CN115463661A - Zinc oxide loaded nickel lanthanum cobaltate and preparation method and application thereof - Google Patents

Zinc oxide loaded nickel lanthanum cobaltate and preparation method and application thereof Download PDF

Info

Publication number
CN115463661A
CN115463661A CN202211152425.5A CN202211152425A CN115463661A CN 115463661 A CN115463661 A CN 115463661A CN 202211152425 A CN202211152425 A CN 202211152425A CN 115463661 A CN115463661 A CN 115463661A
Authority
CN
China
Prior art keywords
nickel
lanthanum
zinc oxide
cobaltate
cobalt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202211152425.5A
Other languages
Chinese (zh)
Other versions
CN115463661B (en
Inventor
丁宇
朱浩
唐晓亮
曲毅
杨宏旺
王翠辉
王玥
周睿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lanrun Environmental Protection Technology Yantai Co ltd
Lanzhou University
Original Assignee
Lanrun Environmental Protection Technology Yantai Co ltd
Lanzhou University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lanrun Environmental Protection Technology Yantai Co ltd, Lanzhou University filed Critical Lanrun Environmental Protection Technology Yantai Co ltd
Priority to CN202211152425.5A priority Critical patent/CN115463661B/en
Publication of CN115463661A publication Critical patent/CN115463661A/en
Application granted granted Critical
Publication of CN115463661B publication Critical patent/CN115463661B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76Catalysts 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
    • B01J23/83Catalysts 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 rare earths or actinides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/002Mixed oxides other than spinels, e.g. perovskite
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/03Precipitation; Co-precipitation
    • B01J37/036Precipitation; Co-precipitation to form a gel or a cogel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08Heat treatment
    • B01J37/082Decomposition and pyrolysis
    • B01J37/088Decomposition of a metal salt
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/722Oxidation by peroxides
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2523/00Constitutive chemical elements of heterogeneous catalysts
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/34Organic compounds containing oxygen
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/36Organic compounds containing halogen
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/38Organic compounds containing nitrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Catalysts (AREA)

Abstract

The invention discloses zinc oxide loaded nickel lanthanum cobaltate, and a preparation method and application thereof, and belongs to the technical field of catalysts. The preparation method comprises the following steps: taking a nickel-containing compound, a cobalt-containing compound and a lanthanum-containing compound as raw materials, magnetically stirring at 20-60 ℃ to obtain a nickel-lanthanum cobaltate precursor mixed solution, adding zinc oxide nanoparticles into the nickel-lanthanum cobaltate precursor mixed solution, magnetically stirring at 65-95 ℃ to obtain zinc oxide-loaded nickel-lanthanum cobaltate gel, and sequentially drying, grinding and calcining the zinc oxide-loaded nickel-lanthanum cobaltate gel at high temperature to obtain the zinc oxide-loaded nickel-lanthanum cobaltate. The invention has the advantages that: the method has simple and convenient process, easy operation and cheap and easily obtained raw materials; the prepared zinc oxide loaded nickel-lanthanum cobaltate active component is not easy to agglomerate, free of toxic metal ion leaching, good in stability and capable of forming a synergistic system with PMS to efficiently catalyze and degrade ofloxacin.

Description

Zinc oxide loaded nickel-lanthanum cobaltate, and preparation method and application thereof
Technical Field
The invention relates to a compound, a preparation method and application thereof, in particular to zinc oxide loaded nickel lanthanum cobaltate, a preparation method thereof and application of the zinc oxide loaded nickel lanthanum cobaltate as a catalyst and a PMS (permanent magnet system) formed synergistic system in ofloxacin degradation, belonging to the technical field of catalysts.
Background
In recent years, pharmaceuticals and Personal Care Products (PPCPs) have received increasing attention as emerging aquatic pollutants because they may pose threats to humans and aquatic ecosystems. PPCPs comprise a number of chemical classes, for example: antibiotics, anti-inflammatory agents, lipid regulating agents, and the like; personal care product ingredients such as insect repellents, preservatives, and metabolites or conversion products thereof. Among the drugs, antibiotics are one of the most widely used classes, ofloxacin being a fluoroquinolone antibiotic that is frequently detected in the environment, entering the environment mainly through domestic, hospital and industrial waste waters, and to a lesser extent through discharge from the production site and improper disposal of the drugs. Since ofloxacin has the characteristics of difficult biodegradation, wide application range, difficult removal by a conventional method and the like, the problem of removing ofloxacin by currently developing a reliable and popularizing technology is urgently needed to be solved in the environmental field.
Advanced Oxidation Processes (AOPs) are a new water treatment technology proposed in 1987 that relies on the in situ generation of highly Reactive Oxygen Species (ROS) to degrade recalcitrant contaminants such as hydroxyl radicals: (OH: (R)) · OH), sulfate radical (SO) 4 ·- ) And singlet oxygen ( 1 O 2 ). Based on SO 4 ·- The AOPs have higher oxidation potential, longer half-life and wider pH application range. As a catalyst which is widely researched, the transition metal oxide can effectively activate Peroxymonosulfate (PMS) to remove pollutants.
Perovskite oxides have abundant physicochemical properties and flexible structures, and they are one of the most promising heterogeneous catalysts for activating PMS. However, the original perovskite oxide has inherent defects of easy agglomeration (the specific surface area is reduced, the contact area with PMS is reduced), toxic metal ion leaching (secondary pollution to the environment) and the like, and the application of the perovskite oxide in actual water treatment is limited.
The zinc oxide has the advantages of good stability, low price, easy obtaining and the like, and can be used as a potential carrier of the perovskite oxide.
In conclusion, the zinc oxide-supported perovskite metal oxide has great potential in the aspects of activating antibiotics in PMS (permanent magnet system) degradation water and the like, and the zinc oxide-supported perovskite metal oxide as an efficient catalyst in the advanced oxidation technology must have great application value in the industrial wastewater treatment in the future.
Disclosure of Invention
The invention aims to provide a catalyst which has the advantages of difficult agglomeration of active components, no leaching of toxic metal ions, good stability and capability of forming a synergistic system with PMS to efficiently catalyze and degrade ofloxacin, and a method for preparing the catalyst, which has the advantages of cheap and easily-obtained raw materials, simple operation and easy implementation.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a method for preparing zinc oxide loaded nickel lanthanum cobaltate is characterized by comprising the following steps:
(1) Taking a nickel-containing compound, a cobalt-containing compound and a lanthanum-containing compound as raw materials, wherein the mass ratio of lanthanum, nickel and cobalt is 5:3:2, using citric acid as a complexing agent, wherein the mass ratio of the citric acid to the total metal ion substances is 1-1.5: 1, taking water, ethanol or an ethanol aqueous solution as a solvent, and magnetically stirring for 1-3 hours at 20-60 ℃ to prepare a cobalt-substituted partial nickel site nickel-cobalt lanthanum precursor mixed solution;
(2) Adding zinc oxide nanoparticles into the mixed solution of the lanthanum nickel cobaltate precursor prepared in the step (1), wherein the mass ratio of the zinc oxide nanoparticles to the predicted lanthanum nickel cobaltate is 5:1, magnetically stirring for 1-5 hours at 65-95 ℃ to prepare zinc oxide-loaded nickel-lanthanum cobaltate gel;
(3) And (3) sequentially drying, grinding and calcining the zinc oxide-loaded lanthanum nickel cobaltate gel prepared in the step (2) at a high temperature to obtain the zinc oxide-loaded lanthanum nickel cobaltate.
