible ray, and transfer photo-generated carrier, promote photocatalytic activity greatly, this makes it in degradation of contaminant and light hydrogen production by water decomposition, show larger application potential.
Description
Technical field
The present invention relates to a kind of cuprous sulfide quantum dot and modify three-dimensional flower-shaped structure BiOBr composite photocatalyst material, belong to photocatalysis technology field, can be used for photocatalytic degradation and the photolysis water hydrogen of organic pollution.
Background technology
Current, energy shortage and environmental pollution become the whole mankind common faced by a difficult problem, conductor photocatalysis material can realize solar energy and be converted into chemical energy and carry out organic matter degradation and light hydrogen production by water decomposition, receives and pays close attention to widely.Novel visible catalysis material BiOBr, has three-dimensional flower-shaped micro-sphere structure, shows excellent photocatalysis performance and receive much concern in light degradation organic pollution.Wherein, the specific area that flower-like structure is larger provides more avtive spot, is conducive to the absorption degradation of pollutant; Open architecture and indirect transition pattern can be worked in coordination with and be promoted that the effective of electron-hole pair is separated simultaneously, are conducive to its photocatalysis performance.But the problems such as the relatively little and quick compound of photo-generated carrier of photoresponse scope existed itself limit actual application ability.Modification is carried out to three-dimensional flower-shaped structure BiOBr, photoresponse scope can be improved, and effectively can suppress the compound of photo-generated carrier, improve photocatalysis performance further.Research focus mostly in by BiOBr and other semiconductors coupling to improve the separative efficiency of photo-generate electron-hole, but there are some drawbacks carrying out compound tense, as larger in catalyst granules particle diameter, reduce the specific area of compound, cover avtive spot etc., the research that size and the pattern of catalyst control also is nowhere near simultaneously.The present invention modifies three-dimensional flower-shaped structure BiOBr by preparing cuprous sulfide quantum dot, molecule or nanometer level realize the Precise control to cuprous sulfide size, pattern, thus in the quantum effect utilizing quantum dot special, strengthen visible ray utilization rate and improve on the basis of photogenerated charge separative efficiency, increase the area and the adsorption activity position that accept illumination simultaneously, strengthen nanoparticle dispersion and stability, improve the photocatalysis performance of BiOBr composite photo-catalyst further.Therefore, design and synthesis cuprous sulfide quantum dot modifies three-dimensional flower-shaped structure BiOBr, is all necessary to scientific research and practical application.
Summary of the invention
The present invention is directed to that to there is particle when conventional method carries out modification to BiOBr large, specific area is low, cover the problem such as avtive spot and photo-generated carrier recombination rate height, provide one and modify three-dimensional flower-shaped structure BiOBr composite photocatalyst material based on cuprous sulfide quantum dot, visible ray utilization rate can be significantly improved and improve the separation of photo-generated carrier, improve the photocatalysis performance of composite.Provide a kind of simple material preparation method simultaneously, realize the accurate control to cuprous sulfide particle diameter, thing non-secondary pollution in light degradation process.Cuprous sulfide quantum dot provided by the present invention modifies three-dimensional flower-shaped structure BiOBr composite photocatalyst material, and cuprous sulfide quantum point grain diameter, between 5-20nm, is dispersed in uniformly on three-dimensional flower-shaped BiOBr microballoon, has outstanding visible light catalysis activity.
Preparation method of the present invention comprises the following steps:
(1) adopt normal octane, softex kw, n-butanol and water are mixed to form uniform system, are divided into two parts, are designated as system A and system B;
(2) be dissolved in by BiOBr in above-mentioned system A, dropwise drip copper salt solution after stirring 30-60min, dropping limit, limit is stirred, and after dropwising, continues stirring and makes to react completely; Sulfide solution is dropwise dropped in system B, Keep agitation simultaneously;
(3) in step (2) gained containing under mantoquita system A is in the condition of stirring, dropwise will be added drop-wise in system A containing sulfide solution system B, room temperature with constant stirring 2-12h;
(4) solution of step (3) gained is carried out freezing breakdown of emulsion, three-dimensional flower-shaped structure BiOBr composite photocatalyst material is modified in centrifugal after adding ethanol acetone mixture, washing, dry cuprous sulfide quantum dot.
