CN107890877A - A kind of Bi3O4Cl/CdS composites and preparation method and purposes - Google Patents
A kind of Bi3O4Cl/CdS composites and preparation method and purposes Download PDFInfo
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- 239000002131 composite material Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000001035 drying Methods 0.000 claims abstract description 19
- 230000004044 response Effects 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 238000002604 ultrasonography Methods 0.000 claims abstract description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 30
- 239000007787 solid Substances 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 17
- 239000002077 nanosphere Substances 0.000 claims description 11
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 8
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 abstract description 7
- 239000004065 semiconductor Substances 0.000 abstract description 7
- 239000011941 photocatalyst Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 239000004094 surface-active agent Substances 0.000 abstract description 2
- 239000000460 chlorine Substances 0.000 description 23
- MYSWGUAQZAJSOK-UHFFFAOYSA-N ciprofloxacin Chemical compound C12=CC(N3CCNCC3)=C(F)C=C2C(=O)C(C(=O)O)=CN1C1CC1 MYSWGUAQZAJSOK-UHFFFAOYSA-N 0.000 description 12
- 239000003643 water by type Substances 0.000 description 8
- 230000001699 photocatalysis Effects 0.000 description 7
- 229960003405 ciprofloxacin Drugs 0.000 description 6
- 230000003115 biocidal effect Effects 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000007146 photocatalysis Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000001027 hydrothermal synthesis Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 206010059866 Drug resistance Diseases 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 244000000010 microbial pathogen Species 0.000 description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- AHUBLGVDRKDHAT-UHFFFAOYSA-N [Bi]=O.[Cl] Chemical compound [Bi]=O.[Cl] AHUBLGVDRKDHAT-UHFFFAOYSA-N 0.000 description 1
- 208000007502 anemia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 230000008859 change Effects 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
- 238000002242 deionisation method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002496 gastric effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003907 kidney function Effects 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001243 protein synthesis Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 230000014616 translation Effects 0.000 description 1
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- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
- B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- 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
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
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- B01J37/038—Precipitation; Co-precipitation to form slurries or suspensions, e.g. a washcoat
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/10—Heat treatment in the presence of water, e.g. steam
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- C02F2103/343—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the pharmaceutical industry, e.g. containing antibiotics
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The invention belongs to semiconductor catalyst preparing technical field.Refer in particular to a kind of Bi3O4Cl/CdS composites and preparation method and purposes.CdS ultrasonic disperses are obtained into solution A in ethanol, the Bi that step 2 is prepared3O4Cl is dissolved in PVP solution and obtains solution B, after solution A and solution B are mixed, is transferred in reactor hydro-thermal 6h at 160 DEG C；Question response kettle is cooled to room temperature, is washed with water and ethanol, and drying obtains 50wt.%Bi3O4Cl/CdS composites.The present invention cleverly effectively combines two kinds of material tights, effectively overcomes the defects of catalyst easily comes off in ultrasound and course of reaction compared to existing technology using PVP surfactants.As excited by visible light Bi3O4During Cl/CdS composite photo-catalysts, the pollutant in water body is degraded using the redox ability of photo-generate electron-hole.
Description
Technical field
The invention belongs to semiconductor catalyst preparing technical field, and Bi is synthesized using hydro-thermal method3O4Cl/CdS composite photocatalysts
Agent, decline solution Ciprofloxacin for visible ray.
Background technology
At present, developing rapidly with medical science, new antibiotic engenders, can not only suppress or kill some
Pathogenic microorganism, the protein synthesis of pathogenic microorganism is influenceed, destroys its cell membrane, same mechanism can suppress cancer cell
Propagation or metabolism, prominent contribution is made that for the medical industry of the mankind.Although the extensive use of antibiotic is undoubtedly to China
Medical treatment and the development of agricultural avocation play a positive role, but also bring harm to our health simultaneously, such as influence liver with
Renal function, cause gastrointestinal reaction and alpastic anemia etc..And for antibiotic when to resisting pathogenic microbes, cause of disease is micro-
For biology in order to hide drug attack, part produces variation, has drug resistance, produces antibody-resistant bacterium, once infect this drug resistance
Bacterium, the mankind will feel simply helpless, this will serious threat to the mankind life and health.Therefore, elimination antibiotic residue, which is brought, asks
Topic has been researcher significant problem in the urgent need to address.
