CN107282071A - A kind of spherical AgInS2/Bi2S3Heterojunction photocatalysis material and its preparation method and application - Google Patents
A kind of spherical AgInS2/Bi2S3Heterojunction photocatalysis material and its preparation method and application Download PDFInfo
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- CN107282071A CN107282071A CN201710500452.XA CN201710500452A CN107282071A CN 107282071 A CN107282071 A CN 107282071A CN 201710500452 A CN201710500452 A CN 201710500452A CN 107282071 A CN107282071 A CN 107282071A
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- 239000000463 material Substances 0.000 title claims abstract description 47
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 46
- 238000007146 photocatalysis Methods 0.000 title claims abstract description 44
- 229910003373 AgInS2 Inorganic materials 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 10
- 239000002105 nanoparticle Substances 0.000 claims abstract description 9
- 238000013033 photocatalytic degradation reaction Methods 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 5
- 239000010919 dye waste Substances 0.000 claims abstract description 4
- 239000002077 nanosphere Substances 0.000 claims abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 25
- 239000000243 solution Substances 0.000 claims description 17
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 8
- 235000019441 ethanol Nutrition 0.000 claims description 8
- 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 claims description 8
- 229940043267 rhodamine b Drugs 0.000 claims description 7
- 239000011259 mixed solution Substances 0.000 claims description 6
- 238000001291 vacuum drying Methods 0.000 claims description 6
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 5
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- YUKQRDCYNOVPGJ-UHFFFAOYSA-N thioacetamide Chemical compound CC(N)=S YUKQRDCYNOVPGJ-UHFFFAOYSA-N 0.000 claims description 5
- 229960000583 acetic acid Drugs 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000012362 glacial acetic acid Substances 0.000 claims description 4
- WPZFLQRLSGVIAA-UHFFFAOYSA-N sodium tungstate dihydrate Chemical compound O.O.[Na+].[Na+].[O-][W]([O-])(=O)=O WPZFLQRLSGVIAA-UHFFFAOYSA-N 0.000 claims description 4
- DLFVBJFMPXGRIB-UHFFFAOYSA-N thioacetamide Natural products CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 claims description 4
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052797 bismuth Inorganic materials 0.000 claims description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 2
- FSAJRXGMUISOIW-UHFFFAOYSA-N bismuth sodium Chemical compound [Na].[Bi] FSAJRXGMUISOIW-UHFFFAOYSA-N 0.000 claims description 2
- 238000002242 deionisation method Methods 0.000 claims description 2
- 150000004677 hydrates Chemical class 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims 1
- 239000002244 precipitate Substances 0.000 claims 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000001027 hydrothermal synthesis Methods 0.000 abstract description 3
- 238000005342 ion exchange Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 239000004065 semiconductor Substances 0.000 description 4
- 239000003708 ampul Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- -1 Disodium tungstate (Na2WO4) dihydrates Chemical class 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000004847 absorption spectroscopy Methods 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000000445 field-emission scanning electron microscopy Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000003786 synthesis reaction 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
- PMNLUUOXGOOLSP-UHFFFAOYSA-N 2-mercaptopropanoic acid Chemical class CC(S)C(O)=O PMNLUUOXGOOLSP-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 150000001243 acetic acids Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/04—Sulfides
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
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Abstract
The invention discloses a kind of spherical AgInS2/Bi2S3Heterojunction photocatalysis material and its preparation method and application, belongs to catalysis material technical field.Technical scheme main points are：A kind of spherical AgInS2/Bi2S3Heterojunction photocatalysis material, by AgInS2Nanoparticle and Bi2S3Nanosphere is constituted, and wherein particle diameter is 150 200nm AgInS2Nanoparticle is deposited on the Bi that average grain diameter is 4 μm2S3Nanometer ball surface.The invention further particularly discloses the spherical AgInS2/Bi2S3The preparation method of heterojunction photocatalysis material and its application in photocatalytic degradation of dye waste water.The present invention synthesizes spherical AgInS using hydro-thermal method and ion-exchange2/Bi2S3Heterojunction photocatalysis material, can effectively facilitate the separation in electronics and hole, so as to improve mutual photocatalysis efficiency, building-up process technique is simple, environmental protection, is adapted to large-scale production, be expected to produce good social and economic benefit.