By such scheme, described cuprous sulfide quantum dot is 0.5% ~ 10% with the content ratio of BiOBr.
By such scheme, the normal octane described in step (1) and the ratio between water are 10:1 ~ 20:1.
By such scheme, the mantoquita described in step (2) comprises Schweinfurt green, copper chloride, copper sulphate; Sulfide comprises vulcanized sodium or thiocarbamide.
By such scheme, the copper described in step (3) and the consumption mol ratio of element sulphur are 2:1 ~ 3:1.
The invention has the advantages that:
This legal system is adopted to modify three-dimensional flower-shaped structure BiOBr composite photocatalyst material for cuprous sulfide quantum dot, surfactant in reaction system and cosurfactant can reduce surface tension, steric hindrance repelling effect is produced between two-phase interface, effectively can suppress the reunion between reactant, realize accurate control to cuprous sulfide particle diameter, improve the dispersiveness of cuprous sulfide quantum dot on BiOBr surface and stability simultaneously.In the quantum effect utilizing quantum dot special, improve on the basis of photogenerated charge separative efficiency, increase the area and the adsorption activity position that accept illumination, strengthen nanoparticle dispersion and stability, improve the photocatalysis performance of BiOBr composite photocatalyst material further.There is the advantage such as nonhazardous, non-secondary pollution; Method of the present invention can be implemented at room temperature, at a normal simultaneously, and cost is low, and equipment is simple to operation, and can be mass-produced, and has important potential application in industrial production.
Accompanying drawing explanation
Fig. 1 is the X-ray powder diffraction figure that bulk material BiOBr of the present invention and cuprous sulfide quantum dot modify BiOBr composite.
Fig. 2 is Cu prepared by the present invention
2s quantum dot modifies the scanning electron microscope (SEM) photograph of BiOBr composite.
Fig. 3 is Cu prepared by the present invention
2s quantum dot modifies the ultraviolet-visible diffuse reflection collection of illustrative plates of BiOBr composite.
Fig. 4 is Cu prepared by the present invention
2photocatalytic degradation figure to rhodamine B under S quantum dot modification BiOBr composite visible ray.
Fig. 5 is Cu prepared by the present invention
2photodissociation aquatic products hydrogen rate under the visible ray of S quantum dot modification BiOBr composite.
Detailed description of the invention
The present invention is further illustrated below by enumerating examples of implementation.
embodiment 1
After successively 25ml normal octane, 2g softex kw, 4ml n-butanol and 1.0ml water being added to three, mixed preparing uniformly reverse micro emulsion in flask, is divided into two parts, is designated as system A and system B.1.0gBiOBr is dissolved in above-mentioned system A, after stirring, drips 0.06gCu (CH
3cOO)
2h
2o dropwise drops in system A after being dissolved in 1ml distilled water, fully stirs, and wherein oil phase is 12.5:1 with the ratio of aqueous phase.By 0.12gNa
2s dropwise drops in system B after being dissolved in and stirring in 1.0ml water, and sulfur content is 2 times of copper.Keep agitation 30min.System B solution dropwise instilled in system A subsequently, dropping limit, limit is stirred, and continues to be stirred to react completely after dropwising.The Cu generated
2the content of S quantum dot is 5% of BiOBr content.The solution of gained is transferred to refrigerator, and control temperature is-18oC, freezing 1h.The mixed solution adding ethanol in proper amount and acetone after taking-up carries out freezing breakdown of emulsion, adopts distilled water and ethanol is centrifugal, wash by the vacuum drying under 80oC of the powder of gained after 3 times, must Cu after drying
2s quantum dot modifies the BiOBr composite photocatalyst material of three-dimensional flower-shaped structure.
embodiment 2
After successively 30ml normal octane, 2g softex kw, 4ml n-butanol and 1.0ml water being added to three, mixed preparing uniformly reverse micro emulsion in flask, is divided into two parts, is designated as system A and system B.1.0gBiOBr is dissolved in above-mentioned system A, after stirring, drips 0.054gCuSO
45H
2o dropwise drops in system A after being dissolved in 1ml distilled water, fully stirs, and wherein oil phase is 15:1 with the ratio of aqueous phase.By 0.12gNa
2s dropwise drops in system B after being dissolved in and stirring in 1.0ml water, and sulfur content is 2.5 times of copper.Keep agitation 30min.System B solution dropwise instilled in system A subsequently, dropping limit, limit is stirred, and continues to be stirred to react completely after dropwising.The Cu generated
2the content of S quantum dot is 5% of BiOBr content.The solution of gained is transferred to refrigerator, and control temperature is-18oC, freezing 1h.The mixed solution adding ethanol in proper amount and acetone after taking-up carries out freezing breakdown of emulsion, adopts distilled water and ethanol is centrifugal, wash by the vacuum drying under 80oC of the powder of gained after 3 times, must Cu after drying
2s quantum dot modifies the BiOBr composite photocatalyst material of three-dimensional flower-shaped structure.