Because the waste water containing antibiotic is a kind of higher organic wastewater of concentration, its basicity and colourity all compares
Height, the toxicant contained is also relatively more and is difficult to degrade.By traditional method, such as：Membrane filtration, absorption and electrochemistry side
Method etc. is difficult to be removed.And at this stage, by the use of solar energy as the energy, using photocatalysis technology degradable organic pollutant because having
The advantages that reaction condition is gentle, non-toxic inexpensive, strong stability becomes research heat in recent years.However, in solar spectrum, it is purple
Outer light only accounts for 5%, and the ratio of visible ray is up to 43%, therefore, develop can the visible light-responded of practical application partly lead
Body photochemical catalyst is the hot issue of current photocatalysis research field.
For CdS as a kind of metal semiconductor catalyst, its energy gap is 2.42eV, due to its good catalytic activity,
The features such as cheap cost, gradually causes the favor of researcher in photocatalysis field.Further, since its excellent physics
Property and photoelectric characteristic, there is quite varied application in many fields.But single CdS can urge the light under light
It is unsatisfactory to change activity, this be probably because CdS is limited to the absorption region of visible ray, and photo-generated carrier be easier it is multiple
Close, cause photocatalytic activity low.Researcher has done many work based on the modification to CdS, for example doping, structure are set
Meter, carried metal and other semiconductors etc..In these methods, the semiconductor structure compound system right and wrong of exploitation value conduction band matching
Normal effective measures.On the other hand, chlorine oxygen bismuth (Bi3O4Cl), found as a kind of important metal oxide, now research
Bi3O4Cl forms hetero-junctions with semiconductors coupling can significantly strengthen photocatalysis performance.However, up to the present do not have also
Bi3O4Cl and the preparation of CdS composites and the report of photocatalytic degradation antibioticses waste water.
The content of the invention
The invention belongs to technical field of semiconductor material preparation, and Bi is synthesized using hydro-thermal method3O4Cl/CdS composite photocatalysts
Agent, decline solution Ciprofloxacin for visible ray.
A kind of visible light-responded Bi provided by the invention3O4The preparation method of Cl/CdS composites, it is characterised in that bag
Include following steps：
Step 1：The preparation of CdS nanospheres
By Cd (Ac)2·2H2O and thiocarbamide, which are added in deionized water, to be stirred, and obtained aaerosol solution is transferred to reactor
Interior, the hydro-thermal 5h under conditions of 140 DEG C, question response kettle is cooled to room temperature, washed with water and ethanol, and drying obtains CdS solid powder
End is CdS nanospheres.
Described Cd (Ac)2·2H2O, thiocarbamide and deionized water are by quality ratio：0.426：3.0448：40.
Described mixing time is 30min.
Step 2：Bi3O4The preparation of Cl nanometer sheets
First by Bi (NO3)3·5H2O, which is dispersed in ethylene glycol, stirs ultrasound, obtains solution A.Secondly by NH4Cl is dissolved in
Solution B is obtained in ionized water, solution B is slowly added in above-mentioned solution A, is transferred to after generating white turbid in reactor, 160 DEG C
Hydro-thermal 12h；Question response kettle is cooled to room temperature, is washed with water and ethanol, and drying obtains solid powder C.Finally, by solid powder C
In Muffle furnace, 500 DEG C of roasting 5h are warming up to 5 DEG C/min of heating rate and obtain Bi3O4Cl nanometer sheets.
Bi (the NO3)3·5H2O and the mass volume ratio of ethylene glycol are：0.485g：10mL, the NH4Cl and deionization
The mass ratio of water is：0.018：25；The volume ratio of the ethylene glycol and deionized water is 2:5.
Step 3：Bi3O4The preparation of Cl/CdS composites
The CdS ultrasonic disperses that step 1 prepares are obtained into solution A in ethanol, the Bi that step 2 is prepared3O4Cl dissolves
Solution B is obtained in PVP solution, after solution A and solution B are mixed, is transferred in reactor hydro-thermal 6h at 160 DEG C；Treat
Reactor is cooled to room temperature, is washed with water and ethanol, and drying obtains 50wt.%Bi3O4Cl/CdS composites.
The CdS and the mass volume ratio of ethanol are：0.1g：10mL；The Bi3O4Cl and PVP solution mass volume ratio
For 0.05：1mL, PVP solution concentration are 0.2g/mL；The volume ratio of the ethanol and PVP solution is 10:1.
The time of the mixing is 30min.
The present invention cleverly effectively makes two kinds of material tight knots compared to existing technology using PVP surfactants
Close, effectively overcome the defects of catalyst easily comes off in ultrasound and course of reaction.As excited by visible light Bi3O4Cl/CdS
During composite photo-catalyst, the pollutant in water body is degraded using the redox ability of photo-generate electron-hole.
Beneficial effect
Bi is synthesized using hydro-thermal method3O4Cl/CdS composite photo-catalysts, Ciprofloxacin of degrading under visible light show excellent
Photocatalytic activity；Present invention process is simple, and reaction cost is low, is easy to produce in batches, meets environment-friendly requirement.
Brief description of the drawings
Fig. 1 is Bi3O4Cl,CdS,Bi3O4The XRD diffraction spectrograms of Cl/CdS composites.Can from XRD test result
To find out pure Bi3O4Cl and CdS diffraction maximum and standard diagram (JCPDS, No.36-0760, No 80-0006) it is corresponding.
Bi3O4In Cl/CdS compounds, we are both it is observed that Bi3O4Cl characteristic peak, it can also be observed that CdS characteristic peak, therefore I
Bi can be illustrated by XRD3O4The successful preparation of Cl/CdS composite photo-catalysts.
Fig. 2 is Bi3O4Cl,CdS,Bi3O4The scanning figure of Cl/CdS composites.It can be seen that prepared by step 1 from Fig. 2 a
CdS patterns are nanosphere of uniform size.Fig. 2 b can significantly observe Bi prepared by step 23O4Cl is two-dimensional sheet knot
Structure.Fig. 2 c-d are Bi3O4The scanning figure of Cl/CdS composites.We can intuitively observe that CdS nanospheres are grown
Bi3O4Contact with each other in Cl nanometer sheets and closely.The separation of photo-generated carrier is favorably used in this interaction, is further improved
Photocatalytic activity.
Fig. 3 shows Bi3O4Cl, CdS, 30wt%Bi3O4Cl/CdS, 50wt%Bi3O4Cl/CdS, 70wt%Bi3O4Cl/CdS
And 100wt%Bi3O4Cl/CdS photochemical catalysts are in the pass of degradation time-degradation rate of visible light photocatalytic degradation ciprofloxacin solution
System's figure.It can be seen that Ciprofloxacin be able to can be stabilized in radiation of visible light in itself, pure CdS and Bi3O4Cl exists
The lower 120 minutes lower degradation rates of visible ray only have 58% and 17%, but Bi3O4Cl/g-C3N4Composite can significantly improve light
Catalytic effect.As load 50%Bi3O4During Cl, Ciprofloxacin activity highest of degrading, lower degradation rate can reach within 120 minutes
81.2%.
Embodiment
Embodiment 1
Step 1：The preparation of CdS nanospheres
By 0.426g Cd (Ac)2·2H2O and 3.0448g thiocarbamides are added in 40mL deionized waters and are sufficiently stirred 30min
Afterwards, the aaerosol solution obtained is transferred in 50mL reactors, and hydro-thermal 5h. question response kettles are cooled to room temperature under conditions of 140 DEG C,
Sample is washed with water and ethanol, drying obtains CdS solid powders.
Step 2：Bi3O4The preparation of Cl nanometer sheets
First by 0.485g Bi (NO3)3·5H2O ultrasonic disperses stir ultrasonic 10min in 10mL ethylene glycol, obtain molten
Liquid A.Secondly by 0.018g NH4Cl, which is dissolved in 25mL deionized waters, obtains solution B, and solution B is slowly added in above-mentioned solution A,
Generate white turbid to be transferred in 50mL reactors, 160 DEG C of hydro-thermal 12h.Question response kettle is cooled to room temperature, and sample is washed with water and ethanol,
Drying obtains solid powder C.Finally, solid powder C is calcined 5h under 500 DEG C of Muffle furnaces, 5 DEG C/min of heating rate.Finally
Obtain Bi3O4Cl nanometer sheets.
