CN109647413A - It is catalyzed load type metal catalyst and its preparation of organic wastewater treatment through persulfate - Google Patents
It is catalyzed load type metal catalyst and its preparation of organic wastewater treatment through persulfate Download PDFInfo
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- 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
- B01J23/78—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 alkali- or alkaline earth metals
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- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
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- 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
- B01J23/80—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 zinc, cadmium or mercury
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
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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
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
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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
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Abstract
The invention belongs to technical field of sewage, more particularly, to a kind of load type metal catalyst and preparation method thereof of efficient catalytic persulfate processing organic wastewater with difficult degradation thereby.Its chemical formula is expressed as CuOMO@Fe3O4, for transition metal oxide Fe3O4For carrier, in the carrier surface by the metal oxide-loaded CuO of coprecipitation and non-oxide reducing metal oxide MO, wherein M is non-oxide reducing metal.The catalyst can be realized to PMS efficient catalytic, various organic pollutants of effectively degrading.
Description
Technical field
The invention belongs to technical field of sewage, have more particularly, to a kind of processing of catalysis persulfate is difficult to degrade
The load type metal catalyst and preparation method thereof of machine waste water.
Background technique
With the continuous improvement of modern society's industrialized level, various organic wastewaters especially contain organic dirt difficult to degrade
Being effectively treated for waste water of dye substance is faced with the increasing pressure.Advanced oxidation processes can be realized due to it to organic dirt
Quick processing, the secondary pollution of dye substance are small and have good economy, with good application prospect.
Oxidant employed in advanced oxidation law system mainly includes persulfate (PDS, PMS) and peroxidating at present
Hydrogen.Wherein since PMS has dissymmetrical structure and relatively low bond dissociation energy, it is allowed to be easier to be activated, it has also become various aspects
The hot spot of research.
Based on the high-level oxidation technology of activation PMS, used activation factor mainly has light, heat, ultraviolet light, transition metal
Deng.Wherein common method is presently the most come catalytic activation PMS using catalyst made of transition metal.In huge number
In transition-metal catalyst, loading transition-metal catalyst is due to that can provide bigger specific surface area and reduce metal leaching
Out, it has received widespread attention.Meanwhile in conjunction with the bimetallic catalyst that different metal characteristic is prepared be also improve catalyst
The effective means of performance.Such as catalyst Mn1.8Fe1.2O4And CuFeO2It is shown when all more respective single oxide is as catalyst
More efficient catalytic performance is shown.
A little in conjunction with loading metallic catalyst and bimetallic catalyst, prepare load type bimetal catalyst be expected into
The catalytic performance of one step raising catalyst.But these catalyst are in the application there is also some technical problems and research defect, main
Include: 1) in catalyst system, oxidant PMS utilization rate is not high, can generate secondary pollution, 2) catalyst carrier generally uses non-
Redox metal oxide (Al2O3Deng) and non-metal carrier (active carbon, graphene etc.), to using transition metal as carrier
Loaded catalyst research it is less, 3) in bimetallic catalyst the selection of metal component be often confined to transition metal range,
Ignore the effect of non-oxide reducing metal.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of difficult drops of catalysis persulfate processing
The load type metal catalyst and preparation method thereof of organic wastewater is solved, its object is to transition metal oxide Fe3O4To carry
Body, using coprecipitation carried metal Cu oxide CuO and non-oxide reducing metal oxide MO, to realize to persulfate
Thus efficient catalytic, various organic pollutants of effectively degrading solve oxidant utilization in existing persulfate catalyst system
It is not high, the technical issues of secondary pollution can be generated.
To achieve the above object, according to one aspect of the present invention, a kind of load type metal catalyst is provided, chemistry
Formula is expressed as CuOMO@Fe3O4, for transition metal oxide Fe3O4It is negative by coprecipitation in the carrier surface for carrier
Metal oxide CuO and non-oxide reducing metal oxide MO is carried to obtain；M is that valence state is the+non-oxide reducing metal of divalent member
Element.
Preferably, the non-oxide reducing metal element M is one of Ca, Mg and Zn.
Preferably, the molar ratio of metal oxide is CuO:MO:Fe in the load type metal catalyst3O4=1~2:15~
20:2~4.
Other side according to the invention provides the preparation method of load type metal catalyst described in one kind, packet
Include following steps:
(1) under agitation, containing transition metal oxide Fe3O4It is golden with being added in the mixed system of alkaline solution
Belong to the precursor solution of oxide CuO and non-oxide reducing metal oxide MO, coprecipitation reaction occurs, obtains flock；Its
Middle M is non-oxide reducing metal element；
(2) flock is obtained into the metallic catalyst after aging, separation of solid and liquid, drying and calcination；
Wherein, the metal oxide CuO, non-oxide reducing metal oxide MO and transition metal oxide Fe3O4Rub
You are than being 1~2:15~20:2~4.
Preferably, containing transition metal oxide Fe3O4Added by way of dropwise addition with the mixed system of alkaline solution
Enter the precursor solution of metal oxide CuO and non-oxide reducing metal oxide MO.
Preferably, ageing time is not less than 24 hours.
Preferably, calcination temperature is 400~600 DEG C, and calcination time is 4~6h.
Other side according to the invention provides the application of load type metal catalyst described in one kind, for urging
Change organic wastewater treatment through persulfate, wherein persulfate is oxidant, and organic wastewater pH is controlled between 7~10, and control is urged
Change system temperature between 25 DEG C~30 DEG C.
Other side according to the invention provides a kind of for being catalyzed the catalysis of organic wastewater treatment through persulfate
Agent, including the load type metal catalyst.
Preferably, the persulfate is peroxy-monosulfate.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
(1) the present invention provides one kind with transition metal oxide Fe3O4For carrier, pass through co-precipitation in the carrier surface
The support type composite metal catalyst of the metal oxide-loaded CuO of method and non-oxide reducing metal oxide MO.In the catalyst
Active component is CuO, due to introducing non-oxide reducing metal oxide MO, changes the redox characteristic and table of catalyst
Face pH value improves the catalytic performance of catalyst.
(2) support type composite metal catalyst proposed by the present invention can be used for being catalyzed persulfate processing organic waste difficult to degrade
Water, particularly for showing good catalytic effect when catalysis peroxy-monosulfate.Peroxy-monosulfate is as oxidant, with two sulphur excessively
Hydrochlorate is compared with hydrogen peroxide, and peroxy-monosulfate has dissymmetrical structure and relatively low bond dissociation energy, is allowed to be easier to be activated.
Peroxy-monosulfate is as oxidant, and catalyst and oxidant usage amount are small when use；Catalytic degradation reaction mild condition, equipment letter
It is single, it invests small；The leaching of each metal ion species in the solution included in catalyst is small；Reaction system is to oxidant PMS's
Utilization rate is high, and secondary pollution is small；Reaction carries out under conditions of neutral meta-alkali, applied widely.
(3) support type composite metal catalyst preparation method proposed by the present invention is simple, with Fe3O4It is molten in alkalinity for carrier
Floccule body is obtained by coprecipitation in liquid, then filtering calcining can be obtained.
(4) when support type composite metal catalyst proposed by the present invention is used to be catalyzed organic wastewater treatment through persulfate, by
It is improved in catalytic activity, relative to existing catalyst, the present invention reaches identical pollutant process effect, catalyst and oxidation
Agent dosage greatly reduces.
Detailed description of the invention
Fig. 1 is the preparation flow schematic diagram of 1 load type metal catalyst of the embodiment of the present invention.
Fig. 2 is the CuOCaO@Fe of the embodiment of the present invention 23O4Figure is quenched in/PMS system free radical.
Fig. 3 is the CuOCaO@Fe of the embodiment of the present invention 23O4/ PMS system EPR qualification figure.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
A kind of load type metal catalyst handling organic wastewater provided by the invention, chemical formula are expressed as CuOMO@
Fe3O4, for transition metal oxide Fe3O4It is metal oxide-loaded by coprecipitation in the carrier surface for carrier
CuO and non-oxide reducing metal oxide MO, wherein M is non-oxide reducing metal element, and M is positive divalent.Specific way is just
It is by the presoma Cu (NO of CuO and MO3)2With M (NO3)2It is added drop-wise to containing Fe3O4And Na2CO3Alkaline solution in, carrier week
It encloses to form CuCO3And MCO3Floccule body, then by filtering calcining, make CuCO3And MCO3In the form of CuO and MO and carrier
Fe3O4It is combined together.By XPS analysis, determine that active constituent is CuO in the load type metal catalyst.
In some embodiments, non-oxide reducing metal M is one of Ca, Mg and Zn.
In some embodiments, the molar ratio of metal oxide is CuO:MO:Fe in the load type metal catalyst3O4=1~
2:15~20:2~4.
The preparation method of the above-mentioned load type metal catalyst of the present invention, includes the following steps:
(1) under agitation, containing transition metal oxide Fe3O4It is golden with being added in the mixed system of alkaline solution
Belong to the precursor solution of oxide CuO and non-oxide reducing metal oxide MO, wherein M is non-oxide reducing metal, is occurred altogether
Precipitation reaction obtains flock；The precursor solution of metal oxide CuO and non-oxide reducing metal oxide MO can be gold
Belong to element Cu and the salting liquid, such as nitrate, chloride, sulfate of non-oxide reducing metal M etc..
(2) flock is obtained into the metal catalytic after aging 24 hours or more, separation of solid and liquid, drying and calcination
Agent；
Wherein, the metal oxide CuO, non-oxide reducing metal oxide MO and transition metal oxide Fe3O4Rub
You are than being 1~2:15~20:2~4.
In some preferred embodiments, containing transition metal oxide Fe3O4Pass through with the mixed system of alkaline solution
The precursor solution of metal oxide CuO and non-oxide reducing metal oxide MO is added in the mode of agitation and dropping.Agitation and dropping
Mode enable metal oxide CuO and non-oxide reducing metal oxide MO being more uniformly deposited on carrier Fe3O4
Surface.
In some embodiments, calcination temperature is 4~6h, and calcination time is 400~600 DEG C.
Load type metal catalyst proposed by the present invention handles organic wastewater with difficult degradation thereby for being catalyzed persulfate to be a kind of
Catalyst, can be used for being catalyzed organic wastewater treatment through persulfate, peroxy-monosulfate or peroxydisulfate are oxidation when use
Agent, organic wastewater pH are controlled between 7~10, when controlling catalyst system temperature between 25 DEG C~30 DEG C, catalytic degradation efficiency
It is high.In preferred embodiment, catalyst, PMS and organic wastewater are mixed and stirred for reacting, to the end of PMS runs out of i.e. reaction.
Wherein, CuOMO@Fe3O4As catalyst, the molar ratio of metal oxide is CuO:MO:Fe3O4=1~2:15~20:2~4,
Dosage is 0.05g/L, PS (peroxydisulfate) or PMS (peroxy-monosulfate) as oxidant, initial concentration 0.5mM/L.It is excellent
The oxidant of choosing is PMS.
The present invention is with transition metal oxide Fe3O4For carrier, aoxidized in the carrier surface by coprecipitation carried metal
Object CuO and non-oxide reducing metal oxide MO prepares support type composite metal catalyst CuOMO@Fe3O4.Different from current
Carbon material (rGO, AC, ACF) and non-low transition metal substance (Al are usually utilized in research2O3, MgAl-LDH) be used as carrier, urge
Agent CuOMO@Fe3O4Utilize transition metal oxide Fe3O4As carrier.And it is different from current research often by two
Kind or a variety of transition metal oxide (Mn1.8Fe1.2O4、CuFeO2、CuCo@MnO2) it is used as research object, disclose different transition gold
Influence of the interaction to catalytic activation persulfate especially peroxy-monosulfate performance between category, catalyst CuOMO@Fe3O4Draw
Enter non-oxide reducing metal oxide MO, active constituent is CuO in the load type metal catalyst, non-oxide reducing metal oxidation
The introducing of object MO, changes the redox property and surface pH value of catalyst, and carrier Fe3O4Presence promote activity
The reduction of ingredient CuO.Catalytic degradation path includes free radical path (OH, SO4 ·-) and non-free radical path (1O2), wherein1O2
For main active constituent.
The following are embodiments:
Embodiment 1
Catalyst CuOMO@Fe in the present invention3O4Synthesis step it is as follows:
(1) in the beaker of 500ML, the deionized water of 200ML is added, the Na of 40mM is then added2CO3And 0.5g
Fe3O4, it is sufficiently stirred.
(2) beaker for separately taking a 500ML, is added the deionized water of 200ML, is then respectively adding 1.5mM's and 20mM
Cu(NO3)2·3H2O and M (NO3)2·yH2O is sufficiently stirred, and makes it completely dissolved.
(3) containing Na2CO3And Fe3O4Solution be put into 60 DEG C of constant temperature blender with magnetic force and do not stop to stir with appropriate revolving speed
It mixes, meanwhile, handle contains Cu (NO in 60min3)2·3H2O and M (NO3)2·yH2The solution of O instills dropwise contains Na2CO3With
Fe3O4Solution in, pH=10 ± 0.02 or so in solution (adjusting pH 2M NaOH solution) is remained during this.
(4) after solution drips off, obtained white suspension is stood into aging for 24 hours at room temperature, then, uses deionized water
Repeatedly filtering and cleaning makes to retain precipitating pH weakly acidic pH, is placed in 100ml porcelain crucible, is put into 80 DEG C of oven overnights dryings, will
Gained white solid is crushed into powder, and is put into 500 DEG C of Muffle furnace calcining 5h.
The catalyst CuOMO@Fe wherein obtained3O4Middle metal oxide CuO, non-oxide reducing metal oxide MO and mistake
Cross metal oxide Fe3O4Molar ratio be 1.5:20:2, M can be any one or more in Ca, Mg and Zn here.
Embodiment 2
By configured reaction liquid (I) or (II) or (III) 25ML, it is separately added into 0.00125g catalyst CuOCaO@
Fe3O4With the PMS of 0.0125mM, mixed liquor is placed in the magnetic force thermostat water bath that temperature is 30 DEG C and reacts 1h, after having reacted,
Sampling analysis the results are shown in Table 1.Reaction liquid (I) is that concentration is 30ppm to acetaminophenol solution, reaction liquid (II)
The tetrachlorophenol solution for being 40ppm for concentration, reaction liquid (III) are the phenol solution that concentration is 10ppm.
With catalyst CuOCaO@Fe3O4For, to CuOCaO@Fe3O4/ PMS system carries out free radical quenching experiments and EPR
Experiment.Fig. 2 is that figure is quenched in free radical, it was demonstrated that OH, SO4 ·-It is little to the degradation contribution of substrate (acamol), and it is single
Line state oxygen (1O2) degradation of substrate is contributed greatly.The EPR qualification figure of Fig. 3 further demonstrates1O2Presence.
Embodiment 2
By configured reaction liquid (I) or (II) or (III) 25ML, it is separately added into 0.00125g catalyst CuOMgO@
Fe3O4With the PMS of 0.0125mM, mixed liquor is placed in the magnetic force thermostat water bath that temperature is 30 DEG C and reacts 1h, after having reacted,
Sampling analysis the results are shown in Table 1.Reaction liquid (I) is that concentration is 30ppm to acetaminophenol solution, reaction liquid (II)
The tetrachlorophenol solution for being 40ppm for concentration, reaction liquid (III) are the phenol solution that concentration is 10ppm.
Embodiment 3
By configured reaction liquid (I) or (II) or (III) 25ML, it is separately added into 0.00125g catalyst CuOZnO@
Fe3O4With the PMS of 0.0125mM, mixed liquor is placed in the magnetic force thermostat water bath that temperature is 30 DEG C and reacts 1h, after having reacted,
Sampling analysis the results are shown in Table 1.Reaction liquid (I) is that concentration is 30ppm to acetaminophenol solution, reaction liquid (II)
The tetrachlorophenol solution for being 40ppm for concentration, reaction liquid (III) are the phenol solution that concentration is 10ppm.
Table 1
Catalyst CuOMO@Fe as can be seen from Table 13O4By the catalytic activation to PMS, for different organic pollutants
Matter extraction efficiency with higher.
Embodiment 4
By configured reaction liquid (I) 25ML, change catalyst CuOMO@Fe3O4Dosage be respectively 0.001g,
Then the PMS of 0.0125mM is added in 0.00125g, 0.0025g, 0.005g, it is permanent that mixed liquor is placed in the magnetic force that temperature is 30 DEG C
1h is reacted in warm water bath, after having reacted, sampling analysis the results are shown in Table 2.Reaction liquid (I) is that concentration is 30ppm to acetyl
Amino-phenol solution.
Table 2
As can be seen from Table 2 in CuOMO@Fe3O4It, can when the dosage of catalyst reaches 0.05g/L in/PMS system
Acamol to be converted completely under experimental conditions.
Embodiment 5
By configured reaction liquid (I) 25ML, change PMS dosage be respectively 0.01mM, 0.0125mM,
Then the catalyst CuOMO@Fe of 0.00125g is added in 0.025mM, 0.05mM3O4, mixed liquor is placed in the magnetic that temperature is 30 DEG C
1h is reacted in power thermostat water bath, after having reacted, sampling analysis the results are shown in Table 3.Reaction liquid (I) is pair that concentration is 30ppm
Acetaminophenol solution.
Table 3
As can be seen from Table 3 in CuOMO@Fe3O4In/PMS system, the optimum dosage of oxidant PMS is 0.5mM/L, this
When acamol can be converted completely under experimental conditions.
Embodiment 6
By configured reaction liquid (I) 25ML, it is separately added into 0.00125g catalyst CuOMO@Fe3O4And 0.0125mM
PMS, mixed liquor is placed in the different magnetic force thermostat water bath of temperature reacts 1h respectively, temperature gradient be 20 DEG C, 30 DEG C, 40
DEG C, after having reacted, sampling analysis the results are shown in Table 4.Reaction liquid (I) is that concentration is 30ppm to acetaminophenol solution.
Table 4
As can be seen from Table 4 in CuOMO@Fe3O4It, can be in experiment item when reaction temperature reaches 30 DEG C in/PMS system
Acamol is converted completely under part.
Embodiment 7
By configured reaction liquid (I) 25ML, it is separately added into 0.00125g catalyst CuOMO@Fe3O4And 0.0125mM
PMS, utilize the HNO of 1M/L3Adjusting the pH of reaction solution with the HaOH of 1M/L is respectively 3,5,7,9,11, then by mixed liquor
It is placed in the magnetic force thermostat water bath that temperature is 30 DEG C and reacts 1h, after having reacted, sampling analysis the results are shown in Table 5.Reaction liquid
It (I) be concentration is 30ppm to acetaminophenol solution.
Table 5
As can be seen from Table 5 in CuOMO@Fe3O4In/PMS system, when the pH of reaction system is 7~9, it can test
Under the conditions of acamol is converted completely.
Comparative example 1
By configured reaction liquid (I) or (II) or (III) 25ML, be separately added into 0.0125mM PMS and
0.00125g catalyst CuOMO@Fe3O4Or CuO@Fe3O4, mixed liquor is placed in the magnetic force thermostat water bath that temperature is 30 DEG C
1h is reacted, after having reacted, sampling analysis the results are shown in Table 6.Reaction liquid (I) is that concentration is the molten to acetaminophenol of 30ppm
Liquid, reaction liquid (II) are the tetrachlorophenol solution that concentration is 40ppm, and reaction liquid (III) is that the phenol that concentration is 10ppm is molten
Liquid.
Table 6
As can be seen from Table 6 in catalyst CuO@Fe3O4The middle non-oxide reducing metal oxide MO of introducing can be significantly improved
Its catalytic activity to PMS, to improve the degradation effect to substrate.
Comparative example 2
By load type metal catalyst provided by the invention and existing some catalyst in catalytic degradation organic matter effect
On be compared, the results are shown in Table 7.
Table 7
The present invention is in catalyst CuO@Fe3O4It is middle to introduce non-oxide reducing metal oxide MO, active component can be enhanced
Cu in CuO2+/Cu+Reproducibility, facilitate the electronics transfer between oxidant peroxy-monosulfate and catalyst in this way.Not only such as
The introducing of this MO can also enhance the alkalinity of catalyst surface, facilitate Catalyst Adsorption oxidant peroxy-monosulfate.By above
Effect, realizes catalyst CuOMO@Fe3O4To the efficient catalytic of peroxy-monosulfate.
As can be seen from Table 7, catalyst CuOMO@Fe is utilized in the present invention3O4It is catalyzed permonosulphuric acid salt treatment organic waste
Water, relative to other catalyst systems, when using catalyst of the invention, catalyst and oxidant is added in reaction system
Amount is smaller, but substrate conversion rate is more quickly, and catalyzed conversion is more efficient.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (9)
1. a kind of load type metal catalyst, which is characterized in that its chemical formula is expressed as CuOMO@Fe3O4, for transition metal
Oxide Fe3O4For carrier, pass through the metal oxide-loaded CuO of coprecipitation and non-oxide reducing metal oxygen in the carrier surface
Compound MO is obtained, and M is that valence state is the+non-oxide reducing metal element of divalent.
2. load type metal catalyst as described in claim 1, which is characterized in that the non-oxide reducing metal element M is
One of Ca, Mg and Zn.
3. load type metal catalyst as described in claim 1, which is characterized in that metal oxygen in the load type metal catalyst
The molar ratio of compound is CuO:MO:Fe3O4=1~2:15~20:2~4.
4. the preparation method of the load type metal catalyst as described in claims 1 to 3 any one, which is characterized in that including
Following steps:
(1) under agitation, containing transition metal oxide Fe3O4Metal oxygen is added with the mixed system of alkaline solution
Coprecipitation reaction occurs for the precursor solution of compound CuO and non-oxide reducing metal oxide MO, obtains flock；Wherein M is
Non-oxide reducing metal element；
(2) flock is obtained into the metallic catalyst after aging, separation of solid and liquid, drying and calcination；
Wherein, the metal oxide CuO, non-oxide reducing metal oxide MO and transition metal oxide Fe3O4Molar ratio
For 1~2:15~20:2~4.
5. preparation method as claimed in claim 4, which is characterized in that containing transition metal oxide Fe3O4With alkaline solution
Mixed system in metal oxide CuO is added by way of dropwise addition and the presoma of non-oxide reducing metal oxide MO is molten
Liquid.
6. preparation method as claimed in claim 4, which is characterized in that step (2) ageing time is not less than 24 hours.
7. preparation method as claimed in claim 4, which is characterized in that step (2) calcination temperature is 400~600 DEG C, when calcining
Between be 4~6h.
8. the application of the load type metal catalyst as described in claims 1 to 3 any one, which is characterized in that for being catalyzed
Organic wastewater treatment through persulfate, wherein persulfate is oxidant, and organic wastewater pH is controlled between 7~10, control catalysis
System temperature is between 25 DEG C~30 DEG C.
9. application as claimed in claim 8, which is characterized in that the persulfate is peroxy-monosulfate.
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| CN110127836A (en) * | 2019-06-17 | 2019-08-16 | 南开大学 | A method of utilizing magnetic oxygenated member permonosulphuric acid salt treatment organic wastewater with high salt |
| CN110201699A (en) * | 2019-06-11 | 2019-09-06 | 武汉纺织大学 | A kind of CuO-CN peroxide composite catalyst and its preparation method and application for high-level oxidation technology |
| CN110835178A (en) * | 2019-11-20 | 2020-02-25 | 中山大学 | Method for directly oxidizing and degrading aniline organic pollutants in water |
| CN111229162A (en) * | 2020-01-22 | 2020-06-05 | 青岛农业大学 | Method for preparing magnetic biochar from garlic straws |
| CN111229161A (en) * | 2020-01-22 | 2020-06-05 | 青岛农业大学 | Using CuFeO2Method for adsorbing oxytetracycline by/BC composite magnetic material |
| CN114195250A (en) * | 2021-11-25 | 2022-03-18 | 南京理工大学 | Application of reverse-loaded catalyst in Fenton-like catalytic degradation of pollutants |
| CN114917926A (en) * | 2022-04-24 | 2022-08-19 | 湖南大学 | LDH catalyst loaded with monoatomic ruthenium, preparation method thereof and application thereof in pathogen killing |
| CN115970690A (en) * | 2022-12-15 | 2023-04-18 | 东南大学 | Crystal boron modified copper oxide catalyst and preparation method and application thereof |
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| CN110201699A (en) * | 2019-06-11 | 2019-09-06 | 武汉纺织大学 | A kind of CuO-CN peroxide composite catalyst and its preparation method and application for high-level oxidation technology |
| CN110201699B (en) * | 2019-06-11 | 2022-04-15 | 武汉纺织大学 | CuO-CN peroxide composite catalyst for advanced oxidation technology and preparation method and application thereof |
| CN110127836A (en) * | 2019-06-17 | 2019-08-16 | 南开大学 | A method of utilizing magnetic oxygenated member permonosulphuric acid salt treatment organic wastewater with high salt |
| CN110835178A (en) * | 2019-11-20 | 2020-02-25 | 中山大学 | Method for directly oxidizing and degrading aniline organic pollutants in water |
| CN111229162A (en) * | 2020-01-22 | 2020-06-05 | 青岛农业大学 | Method for preparing magnetic biochar from garlic straws |
| CN111229161A (en) * | 2020-01-22 | 2020-06-05 | 青岛农业大学 | Using CuFeO2Method for adsorbing oxytetracycline by/BC composite magnetic material |
| CN114195250A (en) * | 2021-11-25 | 2022-03-18 | 南京理工大学 | Application of reverse-loaded catalyst in Fenton-like catalytic degradation of pollutants |
| CN114917926A (en) * | 2022-04-24 | 2022-08-19 | 湖南大学 | LDH catalyst loaded with monoatomic ruthenium, preparation method thereof and application thereof in pathogen killing |
| CN114917926B (en) * | 2022-04-24 | 2023-10-20 | 湖南大学 | LDH catalyst loaded with monoatomic ruthenium, preparation method thereof and application thereof in pathogen disinfection |
| CN115970690A (en) * | 2022-12-15 | 2023-04-18 | 东南大学 | Crystal boron modified copper oxide catalyst and preparation method and application thereof |
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