embodiment 3
After successively 25ml normal octane, 2g softex kw, 4ml n-butanol and 1.0ml water being added to three, mixed preparing uniformly reverse micro emulsion in flask, is divided into two parts, is designated as system A and system B.1.0gBiOBr is dissolved in above-mentioned system A, after stirring, drips 0.102gCuCl
22H
2o dropwise drops in system A after being dissolved in 1ml distilled water, fully stirs, and wherein oil phase is 12.5:1 with the ratio of aqueous phase.Be dissolved in by 0.24g thiocarbamide after stirring in 1.0ml water and dropwise drop in system B, sulfur content is 2 times of copper.Keep agitation 30min.System B solution dropwise instilled in system A subsequently, dropping limit, limit is stirred, and continues to be stirred to react completely after dropwising.The Cu generated
2the content of S quantum dot is 10% of BiOBr content.The solution of gained is transferred to refrigerator, and control temperature is-18oC, freezing 1h.The mixed solution adding ethanol in proper amount and acetone after taking-up carries out freezing breakdown of emulsion, adopts distilled water and ethanol is centrifugal, wash by the vacuum drying under 80oC of the powder of gained after 3 times, must Cu after drying
2s quantum dot modifies the BiOBr composite photocatalyst material of three-dimensional flower-shaped structure.
embodiment 4
Get 0.05g sample and 0.02g/L, 250mL rhodamine B solution to put into photochemical reaction instrument and carry out visible light photocatalysis reaction, absorption 1h, with the Halogen lamp LED of 250w for light source, add optical filter between light source and rhodamine B solution, isolated ultraviolet light, carries out visible light photocatalysis reaction.Reaction 1h, every 15min extracts 3mL solution, and detectable concentration changes.Result can obtain, and be 99% to the catalysis degradation modulus of rhodamine B under visible light, effect will be much better than BiOBr body.
embodiment 5
Adopt above-mentioned catalyst, get 0.05g sample and 0.01g/L, 100mL methylene blue solution is put into photochemical reaction instrument and is carried out visible light photocatalysis reaction, absorption 1h, with the Halogen lamp LED of 250w for light source, add optical filter between light source and methylene blue solution, isolated ultraviolet light, carries out visible light photocatalysis reaction.Reaction 1h, every 15min extracts 3mL solution, and detectable concentration changes.Result can obtain, and be 96% to the catalysis degradation modulus of methylene blue under visible light, effect will be much better than BiOBr body.
embodiment 6
Adopt above-mentioned catalyst, get 0.3g sample, with 100ml0.1mol/LNa
2s, 0.5mol/LNa
2sO
3the aqueous solution fully mixes in reative cell, 1000W xenon lamp, and visible ray, passes into 1mol/LNaNO in chuck
2solution is as cooling medium and filter out a small amount of ultraviolet that xenon lamp produces, and irradiates lower reaction 3h and carries out light hydrogen production by water decomposition.The result Photocatalyzed Hydrogen Production amount that can obtain under composite photocatalyst material visible ray is 0.75mmol/ (gcat), has outstanding H2-producing capacity.
