CN107684914A - Magnetic Bi2MoO6/CuFe2O4Composite photocatalytic material and preparation method thereof - Google Patents
Magnetic Bi2MoO6/CuFe2O4Composite photocatalytic material and preparation method thereof Download PDFInfo
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- 229910002900 Bi2MoO6 Inorganic materials 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 230000001699 photocatalysis Effects 0.000 title abstract description 10
- 239000000725 suspension Substances 0.000 claims abstract description 30
- 229910016516 CuFe2O4 Inorganic materials 0.000 claims abstract description 25
- 239000002131 composite material Substances 0.000 claims abstract description 22
- 239000007787 solid Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 16
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004202 carbamide Substances 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims abstract description 9
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims abstract description 8
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 8
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(III) nitrate Inorganic materials [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 4
- 239000011941 photocatalyst Substances 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 13
- 229910002554 Fe(NO3)3·9H2O Inorganic materials 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000011541 reaction mixture Substances 0.000 claims description 4
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical compound [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 2
- 238000001035 drying Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 238000005215 recombination Methods 0.000 abstract description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 abstract 3
- 230000007547 defect Effects 0.000 abstract 2
- 238000004043 dyeing Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 230000006798 recombination Effects 0.000 abstract 1
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 8
- 229960000907 methylthioninium chloride Drugs 0.000 description 8
- 238000006555 catalytic reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 238000007146 photocatalysis Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910052797 bismuth Inorganic materials 0.000 description 3
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001621 bismuth Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- DXKGMXNZSJMWAF-UHFFFAOYSA-N copper;oxido(oxo)iron Chemical compound [Cu+2].[O-][Fe]=O.[O-][Fe]=O DXKGMXNZSJMWAF-UHFFFAOYSA-N 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
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004298 light response Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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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
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8876—Arsenic, antimony or bismuth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
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- B01J35/33—Electric or magnetic properties
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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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- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
- B01J37/088—Decomposition of a metal salt
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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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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- 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
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- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
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Abstract
The invention discloses a magnetic Bi2MoO6/CuFe2O4The composite photocatalytic material and the preparation method thereof are as follows: adding Bi2MoO6Ultrasonically dispersing in deionized water, and adding Cu (NO)3)2·3H2O、Fe(NO3)3·9H2Placing O and disodium ethylene diamine tetraacetate in a water bath at 20-30 ℃ and stirring for 0.5-1 h to obtain a suspension A, adding urea to the suspension A, placing the suspension A in a water bath at 50-80 ℃ to react for 0.5-2 h to obtain a mixed suspension B, placing the mixed suspension B in a hydrothermal reaction kettle at 120-160 ℃, stirring to react for 1-8 h, filtering, washing and drying the obtained reaction mixed solution to obtain a solid, placing the solid in a muffle furnace to calcine at 400-700 ℃ for 1-3 h to obtain magnetic Bi with high catalytic activity2MoO6/CuFe2O4A composite photocatalytic material. The invention overcomes the defect of Bi2MoO6Has the defects of easy recombination of electron holes and poor recoverability, and prepares the magnetic Bi2MoO6/CuFe2O4The process of the composite photocatalytic material has the advantages of high efficiency and easy operation, and can replace TiO2And ZnO and the like are applied to photocatalytic purification of printing and dyeing wastewater, medical wastewater and heavy metal wastewater.
Description
(1) technical field
The present invention relates to a kind of preparation method of recyclable catalysis material, and in particular to a kind of magnetic Bi2MoO6/
CuFe2O4Composite photocatalyst material and preparation method thereof, belong to novel visible catalysis material preparation and application field.
(2) background technology
It is careful with the enhancing of development, the improvement of people's living standards and the health environment-friendly consciousness of social economy, people
Know the importance to pollutant process, constantly explore control atmosphere pollution, the new technology of water pollution, new method, photocatalysis quilt
Numerous researchers are considered one of effective ways for solving the problems, such as atmospheric environment and water environment pollution.Photocatalysis technology can be in room temperature
Deep reaction and light source is directly utilized sunlight as to drive, be a kind of preferable environmental pollution treatment technology, with wide
Application prospect and great social and economical benefit.
More traditional catalysis material such as TiO is studied at present2, ZnO etc. there is higher energy gap, cause solar energy
Utilization rate is low (ultraviolet radioactive is less than 5% in sunshine), therefore the conductor photocatalysis material with visible light response activity is inhaled
Draw the sight of vast researcher, and direction of scientific rersearch is transferred to non-TiO2Series visible light catalyst, such as with
Bi2MoO6To represent bismuth series visible-light catalysis material, it has compared with low energy gap width EgFor 2.71eV, having to degrade under visible ray has
The ability of organic pollutants, and its electronic structure is more unique, and more precipitous ABSORPTION EDGE can be formed in visible-range, and
Make the formation in hole more smooth with flowing using the antibonding between zwitterion, be advantageous to the progress of light-catalyzed reaction, have
Hope the new lover for substituting traditional photochemical catalyst to turn into organic sewage purified treatment field.
But Bi2MoO6The deficiency for being difficult to separate and recover, reuse difficulty in liquid phase reactor be present, main cause is
Powdered Bi2MoO6Particle is tiny, it is difficult to settles, is easily lost in.And CuFe2O4(Eg=2.0eV) it is that one kind has visible light-sensitive
The magnetic photocatalytic material of perception, possess the advantages of easy preparation technology and relatively high magnetism, but Bi2MoO6Or CuFe2O4Individually make
Used time, light induced electron and hole-recombination rate are higher, so by Bi2MoO6And CuFe2O4Semiconductors coupling is carried out, substitution is expected to and passes
System photochemical catalyst turns into the new lover that the recyclable light of magnetic urges agent field.
(3) content of the invention
For existing Bi2MoO6The deficiency of the high and recyclable reusability difference of photon-hole-recombination rate be present, the present invention provides
A kind of magnetic Bi2MoO6/CuFe2O4Composite photocatalyst material and preparation method thereof, for making up disadvantages mentioned above.
The present invention is achieved by the following technical solutions：
A kind of magnetic Bi2MoO6/CuFe2O4The preparation method of composite photocatalyst material, described method is specifically by following step
It is rapid to carry out：
(1) by Bi2MoO6Then ultrasonic disperse adds Cu (NO in deionized water3)2·3H2O、Fe(NO3)3·9H2O and
Disodium ethylene diamine tetraacetate (EDTA-2Na), it is placed in 0.5~1h of stirring under 20~30 DEG C of water-baths and obtains suspension A；Described
Bi2MoO6With Cu (NO3)2·3H2O、Fe(NO3)3·9H2The mass ratio of O and disodium ethylene diamine tetraacetate is 1:0.604~
2.416:2.02~8.08：0.005~0.02；
(2) urea is added in the suspension A obtained by step (1), is placed in 0.5~2h of reaction in 50~80 DEG C of water-baths, obtains
To mixing suspension B；Described suspending liquid A is with input Cu (NO3)2·3H2The quality of O quality meter and described urea
Than for 0.3~0.6:1；
(3) the mixing suspension B obtained by step (2) is placed in 120~160 DEG C of hydrothermal reaction kettles, 1~8h of stirring reaction
Afterwards, gained reaction mixture is filtered, wash and is dried to obtain solid, and obtained solid is calcined to obtain magnetic Bi2MoO6/
CuFe2O4Composite photocatalyst material.
Further, in step (1), the addition of described deionized water and described Bi2MoO6Mass ratio be 1:
0.016~0.04.
Further, in step (1), preferably described Bi2MoO6With Cu (NO3)2·3H2O、Fe(NO3)3·9H2O and second two
The mass ratio of amine tetraacethyl disodium is 1:0.604~1.208：2.02~4.04：0.005~0.01.
Further, in step (2), described suspending liquid A is with input Cu (NO3)2·3H2O quality meter with it is described
The mass ratio of urea is 0.4~0.6:1.
Further, in step (3), preferably described mixing suspension B hydrothermal temperature is 120~130 DEG C, reaction
Time is 2~3h.
Further, in step (3), the calcination process is that obtained solid is placed in Muffle furnace at 400~700 DEG C
1~3h of calcining obtains described magnetic Bi2MoO6/CuFe2O4Composite photocatalyst material.
Further, method of the present invention is specifically carried out as follows：
(1) by Bi2MoO6Then ultrasonic disperse adds Cu (NO in deionized water3)2·3H2O、Fe(NO3)3·9H2O and
Disodium ethylene diamine tetraacetate, it is placed in 0.5~1h of stirring under 20~30 DEG C of water-baths and obtains suspension A；Described Bi2MoO6With Cu
(NO3)2·3H2O、Fe(NO3)3·9H2The mass ratio of O and disodium ethylene diamine tetraacetate is 1:0.604~1.208:2.02~
4.04:0.005~0.01；The addition of described deionized water and described Bi2MoO6Mass ratio be 1:0.016~0.02；
(2) urea is added in the suspension A obtained by step (1), is placed in 0.5~2h of reaction in 50~80 DEG C of water-baths, obtains
To mixing suspension B；Described suspending liquid A is with input Cu (NO3)2·3H2The quality of O quality meter and described urea
Than for 0.4~0.6:1；
(3) the mixing suspension B obtained by step (2) is placed in 120~130 DEG C of hydrothermal reaction kettles, 2~3h of stirring reaction
Afterwards, gained reaction mixture it is filtered, washing be dried to solid, obtained solid is placed in Muffle furnace and forged at 400~700 DEG C
Burn 1~3h and obtain magnetic Bi2MoO6/CuFe2O4Composite photocatalyst material.
Compared with prior art, the beneficial effects of the invention are as follows：
Hydro-thermal-calcining combination method that this technology uses, avoids and alkaline sedimentation is used in conventional composite materials preparation process
The agent such as settling velocity such as NaOH, ammoniacal liquor is fast, serious deficiency of reuniting, and uses Bi2MoO6/CuFe2O4It is compound, it can increase
Bi2MoO6Magnetic recyclability and catalytic activity.The magnetic Bi with ferromagnetism and highlight catalytic active prepared by the present invention2MoO6/
CuFe2O4The alternative traditional photochemical catalyst TiO of composite photocatalyst material2, ZnO etc., applied to industry, purifying domestic sewage processing.
(4) illustrate
Fig. 1 is magnetic Bi prepared by the embodiment of the present invention 22MoO6/CuFe2O4The magnetic recovery figure of composite photocatalyst material.
Fig. 2 is magnetic Bi prepared by the embodiment of the present invention 22MoO6/CuFe2O4The XRD of composite photocatalyst material.
(5) embodiment
With reference to specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in
This：
Embodiment 1
(1) 1g bismuth molybdates ultrasonic disperse is weighed in 50ml deionized waters, then adds 0.604g Cu (NO3)2·3H2O、
2.02g Fe(NO3)3·9H2O and 0.005g disodium ethylene diamine tetraacetates, it is placed in stirring 0.5h under 20 DEG C of water-baths and obtains suspension
A；
(2) weigh 1.5g urea to be added in the mixed liquor that step (1) obtains, be placed in 50 DEG C of stirred in water bath 0.5h, obtain
To mixing suspension B；
(3) the mixing suspension B obtained by step (2) is placed in 120 DEG C of hydrothermal reaction kettles, after stirring reaction 1h, passed through
Filter, washing, solid is obtained after drying, obtained solid is placed in Muffle furnace can obtain urging with height in 400 DEG C of calcining 3h
Change the magnetic Bi of activity2MoO6/CuFe2O4Composite photocatalyst material.
Embodiment 2
(1) 0.8g bismuth molybdates ultrasonic disperse is weighed in 50ml deionized waters, then adds 1.208g Cu (NO3)2·
3H2O、4.04g Fe(NO3)3·9H2O and 0.01g disodium ethylene diamine tetraacetates, be placed under 30 DEG C of water-baths stir 1h obtain it is suspended
Liquid A；
(2) weigh 2g urea to be added in the mixed liquor that step (1) obtains, be placed in 80 DEG C of stirred in water bath 2h, mixed
Close suspension B；
(3) the mixing suspension B obtained by step (2) is placed in 130 DEG C of hydrothermal reaction kettles, after stirring reaction 8h, passed through
Filter, washing, solid is obtained after drying, obtained solid is placed in Muffle furnace can obtain urging with height in 600 DEG C of calcining 2h
Change the magnetic Bi of activity2MoO6/CuFe2O4Composite photocatalyst material.
Embodiment 3
(1) 1.8g bismuth molybdates ultrasonic disperse is weighed in 50ml deionized waters, then adds 2.416gCu (NO3)2·
3H2O、8.08g Fe(NO3)3·9H2O and 0.02g disodium ethylene diamine tetraacetates, it is placed in stirring 0.5h under 20 DEG C of water-baths and is hanged
Turbid A；
(2) weigh 8.05g urea to be added in the mixed liquor that step (1) obtains, be placed in 70 DEG C of stirred in water bath 1h, obtain
Mixing suspension B；
(3) the mixing suspension B obtained by step (2) is placed in 160 DEG C of hydrothermal reaction kettles, after stirring reaction 2h, passed through
Filter, washing, solid is obtained after drying, obtained solid is placed in Muffle furnace can obtain urging with height in 700 DEG C of calcining 2h
Change the magnetic Bi of activity2MoO6/CuFe2O4Composite photocatalyst material.
Performance test is tested
50mL initial concentrations 4mg/L methylene blue (MB) solution is added in light-catalyzed reaction quartz ampoule, weighs 0.08g
The magnetic Bi prepared in embodiment2MoO6/CuFe2O4Composite photocatalyst material is added in above-mentioned MB solution, in xenon lamp visible ray
Lower irradiation 8h, remaining MB concentration in solution is tested by spectrophotometer, MB degradation rates (%) is calculated, is reclaimed by permanent magnetic field
Bi2MoO6/CuFe2O4Composite photocatalyst material, calculate the magnetic rate of recovery (%).Experimental result is as shown in table 1.
The detection and analysis result of the embodiment sample of table 1
| Sample ID | MB degradation rates (%) | The magnetic rate of recovery (%) |
| Embodiment 1 | 93.2 | 96.5 |
| Embodiment 2 | 96.8 | 98.3 |
| Embodiment 3 | 91.7 | 95.4 |
Result is tested and analyzed by the MB degradation rates (%) and the magnetic rate of recovery (%) of the sample of embodiment 1~3 in table 1,
The sample of embodiment 1~3 is more than 90%, the magnetic rate of recovery to MB degradation rates and is more than 95%, and it is more excellent to illustrate that the sample of embodiment 1~3 has
Photocatalysis and recyclability.
Claims (7)
- A kind of 1. magnetic Bi2MoO6/CuFe2O4The preparation method of composite photocatalyst material, it is characterised in that described method is specific Carry out as follows：(1) by Bi2MoO6Then ultrasonic disperse adds Cu (NO in deionized water3)2·3H2O、Fe(NO3)3·9H2O and second two Amine tetraacethyl disodium, it is placed in 0.5~1h of stirring under 20~30 DEG C of water-baths and obtains suspension A；Described Bi2MoO6With Cu (NO3)2·3H2O、Fe(NO3)3·9H2The mass ratio of O and disodium ethylene diamine tetraacetate is 1:0.604~2.416:2.02~ 8.08:0.005~0.02；(2) urea is added in the suspension A obtained by step (1), is placed in 0.5~2h of reaction in 50~80 DEG C of water-baths, is mixed Close suspension B；Described suspending liquid A is with input Cu (NO3)2·3H2The mass ratio of O quality meter and described urea is 0.3~0.6:1；(3) the mixing suspension B obtained by step (2) is placed in 120~160 DEG C of hydrothermal reaction kettles, after 1~8h of stirring reaction, Gained reaction mixture is filtered, wash and is dried to obtain solid, and obtained solid is calcined to obtain magnetic Bi2MoO6/ CuFe2O4Composite photocatalyst material.
- 2. method as claimed in claim 1, it is characterised in that：In step (1), the addition of described deionized water and institute The Bi stated2MoO6Mass ratio be 1:0.016~0.04.
- 3. method as claimed in claim 1, it is characterised in that：In step (1), described Bi2MoO6With Cu (NO3)2· 3H2O、Fe(NO3)3·9H2The mass ratio of O and disodium ethylene diamine tetraacetate is 1:0.604~1.208:2.02~4.04:0.005 ~0.01.
- 4. method as claimed in claim 1, it is characterised in that：In step (2), described suspending liquid A is with input Cu (NO3)2·3H2The mass ratio of O quality meter and described urea is 0.4~0.6:1.
- 5. method as claimed in claim 1, it is characterised in that：In step (3), described mixing suspension B hydro-thermal is anti- It is 120~130 DEG C to answer temperature, and the reaction time is 2~3h.
- 6. method as claimed in claim 1, it is characterised in that：In step (3), the calcination process is the solid that will be obtained It is placed in Muffle furnace and obtains described magnetic Bi in 400~700 DEG C of 1~3h of calcining2MoO6/CuFe2O4Composite photocatalyst material.
- 7. method as claimed in claim 1, it is characterised in that：Described method is specifically carried out as follows：(1) by Bi2MoO6Then ultrasonic disperse adds Cu (NO in deionized water3)2·3H2O、Fe(NO3)3·9H2O and second two Amine tetraacethyl disodium, it is placed in 0.5~1h of stirring under 20~30 DEG C of water-baths and obtains suspension A；Described Bi2MoO6With Cu (NO3)2·3H2O、Fe(NO3)3·9H2The mass ratio of O and disodium ethylene diamine tetraacetate is 1:0.604~1.208:2.02~ 4.04:0.005~0.01；The addition of described deionized water and described Bi2MoO6Mass ratio be 1:0.016~0.02；(2) urea is added in the suspension A obtained by step (1), is placed in 0.5~2h of reaction in 50~80 DEG C of water-baths, is mixed Close suspension B；Described suspending liquid A is with input Cu (NO3)2·3H2The mass ratio of O quality meter and described urea is 0.4~0.6:1；(3) the mixing suspension B obtained by step (2) is placed in 120~130 DEG C of hydrothermal reaction kettles, after 2~3h of stirring reaction, Gained reaction mixture is filtered, washing is dried to solid, and obtained solid is placed in Muffle furnace and calcines 1 at 400~700 DEG C ~3h obtains magnetic Bi2MoO6/CuFe2O4Composite photocatalyst material.
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