Preferably, in step (1), the nickel-containing compound includes: nickel nitrate and nickel acetylacetonate; the cobalt-containing compound includes: cobalt nitrate and cobalt acetylacetonate; the lanthanum-containing compound includes: lanthanum nitrate and lanthanum chloride.
Preferably, in the step (3), drying is carried out in an oven, the drying temperature is 50-100 ℃, and the drying time is 6-15 h; the high-temperature calcination is carried out in a tubular furnace in the air atmosphere, the calcination temperature is 700-900 ℃, and the calcination time is 4-6 h.
A zinc oxide-supported lanthanum nickel cobaltate prepared by any one of the methods described above.
The invention has the advantages that:
(1) According to the method for preparing the zinc oxide loaded lanthanum nickel cobaltate, zinc oxide is added into a mixed solution of a lanthanum nickel cobaltate precursor to form mixed-state gel, and the mixed-state gel is dried and then calcined at high temperature to form the zinc oxide loaded lanthanum nickel cobaltate;
(2) The zinc oxide loaded lanthanum nickel cobaltate prepared by the method provided by the invention has good stability, and the lanthanum nickel cobaltate is uniformly dispersed on the zinc oxide and is not easy to agglomerate, so that the active site of the lanthanum nickel cobaltate is in contact with PMS in a larger area, namely, the capability of activating PMS is enhanced, and finally the higher activity of catalytic degradation of antibiotics is realized;
(3) The zinc oxide loaded nickel lanthanum cobaltate prepared by the method provided by the invention can effectively inhibit leaching of toxic metal ions nickel and cobalt, and avoids secondary pollution to the environment;
(4) When the zinc oxide loaded lanthanum cobaltous nickelate prepared by the invention is used for activating ofloxacin in PMS degraded water, the removal rate of the ofloxacin reaches 97-98%, and the zinc oxide loaded lanthanum cobaltous nickelate still has high catalytic activity after repeated degradation for 5 times.
Drawings
FIG. 1 shows LaNi prepared in example 1 0.6 Co 0.4 O 3 XRD patterns before and after ZnO catalytic reaction;
FIG. 2 shows LaNi prepared in example 1 0.6 Co 0.4 O 3 The ZnO is repeatedly used in a degradation graph of activating PMS to degrade ofloxacin;
FIG. 3 shows LaNi prepared in example 1 0.6 Co 0.4 O 3 SEM picture of (1);
fig. 4 is an SEM image of zinc oxide nanoparticles used in the present invention;
FIG. 5 shows LaNi prepared in example 1 0.6 Co 0.4 O 3 SEM image of/ZnO.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
Example 1
1.300g (3.0 mmol) of lanthanum nitrate hexahydrate, 0.524g (1.8 mmol) of nickel nitrate hexahydrate and 0.349g (1.2 mmol) of cobalt nitrate hexahydrate are weighed, the three solids are completely dissolved in 10ml of water and 20ml of ethanol, and the mixture is magnetically stirred at room temperature for 15min to obtain a light green mixed solution. 1.261g (6.6 mmol) of citric acid is weighed, slowly added into the light green mixed solution, and magnetically stirred for 2 hours at room temperature to obtain a lanthanum nickel cobaltate precursor mixed solution, and 0.7371g (3.0 mmol) of lanthanum nickel cobaltate is expected to be obtained.
3.686g of zinc oxide nanoparticles are weighed, the zinc oxide nanoparticles are added into the mixed solution of the lanthanum nickel cobalt oxide precursor obtained by the previous preparation, and the mass ratio of the zinc oxide nanoparticles to the predicted lanthanum nickel cobalt oxide is 5: magnetically stirring the mixture for 3 hours at the temperature of 1,90 ℃ to obtain zinc oxide loaded nickel lanthanum cobaltate gel.
And (3) putting the zinc oxide-loaded nickel lanthanum cobaltate gel into an oven, and drying for 12h at the temperature of 60 ℃ to obtain a white solid. The white solid was ground to a powder with an agate mortar. Putting the powder into a porcelain boat, putting the porcelain boat into a tube furnace, heating the tube furnace to 700 ℃ at the speed of 5 ℃/min in the air atmosphere, calcining for 4h, naturally cooling to room temperature after calcining is finished, and obtaining white solid particles, namely zinc oxide loaded nickel lanthanum cobaltite, which is recorded as LaNi 0.6 Co 0.4 O 3 /ZnO。
0.2g of LaNi 0.6 Co 0.4 O 3 adding/ZnO and 0.5g PMS into 100ml ofloxacin aqueous solution with the concentration of 20ml/L, and oscillating for 30min at room temperature in a swinging way. The detection proves that the degradation rate of the ofloxacin is 97.90%.
LaNi 0.6 Co 0.4 O 3 XRD patterns before and after the/ZnO catalytic reaction are shown in figure 1.
As can be seen from FIG. 1, laNi before and after the catalytic reaction 0.6 Co 0.4 O 3 The characteristic peak of/ZnO is not changed, which shows that LaNi 0.6 Co 0.4 O 3 The structure of the/ZnO is not changed, and the stability of the catalyst is proved.
And centrifugally collecting the reacted zinc oxide loaded nickel-lanthanum cobaltate, repeatedly recovering the zinc oxide loaded nickel-lanthanum cobaltate for 5 times of an ofloxacin degradation experiment, washing the recovered zinc oxide loaded nickel-lanthanum cobaltate with clear water after each pollutant treatment, and drying. Through detection, when the ofloxacin is degraded for the 2 nd time, the degradation rate of the ofloxacin is 96.27 percent; when the ofloxacin is degraded for the 3 rd time, the degradation rate of the ofloxacin is 97.07 percent; when the ofloxacin is degraded for the 4 th time, the degradation rate of the ofloxacin is 96.38 percent; when the ofloxacin is degraded for the 5 th time, the degradation rate of the ofloxacin is 96.49 percent.
And (3) plotting degradation data obtained in each degradation experiment by taking the sampling time as the abscissa and the degradation rate of the ofloxacin as the ordinate to obtain the LaNi 0.6 Co 0.4 O 3 The degradation profile of/ZnO on ofloxacin is shown in FIG. 2.
As can be seen from FIG. 2, laNi 0.6 Co 0.4 O 3 After ZnO is repeatedly recycled, the ofloxacin can be rapidly degraded in a short time, and the degradation rate of the ofloxacin is kept above 96%.
Preparing a lanthanum nickel cobalt oxide precursor mixed solution by adopting the same method as the previous method, then putting the lanthanum nickel cobalt oxide precursor mixed solution into an oven, drying for 12 hours at 60 ℃ to obtain a solid, grinding the solid into powder by using an agate mortar, putting the powder into a porcelain boat, putting the porcelain boat into a tubular furnace, heating the tubular furnace to 700 ℃ at the speed of 5 ℃/min in the air atmosphere, calcining for 4 hours, naturally cooling to room temperature after the calcination is finished to obtain solid particles, namely lanthanum nickel cobalt oxide, which is marked as LaNi 0.6 Co 0.4 O 3 . The LaNi 0.6 Co 0.4 O 3 See fig. 3. As can be seen from FIG. 3, laNi 0.6 Co 0.4 O 3 Exhibit an agglomerated state.
The SEM image of the zinc oxide nanoparticles used in the present invention is shown in fig. 4. As can be seen from fig. 4, the zinc oxide is nanoparticles of about 300 nm.
Example 1 preparation of LaNi 0.6 Co 0.4 O 3 SEM image of/ZnO is shown in FIG. 5. As can be seen from FIG. 5, laNi 0.6 Co 0.4 O 3 Uniformly dispersed on the zinc oxide nano-particles.
Example 2
This example differs from example 1 only in that: the amounts of reactants and solvent in each step were all magnified by a factor of 3. The rest is the same as the embodiment 1, and the description is omitted.
0.6g of LaNi 0.6 Co 0.4 O 3 adding/ZnO and 1.5g PMS into 100ml ofloxacin aqueous solution with the concentration of 20ml/L, and shaking at room temperatureOscillating for 30min. The detection proves that the degradation rate of the ofloxacin is 97.51 percent.
Centrifugally collecting reacted LaNi 0.6 Co 0.4 O 3 and/ZnO, repeatedly recycled for 5 times of the experiment for degrading ofloxacin. Through detection, when the ofloxacin is degraded for the 5 th time, the degradation rate of the ofloxacin is 96.53 percent.
Example 3
This example only differs from example 1 in that: when preparing zinc oxide-loaded nickel lanthanum cobaltate gel, reducing the reaction temperature to 70 ℃; when the zinc oxide supported nickel-lanthanum cobaltate gel is dried, the drying temperature is increased to 70 ℃, and the drying time is shortened to 10 hours. The rest is the same as the embodiment 1, and the description is omitted.
0.2g of LaNi 0.6 Co 0.4 O 3 adding/ZnO and 0.5g PMS into 100ml ofloxacin aqueous solution with the concentration of 20ml/L, and oscillating for 30min at room temperature in a swinging way. The detection proves that the degradation rate of the ofloxacin is 97.51 percent.
Centrifugally collecting reacted LaNi 0.6 Co 0.4 O 3 and/ZnO, repeatedly recycled for 5 times of the experiment for degrading ofloxacin. Through detection, when the ofloxacin is degraded for the 5 th time, the degradation rate of the ofloxacin is 96.01 percent.
Example 4
This example differs from example 1 only in that: when the powder was calcined, the calcination temperature was raised to 750 ℃. The rest is the same as the embodiment 1, and the description is omitted.
0.2g of LaNi 0.6 Co 0.4 O 3 adding/ZnO and 0.5g PMS into 100ml ofloxacin aqueous solution with the concentration of 20ml/L, and oscillating for 30min at room temperature in a swinging way. Through detection, the degradation rate of the ofloxacin is 95.99 percent.
Centrifugally collecting reacted LaNi 0.6 Co 0.4 O 3 and/ZnO, repeatedly recycled for 5 times of the experiment for degrading ofloxacin. Through detection, when the ofloxacin is degraded for the 5 th time, the degradation rate of the ofloxacin is 96.99 percent.
It should be noted that the above examples of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. Obvious changes or modifications of the invention are within the scope of the invention.

Claims (6)

1. A method for preparing zinc oxide loaded nickel lanthanum cobaltate is characterized by comprising the following steps:
(1) Taking a nickel-containing compound, a cobalt-containing compound and a lanthanum-containing compound as raw materials, wherein the mass ratio of lanthanum, nickel and cobalt is 5:3:2, using citric acid as a complexing agent, wherein the quantity ratio of the citric acid to total metal ion substances is (1-1.5): 1, taking water, ethanol or an ethanol aqueous solution as a solvent, and magnetically stirring for 1-3 hours at 20-60 ℃ to prepare a cobalt-substituted partial nickel site nickel-cobalt lanthanum precursor mixed solution;
(2) Adding zinc oxide nanoparticles into the mixed solution of the lanthanum nickel cobaltate precursor prepared in the step (1), wherein the mass ratio of the zinc oxide nanoparticles to the predicted lanthanum nickel cobaltate is 5:1, magnetically stirring for 1-5 hours at 65-95 ℃ to prepare zinc oxide loaded nickel lanthanum cobaltate gel;
(3) And (3) sequentially drying, grinding and calcining the zinc oxide-loaded lanthanum nickel cobaltate gel prepared in the step (2) at a high temperature to obtain the zinc oxide-loaded lanthanum nickel cobaltate.
2. The method of claim 1, wherein in step (1), the nickel-containing compound comprises: nickel nitrate and nickel acetylacetonate; the cobalt-containing compound includes: cobalt nitrate and cobalt acetylacetonate; the lanthanum-containing compound includes: lanthanum nitrate and lanthanum chloride.
3. The method according to claim 1, wherein in step (3), the drying is carried out in an oven at a drying temperature of 50 to 100 ℃ for a drying time of 6 to 15 hours.
4. The method according to claim 1, wherein in the step (3), the high-temperature calcination is performed in a tube furnace under an air atmosphere, the calcination temperature is 700 to 900 ℃, and the calcination time is 4 to 6 hours.
5. A zinc oxide-supported lanthanum nickel cobaltate prepared by the method of any one of claims 1 to 4.
6. The use of the zinc oxide supported lanthanum nickel cobaltate and PMS as a synergistic system for degrading ofloxacin as claimed in claim 5.
CN202211152425.5A 2022-09-21 2022-09-21 Zinc oxide loaded lanthanum nickel cobaltate and preparation method and application thereof Active CN115463661B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211152425.5A CN115463661B (en) 2022-09-21 2022-09-21 Zinc oxide loaded lanthanum nickel cobaltate and preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211152425.5A CN115463661B (en) 2022-09-21 2022-09-21 Zinc oxide loaded lanthanum nickel cobaltate and preparation method and application thereof

Publications (2)

Publication Number Publication Date
CN115463661A true CN115463661A (en) 2022-12-13
CN115463661B CN115463661B (en) 2024-01-30

Family

ID=84334308

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211152425.5A Active CN115463661B (en) 2022-09-21 2022-09-21 Zinc oxide loaded lanthanum nickel cobaltate and preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN115463661B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109225186A (en) * 2018-10-11 2019-01-18 南京工业大学 Titanium dioxide and silicon dioxide composite material catalyst, preparation and application
CN111135834A (en) * 2019-12-10 2020-05-12 常州大学 LaNixCo1-xO3Photo-thermal synergistic degradation toluene of La perovskite
US20200207647A1 (en) * 2018-12-29 2020-07-02 Tongji University Method for Degrading Fluoroquinolone Antibiotics by Activating Peroxyacetic Acid with Lanthanum Ruthenate Perovskite
CN113332990A (en) * 2021-06-30 2021-09-03 华南农业大学 Perovskite catalytic material and green synthesis method and application thereof
CN114100620A (en) * 2021-11-23 2022-03-01 阜阳师范大学 Perovskite type LaCoO3Modified zinc oxide photocatalyst, preparation method and application thereof
CN114247446A (en) * 2021-12-30 2022-03-29 贵州民族大学 Modified LaNiO3Perovskite type photolysis catalyst and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109225186A (en) * 2018-10-11 2019-01-18 南京工业大学 Titanium dioxide and silicon dioxide composite material catalyst, preparation and application
US20200207647A1 (en) * 2018-12-29 2020-07-02 Tongji University Method for Degrading Fluoroquinolone Antibiotics by Activating Peroxyacetic Acid with Lanthanum Ruthenate Perovskite
CN111135834A (en) * 2019-12-10 2020-05-12 常州大学 LaNixCo1-xO3Photo-thermal synergistic degradation toluene of La perovskite
CN113332990A (en) * 2021-06-30 2021-09-03 华南农业大学 Perovskite catalytic material and green synthesis method and application thereof
CN114100620A (en) * 2021-11-23 2022-03-01 阜阳师范大学 Perovskite type LaCoO3Modified zinc oxide photocatalyst, preparation method and application thereof
CN114247446A (en) * 2021-12-30 2022-03-29 贵州民族大学 Modified LaNiO3Perovskite type photolysis catalyst and preparation method thereof