Claims (4)
1. cuprous sulfide quantum dot modifies a preparation method for three-dimensional flower-shaped structure BiOBr composite photocatalyst material, it is characterized in that preparation process is:
(1) adopt normal octane, softex kw, n-butanol and water are mixed to form uniform system, are divided into two parts, are designated as system A and system B;
(2) be dissolved in by BiOBr in above-mentioned system A, dropwise drip copper salt solution after stirring 30-60min, dropping limit, limit is stirred, and after dropwising, continues stirring and makes to react completely; Sulfide solution is dropwise dropped in system B, Keep agitation simultaneously;
(3) in step (2) gained containing under mantoquita system A is in the condition of stirring, dropwise will be added drop-wise in system A containing sulfide solution system B, room temperature with constant stirring 2-12h;
(4) solution of step (3) gained is carried out freezing breakdown of emulsion, three-dimensional flower-shaped structure BiOBr composite photocatalyst material is modified in centrifugal after adding ethanol acetone mixture, washing, dry cuprous sulfide quantum dot;
(5) obtained cuprous sulfide quantum dot modifies three-dimensional flower-shaped structure BiOBr composite photocatalyst material, it is characterized in that: the cuprous sulfide quantum point grain diameter of preparation is between 5-20nm, be dispersed in uniformly on three-dimensional flower-shaped BiOBr microballoon, there is outstanding visible light catalysis activity.
2. cuprous sulfide quantum dot according to claim 1 modifies the preparation method of three-dimensional flower-shaped structure BiOBr composite photocatalyst material, it is characterized in that: the normal octane described in step (1) and the ratio between water are 10:1 ~ 20:1.
3. cuprous sulfide quantum dot according to claim 1 modifies the preparation method of three-dimensional flower-shaped structure BiOBr composite photocatalyst material, it is characterized in that: the mantoquita described in step (2) comprises Schweinfurt green, copper chloride, copper sulphate; Sulfide comprises vulcanized sodium or thiocarbamide.
4. cuprous sulfide quantum dot according to claim 1 modifies the preparation method of three-dimensional flower-shaped structure BiOBr composite photocatalyst material, it is characterized in that: the copper described in step (3) and the consumption mol ratio of element sulphur are 2:1 ~ 3:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315023.1A CN104226338B (en) | 2014-07-04 | 2014-07-04 | A kind of cuprous sulfide quantum dot modifies three-dimensional flower-shaped structure BiOBr composite photocatalyst material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315023.1A CN104226338B (en) | 2014-07-04 | 2014-07-04 | A kind of cuprous sulfide quantum dot modifies three-dimensional flower-shaped structure BiOBr composite photocatalyst material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104226338A CN104226338A (en) | 2014-12-24 |
| CN104226338B true CN104226338B (en) | 2015-11-11 |
Family
ID=52215760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410315023.1A Expired - Fee Related CN104226338B (en) | 2014-07-04 | 2014-07-04 | A kind of cuprous sulfide quantum dot modifies three-dimensional flower-shaped structure BiOBr composite photocatalyst material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104226338B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104971761A (en) * | 2015-07-01 | 2015-10-14 | 杭州臣工环保科技有限公司 | Nitrogen/sulfur-doped bismuth oxyhalide visible light catalysis material and preparation method thereof |
| CN106732687B (en) * | 2016-12-21 | 2018-12-04 | 郑州师范学院 | A kind of BiOI-M-B cooperative photocatalysis agent of photocatalytic degradation small organic molecule and its preparation method and application |
| CN110790298A (en) * | 2019-12-20 | 2020-02-14 | 上海帛汉新材料科技有限公司 | Preparation method of cuprous sulfide powder |
| CN115093847B (en) * | 2022-07-25 | 2023-04-07 | 武汉理工大学 | Aqueous phase synthesis method of cuprous sulfide quantum dots with adjustable size |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850263A (en) * | 2010-06-17 | 2010-10-06 | 江西理工大学 | A kind of Ag-doped BiOBr catalytic material and its preparation method and application |
| CN103157495A (en) * | 2013-03-20 | 2013-06-19 | 上海大学 | A kind of Au/BiOBr0.2I0.8 visible light catalyst and its preparation method |
-
2014
