CN107840435A - A kind of compound system and preparation method of antibiotic of rapidly and efficiently degrading - Google Patents
A kind of compound system and preparation method of antibiotic of rapidly and efficiently degrading Download PDFInfo
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- 230000003115 biocidal effect Effects 0.000 title claims abstract description 28
- 150000001875 compounds Chemical class 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 230000000593 degrading effect Effects 0.000 title claims abstract description 9
- 239000003054 catalyst Substances 0.000 claims abstract description 43
- 229910002518 CoFe2O4 Inorganic materials 0.000 claims abstract description 27
- 229910003321 CoFe Inorganic materials 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000003647 oxidation Effects 0.000 claims abstract description 10
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 claims abstract description 7
- 238000003918 potentiometric titration Methods 0.000 claims abstract description 7
- 238000011065 in-situ storage Methods 0.000 claims abstract 3
- 238000003786 synthesis reaction Methods 0.000 claims abstract 3
- 230000015572 biosynthetic process Effects 0.000 claims abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 35
- 238000003756 stirring Methods 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 7
- 229910002554 Fe(NO3)3·9H2O Inorganic materials 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 6
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 230000001351 cycling effect Effects 0.000 claims 1
- 150000002500 ions Chemical class 0.000 claims 1
- 230000005415 magnetization Effects 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- HDMGAZBPFLDBCX-UHFFFAOYSA-M potassium;sulfooxy sulfate Chemical compound [K+].OS(=O)(=O)OOS([O-])(=O)=O HDMGAZBPFLDBCX-UHFFFAOYSA-M 0.000 claims 1
- 238000011084 recovery Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 claims 1
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 3
- MYSWGUAQZAJSOK-UHFFFAOYSA-N ciprofloxacin Chemical compound C12=CC(N3CCNCC3)=C(F)C=C2C(=O)C(C(=O)O)=CN1C1CC1 MYSWGUAQZAJSOK-UHFFFAOYSA-N 0.000 abstract 2
- 229960003405 ciprofloxacin Drugs 0.000 abstract 1
- 238000007885 magnetic separation Methods 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 235000019441 ethanol Nutrition 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000003795 desorption Methods 0.000 description 6
- 125000005909 ethyl alcohol group Chemical group 0.000 description 6
- 239000002253 acid Substances 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000007210 heterogeneous catalysis Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- -1 Hydroxyl radical free radical Chemical class 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000035143 Bacterial infection Diseases 0.000 description 1
- 229930182555 Penicillin Natural products 0.000 description 1
- JGSARLDLIJGVTE-MBNYWOFBSA-N Penicillin G Chemical compound N([C@H]1[C@H]2SC([C@@H](N2C1=O)C(O)=O)(C)C)C(=O)CC1=CC=CC=C1 JGSARLDLIJGVTE-MBNYWOFBSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 208000022362 bacterial infectious disease Diseases 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229940049954 penicillin Drugs 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 229910001428 transition metal ion Inorganic materials 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B01J23/74—Iron group metals
- B01J23/75—Cobalt
-
- 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
- B01J35/33—Electric or magnetic properties
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a kind of compound system and preparation method of antibiotic of rapidly and efficiently degrading：Using triblock polymer P123 as mantle plate, the mesoporous CoFe of in-situ method one-step synthesis is utilized2O4Catalyst.High-level oxidation technology based on potentiometric titrations, CoFe2O4PMS can be catalyzed and produce potentiometric titrations, Ciprofloxacin in effective degradation water（CIP）.The mesoporous CoFe simultaneously2O4Catalyst possesses larger specific surface area, can be obviously improved the efficiency that catalysis PMS produces potentiometric titrations degraded CIP.Meanwhile magnetic separation method can be used quickly to realize the separation of catalyst and water body, realize and quickly reclaim, recycle.
Description
Technical field
The present invention relates to a kind of potentiometric titrations high-level oxidation technology, and can rapidly and efficiently degrade antibiotic.
Background technology
Since nineteen twenty-eight penicillin invention, the efficient spectrum that has due to antibiotic, Orally active, it is complete intersect it is anti-
Property the advantages that, antibiotic be widely used in treat human body, disease, prevention livestock and poultry, aquatic products bacterial disease in.But by
In widely using for antibiotic, all kinds of bacteriums can be caused to produce antibody, while the antibiotic remained will also be used as pollutant to people
Body, animal and environmental protection cause serious threat.Because antibiotic is difficult to be degraded by microorganisms, thus, if not taking conjunction
Effective measures are managed, the residual antibiont in environment will be more and more.The research polluted according to the Chinese Academy of Sciences on antibiotic
Show, 50,000 tons of antibiotic are had more than in China, 1 year and are discharged into soil and water resources；Compared to foreign countries, the totality of Chinese river
Antibiotic concentration is higher, and measurement concentration reaches as high as 7560 and received g/l.Therefore, it is badly in need of a kind of fast and effectively method to degrade
Fall the antibiotic remained in water.
High-level oxidation technology is to utilize the extremely strong free radical of caused activity in reaction（Hydroxyl radical free radical, sulfate radical are free
Base etc.）Organic pollution in oxidation Decomposition water body, free-radical oxidation ability is strong, can make the fast prompt drop of most organic pollutions
Solve as carbon dioxide and water.Compared to other free radicals, potentiometric titrations（SO4·-）With stronger standard electrode potential
（2.5-3.1ev）, show the ability of more powerful oxidation Decomposition organic dyestuff.Meanwhile research shows, SO4·-Can compared with
Excellent oxidation susceptibility is all shown in the range of big pH.Therefore, based on SO4·-High-level oxidation technology processing organic contamination
Thing field increasingly arouses people's interest.
SO4·-Typically can be by persulfate（PMS）Or peroxydisulfate（PS）By heating, ultraviolet, transition gold
Obtained after the processing of the means of catalysis such as category, ultrasound.Wherein because its is simple to operate, energy loss is few, using transition metal-catalyzed PMS
Or PS obtains SO4·-It is most widely used method.But can be due to residual during single transition metal-catalyzed PMS or PS
Metal ion and cause secondary pollution, so as to limit its practical application.Although urged using heterogeneous based on transition metal ions
Agent can be good at solving this problem, but in actual application or can encounter following stubborn problem：
How fast and effeciently separating catalyst and realize its reuse ability；How so that catalyst will not imitate because of small size
Should and reuniting or the factor such as being used for multiple times reduces catalytic performance.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies in the prior art, and preparing one kind can quickly, efficiently go
Except water body moderate resistance gives birth to the catalyst of element, while the performance that the catalyst has quick separating, can be recycled, and one kind is provided and adopted
With mesoporous CoFe2O4Heterogeneous catalysis PMS produces SO4·-The method of efficient degradation antibiotic.
Compared to common nano material, meso-porous nano material has complicated pore passage structure, higher specific surface area, a side
Face can the more organic pollutions of physical absorption, on the other hand more active materials can be produced on its surface, so as to more
Be advantageous to the progress of catalytic reaction, improve catalysis PMS and produce SO4·-Efficiency, reach improve remove antibiotic degradation efficiency.
As a kind of typical ferrospinel, CoFe2O4 With excellent magnetic property, there is enough magnetic response energy
Power.Research shows that different transition metal-catalyzed PMS produce SO4·-The priority of ability is as follows：Fe2+>Co2+>Cu2+>Mg2+>
Zn2+>Ni2+>Mn2+>Ag+.Therefore the heterogeneous mesoporous CoFe being made up of two kinds of elements with greater catalytic performance of Fe and Co2O4
Catalyst has the performance of excellent catalysis PMS degraded antibiotic.Magnetism separate method can be used simultaneously, can be by CoFe2O4It hurry up
Speed, effectively separated from water body, reach the purpose of recycling.
The compound system and preparation method of a kind of rapidly and efficiently degraded antibiotic are realized by following technology path：
First, mesoporous CoFe2O4The preparation of heterogeneous catalysis；2nd, the CIP titers of different solubility are configured；3rd, in into CIP titers
Add a certain amount of mesoporous CoFe2O4And PMS, test its removal efficiency；4th, using magnetism separate method, CoFe is recycled2O4,
Above-mentioned test process is repeated, it is tested and recycles performance.
Mesoporous CoFe2O4Heterogeneous catalysis preparation through the following steps that complete：First, it is 1 by mol ratio:2 Co
(NO3)2·6H2O（1.45g~2.9g）、Fe(NO3)3·9H2O is dissolved in 40ml ethanol, and stirring 1h obtains solution A；2nd, by 2g
In the hydrochloric acid that P123 is dissolved in 30ml ethanol and 30ml concentration is 2mol/L, stirring 2h obtains solution B；3rd, solution A is slowly added
Enter in solution B, be transferred to after persistently stirring 1h in interlayer beaker, 45 DEG C of stirring in water bath to gel state；4th, gel is placed in tubular type
In stove, under nitrogen atmosphere protection, 1 DEG C/min is warming up to 400 ~ 800 DEG C, is incubated 2 ~ 6h, produces mesoporous CoFe2O4Catalyst.
Mesoporous CoFe2O4The performance test methods for being catalyzed PMS degradeds CIP are as follows：By a certain amount of CoFe2O4Catalyst adds
Enter in 100mlCIP solution, after 30min stirrings reach physical absorption-desorption equilibrium, add 1 ~ 4mmolPMS and start catalysis instead
Should.Every 15min, 5ml liquid is measured, and immediately adds 0.5ml absolute ethyl alcohols so that reaction is quenched.In the auxiliary of a block permanent magnet
It is lower by after catalyst and remaining CIP separation, test CIP solubility, and calculate CIP removal efficiency.
The present invention has following advantage：Firstth, magnetism separate method can be used, can be by CoFe2O4Quickly, effectively
Separated from water body, reach the purpose of recycling；Secondth, meso-hole structure can effectively suppress its reunion, keep its catalysis
Activity, stability are strong；3rd, meso-hole structure and larger specific surface area can improve its catalytic performance, efficiently be gone so as to reach
Except the performance of antibiotic.
Brief description of the drawings
Fig. 1 is mesoporous CoFe prepared by embodiment one2O4The XRD curve maps of catalyst；Fig. 2 is specific embodiment party
CoFe prepared by formula one2O4The VSM figures and magnetic response design sketch of catalyst；Fig. 3 is the intermediary hole CoFe of embodiment one2O4
Catalyst PMS degradeds CIP removal effect curve；Fig. 4 is order mesoporous CoFe in embodiment five2O4Catalyst
Recycling performance figure.
Fig. 1 is mesoporous CoFe prepared by embodiment one2O4The XRD curve maps of catalyst, as can be seen from the figure institute
Some diffraction maximums all meet the CoFe of spinel structure2O4Standard diffraction peak, marked with "●".
Fig. 2 is CoFe prepared by embodiment one2O4The VSM figures and magnetic response design sketch of catalyst, can be with from figure
Find out CoFe2O4Catalyst has excellent magnetic property and magnetic response phenomenon.
Fig. 3 is the intermediary hole CoFe of embodiment one2O4Catalyst PMS degradeds CIP removal effect curve.From
It can be seen from the figure that, order mesoporous CoFe prepared by the present invention2O4Catalyst has efficient catalytic PMS degradeds CIP performance.
Fig. 4 is the intermediary hole CoFe of embodiment five2O4The recycling performance figure of catalyst.It can be seen that
Mesoporous CoFe prepared by the present invention2O4Catalyst has efficient circulation performance.
Embodiment
Embodiment one：First, it is 1 by mol ratio:2 Co (NO3)2·6H2O（1.45g）、Fe(NO3)3·9H2O is molten
In 40ml ethanol, stirring 1h obtains solution A；2nd, 2g P123 are dissolved in the salt of 30ml ethanol and 30ml concentration for 2mol/L
In acid, stirring 2h obtains solution B；3rd, solution A is slowly added in solution B, be transferred to after persistently stirring 1h in interlayer beaker, 45
DEG C stirring in water bath is to gel state；4th, gel is placed in tube furnace, under nitrogen atmosphere protection, 1 DEG C/min is warming up to 600
DEG C, 4h is incubated, produces mesoporous CoFe2O4Catalyst.Then by mesoporous CoFe2O4Catalyst（0.2/L）Add 100mlCIP
（20mg/L）In solution, after 30min stirrings reach physical absorption-desorption equilibrium, add 2mmol PMS and start catalytic reaction.
Every 15min, 5ml liquid is measured, and immediately adds 0.5ml absolute ethyl alcohols so that reaction is quenched.Under the auxiliary of a block permanent magnet
After catalyst and remaining CIP separation, CIP solubility is tested, and calculate CIP removal efficiency.
Embodiment two：First, it is 1 by mol ratio:2 Co (NO3)2·6H2O（1.45g）、Fe(NO3)3·9H2O is molten
In 40ml ethanol, stirring 1h obtains solution A；2nd, 2g P123 are dissolved in the salt of 30ml ethanol and 30ml concentration for 2mol/L
In acid, stirring 2h obtains solution B；3rd, solution A is slowly added in solution B, be transferred to after persistently stirring 1h in interlayer beaker, 45
DEG C stirring in water bath is to gel state；4th, gel is placed in tube furnace, under nitrogen atmosphere protection, 1 DEG C/min is warming up to 800
DEG C, 4h is incubated, produces mesoporous CoFe2O4Catalyst.Then by mesoporous CoFe2O4Catalyst（0.2/L）Add 100mlCIP
（20mg/L）In solution, after 30min stirrings reach physical absorption-desorption equilibrium, add 2mmol PMS and start catalytic reaction.
Every 15min, 5ml liquid is measured, and immediately adds 0.5ml absolute ethyl alcohols so that reaction is quenched.Under the auxiliary of a block permanent magnet
After catalyst and remaining CIP separation, CIP solubility is tested, and calculate CIP removal efficiency.
Embodiment three：First, it is 1 by mol ratio:2 Co (NO3)2·6H2O（1.45g）、Fe(NO3)3·9H2O is molten
In 40ml ethanol, stirring 1h obtains solution A；2nd, 2g P123 are dissolved in the salt of 30ml ethanol and 30ml concentration for 2mol/L
In acid, stirring 2h obtains solution B；3rd, solution A is slowly added in solution B, be transferred to after persistently stirring 1h in interlayer beaker, 45
DEG C stirring in water bath is to gel state；4th, gel is placed in tube furnace, under nitrogen atmosphere protection, 1 DEG C/min is warming up to 600
DEG C, 4h is incubated, produces mesoporous CoFe2O4Catalyst.Then by mesoporous CoFe2O4Catalyst（0.2/L）Add 100mlCIP
（20mg/L）In solution, after 30min stirrings reach physical absorption-desorption equilibrium, add 3mmol PMS and start catalytic reaction.
Every 15min, 5ml liquid is measured, and immediately adds 0.5ml absolute ethyl alcohols so that reaction is quenched.Under the auxiliary of a block permanent magnet
After catalyst and remaining CIP separation, CIP solubility is tested, and calculate CIP removal efficiency.
Embodiment four：First, it is 1 by mol ratio:2 Co (NO3)2·6H2O（1.45g）、Fe(NO3)3·9H2O is molten
In 40ml ethanol, stirring 1h obtains solution A；2nd, 2g P123 are dissolved in the salt of 30ml ethanol and 30ml concentration for 2mol/L
In acid, stirring 2h obtains solution B；3rd, solution A is slowly added in solution B, be transferred to after persistently stirring 1h in interlayer beaker, 45
DEG C stirring in water bath is to gel state；4th, gel is placed in tube furnace, under nitrogen atmosphere protection, 1 DEG C/min is warming up to 600
DEG C, 4h is incubated, produces mesoporous CoFe2O4Catalyst.Then by mesoporous CoFe2O4Catalyst（0.2/L）Add 100mlCIP
（20mg/L）In solution, after 30min stirrings reach physical absorption-desorption equilibrium, add 4mmol PMS and start catalytic reaction.
Every 15min, 5ml liquid is measured, and immediately adds 0.5ml absolute ethyl alcohols so that reaction is quenched.Under the auxiliary of a block permanent magnet
After catalyst and remaining CIP separation, CIP solubility is tested, and calculate CIP removal efficiency.
Embodiment five：Using magnetism separate method, by final remaining CoFe in embodiment one2O4Catalysis
Agent is reclaimed, and is placed in after deionized water and absolute ethyl alcohol washing in 100 DEG C of baking ovens and is incubated 24h, by the mesoporous CoFe of gained2O4Catalysis
Agent adds 100mlCIP（20mg/L）In solution, after 30min stirrings reach physical absorption-desorption equilibrium, 2mmol PMS are added
Start catalytic reaction.Every 15min, 5ml liquid is measured, and immediately adds 0.5ml absolute ethyl alcohols so that reaction is quenched.At one piece forever
By after catalyst and remaining CIP separation under the auxiliary of magnet, CIP solubility is tested, and calculate CIP removal efficiency.Repeat above-mentioned mistake
Journey, the CoFe tested after being used for multiple times2O4Catalyst PMS degradeds CIP removal efficiency.
Claims (5)
1. a kind of compound system and preparation method of antibiotic of rapidly and efficiently degrading, it is characterised in that this method includes following step
Suddenly：Using the mesoporous CoFe of in-situ method one-step synthesis2O4Catalyst, utilize potentiometric titrations（SO4·-）High-level oxidation technology, press
Certain proportioning configuration CoFe2O4And potassium hydrogen persulfate（PMS）Obtain a kind of compound system for antibiotic of rapidly and efficiently degrading.
2. a kind of compound system and preparation method of antibiotic of rapidly and efficiently degrading according to claim 1, it is characterised in that
The two class materials that compound system is related to mutually cooperate with quick, the efficient removal for completing antibiotic；First, PMS is in Fe3+、Co2+Ion
Catalysis is lower to produce potentiometric titrations, can efficient oxidation decomposition antibiotic；2nd, order mesoporous CoFe2O4Catalyst possesses larger
Specific surface area, it can not only contact more PMS and produce more living radicals, can also be formed and urged by micro-porous adsorption antibiotic
High local concentrations near agent, so as to be obviously improved the efficiency of degraded antibiotic；3rd, CoFe2O4Catalyst possesses excellent in itself
Magnetic response acts on, and catalyst can be achieved and quickly and efficiently separated with water body, reach recovery, the effect of cycling and reutilization.
3. a kind of compound system and preparation method of antibiotic of rapidly and efficiently degrading according to claim 1, it is characterised in that
Mesoporous CoFe2O4Catalyst uses in-situ method one-step synthesis, and specific preparation method is as follows：First, it is 1 by mol ratio:2 Co
(NO3)2·6H2O（1.45 ~2.9g）、Fe(NO3)3·9H2O is dissolved in 40 ~ 60 ml ethanol, and 1 ~ 2 h of stirring obtains solution A；
2nd, 2 g P123 are dissolved in 30 ~ 45ml ethanol and 30 ~ 45ml concentration in 1.5 ~ 2 mol/L hydrochloric acid, 2 ~ 4 h of stirring are obtained
Solution B；3rd, solution A is slowly added in solution B, be transferred to after persistently stirring 1 ~ 3h in interlayer beaker, 40 ~ 45 DEG C of stirring in water bath
To gel state；4th, gel is placed in tube furnace, under nitrogen atmosphere protection, 1 DEG C/min is warming up to 400 ~ 800 DEG C, protects
2 ~ 6h of temperature, produces mesoporous CoFe2O4Catalyst.
4. a kind of compound system and preparation method of antibiotic of rapidly and efficiently degrading according to claim 1, it is characterised in that：
CoFe2O4CoFe in/PMS compound systems2O4Mol ratio with PMS is 1 ~ 1.7, CoFe2O4The content of catalyst in the solution is
0.05~0.5 g/L。
5. a kind of compound system and preparation method of antibiotic of rapidly and efficiently degrading according to claim 1, it is characterised in that：
The magnetic saturation intensity of magnetization is more than 10emu/g, is that the outer of 1800Oe separates the separation of solid and liquid time less than 2 off field in Surface field
min。
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108993510A (en) * | 2018-08-16 | 2018-12-14 | 南京工业大学 | A kind of activation persulfate tire C catalyst and preparation and application |
| CN110282806A (en) * | 2019-07-26 | 2019-09-27 | 西南石油大学 | A kind of magnetic transition metal particle activation persulfate wastewater processing technology |
| CN115432803A (en) * | 2022-09-17 | 2022-12-06 | 钱江水利开发股份有限公司 | Method for activating peroxomonosulfate by using sulfur-doped cobalt ferrite and process for degrading organic arsine by using method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110282806B (en) * | 2019-07-26 | 2022-03-08 | 西南石油大学 | Magnetic transition metal particle CoO/MnFe2O4Preparation of (A) and method for treating wastewater by using the same for activating persulfate |
| CN115432803A (en) * | 2022-09-17 | 2022-12-06 | 钱江水利开发股份有限公司 | Method for activating peroxomonosulfate by using sulfur-doped cobalt ferrite and process for degrading organic arsine by using method |
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