Description
Technical field
The invention belongs to catalysis material technical field, and in particular to a kind of spherical AgInS2/Bi2S3Heterojunction photocatalysis
Material and its preparation method and application.
Background technology
Photocatalitic Technique of Semiconductor refers to semiconductor under the irradiation of visible ray or ultraviolet light, by oxidation operation into low point
Sub- intermediate product, ultimately generates the process of titanium dioxide, water and other harmless inorganic ions.Conductor photocatalysis material in recent years
Get more and more people's extensive concerning, because it has advantages below：First, nontoxic, harmless non-corrosiveness, can be recycled；2nd, light is urged
Agent can be reacted using sunshine at room temperature, economical and effective, so photocatalysis technology particularly can in terms of environmental protection
Source is utilized and depollution of environment aspect has very wide application prospect.
Bi2S3It is widely studied by people as a kind of common catalysis material with visible light photocatalysis active,
Bi2S3Band gap width be about 1.3eV, its valence band conduction band positions are respectively 1.43eV and 0.108eV, in the irradiation of visible ray
Under, it is easy to excited and generate photo-generate electron-hole pair, but be easier to be combined, it is desirable to further improve Bi2S3Light
Catalytic performance, it is necessary to improve the separation rate of light induced electron and photohole.
I-III-VI races novel tertiary semiconductor AgInS2Not only there is preferable photocatalysis performance, while because of its low toxicity ring
The characteristics of guarantor, great progress, AgInS are achieved in recent years2Energy gap be about 1.8eV, its valence band conduction band position
Respectively 1.18eV and -0.57eV are put, some visible light can only be utilized.
By Bi2S3And AgInS2Their cooperative effect can be made full use of by constituting heterojunction photocatalysis material, make up both
Shortcoming, their distinctive valence band conduction band positions make they constitute chiasma type heterojunction semiconductor materials, be effectively facilitated electronics
With the separation in hole, so as to improve mutual photocatalysis efficiency, but at present still on the spherical AgInS of synthesis2/Bi2S3
Heterojunction photocatalysis material is to improve the relevant report of its photocatalysis performance.
The content of the invention
Present invention solves the technical problem that there is provided a kind of spherical AgInS2/Bi2S3Heterojunction photocatalysis material and its system
Preparation Method, has been synthesized by AgInS using hydro-thermal method and the step of ion-exchange two2Nanoparticle and Bi2S3It is spherical that nanosphere is constituted
AgInS2/Bi2S3Heterojunction photocatalysis material, the spherical AgInS2/Bi2S3Heterojunction photocatalysis material shows preferably visible
Photocatalytic activity, can be used in photocatalytic degradation of dye waste water.
The present invention is to solve above-mentioned technical problem to adopt the following technical scheme that, a kind of spherical AgInS2/Bi2S3Hetero-junctions light
Catalysis material, it is characterised in that the spherical AgInS2/Bi2S3Heterojunction photocatalysis material is by AgInS2Nanoparticle and Bi2S3Nanometer
Ball is constituted, and wherein particle diameter is 150-200nm AgInS2Nanoparticle is deposited on the Bi that average grain diameter is 4 μm2S3Nanometer ball surface.
Spherical AgInS of the present invention2/Bi2S3The preparation method of heterojunction photocatalysis material, it is characterised in that specific
Step is：
（1）Spherical Bi2WO6Preparation, polyvinylpyrrolidone and five nitric hydrate bismuths are dissolved in ethanol, glacial acetic acid and deionization
In the mixed solution of water, it is stirred at room temperature after 15min and obtains solution A, takes Disodium tungstate (Na2WO4) dihydrate to be dissolved in deionized water and obtain molten
Liquid B, solution B under stirring be added in solution A and be well mixed, and mixed solution is transferred in reactor in 180
DEG C reaction 3h, be cooled to room temperature, by precipitation water and absolute ethyl alcohol cyclic washing, then obtain lamina stack in 60 DEG C of vacuum drying
Long-pending spherical Bi2WO6；
（2）Spherical AgInS2/Bi2S3The preparation of heterojunction photocatalysis material, by spherical Bi2WO6It is scattered in deionized water, then
Sequentially add mercaptopropionic acid, AgNO3、In(NO3)3And thioacetamide, adjust mixed with sodium hydroxide solution after being uniformly mixed
The pH value for closing solution is 10.5, is further continued for being transferred to after being uniformly mixed in reactor and reacts 3h in 180 DEG C, then gained sinks
Starch is centrifuged, and is washed with deionized water and absolute ethyl alcohol and spherical AgInS is made after 60 DEG C of vacuum drying2/Bi2S3It is different
Matter knot catalysis material.
Further preferably, step（1）Described in five nitric hydrate bismuths and Disodium tungstate (Na2WO4) dihydrate molar ratio be 2:1,
The volume ratio of the ethanol, glacial acetic acid and deionized water is 1:1:3, the charge ratio of the five nitric hydrates bismuth and ethanol is
1mmol:The charge ratio of 5mL, the polyvinylpyrrolidone and five nitric hydrate bismuths is 0.2g:1mmol.
Further preferably, step（2）Described in Bi2WO6、AgNO3、In(NO3)3Molar ratio with thioacetamide is
1.2:1:1:5.6。
Spherical AgInS of the present invention2/Bi2S3Heterojunction photocatalysis material answering in photocatalytic degradation of dye waste water
With.
Further preferably, described spherical AgInS2/Bi2S3Heterojunction photocatalysis material is in photocatalytic degradation rhodamine B
Application.
The present invention synthesizes spherical AgInS using hydro-thermal method and ion-exchange2/Bi2S3Heterojunction photocatalysis material, can be with
The separation in electronics and hole is effectively facilitated, so as to improve mutual photocatalysis efficiency, building-up process technique is simple, environmental protection,
It is adapted to large-scale production, is expected to produce good social and economic benefit.
Brief description of the drawings
Fig. 1 is AgInS made from the embodiment of the present invention 12/Bi2S3The FESEM figures of heterojunction photocatalysis material；
Fig. 2 is AgInS made from the embodiment of the present invention 12/Bi2S3Heterojunction photocatalysis material UV-Vis DRS collection of illustrative plates；
Fig. 3 is AgInS made from the embodiment of the present invention 12/Bi2S3Heterojunction photocatalysis material XRD spectrum；
Fig. 4 is AgInS made from the embodiment of the present invention 12/Bi2S3Heterojunction photocatalysis material is under visible light illumination to rhodamine
B ultraviolet-visible absorption spectroscopy change curve.
Embodiment
The above to the present invention is described in further details by the following examples, but this should not be interpreted as to this
The scope for inventing above-mentioned theme is only limitted to following embodiment, and all technologies realized based on the above of the present invention belong to this hair
Bright scope.
Embodiment 1
Weigh 0.2g polyvinylpyrrolidones（PVP）5mL ethanol, 5mL glacial acetic acids and 15mL are dissolved in the nitric hydrate bismuths of 1mmol five
In the mixed solution of deionized water, 15min is stirred at room temperature and obtains solution A, then takes 0.5mmol Disodium tungstate (Na2WO4) dihydrates to be dissolved in
Solution B is obtained in 10mL deionized waters, solution B is slowly added into solution A in the state of stirring, 30min is again stirring for
Ensure that reaction reagent is well mixed, finally pour into mixed solution in the reactor that liner is polytetrafluoroethylene (PTFE) in 180 DEG C of reactions
3h, is cooled to room temperature, and precipitation is washed for several times with deionized water and absolute ethyl alcohol, transfers to dry in 60 DEG C in vacuum drying chamber
Dry 10h obtains spherical Bi2WO6；Take the spherical Bi of the above-mentioned preparations of 0.2563g2WO6It is scattered in deionized water, sequentially adds
0.008mL mercaptopropionic acids, 0.052g AgNO3、0.092g In(NO3)3With 0.1304g thioacetamides, add every time after raw material
2h is stirred, the pH value for adjusting mixed system with 0.02M sodium hydroxide solution after being finally uniformly mixed is 10.5, followed by
Continuous stirring 2h, is then transferred in reactor and reacts 3h in 180 DEG C, gained sediment is centrifuged, with deionized water and anhydrous second
Spherical AgInS is made after 60 DEG C of vacuum drying in alcohol washing2/Bi2S3Heterojunction photocatalysis material.
Fig. 1 is AgInS made from the present embodiment2/Bi2S3The FESEM figures of heterojunction photocatalysis material.Can from figure
Go out sample by AgInS2Nanoparticle and Bi2S3Nanosphere is constituted, AgInS of the particle diameter between 150-200nm2Nanoparticle is deposited on
The Bi that 4 μm or so of particle diameter2S3Nanometer ball surface.
Fig. 2 is AgInS made from the present embodiment2/Bi2S3The UV-Vis DRS collection of illustrative plates of heterojunction photocatalysis material.
Fig. 3 is AgInS made from the present embodiment2/Bi2S3The XRD spectrum of heterojunction photocatalysis material.Can from figure
Go out（020）、（120）、（220）、（111）、（021）、（230）、（221）、（301）、（240）、（141）、（002）、（060）、
（312）Stronger diffraction maximum is occurred in that at crystal face, with Bi2S3Standard card（JCPDS 06-0333）It coincide, hetero-junctions light is urged
Change in the XRD spectrum of material except corresponding to Bi2S3Diffraction maximum outside,（120）、（200）、（002）、（121）、（201）、
（122）、（202）、（040）、（320）、（123）、（203）、（042）Place also occurs in that diffraction maximum, these parameters and AgInS2
（JCPDS 25-1328）Standard card is consistent, and it is AgInS that product made from can obtaining the present embodiment is analyzed as more than2/Bi2S3It is different
Matter knot catalysis material.
Embodiment 2
AgInS2/Bi2S3Heterojunction photocatalysis material photocatalytic degradation rhodamine B：Using 500W xenon lamps as light source, it is equipped with
420nm filter plate, which obtains the light of visible ray, i.e. wavelength less than 420nm, to be passed through, and can be effectively prevented from ultraviolet light interference, week
It is the internal quartzy cooling pit for being connected with cooling water to enclose.Experimentation is as follows：50mg samples are weighed with electronic balance, it is slow
Enter in quartz ampoule, then the rhodamine B solution that 50mL mass concentrations are 10mg/L is measured with graduated cylinder, pour into the quartz ampoule equipped with sample
Interior, ultrasonic echography 30min enables sample to be uniformly distributed, and then quartz ampoule is fixed in light-catalyzed reaction instrument.First open
Cooling water, then bubbling machine is opened, bubbling 60min reaches adsorption-desorption balance, is then turned on xenon lamp power supply, treats that light source is steady
Surely start timing, take a sample per 30min, samples taken volume is about 5mL, and the solution of taking-up is centrifuged on centrifuge,
Supernatant liquor is poured out, its absorbance is accurately measured, the degraded situation to rhodamine B is obtained, so as to evaluate the visible ray of sample
Catalytic performance.
Fig. 4 is AgInS made from embodiment 12/Bi2S3Heterojunction photocatalysis material is degraded rhodamine under visible light illumination
B ultraviolet-visible absorption spectroscopy change curve.As seen from the figure, with the extension of light-catalyzed reaction time, rhodamine B exists
The intensity of maximum absorption band at 553nm gradually weakens, and illustrates the AgInS of synthesis2/Bi2S3Heterojunction photocatalysis material is to Luo Dan
Bright B has preferable Photocatalytic activity.
Embodiment above describes general principle, principal character and the advantage of the present invention, the technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, under the scope for not departing from the principle of the invention, various changes and modifications of the present invention are possible, and these changes and improvements are each fallen within
In the scope of protection of the invention.
Claims (6)
1. a kind of spherical AgInS2/Bi2S3Heterojunction photocatalysis material, it is characterised in that the spherical AgInS2/Bi2S3Hetero-junctions light
Catalysis material is by AgInS2Nanoparticle and Bi2S3Nanosphere is constituted, and wherein particle diameter is 150-200nm AgInS2Nanoparticle is deposited
In the Bi that average grain diameter is 4 μm2S3Nanometer ball surface.
2. the spherical AgInS described in a kind of claim 12/Bi2S3The preparation method of heterojunction photocatalysis material, it is characterised in that
Concretely comprise the following steps：
（1）Spherical Bi2WO6Preparation, polyvinylpyrrolidone and five nitric hydrate bismuths are dissolved in ethanol, glacial acetic acid and deionization
In the mixed solution of water, it is stirred at room temperature after 15min and obtains solution A, takes Disodium tungstate (Na2WO4) dihydrate to be dissolved in deionized water and obtain molten
Liquid B, solution B under stirring be added in solution A and be well mixed, and mixed solution is transferred in reactor in 180
DEG C reaction 3h, be cooled to room temperature, by precipitation water and absolute ethyl alcohol cyclic washing, then obtain lamina stack in 60 DEG C of vacuum drying
Long-pending spherical Bi2WO6；
（2）Spherical AgInS2/Bi2S3The preparation of heterojunction photocatalysis material, by spherical Bi2WO6It is scattered in deionized water, then according to
Secondary addition mercaptopropionic acid, AgNO3、In(NO3)3And thioacetamide, adjusted and mixed with sodium hydroxide solution after being uniformly mixed
The pH value of solution is 10.5, is further continued for being transferred to after being uniformly mixed in reactor and reacts 3h in 180 DEG C, then precipitates gained
Thing is centrifuged, and is washed with deionized water and absolute ethyl alcohol and spherical AgInS is made after 60 DEG C of vacuum drying2/Bi2S3It is heterogeneous
Tie catalysis material.
3. spherical AgInS according to claim 22/Bi2S3The preparation method of heterojunction photocatalysis material, its feature exists
In：Step（1）Described in five nitric hydrate bismuths and Disodium tungstate (Na2WO4) dihydrate molar ratio be 2:1, the ethanol, glacial acetic acid and
The volume ratio of deionized water is 1:1:3, the charge ratio of the five nitric hydrates bismuth and ethanol is 1mmol:5mL, the poly- second
The charge ratio of alkene pyrrolidone and five nitric hydrate bismuths is 0.2g:1mmol.
4. spherical AgInS according to claim 22/Bi2S3The preparation method of heterojunction photocatalysis material, its feature exists
In：Step（2）Described in Bi2WO6、AgNO3、In(NO3)3Molar ratio with thioacetamide is 1.2:1:1:5.6.
5. the spherical AgInS described in claim 12/Bi2S3Heterojunction photocatalysis material is in photocatalytic degradation of dye waste water
Using.
6. the spherical AgInS described in claim 12/Bi2S3Heterojunction photocatalysis material answering in photocatalytic degradation rhodamine B
With.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108479812A (en) * | 2018-04-11 | 2018-09-04 | 大连民族大学 | A kind of AgInS2/Bi2WO6The preparation method and application of hetero-junctions nanometer sheet |
| CN108845006A (en) * | 2018-03-01 | 2018-11-20 | 南昌航空大学 | A kind of preparation method of modified electrode material sulphur indiumization silver |
| CN110743575A (en) * | 2019-11-21 | 2020-02-04 | 南昌航空大学 | AgIn with adsorption-photocatalysis synergistic effect5S8/SnS2Method for preparing solid solution catalyst |
| CN115569654A (en) * | 2022-01-26 | 2023-01-06 | 浙江理工大学 | Catalyst for generating ethylene by photo-thermal catalytic reduction of carbon dioxide and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108845006A (en) * | 2018-03-01 | 2018-11-20 | 南昌航空大学 | A kind of preparation method of modified electrode material sulphur indiumization silver |
| CN108845006B (en) * | 2018-03-01 | 2022-05-13 | 南昌航空大学 | Method for using silver indium sulfide modified glassy carbon electrode for 4-NP detection |
| CN108479812A (en) * | 2018-04-11 | 2018-09-04 | 大连民族大学 | A kind of AgInS2/Bi2WO6The preparation method and application of hetero-junctions nanometer sheet |
| CN108479812B (en) * | 2018-04-11 | 2020-04-14 | 大连民族大学 | AgInS2/Bi2WO6Preparation method and application of heterojunction nanosheet |
| CN110743575A (en) * | 2019-11-21 | 2020-02-04 | 南昌航空大学 | AgIn with adsorption-photocatalysis synergistic effect5S8/SnS2Method for preparing solid solution catalyst |
| CN110743575B (en) * | 2019-11-21 | 2021-10-26 | 南昌航空大学 | AgIn with adsorption-photocatalysis synergistic effect5S8/SnS2Method for preparing solid solution catalyst |
| CN115569654A (en) * | 2022-01-26 | 2023-01-06 | 浙江理工大学 | Catalyst for generating ethylene by photo-thermal catalytic reduction of carbon dioxide and preparation method thereof |
| CN115569654B (en) * | 2022-01-26 | 2023-07-21 | 浙江理工大学 | Catalyst for photo-thermal catalytic reduction of carbon dioxide to generate ethylene and preparation method thereof |
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