- 2014-07-04 CN CN201410315023.1A patent/CN104226338B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850263A (en) * | 2010-06-17 | 2010-10-06 | 江西理工大学 | A kind of Ag-doped BiOBr catalytic material and its preparation method and application |
| CN103157495A (en) * | 2013-03-20 | 2013-06-19 | 上海大学 | A kind of Au/BiOBr0.2I0.8 visible light catalyst and its preparation method |
Non-Patent Citations (2)
| Title |
|---|
| Cadmium sulphide quantum dots sensitized hierarchical bismuth oxybromide;ZhangSheng Liu等;《Journal of Colloid and Interface Science》;20121013;第337页右栏第10－24行，第339页左栏第1行至右栏第2行，第340页右栏第14行至341页左栏第21行，图3 * |
| Cu2S/TiO2 heterojunction applied to visible light Orange II degradation;Y. Bessekhouad等;《Journal of Photochemistry and Photobiology A:Chemistry》;20120831;摘要 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104226338A (en) | 2014-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wu et al. | Constructing NiFe-LDH wrapped Cu2O nanocube heterostructure photocatalysts for enhanced photocatalytic dye degradation and CO2 reduction via Z-scheme mechanism | |
| Xiao et al. | S-scheme heterojunction constructed by ZnCdS and CoWO4 nano-ions promotes photocatalytic hydrogen production | |
| Zhang et al. | Spatially separated catalytic sites supplied with the CdS–MoS 2–In 2 O 3 ternary dumbbell S-scheme heterojunction for enhanced photocatalytic hydrogen production | |
| Zhong et al. | Preparation of a novel composite photocatalyst BiOBr/ZIF-67 for enhanced visible-light photocatalytic degradation of RhB | |
| Chang et al. | Facile construction of Z-scheme AgCl/Ag-doped-ZIF-8 heterojunction with narrow band gaps for efficient visible-light photocatalysis | |
| CN102513134B (en) | A kind of bismuth sulfide nanoparticle/bismuth oxychloride composite photocatalytic material and preparation method thereof | |
| Sun et al. | Plasmonic coupling-boosted photothermal nanoreactor for efficient solar light-driven photocatalytic water splitting | |
| Zou et al. | Construction of zinc-indium-sulfide/indium oxide step-scheme junction catalyst for enhanced photocatalytic activities of pollutant degradation and hydrogen generation | |
| Zhao et al. | Construction and enhanced efficiency of Z-scheme-based ZnCdS/Bi2WO6 composites for visible-light-driven photocatalytic dye degradation | |
| Xiao et al. | Fabrication of MoS2/CdIn2S4 Z-scheme heterojunctions with fast interface electronic transfer for highly efficient photocatalytic degradations of multiple organic pollutants | |
| CN108855143A (en) | A kind of Z-type structure ZnIn2S4/Ag/Bi2WO6The preparation method of composite photo-catalyst | |
| CN107376944B (en) | Application of Transition Metal Sulfide Supported Mn-Cd-S Solid Solution in Photocatalytic Hydrogen Production | |
| CN104226338B (en) | A kind of cuprous sulfide quantum dot modifies three-dimensional flower-shaped structure BiOBr composite photocatalyst material and preparation method thereof | |
| CN109847786A (en) | A kind of preparation method and application of Z-type photocatalyst MgAlLDH/CN-H | |
| Zhao et al. | Heterostructured graphitic-carbon-nitride-nanosheets/copper (I) oxide composite as an enhanced visible light photocatalyst for decomposition of tetracycline antibiotics | |
| Li et al. | Construction of hollow tubular Co9S8/ZnSe S-scheme heterojunctions for enhanced photocatalytic H2 evolution | |
| Zhang et al. | Co-MOF-67 derived hollow double-shell core Co3O4 with Zn0. 5Cd0. 5S to construct pn heterojunction for efficient photocatalytic hydrogen evolution | |
| CN105289656A (en) | Solid solution catalyst for photocatalytic decomposition of water to produce hydrogen, and preparation method thereof | |
| CN114534746B (en) | A photocatalytic hydrogen production system based on heterojunction photocatalyst and formaldehyde aqueous solution | |
| CN106693994A (en) | Preparation and application of core-shell structure bismuth sulfide@copper sulfide composite microspheres | |
| Wang et al. | One-pot synthesis of porous g-C3N4 nanosheets with enhanced photocatalytic activity under visible light | |
| CN113856702B (en) | Cadmium sulfide nanorod/cuprous sulfide nanoshell heterostructure photocatalyst and preparation method and application thereof | |
| CN106268881B (en) | A kind of square block Ag2MoO4@Ag@AgBr ternary complex and its preparation method and application | |
| Li et al. | Heterojunction tuning and catalytic efficiency of g-C3N4–Cu2O with glutamate | |
| CN106268902A (en) | A preparation method of g-C3N4 quantum dots and Ag quantum dots sensitized BiVO4 photocatalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20190704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |