CN106622208A - Preparation method of quadrangular bismuth vanadate/graphene composite photocatalyst - Google Patents
Preparation method of quadrangular bismuth vanadate/graphene composite photocatalyst Download PDFInfo
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- CN106622208A CN106622208A CN201611000832.9A CN201611000832A CN106622208A CN 106622208 A CN106622208 A CN 106622208A CN 201611000832 A CN201611000832 A CN 201611000832A CN 106622208 A CN106622208 A CN 106622208A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 36
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 32
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 229910052797 bismuth Inorganic materials 0.000 title claims abstract description 11
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 title abstract 4
- 238000003756 stirring Methods 0.000 claims abstract description 38
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 229910003206 NH4VO3 Inorganic materials 0.000 claims abstract description 11
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000002351 wastewater Substances 0.000 claims abstract description 7
- 238000013019 agitation Methods 0.000 claims description 12
- 238000002604 ultrasonography Methods 0.000 claims description 10
- 238000004042 decolorization Methods 0.000 claims description 8
- 230000005855 radiation Effects 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- DZXKSFDSPBRJPS-UHFFFAOYSA-N tin(2+);sulfide Chemical compound [S-2].[Sn+2] DZXKSFDSPBRJPS-UHFFFAOYSA-N 0.000 claims 1
- 239000013078 crystal Substances 0.000 abstract description 3
- 230000031700 light absorption Effects 0.000 abstract description 3
- 230000001699 photocatalysis Effects 0.000 abstract description 3
- 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 abstract description 2
- 229940043267 rhodamine b Drugs 0.000 abstract description 2
- 239000000243 solution Substances 0.000 abstract 7
- 239000011259 mixed solution Substances 0.000 abstract 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 230000000593 degrading effect Effects 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 235000019441 ethanol Nutrition 0.000 abstract 1
- 230000004298 light response Effects 0.000 abstract 1
- 238000003760 magnetic stirring Methods 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- -1 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 150000001336 alkenes Chemical class 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 6
- 239000004575 stone Substances 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 229910002915 BiVO4 Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000862 absorption spectrum Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 102100024325 Contactin-3 Human genes 0.000 description 1
- 101710107712 Contactin-3 Proteins 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- DPSWNBLFKLUQTP-UHFFFAOYSA-N bismuth vanadium Chemical compound [V].[Bi] DPSWNBLFKLUQTP-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- WQEVDHBJGNOKKO-UHFFFAOYSA-K vanadic acid Chemical compound O[V](O)(O)=O WQEVDHBJGNOKKO-UHFFFAOYSA-K 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
- 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
- B01J23/20—Vanadium, niobium or tantalum
- B01J23/22—Vanadium
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
-
- 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
- C02F2101/34—Organic compounds containing oxygen
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- 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
- C02F2101/36—Organic compounds containing halogen
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- 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
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The invention discloses a preparation method of a quadrangular bismuth vanadate/graphene composite photocatalyst. The preparation method comprises the specific steps that oxidized graphene is dispersed in an HNO3 solution, then Bi(NO3)3.5H2O is added to the solution, magnetic stirring is performed till complete dissolution is achieved, and a solution A is obtained; NH4VO3 is dissolved in water under ultrasonic condition to prepared a solution B; the solution B is added to the solution A, stirring continues for 30 minutes, pH of the mixed solution is regulated with a NaOH solution to reach 3, stirring continues for 30 minutes, then the mixed solution is transferred to a polytetrafluoroethylene reaction kettle, reaction is performed at the temperature of 180 DEG C for 18 hours, natural cooling is performed to reach room temperature after reaction is completed, filtration and separation are performed, three times of washing are performed with water and ethyl alcohol, drying is performed, and finally calcination is performed at the temperature of 500 DEG C for 4 hours to obtain the quadrangular bismuth vanadate/graphene composite photocatalyst. The prepared quadrangular bismuth vanadate/graphene composite photocatalyst has good crystal form and light absorption properties, also has the photocatalytic performance of visible light response and has the performance of efficiently degrading a rhodamine B dye wastewater in visible light.
Description
Technical field
The invention belongs to the synthesis technical field of composite photocatalyst material, and in particular to a kind of four angle-style vitriol acid bismuth/graphite
The preparation method of alkene composite photo-catalyst.
Background technology
Waste water from dyestuff is one of typical difficult for biological degradation organic wastewater, is given birth to difficulty greatly with basicity height, color and luster depth, stink
The features such as thing is degraded, severe contamination water body, and adopt conventional processing method effect undesirable.In recent years, semi-conducting material light
Catalytic oxidation technologies receive publicity increasingly, and the semiconductor light-catalyst that can be excited under visible light is more favored.It is wherein single
Oblique crystal formation BiVO4It is novel visible semiconductor light-catalyst developed in recent years, energy gap is 2.4eV.Quilt at present
Widely studied single-phase semiconductor nano photocatalyst powder suspension system, exist nanoparticle easily condense, easy in inactivation, utilization
The defect such as efficiency is low and absorption spectrum ranges are narrow, seriously limits the industrial applications of nano photo catalyzed oxidation.Therefore it is now negative
Load type, highly active compound nanometer photocatalyst become study hotspot.Wherein Graphene is led as star's material with excellent
Electrically, big specific surface area and the features such as higher mechanical strength.Excellent electric conductivity makes it easily capture light induced electron and fill
When the medium of electron transfer, the compound of carrier is effectively prevented；Big specific surface area shows the absorption strong to pollutant
Effect；Higher mechanical strength provides a two-dimensional surface structure for the deposition of catalyst；Simultaneously Graphene is that a kind of energy gap is
Zero semimetal, by modification its energy gap is adjusted, and can not only realize broadband light absorbs, and electric charge can also be made to exist
More match with catalyst in transfer process, improve its photocatalysis performance, so Graphene becomes the ideal material of load.Prepare
Graphene-based composite bismuth vanadium photocatalyst can improve light absorption, with absorption spectrum ranges width, stable performance, nothing
Poison, cost effective, can be applied to the degraded of difficult for biological degradation organic pollution, with stronger market application foreground.
The content of the invention
Present invention solves the technical problem that there is provided one kind being capable of effective rhodamine B degradation（RhB）The four of waste water from dyestuff
The preparation method of angle-style vitriol acid bismuth/graphene composite photocatalyst.
The present invention adopts the following technical scheme that a kind of four angle-style vitriol acid bismuth/Graphene is combined to solve above-mentioned technical problem
The preparation method of photocatalyst, it is characterised in that concretely comprise the following steps：0.0162-0.081g graphene oxides are dispersed in into 15mL to rub
Your concentration is the HNO of 1mol/L3In solution, ultrasonic 2h, then magnetic agitation, then by 2.425g Bi (NO3)3·5H2O is added to
In above-mentioned solution, magnetic agitation is to being completely dissolved obtained solution A；By 0.585g NH4VO3During 40mL water is dissolved under ultrasound condition
Obtained solution B；Under conditions of stirring, solution B is added in solution A, continues to stir 30min, be 2mol/ with molar concentration
The NaOH solution of L adjusts the pH=3 of mixed liquor, continues to stir 30min, subsequently mixed liquor is proceeded in ptfe autoclave,
18h is reacted in 180 DEG C, room temperature is naturally cooled to after the completion of reaction, be separated by filtration, respectively washed three times with water and ethanol, be then dried,
Most calcine 4h after 500 DEG C and four angle-style pucherites/graphene composite photocatalyst is obtained.
Further preferably, the preparation method of described four angle-style vitriol acid bismuth/graphene composite photocatalyst, it is characterised in that
Concretely comprise the following steps：0.0486g graphene oxides are dispersed in into the HNO that 15mL molar concentrations are 1mol/L3In solution, ultrasonic 2h,
Then magnetic agitation, then by 2.425g Bi (NO3)3·5H2O is added in above-mentioned solution, and magnetic agitation is prepared to being completely dissolved
Solution A；By 0.585g NH4VO3Obtained solution B in 40mL water is dissolved under ultrasound condition；Under conditions of stirring, by solution B
In being added to solution A, continue to stir 30min, with the NaOH solution that molar concentration is 2mol/L the pH=3 of mixed liquor is adjusted, continue
Stirring 30min, subsequently proceeds to mixed liquor in ptfe autoclave, and 18h is reacted in 180 DEG C, naturally cold after the completion of reaction
But to room temperature, it is separated by filtration, is respectively washed three times with water and ethanol, be then dried, most calcines 4h after 500 DEG C and four angle-style vanadic acid are obtained
Bismuth/graphene composite photocatalyst, through 3h 500W Xe lamp radiation of visible light, the four angle-style pucherite/Graphene complex light
Catalyst is 89.1% to the percent of decolourization of RhB in rhdamine B waste water.
Obtained four angle-style pucherites/graphene composite photocatalyst of the invention has preferable crystal formation and light absorption
Can, and with visible light-responded photocatalysis performance, under visible light with the property of efficient degradation rhdamine B waste water
Energy.
Description of the drawings
Fig. 1 is four angle-style BiVO4（BIV）And BiVO4/RGO（BIG-3%）The X-ray diffraction spectrogram of composite photo-catalyst.
Specific embodiment
The above of the present invention is described in further details by the following examples, but this should not be interpreted as this
The scope for inventing above-mentioned theme is only limitted to below example, and all technologies realized based on the above of the present invention belong to this
Bright scope.
Embodiment 1
By 5mmol Bi (NO3)3·5H2O is dissolved in the HNO that 15mL molar concentrations are 1mol/L3Obtained solution A in solution；Will
5mmol NH4VO3Obtained solution B in 40mL water is dissolved under ultrasound condition；Under conditions of stirring, solution B is added to into solution
In A, continue to stir 30min, with the NaOH solution that molar concentration is 2mol/L the pH=3 of mixed liquor adjusted, continue to stir 30min,
Subsequently mixed liquor is proceeded in ptfe autoclave, in 180 DEG C 18h is reacted, room temperature, mistake are naturally cooled to after the completion of reaction
Filter is separated, and is respectively washed three times with water and ethanol, is then dried, and most calcines 4h after 500 DEG C and four angle-style monoclinic form pucherites are obtained
Visible light catalyst, is labeled as BIV.Through 3h 500W Xe lamp radiation of visible light, the four angle-style monoclinic form pucherite light is urged
Agent is 73.2% to the percent of decolourization of RhB.
Embodiment 2
0.0162g graphene oxides are scattered in into the HNO that 15mL molar concentrations are 1mol/L3In solution, ultrasonic 2h, then magnetic force
Stirring, then by 2.425g Bi (NO3)3·5H2O is added in above-mentioned solution, and magnetic agitation is to being completely dissolved obtained solution A；Will
0.585g NH4VO3Obtained solution B in 40mL water is dissolved under ultrasound condition；Under conditions of stirring, solution B is added to molten
In liquid A, continue to stir 30min, with the NaOH solution that molar concentration is 2mol/L the pH=3 of mixed liquor is adjusted, continue to stir
30min, subsequently proceeds to mixed liquor in ptfe autoclave, and in 180 DEG C 18h is reacted, and naturally cools to after the completion of reaction
Room temperature, is separated by filtration, and is respectively washed three times with water and ethanol, is then dried, most after 500 DEG C calcine 4h be obtained four angle-style pucherites/
Graphene composite photocatalyst, is labeled as BIG-1%.Through 3h 500W Xe lamp radiation of visible light, the four angle-style pucherite/stone
Black alkene composite photo-catalyst is 80.5% to the percent of decolourization of RhB.
Embodiment 3
0.0486g graphene oxides are dispersed in into the HNO that 15mL molar concentrations are 1mol/L3In solution, ultrasonic 2h, then magnetic force
Stirring, then by 2.425g Bi (NO3)3·5H2O is added in above-mentioned solution, and magnetic agitation is to being completely dissolved obtained solution A；Will
0.585g NH4VO3Obtained solution B in 40mL water is dissolved under ultrasound condition；Under conditions of stirring, solution B is added to molten
In liquid A, continue to stir 30min, with the NaOH solution that molar concentration is 2mol/L the pH=3 of mixed liquor is adjusted, continue to stir
30min, subsequently proceeds to mixed liquor in ptfe autoclave, and in 180 DEG C 18h is reacted, and naturally cools to after the completion of reaction
Room temperature, is separated by filtration, and is respectively washed three times with water and ethanol, is then dried, most after 500 DEG C calcine 4h be obtained four angle-style pucherites/
Graphene composite photocatalyst, is labeled as BIG-3%.Through 3h 500W Xe lamp radiation of visible light, the four angle-style pucherite/stone
Black alkene composite photo-catalyst is 89.1% to the percent of decolourization of RhB.
Embodiment 4
0.081g graphene oxides are dispersed in into the HNO that 15mL molar concentrations are 1mol/L3In solution, ultrasonic 2h, then magnetic force
Stirring, then by 2.425g Bi (NO3)3·5H2O is added in above-mentioned solution, and magnetic agitation is to being completely dissolved obtained solution A；Will
0.585g NH4VO3Obtained solution B in 40mL water is dissolved under ultrasound condition；Under conditions of stirring, solution B is added to molten
In liquid A, continue to stir 30min, with the NaOH solution that molar concentration is 2mol/L the pH=3 of mixed liquor is adjusted, continue to stir
30min, subsequently proceeds to mixed liquor in ptfe autoclave, and in 180 DEG C 18h is reacted, and naturally cools to after the completion of reaction
Room temperature, is separated by filtration, and is respectively washed three times with water and ethanol, is then dried, most after 500 DEG C calcine 4h be obtained four angle-style pucherites/
Graphene composite photocatalyst, is labeled as BIG-5%.Through 3h 500W Xe lamp radiation of visible light, the four angle-style pucherite/stone
Black alkene composite photo-catalyst is 76.8% to the percent of decolourization of RhB.
Embodiment 5
0.1296g graphene oxides are dispersed in into the HNO that 15mL molar concentrations are 1mol/L3In solution, ultrasonic 2h, then magnetic force
Stirring, then by 2.425g Bi (NO3)3·5H2O is added in above-mentioned solution, and magnetic agitation is to being completely dissolved obtained solution A；Will
0.585g NH4VO3Obtained solution B in 40mL water is dissolved under ultrasound condition；Under conditions of stirring, solution B is added to molten
In liquid A, continue to stir 30min, with the NaOH solution that molar concentration is 2mol/L the pH=3 of mixed liquor is adjusted, continue to stir
30min, subsequently proceeds to mixed liquor in ptfe autoclave, and in 180 DEG C 18h is reacted, and naturally cools to after the completion of reaction
Room temperature, is separated by filtration, and is respectively washed three times with water and ethanol, is then dried, most after 500 DEG C calcine 4h be obtained four angle-style pucherites/
Graphene composite photocatalyst, is labeled as BIG-8%.Through 3h 500W Xe lamp radiation of visible light, the four angle-style pucherite/stone
Black alkene composite photo-catalyst is 71.9% to the percent of decolourization of RhB.
Embodiment 6
0.1944g graphene oxides are dispersed in into the HNO that 15mL molar concentrations are 1mol/L3In solution, ultrasonic 2h, then magnetic force
Stirring, then by 2.425g Bi (NO3)3·5H2O is added in above-mentioned solution, and magnetic agitation is to being completely dissolved obtained solution A；Will
0.585g NH4VO3Obtained solution B in 40mL water is dissolved under ultrasound condition；Under conditions of stirring, solution B is added to molten
In liquid A, continue to stir 30min, with the NaOH solution that molar concentration is 2mol/L the pH=3 of mixed liquor is adjusted, continue to stir
30min, subsequently proceeds to mixed liquor in ptfe autoclave, and in 180 DEG C 18h is reacted, and naturally cools to after the completion of reaction
Room temperature, is separated by filtration, and is respectively washed three times with water and ethanol, is then dried, most after 500 DEG C calcine 4h be obtained four angle-style pucherites/
Graphene composite photocatalyst, is labeled as BIG-12%.Through 3h 500W Xe lamp radiation of visible light, the four angle-style pucherite/stone
Black alkene composite photo-catalyst is 62.3% to the percent of decolourization of RhB.
Ultimate principle, principal character and the advantage of the present invention is embodiment above describes, the technical staff of the industry should
Understand, the present invention is not restricted to the described embodiments, the original for simply illustrating the present invention described in above-described embodiment and description
Reason, under the scope without departing from the principle of the invention, the present invention also has various changes and modifications, and these changes and improvements each fall within
In the scope of protection of the invention.
Claims (2)
1. the preparation method of a kind of four angle-style vitriol acid bismuth/graphene composite photocatalyst, it is characterised in that concretely comprise the following steps：Will
0.0162-0.081g graphene oxides are dispersed in the HNO that 15mL molar concentrations are 1mol/L3In solution, ultrasonic 2h, then magnetic force
Stirring, then by 2.425g Bi (NO3)3·5H2O is added in above-mentioned solution, and magnetic agitation is to being completely dissolved obtained solution A；Will
0.585g NH4VO3Obtained solution B in 40mL water is dissolved under ultrasound condition；Under conditions of stirring, solution B is added to molten
In liquid A, continue to stir 30min, with the NaOH solution that molar concentration is 2mol/L the pH=3 of mixed liquor is adjusted, continue to stir
30min, subsequently proceeds to mixed liquor in ptfe autoclave, and in 180 DEG C 18h is reacted, and naturally cools to after the completion of reaction
Room temperature, is separated by filtration, and is respectively washed three times with water and ethanol, is then dried, most after 500 DEG C calcine 4h be obtained four angle-style pucherites/
Graphene composite photocatalyst.
2. the preparation method of stannous sulfide/graphene composite photocatalyst according to claim 1, it is characterised in that concrete
Step is：0.0486g graphene oxides are dispersed in into the HNO that 15mL molar concentrations are 1mol/L3In solution, ultrasonic 2h, then
Magnetic agitation, then by 2.425g Bi (NO3)3·5H2O is added in above-mentioned solution, and magnetic agitation is to being completely dissolved obtained solution
A；By 0.585g NH4VO3Obtained solution B in 40mL water is dissolved under ultrasound condition；Under conditions of stirring, solution B is added
To in solution A, continue to stir 30min, with the NaOH solution that molar concentration is 2mol/L the pH=3 of mixed liquor is adjusted, continue to stir
30min, subsequently proceeds to mixed liquor in ptfe autoclave, and in 180 DEG C 18h is reacted, and naturally cools to after the completion of reaction
Room temperature, is separated by filtration, and is respectively washed three times with water and ethanol, is then dried, most after 500 DEG C calcine 4h be obtained four angle-style pucherites/
Graphene composite photocatalyst, through 3h 500W Xe lamp radiation of visible light, the four angle-style pucherite/Graphene composite photocatalyst
Agent is 89.1% to the percent of decolourization of RhB in rhdamine B waste water.
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| CN110237810A (en) * | 2019-05-21 | 2019-09-17 | 河南师范大学 | A kind of preparation method of the bismuth oxychloride of synergistic sorption-photocatalytic degradation terramycin wastewater/graphene three-dimensional aeroge |
| CN112569924A (en) * | 2020-12-28 | 2021-03-30 | 江苏先丰纳米材料科技有限公司 | Preparation method of star-shaped bismuth vanadate/borane composite material |
| CN113559841A (en) * | 2021-08-12 | 2021-10-29 | 台州学院 | Nano CuO/GO/BiVO4Heterogeneous heterojunction photocatalyst, preparation method and application thereof |
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| CN103263910A (en) * | 2013-05-20 | 2013-08-28 | 聊城大学 | Bismuth vanadate-graphene composite photocatalyst, and preparation and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110237810A (en) * | 2019-05-21 | 2019-09-17 | 河南师范大学 | A kind of preparation method of the bismuth oxychloride of synergistic sorption-photocatalytic degradation terramycin wastewater/graphene three-dimensional aeroge |
| CN112569924A (en) * | 2020-12-28 | 2021-03-30 | 江苏先丰纳米材料科技有限公司 | Preparation method of star-shaped bismuth vanadate/borane composite material |
| CN112569924B (en) * | 2020-12-28 | 2023-02-14 | 江苏先丰纳米材料科技有限公司 | Preparation method of star-shaped bismuth vanadate/borane composite material |
| CN113559841A (en) * | 2021-08-12 | 2021-10-29 | 台州学院 | Nano CuO/GO/BiVO4Heterogeneous heterojunction photocatalyst, preparation method and application thereof |
| CN113559841B (en) * | 2021-08-12 | 2023-10-31 | 台州学院 | Nano CuO/GO/BiVO 4 Multiphase heterojunction photocatalyst, preparation method and application thereof |
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