Step 3：Bi3O4The preparation of Cl/CdS composites
The 0.1g CdS ultrasonic disperses that step 1 prepares are obtained into solution A in 10mL ethanol, step 2 is prepared
0.03g Bi3O4Cl is dissolved in 1mL (0.2g/mL) PVP and obtains solution B, after solution A and solution B are mixed into 30min,
Hydro-thermal 6h at 160 DEG C is transferred among 50mL reactors.Question response kettle is cooled to room temperature, washes sample with water and ethanol, drying obtains
30wt.%Bi3O4Cl/CdS composites.
Embodiment 2
Step 1：The preparation of CdS nanospheres
By 0.426g Cd (Ac)2·2H2O and 3.0448g thiocarbamides are added in 40mL deionized waters and are sufficiently stirred 30min
Afterwards, the aaerosol solution obtained is transferred in 50mL reactors, and hydro-thermal 5h. question response kettles are cooled to room temperature under conditions of 140 DEG C,
Sample is washed with water and ethanol, drying obtains CdS solid powders.
Step 2：Bi3O4The preparation of Cl nanometer sheets
First by 0.485g Bi (NO3)3·5H2O ultrasonic disperses stir ultrasonic 10min in 10mL ethylene glycol, obtain molten
Liquid A.Secondly by 0.018g NH4Cl, which is dissolved in 25mL deionized waters, obtains solution B, and solution B is slowly added in above-mentioned solution A,
Generate white turbid to be transferred in 50mL reactors, 160 DEG C of hydro-thermal 12h.Question response kettle is cooled to room temperature, and sample is washed with water and ethanol,
Drying obtains solid powder C.Finally, solid powder C is calcined 5h under 500 DEG C of Muffle furnaces, 5 DEG C/min of heating rate.Finally
Obtain Bi3O4Cl nanometer sheets.
Step 3：Bi3O4The preparation of Cl/CdS composites
The 0.1g CdS ultrasonic disperses that step 1 prepares are obtained into solution A in 10mL ethanol, step 2 is prepared
0.05g Bi3O4Cl is dissolved in 1mL (0.2g/mL) PVP and obtains solution B, after solution A and solution B are mixed into 30min,
Hydro-thermal 6h at 160 DEG C is transferred among 50mL reactors.Question response kettle is cooled to room temperature, washes sample with water and ethanol, drying obtains
50wt.%Bi3O4Cl/CdS composites.
Embodiment 3
Step 1：The preparation of CdS nanospheres
By 0.426g Cd (Ac)2·2H2O and 3.0448g thiocarbamides are added in 40mL deionized waters and are sufficiently stirred 30min
Afterwards, the aaerosol solution obtained is transferred in 50mL reactors, and hydro-thermal 5h. question response kettles are cooled to room temperature under conditions of 140 DEG C,
Sample is washed with water and ethanol, drying obtains CdS solid powders.
Step 2：Bi3O4The preparation of Cl nanometer sheets
First by 0.485g Bi (NO3)3·5H2O ultrasonic disperses stir ultrasonic 10min in 10mL ethylene glycol, obtain molten
Liquid A.Secondly by 0.018g NH4Cl, which is dissolved in 25mL deionized waters, obtains solution B, and solution B is slowly added in above-mentioned solution A,
Generate white turbid to be transferred in 50mL reactors, 160 DEG C of hydro-thermal 12h.Question response kettle is cooled to room temperature, and sample is washed with water and ethanol,
Drying obtains solid powder C.Finally, solid powder C is calcined 5h under 500 DEG C of Muffle furnaces, 5 DEG C/min of heating rate.Finally
Obtain Bi3O4Cl nanometer sheets.
Step 3：Bi3O4The preparation of Cl/CdS composites
The 0.1g CdS ultrasonic disperses that step 1 prepares are obtained into solution A in 10mL ethanol, step 2 is prepared
0.07g Bi3O4Cl is dissolved in 1mL (0.2g/mL) PVP and obtains solution B, after solution A and solution B are mixed into 30min,
Hydro-thermal 6h at 160 DEG C is transferred among 50mL reactors.Question response kettle is cooled to room temperature, washes sample with water and ethanol, drying obtains
70wt.%Bi3O4Cl/CdS composites.
Embodiment 4
Step 1：The preparation of CdS nanospheres
By 0.426g Cd (Ac)2·2H2O and 3.0448g thiocarbamides are added in 40mL deionized waters and are sufficiently stirred 30min
Afterwards, the aaerosol solution obtained is transferred in 50mL reactors, and hydro-thermal 5h. question response kettles are cooled to room temperature under conditions of 140 DEG C,
Sample is washed with water and ethanol, drying obtains CdS solid powders.
Step 2：Bi3O4The preparation of Cl nanometer sheets
First by 0.485g Bi (NO3)3·5H2O ultrasonic disperses stir ultrasonic 10min in 10mL ethylene glycol, obtain molten
Liquid A.Secondly by 0.018g NH4Cl, which is dissolved in 25mL deionized waters, obtains solution B, and solution B is slowly added in above-mentioned solution A,
Generate white turbid to be transferred in 50mL reactors, 160 DEG C of hydro-thermal 12h.Question response kettle is cooled to room temperature, and sample is washed with water and ethanol,
Drying obtains solid powder C.Finally, solid powder C is calcined 5h under 500 DEG C of Muffle furnaces, 5 DEG C/min of heating rate.Finally
Obtain Bi3O4Cl nanometer sheets.
Step 3：Bi3O4The preparation of Cl/CdS composites
The 0.1g CdS ultrasonic disperses that step 1 prepares are obtained into solution A in 10mL ethanol, step 2 is prepared
0.1g Bi3O4Cl is dissolved in 1mL (0.2g/mL) PVP and obtains solution B, after solution A and solution B are mixed into 30min,
Hydro-thermal 6h at 160 DEG C is transferred among 50mL reactors.Question response kettle is cooled to room temperature, washes sample with water and ethanol, drying obtains
100wt.%Bi3O4Cl/CdS composites.
Claims (8)
- A kind of 1. Bi3O4Cl/CdS composites, it is characterised in that prepare with the following method：By CdS nanosphere ultrasonic disperses Solution A is obtained in ethanol, by Bi3O4Cl nanometer sheets are dissolved in PVP solution and obtain solution B, and solution A and solution B are mixed and stirred After mixing, hydro-thermal 6h at 160 DEG C is transferred in reactor；Question response kettle is cooled to room temperature, is washed with water and ethanol, and drying obtains 50wt.%Bi3O4Cl/CdS composites.
- A kind of 2. Bi as claimed in claim 13O4Cl/CdS composites, it is characterised in that the quality of the CdS and ethanol Volume ratio is：0.1g：10mL；The Bi3O4The mass volume ratio of Cl and PVP solution is 0.05：1mL, PVP solution concentration is 0.2g/mL；The volume ratio of the ethanol and PVP solution is 10:1.
- A kind of 3. Bi as claimed in claim 13O4Cl/CdS composites, it is characterised in that the time of the mixing is 30min。
- A kind of 4. Bi as claimed in claim 13O4Cl/CdS composites, it is characterised in that the CdS nanospheres are using such as It is prepared by lower section method：By Cd (Ac)2·2H2O and thiocarbamide, which are added in deionized water, to be stirred, and obtained aaerosol solution is transferred to reaction In kettle, the hydro-thermal 5h under conditions of 140 DEG C, question response kettle is cooled to room temperature, washed with water and ethanol, and drying obtains CdS solids Powder is CdS nanospheres.
- A kind of 5. Bi as claimed in claim 43O4Cl/CdS composites, it is characterised in that described Cd (Ac)2·2H2O、 Thiocarbamide and deionized water are by quality ratio：0.426：3.0448：40；Described mixing time is 30min.
- A kind of 6. Bi as claimed in claim 13O4Cl/CdS composites, it is characterised in that the Bi3O4The system of Cl nanometer sheets Preparation Method is as follows：First by Bi (NO3)3·5H2O, which is dispersed in ethylene glycol, stirs ultrasound, obtains solution A；Secondly by NH4Cl is molten Solution B is obtained in deionized water, solution B is slowly added in above-mentioned solution A, is transferred to after generating white turbid in reactor, 160 DEG C of hydro-thermal 12h；Question response kettle is cooled to room temperature, is washed with water and ethanol, and drying obtains solid powder C；Finally, by solid Powder C is warming up to 500 DEG C of roasting 5h in Muffle furnace, with 5 DEG C/min of heating rate and obtains Bi3O4Cl nanometer sheets.
- A kind of 7. Bi as claimed in claim 63O4Cl/CdS composites, it is characterised in that the Bi (NO3)3·5H2O with The mass volume ratio of ethylene glycol is：0.485g：10mL, the NH4Cl and the mass ratio of deionized water are：0.018：25；It is described The volume ratio of ethylene glycol and deionized water is 2:5.
- 8. the Bi as described in claim 1-7 is any3O4The purposes of Cl/CdS composites, decline third sand that unlinks for visible ray Star.
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| CN108620096A (en) * | 2018-04-17 | 2018-10-09 | 江苏大学 | A kind of visible light-responded Ag/Bi3O4Cl composite materials and preparation method and purposes |
| CN111686767A (en) * | 2020-05-21 | 2020-09-22 | 华南理工大学 | Microspherical Bi3O4Preparation and application of Cl/BiOI compound |
| CN112892562A (en) * | 2021-01-28 | 2021-06-04 | 辽宁大学 | Z-type Bi prepared based on in-situ synthesis method3O4Cl/Bi2MoO6Composite photocatalyst and application thereof |
| CN113058624A (en) * | 2021-03-09 | 2021-07-02 | 南阳师范学院 | Bi3O4Cl/g-C3N4Preparation method and application of 2D/2D van der Waals heterojunction |
| CN113976150A (en) * | 2021-10-15 | 2022-01-28 | 江苏大学 | CdS/Bi responding to visible light4TaO8Preparation method of Cl photocatalyst |
| CN116273133A (en) * | 2023-04-21 | 2023-06-23 | 上海电力大学 | Double Z type g-C 3 N 4 /Bi 3 O 4 Cl/Cd 0.5 Zn 0.5 S heterojunction photocatalyst, and preparation and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108620096A (en) * | 2018-04-17 | 2018-10-09 | 江苏大学 | A kind of visible light-responded Ag/Bi3O4Cl composite materials and preparation method and purposes |
| CN111686767A (en) * | 2020-05-21 | 2020-09-22 | 华南理工大学 | Microspherical Bi3O4Preparation and application of Cl/BiOI compound |
| CN112892562A (en) * | 2021-01-28 | 2021-06-04 | 辽宁大学 | Z-type Bi prepared based on in-situ synthesis method3O4Cl/Bi2MoO6Composite photocatalyst and application thereof |
| CN112892562B (en) * | 2021-01-28 | 2022-06-14 | 辽宁大学 | Z-type Bi prepared based on in-situ synthesis method3O4Cl/Bi2MoO6Composite photocatalyst and application thereof |
| CN113058624A (en) * | 2021-03-09 | 2021-07-02 | 南阳师范学院 | Bi3O4Cl/g-C3N4Preparation method and application of 2D/2D van der Waals heterojunction |
| CN113976150A (en) * | 2021-10-15 | 2022-01-28 | 江苏大学 | CdS/Bi responding to visible light4TaO8Preparation method of Cl photocatalyst |
| CN116273133A (en) * | 2023-04-21 | 2023-06-23 | 上海电力大学 | Double Z type g-C 3 N 4 /Bi 3 O 4 Cl/Cd 0.5 Zn 0.5 S heterojunction photocatalyst, and preparation and application thereof |
| CN116273133B (en) * | 2023-04-21 | 2024-04-23 | 上海电力大学 | Double Z type g-C3N4/Bi3O4Cl/Cd0.5Zn0.5S heterojunction photocatalyst, and preparation and application thereof |
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