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
WANG JIAMING 等: "Co−Ni Alloy Nanoparticles on La-Doped SiO2 for Direct Ethanol Synthesis from Syngas", 《IND. ENG. CHEM. RES.》, vol. 59, pages 19539 *
WANG JIAMING 等: "Co−Ni Alloy Nanoparticles on La-Doped SiO2 for Direct Ethanol Synthesis from Syngas", IND. ENG. CHEM. RES., vol. 59, pages 19539 *
叶倩等: "镍钴双金属氧化物催化过硫酸氢钾效能和机理", 科学技术与工程, vol. 17, no. 29, pages 145 - 152 *
李晨旭等: "过渡金属氧化物非均相催化过硫酸氢盐(PMS)活化及 氧化降解水中污染物的研究进展", 材料导报A, vol. 32, no. 7, pages 2223 - 2229 *
毛韦达等: "La0.5Sr0.5Co0.8Mn3-δ钙钛矿对过一硫酸盐降解水中四溴双酚A影响实验研究", 《地学前缘》, vol. 26, no. 3, pages 255 - 262 *

Also Published As

Publication number Publication date
CN115463661B (en) 2024-01-30

Similar Documents

Publication Publication Date Title
CN108097261B (en) Efficient and stable iron-manganese composite oxide catalyst and preparation method and application thereof
CN109603883A (en) A kind of@nanometers of phosphatization cobalt composite catalysts of N doping porous carbon polyhedron and preparation method thereof that can efficiently activate persulfate
CN103172030A (en) Oxide powder and preparation method thereof as well as catalyst and carrier thereof
CN102145293A (en) Soft magnetic composite photocatalyst and preparation method thereof
CN111545192A (en) MOFs-derived perovskite catalyst, preparation method thereof and application of MOFs-derived perovskite catalyst in catalytic degradation of organic pollutants
CN110280250B (en) Preparation method and application of zeolite imidazole framework material derived metal oxide
CN110560102B (en) Bismuth oxyfluoride composite photocatalyst and preparation method and application thereof
CN108554416B (en) Modified cobalt-based catalyst and preparation method and application thereof
CN111905751B (en) Modified LaCoO by high-temperature quenching3-δMethod for catalyzing and degrading phenol in water body by using material
CN115739103B (en) Visible light photocatalytic material CuOx@BiVO4Preparation method and application thereof
CN113731430B (en) Double Z-type CuO/CuBi 2 O 4 /Bi 2 O 3 Composite photocatalyst, preparation method and application thereof
CN113332988B (en) Porous magnetic conductive copper-self-doped copper-zinc ferrite catalyst and preparation method and application thereof
CN1317070C (en) RE CeO2 supporting wet oxidizing catalyst and its prepn
Zhao et al. Polyoxometalates-doped TiO 2/Ag hybrid heterojunction: removal of multiple pollutants and mechanism investigation
CN1112238C (en) Composite nanometer titanium dioxide/iron powder catalyst and its preparation
WO2012109846A1 (en) Methods for preparation and use of catalyst for hydrazine degradation
CN113289626B (en) Preparation method and application of 3D printing monolithic catalyst applied to Fenton/persulfate-like system
CN114042448B (en) Preparation method and application of Mn-MOF-based two-dimensional sheet manganese oxide/mesoporous carbon catalyst
CN102451680A (en) Composite oxide modified wet oxidation catalyst and preparation method thereof
CN110227477A (en) A kind of preparation method and applications of cobalt doped bismuth ferrite based compound three-phase composite catalyst
CN113663671A (en) Ternary metal catalyst and preparation method and application thereof
CN115463661A (en) Zinc oxide loaded nickel lanthanum cobaltate and preparation method and application thereof
CN102451682A (en) Zirconia-modified wet oxidation catalyst and preparation method thereof
CN111229200A (en) Bismuth oxide modified Ti3+Self-doping TiO2Preparation method of heterojunction photocatalyst
CN114835171B (en) Preparation method and application of porous nano cobaltosic oxide

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant