156 results about "Antibiotic degradation" patented technology

The invention discloses staphylococcus vorus X9 with an antibiotic degradation function and application of the staphylococcus vorus X9 in antibiotic degradation, and belongs to the technical field of microorganisms. The staphylococcus vorus X9 is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.32162. The strain has an excellent degradation effect on erythromycin and oxytetracycline, so that the strain has application value and prospect in the field of antibiotic degradation. Therefore, the compound can be prepared into a microbial agent which is used for purifying an environment polluted by antibiotics.

The invention discloses a biological enzyme (at) MOFs / silver phosphate-based composite material and a preparation method and application thereof in water treatment. The preparation method of the composite material comprises the following steps: adding a biological enzyme and a dispersing agent into an organic ligand solution, and uniformly mixing to obtain a mixed solution; adding a metal source solution into the mixed solution, stirring for reaction, filtering, and drying filter residues to obtain a biological enzyme-coated MOFs material; and adding the bio-enzyme-coated MOFs material into a silver phosphate solution, carrying out mixing reaction, and drying the obtained solid to obtain the bio-enzyme-coated MOFs / silver phosphate-based composite material. The composite material disclosed by the invention not only can maintain the catalytic activity and stability of enzyme, but also has efficient photocatalytic activity under illumination; the MOFs, the photocatalytic material and the bio-enzyme promote each other, and finally the composite material shows good antibacterial and antibiotic degradation effects.

The invention discloses a method for preparing a liquid fertilizer and improving crop yield by using tylosin waste liquid, and belongs to the technical field of agricultural waste resource utilization, and the method comprises the following steps: S1, preparing a novel liquid fertilizer: mixing the tylosin waste liquid with an antibiotic degradation agent for reaction, centrifuging, and collecting supernatant; adding nutrient substances and a mixed bacterial agent into the centrifugate for fermentation treatment, and filtering to obtain filtrate, namely the novel liquid fertilizer; s2, taking crop seeds, and soaking the crop seeds in a soaking solution before planting; s3, in the seed bud stage and the seedling stage, leaf surface spraying is conducted; wherein the antibiotic degradation agent is prepared by reacting modified silicon dioxide with sulfhydrylated sodium carboxymethyl cellulose. According to the method, resource utilization of the tylosin waste liquid is achieved, environmental pollution and use of chemical fertilizers are reduced, the agricultural production cost is reduced, and an effective way is provided for agricultural sustainable development.

The invention discloses a Cu2WS4-CuBi2O4 composite material with a photothermal effect and a preparation method and application thereof.The Cu2WS4-CuBi2O4 composite material is supported by CuBi2O4 of a rod-shaped structure, flaky Cu2WS4 is loaded on the surface of the rod-shaped CuBi2O4 through the interface regulation and control effect of a surfactant by adopting a hydrothermal method, and a Z-type heterojunction with the photothermal effect is formed; in an antibiotic degradation system, the Cu2WS4-CuBi2O4 composite material shows good photocatalytic performance and degradation effect under the synergistic effect of a photothermal effect and a PDS advanced oxidation process. The device is simple to prepare, stable in structure, high in repeatability and free of secondary pollution, and can meet laboratory and industrial requirements.

Provided are a preparation method and use of a novel copper-metal organic framework (Cu-MOF)-derived magnetic Fe3O4@Cu / C composite for antibiotic degradation. The preparation method of the composite includes: compounding a novel Cu-MOF material obtained in a high-pressure reactor with Fe2O3, and then conducting calcination under an inert gas atmosphere to obtain the magnetic Fe3O4@Cu / C composite.

The invention discloses a Cu-MOF derivative material for antibiotic degradation and a preparation method of the Cu-MOF derivative material, and belongs to the field of metal organic framework material preparation and the technical field of water treatment. The preparation method of the Cu-MOF derivative material comprises the following steps: preparing a high-crystallinity Cu-MOF precursor by adopting a hydrothermal synthesis method, washing for a plurality of times to remove impurities, drying, grinding the obtained Cu-MOF precursor, putting into a tubular furnace, calcining in a nitrogen atmosphere, and cooling to obtain the Cu-MOF derivative material. The preparation process is simple, the Cu-MOF precursor is synthesized through a hydrothermal synthesis method, the Cu-MOF derivative material is synthesized through programmed temperature control calcination modification, the raw material cost is low, the removal efficiency is high, and the application range is wide. The material is high in efficiency of degrading antibiotics, has anti-interference performance when being used for catalytically degrading tetracycline hydrochloride, can still keep relatively good degradation performance in the presence of inorganic ions such as PO4 < 3->, NO3 <-> and Cl <-> and humic acid HA, and has important application value in removal of tetracycline hydrochloride in actual water bodies.

The invention belongs to the technical field of antibiotic degradation, and particularly relates to a preparation method and application of a surface hydroxylation monatomic catalyst with a Co-O-Zn structure. Zinc acetate and cobalt acetate are used as metal sources, dimethylimidazole is used as a ligand, mixing reaction is carried out in a solvent, centrifugal washing, drying and calcining are carried out, the surface hydroxylation monatomic catalyst with a Co-O-Zn structure is prepared, the surface hydroxylation monatomic catalyst has an asymmetric Co-O-Zn configuration, a large number of hydroxyl groups exist on the surface, and the surface hydroxylation monatomic catalyst has the advantages that the surface hydroxylation monatomic catalyst has a good application prospect. The asymmetric coordination structure of Co-O-Zn can optimize the adsorption behavior of an oxidizing agent, effectively adjust the interaction of metal sites and the electronic structure in the catalysis process, significantly enhance the catalytic reaction, and have strong ability to resist the interference of external inorganic ions and organic matters.

The invention relates to the technical field of microbial treatment of antibiotic pollution, and discloses an antibiotic degrading bacterium with salt tolerance and capable of degrading sulfamethoxazole at low temperature and application, the strain degrades SMX in a wide temperature range of 10-40 DEG C, the degradation rate of 20mg / L SMX at 10-35 DEG C within 64 hours is greater than 70%, and the degradation rate of 20mg / L SMX at 20-30 DEG C reaches 100%; at the low temperature of 10 DEG C, low-concentration SMX is obviously degraded, and the SMX with the concentration of 5 mg / L can be completely degraded within 16 hours; the MJ2 can still effectively degrade SMX under the harsh conditions that the temperature is low and SMX serves as the unique carbon and nitrogen source, the degradation rate reaches 100% after 66h at the concentration of 5 mg / L, and it is proved that the MJ2 has the unique oligotrophic adaptability. Salinity tests show that the degradation rate of MJ2 to 20 mg / L SMX within 48 hours under the 0.1-2% NaCl concentration is 100%, the degradation rate is still kept at 50% even under the stress of 3% high salt, and remarkable salt tolerance is also shown. In conclusion, the strain MJ2 integrates wide temperature range adaptability, low-temperature high efficiency, oligotrophic tolerance and high salt stability, and has great application value in sulfonamide antibiotic pollution remediation in a complex environment.

The invention belongs to the technical field of microorganisms, and particularly discloses a fluoroquinolone antibiotic efficient degrading bacterium and application thereof. The fluoroquinolone antibiotic degrading bacterium is Kocuria sp. X03, the preservation number of the Kocuria sp. X03 is CCTCC NO: M 2025522, the invention provides the fluoroquinolone antibiotic degrading bacterium Kocuria sp. X03 separated from soil, the Kocuria sp. X03 can efficiently degrade fluoroquinolone antibiotics, an antibiotic degrading strain library is enriched, biotransformation mechanism research and bioremediation application are promoted, and the application prospect is wide. The strain can be used for degrading and eliminating livestock and poultry manure and residual antibiotics in farmland soil, and has certain research and application values.

The invention discloses a single-chamber electro-Fenton antibiotic mineralization device and method based on double anodes, in the device, an air cathode, a first anode and a second anode are sequentially arranged in a single chamber, an electrolyte contains antibiotics, the first anode comprises an electrogenesis biological membrane and in-situ synthesized nano FeS, and the second anode comprises an electrogenesis biological membrane and in-situ synthesized nano FeS; the second anode comprises a degradation biological membrane of a typical antibiotic degradation intermediate, and the surface of the air cathode is coated with an aerobic reduction catalyst. The first anode is used for driving Fe (III) / Fe (II) circulation, generation of OH is accelerated, meanwhile, nano FeS is used for protecting cells from being damaged, and therefore the antibiotic degradation efficiency is improved, and generation of intermediates is promoted; the second anode is used for promoting anode biodegradation to be coupled with cathode chemical oxidation, the intermediate is rapidly mineralized, electrons are released to drive the cathode electro-Fenton reaction, and finally thorough mineralization of the antibiotics is achieved. The device and the method provided by the invention can realize high-efficiency green low-carbon treatment of antibiotic wastewater, and have important application prospects in the aspects of environmental protection and resource utilization.

The invention discloses a cobalt hybrid material for photocatalytic degradation of tetracycline as well as a preparation method and application of the cobalt hybrid material, and relates to the technical field of degradation of antibiotics in water. According to the cobalt hybrid material for photocatalytic degradation of tetracycline, two-core cobalt is used as a basic structure unit, aromatic carboxylic acid is used as a connector, and a two-dimensional plane structure is assembled. The cobalt hybrid material has good stability, can be used as a photocatalytic material to efficiently activate PMS, and can cooperate with PMS to degrade tetracycline in water.

The invention relates to boron-doped modified peanut shell biochar as well as a preparation method and application thereof, the boron-doped modified peanut shell biochar is an irregular particle with a rough surface and a hierarchical pore structure, and the hierarchical pore structure comprises macropores, micropores and mesopores. And in the hierarchical pore structure, macropores account for 1%-30%, mesopores account for 30%-80%, and the balance is micropores. The graphitization degree of the carbon structure is improved, the specific surface area is increased, electron migration is accelerated, and new defect edges and active sites are increased, so that the adsorption and catalysis capabilities are enhanced. And the corresponding preparation method has the advantages of low cost, simplicity and convenience in operation and environment friendliness, and resource utilization of the peanut shells and industrial production of the catalyst can be realized. In addition, the boron-doped modified peanut shell biochar serves as a catalyst to activate potassium peroxydisulfate to degrade antibiotics, and the degradation rate is larger than or equal to 60%.

The invention discloses a sewage treatment method based on reinforcement of composite magnetic nanoparticles, and belongs to the technical field of sewage treatment, and the sewage treatment method comprises the following steps: 1, pretreatment: intercepting large-particle-size floating objects in wastewater by using a grid, and stirring by using an adjusting tank to uniformly mix water; in the second step, composite magnetic nanoparticles are added into the pretreated wastewater, and nitrogen and phosphorus adsorption and electric energy collection and storage are achieved at the same time; 3, separation: separating the composite particles through a magnetic separation device, and further purifying the wastewater through a sedimentation tank; 4, regeneration: forming an electric field by utilizing the collected electric energy, desorbing particles by combining with a neutral solution of an antibiotic degradation product, and recycling after cleaning; 5, standard reaching and energy consumption balance are carried out, the wastewater is disinfected, the water quality is monitored, the stirring speed and the power supply proportion are adjusted in a linkage mode, and standard emission and energy consumption self-balance are ensured. The method does not need to depend on microorganisms, particles and energy recycling, the treatment efficiency is high, and the operation cost is low.

The invention belongs to the technical field of agricultural biology, and particularly relates to zearalenone hydrolase ZHRnZ as well as a coding gene, a preparation method and application thereof. The amino acid sequence of the zearalenone hydrolase ZHRnZ provided by the invention is as shown in SEQ ID NO.1, and the nucleotide sequence of the coding gene of the zearalenone hydrolase ZHRnZ is as shown in SEQ ID NO.2. The hydrolase provided by the invention has relatively strong degradation capability on zearalenone, derivatives of zearalenone and macrolide antibiotics, and is high in degradation speed. The method has a huge application prospect in the fields of degradation of feed, food, biomass energy, Chinese herbal medicine mycotoxin and antibiotics.

The invention discloses a method for promoting degradation of penicillin antibiotics in a water body. The method comprises the following steps: S1, detecting water quality; s2, medium adjustment; s3, carrying out catalytic degradation; s4, precipitation reaction; medium adjustment is performed on the water body to be treated by using calcium ions and organic matters, so that an example state in the water body to be treated is good, the calcium ions can be coordinated with carbonyl and carboxyl in penicillin molecules, a hydrolyzed reaction intermediate is stabilized, the hydrolysis rate of penicillin antibiotics is increased, and the yield of penicillin antibiotics is increased. The characteristic functional groups such as amino and sulfydryl in the biological metabolism organic matter can also serve as strong nucleophilic reagents to promote rapid hydrolysis of penicillin antibiotics, and meanwhile, through specific setting of the method, it can be avoided that calcium ions and biological organic metabolism media cause secondary pollution to the to-be-treated water body before degradation.

The application discloses a functional carrier filler, a preparation method and application thereof. The functional carrier filler comprises a polyethylene carrier and a functional layer loaded on the surface of the polyethylene carrier; and the functional layer comprises amino graphene. The application fixes the amino graphene on the surface of the polyethylene carrier, so that the surface of the filler is rich in nitrogen functional groups capable of mediating electron transfer, the electron transfer of microorganisms is promoted, the biodegradation of antibiotics is strengthened, the specific surface area of the carrier is improved, and the biofilm is hung, the functional carrier filler is used as a suspended filler of a moving bed biofilm reactor, and is used in a post-denitrification MBBR process after sewage treatment, so that the denitrification rate is improved, the degradation of antibiotics is promoted, the use of carbon sources is reduced, and energy saving and emission reduction are facilitated.

The invention provides a preparation method and application of a photocatalytic microorganism-nano material heterozygote. The heterozygote is formed by compounding electroactive bacteria Shewanella oneidensis MR-1 and a nano material CNx with a photoelectric effect, degradation of antibiotics such as tetracycline and the like is accelerated by utilizing photo-induced electrons and holes generated by excitation of the CNx under a natural illumination condition, inhibition of the antibiotics on microbial activity is relieved, the microbial metabolism efficiency is improved, and the degradation rate of antibiotics such as tetracycline and the like is increased. Therefore, nitrogen and phosphorus elements in the wastewater are rapidly induced to form magnesium ammonium phosphate crystals, and synchronous antibiotic degradation and nitrogen and phosphorus resource recovery are realized. The method is easy and convenient to operate, environmentally friendly and high in phosphorus recovery efficiency, the obtained magnesium ammonium phosphate crystals are controllable in grain size and excellent in quality, and the method is suitable for resourceful treatment scenes of antibiotic-containing organic pollutants such as breeding wastewater and has good application and popularization prospects.

The invention relates to the technical field of nano materials, in particular to a CoMo-BTNT anode, a preparation method and application thereof, and the preparation method comprises the following steps: preparing a Ti substrate; preparing a titanium dioxide nanotube array by using a Ti substrate; co-Mo oxide layer deposition liquid is deposited on the surface of TNA through a direct-current electrodeposition method, then annealing heat treatment is conducted, and CoMo-TNA is prepared; preparing a CoMo-BTNT anode by taking CoMo-TNA as a cathode and a Pt sheet as an anode; the invention also provides an application of the CoMo-BTNT anode in degradation of antibiotics in water. According to the invention, TNA is used as a base layer, an active CoMo oxide layer is deposited on the TNA base layer, the TNA base layer has good electrical conductivity and electro-catalytic performance, the electrical conductivity of the anode is improved, an effective electrically-assisted activated PMS degradation tetracycline system is constructed, and a new solution thought is provided for treatment of tetracycline wastewater.

The invention discloses a method for strengthening three-effect synergy of chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction in rice field soil through sulfurized zero-valent iron, and belongs to the technical field of rice field soil pollution remediation. The sulfurized zero-valent iron (S-ZVI) is prepared according to the sulfur-iron ratio of 0.1-0.2; the S-ZVI is mixed with the contaminated soil, and rice is cultivated in cooperation with a specific fertilization and irrigation scheme. According to the method for strengthening the triple-effect synergy of chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction in the rice field soil through the sulfurized zero-valent iron, by optimizing preparation and application of the sulfurized zero-valent iron, under the synergistic effect of chemical reduction and microbial degradation, the triple-effect synergy of chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction is expected to be achieved, and the effect of strengthening the rice field soil chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction is achieved. And an important means is provided for degradation of antibiotics in rice field soil.

The invention discloses an efficient detoxification and nutrient recovery method for aerobic composting of fungus-enhanced erythromycin fermentation fungus residues, and belongs to the field of solid waste disposal and resource reutilization. The method comprises the following steps: mixing erythromycin fermentation mushroom dregs subjected to high-temperature sterilization treatment with corn straw powder, inoculating trichoderma asperellum, and carrying out aerobic composting fermentation. According to the method, aerobic co-compost of erythromycin fermentation mushroom dregs and crop straws is strengthened by inoculating an antibiotic degrading microbial agent taking trichoderma asperellum as a core, and an organic fertilizer which is high in nutrient content and is non-toxic and harmless is produced, so that an efficient, economical and environment-friendly solution is provided for solving the problem of resource utilization of the erythromycin fermentation mushroom dregs.

The application relates to the technical field of nanomaterials, in particular to a CoMo-BTNT anode, a preparation method and application thereof, wherein the preparation method comprises the following steps: preparing a Ti substrate; preparing a titanium dioxide nanotube array by using the Ti substrate; depositing a Co-Mo oxide layer deposition solution onto the surface of the TNA through a direct current deposition method, and then performing annealing heat treatment to prepare a CoMo-TNA; and preparing the CoMo-BTNT anode by taking the CoMo-TNA as a cathode and a Pt sheet as an anode; the application further provides application of the above CoMo-BTNT anode in antibiotic degradation in water; the application takes the TNA as a base layer, and deposits an active CoMo oxide layer thereon; the CoMo-BTNT anode has good conductivity and electrocatalytic performance, the conductivity of the anode is improved, an effective electrically assisted activated PMS tetracycline degradation system is constructed, and a new solution idea is provided for tetracycline wastewater treatment.

The invention discloses a high-activity nitrogen-doped catalyst for efficiently degrading chemical organic wastewater, which is characterized in that a precursor containing nitrogen or rich functional groups is self-polymerized with metal to anchor a large number of metal ions, and a stable coordination environment is provided for the metal ions through rapid self-polymerization, so that the chemical organic wastewater can be efficiently degraded. Therefore, metal aggregation is inhibited, and metal leaching in the using process is prevented. The catalyst provided by the invention can be used for degrading organic wastewater, has the advantages of small catalyst dosage, good catalyst performance and good degradation effect, can completely degrade dye to the highest degree of 100%, can degrade antibiotics to the highest degree of 99%, and is a catalyst with wide application prospects in the field of chemical organic wastewater treatment.

The invention belongs to the technical field of environmental pollution treatment and water treatment, and particularly relates to a method for degrading organic pollutants by coupling a nano confinement catalytic membrane with micro-nano bubbles. The method comprises the following steps: adding micro-nano bubble water and an oxidizing agent into an organic pollutant solution, regulating the pH value to prepare a pretreatment mixed solution, and enabling the pretreatment mixed solution to pass through a nano confinement catalytic membrane to catalytically degrade the organic pollutants, the nano confinement catalytic membrane comprises an organic polymer membrane substrate and a catalyst loaded in the organic polymer membrane substrate; the loading capacity of the catalyst is 5 to 30 mg. The problems that antibiotics are difficult to degrade, pollutant concentration is easily caused by membrane separation, a catalyst is difficult to recycle, and membrane flux and catalytic activity are difficult to balance are solved, the method has the advantages of being high in degradation efficiency, stable in membrane flux, easy to recycle the catalyst and wide in application range, and wastewater containing organic pollutants can be efficiently treated.

The present invention provides a titanium-based perovskite material with different microstructures, a preparation method thereof, and an application in photocatalytic degradation of antibiotic pollutants. The microstructure of the titanium-based perovskite material is effectively regulated by adjusting the type of mineralizing agent in the hydrothermal reaction, and nanoparticles, nanosheets, and nanoflower structures with hierarchical structures are obtained. The titanium-based perovskite material with different microstructures of the present invention can quickly achieve enhanced separation of carriers due to its good microstructure and enhanced surface and interface reactions; at the same time, due to the effective regulation of the microscopic surface, it has more active reaction sites and thus exhibits good physicochemical activity, which not only enhances the surface and interface reactions, but also promotes effective adsorption of the surface of antibiotic pollutants. The titanium-based perovskite material with different microstructures of the present invention is used as a catalyst to exhibit high-end photocatalytic activity under visible light irradiation, and shows potential application effects on the removal of highly toxic and low-concentration antibiotic pollutants.

The invention discloses a method for preparing a cobalt single-atom nano-island catalyst and an application for degrading sulfonamide organic pollutants, and relates to the technical field of antibiotic degradation. The present invention dissolves zinc acetate and cobalt acetate in a solvent, adds alkali to the system, obtains a precursor solution, and then hydrothermally reacts the precursor solution at 150-160°C, and obtains a cobalt single-atom nano-island catalyst after drying. The present invention prepares a nano-island-shaped single-atom dispersed catalyst in which cobalt single atoms are confined and dispersed on zinc oxide, and the unique structure can effectively avoid agglomeration and deactivation of cobalt single atoms during the reaction. The cobalt single-atom nano-island catalyst of the present invention can efficiently degrade various sulfonamide organic pollutants, and has a strong ability to resist interference from inorganic ions and organic matter, and has a large application potential for actual wastewater treatment.

The invention discloses a PDDA modified LaFeO3 / g-C3N5 magnetic composite photocatalyst, a preparation method thereof and application of the PDDA modified LaFeO3 / g-C3N5 magnetic composite photocatalyst in antibiotic degradation, and the preparation method comprises the following steps: (1) dispersing g-C3N5 in water, and adjusting pH to obtain a g-C3N5 suspension; (2) dispersing the LaFeO3 nano material in water, adjusting the pH value, adding a PDDA solution, stirring, separating and drying to obtain PDDA modified LaFeO3 powder; and (3) dispersing the PDDA modified LaFeO3 powder in water, dropwise adding the PDDA modified LaFeO3 powder into the g-C3N5 turbid liquid under a stirring condition, continuously stirring and reacting, and centrifuging and drying to obtain the magnetic composite photocatalyst. According to the invention, the PDDA modified LaFeO3 / g-C3N5 composite material with high catalytic activity, strong magnetic recovery performance and excellent stability is obtained, and effective degradation of antibiotics in wastewater is realized.

The utility model discloses a movable aquaculture sediment treatment device. The movable aquaculture sediment treatment device comprises a frame, wheels are arranged at the bottom of the frame; a collecting mechanism, a pretreatment tank and a reaction tank are arranged on the frame; an ozone contact tower is arranged between the pretreatment tank and the reaction tank; an organic matter adsorption layer is arranged in the reaction tank; the ozone contact tower comprises a porous diffusion reactor. The device is of an integrated movable structure, is high in practicability and convenient to operate, improves the working efficiency, accelerates the repairing speed, reduces the use amount of ozone, improves the utilization rate of the ozone, catalyzes the ozone by using the organic matter adsorption layer, and realizes bottom mud disinfection and antibiotic degradation.

The invention belongs to the technical field of livestock and poultry breeding wastewater treatment and agricultural reuse, and particularly relates to an electrochemical enhanced low-pressure ultrafiltration system and method for livestock and poultry breeding tail water reuse, and the electrochemical low-pressure ultrafiltration system comprises a water inlet tank, a constant water level water tank, a gravity-driven low-pressure ultrafiltration membrane assembly, a water collecting device and a constant-voltage driving power supply; the gravity-driven low-pressure ultrafiltration membrane assembly comprises a reactor, and an anode, an ultrafiltration membrane and a cathode pre-filtering layer which are arranged in the reactor, wherein the cathode pre-filtering layer consists of a biological filter cake layer and a cathode. According to the electrochemical enhanced low-pressure ultrafiltration system and the electrochemical enhanced low-pressure ultrafiltration method for recycling livestock and poultry breeding tail water, the electrochemical enhanced gravity-driven low-pressure ultrafiltration system driven by external source constant voltage is adopted according to the characteristics of livestock and poultry breeding waste water tail water; heavy metal reduction, antibiotic degradation, pathogen interception, resistance gene transmission inhibition and membrane pollution control can be synchronously realized under the condition of low energy consumption, nitrogen and phosphorus resources in wastewater are reserved, and safe recycling of agricultural irrigation is guaranteed.

The application belongs to the technical field of photocatalytic materials and the field of environmental governance, and discloses a preparation method and application of a heterojunction photocatalytic material for degrading fluoroquinolone antibiotics. The catalytic material is an S-type photocatalytic material, and the heterojunction photocatalytic material can be prepared through a simple hydrothermal method. By controlling the addition amount of NH2-MIL-68(In), Bi2MoO6 / NH2-MIL-68(In) heterojunctions with different component contents are obtained. Experimental results show that when the Bi2MoO6 / NH2-MIL-68(In) (BMN-2) photocatalytic material prepared by the application is applied to photocatalytic degradation of ofloxacin in water, 100% of the ofloxacin can be degraded after visible light irradiation for 90 minutes. In addition, the photocatalyst also has good photocatalytic degradation performance for ofloxacin in actual water. The heterojunction photocatalyst prepared by the application has good visible light response and excellent antibiotic degradation performance, and has good application prospect in the field of photocatalytic degradation of antibiotics.

The invention relates to the technical field of antibiotic degradation materials, in particular to a magnetic catalyst with wide pH adaptability for degrading antibiotics and a preparation method of the magnetic catalyst. The preparation method comprises the following steps: reacting nickel salt with 2-methylimidazole in a solvent to obtain a nickel precursor; the preparation method comprises the following steps: reacting a nickel precursor, cobalt salt, polyvinylpyrrolidone and dimethylimidazole in a solvent, collecting a solid phase, and drying to obtain cobalt-nickel bimetal MOF; and carrying out heat treatment on the cobalt-nickel bimetallic MOF in argon to obtain the cobalt-nickel bimetallic MOF. Precursor powder of Ni and dimethylimidazole is pre-synthesized, then ZIF-67 is attached to the surface of the powder to generate an MOF structure, double metals of Co and Ni are introduced, the integrity of the MOF structure is kept, the material is endowed with magnetism, and the material has high catalytic activity and is easy to separate. Meanwhile, due to the simultaneous existence of Co and Ni, the synergistic effect is achieved, and the catalyst has higher catalytic activity and is universal to various antibiotics in water.