110 results about "Aminotroponiminate" patented technology

The invention discloses a preparation method and application of amino-modified single-benzene-ring copper-based MOFs (metal organic frameworks), and the method comprises the following steps: dropwise adding a copper nitrate monohydrate solution into a diamino terephthalic acid solution, fully stirring to react, and centrifugally washing and drying the product to obtain the amino-modified single-benzene-ring copper-based MOFs. The amino-modified single-benzene-ring copper-based MOFs are used for electrocatalytic reduction of carbon dioxide. The prepared amino-modified single-benzene-ring copper-based MOFs have unique morphology, active sites can be exposed on the inner surface and the outer surface, the accessibility of the active sites is improved, and meanwhile the reaction mass transfer capacity is enhanced.

The invention discloses an antibacterial antifouling agent as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out chemical grafting on an amino terephthalic acid compound by adopting benzisothiazolinone to prepare a functional ligand; and carrying out a reaction on a metal salt and the functional ligand to prepare the antibacterial antifouling agent. The antibacterial antifouling agent disclosed by the invention shows broad-spectrum antibacterial activity on gram-negative bacteria and gram-positive bacteria, and has anti-algae performance and good biocompatibility; meanwhile, the antibacterial and antifouling agent is compounded into water-based acrylic resin, the obtained coating still has excellent antibacterial and anti-algae performance, the ligand engineering strategy effectively breaks through the bottleneck that traditional MOFs ligands are insufficient in antibacterial activity, and an innovative path is provided for developing long-acting, synergistic and practical MOF-based antibacterial and antifouling materials.

The invention relates to the technical field of nano-enzymes, and discloses a copper-based nano-enzyme with laccase and peroxidase double-enzyme activity and preparation and application thereof, and the copper-based nano-enzyme is a nano-material prepared by forming MOF through solvothermal reaction of copper ions and diamino terephthalic acid and then performing electrostatic adsorption on the MOF and polyoxometallate. The copper-based nano enzyme has high-efficiency laccase-like activity and peroxidase-like activity at the same time through the combination and synthesis process of the copper ion cluster and the organic ligand. The invention further discloses a preparation method of the copper-based nano-enzyme, peroxidase activity detection and application of the copper-based nano-enzyme to degradation and determination of dichlorophenol. The copper-based nano-enzyme provided by the invention has high catalytic activity and stability, is low in cost and easy to prepare, and can be applied to biosensing detection of hydrogen peroxide and environmental remediation degradation of organic pollutants such as phenols and dyes.

The invention discloses a mixed matrix membrane based on defect MOF and a preparation method and application thereof, and the method comprises the following steps: (1) dissolving a hydroxyl-containing monodentate carboxyl organic ligand and 2-aminoterephthalic acid in a solvent A, stirring at room temperature, and carrying out ultrasonic treatment to obtain a mixed solution; then dropwise adding tetraisopropyl titanate into the mixed solution, and carrying out heating reaction in a reaction kettle; after the reaction is finished and cooling is carried out, a solid product is collected through centrifugation, washed and dried, and DN-MIL-125 is obtained; (2) dispersing DN-MIL-125 in a solvent B to obtain a DN-MIL-125 suspension, dissolving an intrinsic microporous polymer cPIM-1 in a solvent C to obtain a cPIM-1 solution, and then uniformly mixing the cPIM-1 solution with the DN-MIL-125 suspension to obtain a membrane casting solution; and carrying out defoaming treatment on the membrane casting solution, and forming a membrane by adopting a solution casting method to obtain the mixed matrix membrane DN-MIL-125 / cPIM-1. According to the method, the defective metal organic framework material DN-MIL-125 is added into the cPIM-1 intrinsic microporous polymer to prepare the mixed matrix membrane, and the separation performance of CO2 / N2 gas can be remarkably improved.

The invention particularly relates to a phosphotungstic acid / amino-functionalized UiO-66 bifunctional catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: dissolving zircon salt, terephthalic acid and 2-aminoterephthalic acid in an organic solvent; adding a regulator acetic acid, and activating to prepare amino-functionalized UiO-66; and slowly dropwise adding a phosphotungstic acid acetonitrile solution into the amino-functionalized UiO-66 acetonitrile dispersion liquid, stirring and reacting at room temperature, and separating and drying to obtain the catalyst HPW at amino-functionalized UiO-66. The bifunctional catalyst (phosphotungstic acid / amino-functionalized UiO-66) is coordinated through an acid-base site at a lower temperature (170 DEG C vsgt; according to the present invention, the reaction is performed at the temperature of 200 DEG C, the formation of carbon deposition can be substantially inhibited at the low temperature, and the catalyst has characteristics of high catalytic activity after five cycles, extraordinary hydrothermal stability and chemical stability, can maintain the stability of the catalyst in the reaction environment with the existence of a small amount of water, and has good and broad application prospects.

The invention discloses a preparation method and application of a bimetallic nano-enzyme induced MOFs (at) CDs material, and the preparation method at least comprises the following steps: I, dissolving FeCl3, CoCl2 and 2-aminoterephthalic acid in N, N '-dimethylformamide to form a mixed solution I, and carrying out a reaction I to obtain a bimetallic MOFs material; step II, mixing tricarballylic acid and m-phenylenediamine, and carrying out a reaction II to obtain carbon dot powder; step III, dissolving the carbon dot powder obtained in the step II in methanol, and adding rhodamine B dye to obtain a CDs material; and IV, dissolving the bimetallic MOFs material obtained in the step I and the CDs material obtained in the step III in water, stirring, and drying to obtain the MOFs (at) CDs material. The synthesized nano-enzyme is simple to prepare and high in catalytic activity, the carbon dot material is encapsulated into the MOFs material, the fluorescence characteristic of the MOFs material is enhanced, and the carbon dot material is combined with o-phenylenediamine to be used for detecting H2O2.

This invention belongs to the field of analytical detection technology and relates to a method for detecting estradiol using a combination of organometallic framework enrichment and enzyme-linked immunosorbent assay (ELISA). A magnetic organometallic framework solid-phase extractant is used to enrich estradiol in the sample, followed by detection of the enriched estradiol using ELISA. The magnetic organometallic framework solid-phase extractant is prepared by subjecting mercaptoacetic acid-modified Fe3O4 particles, zirconium salt, and 2-amino-terephthalic acid to a solvothermal reaction at 110–130°C for 22–26 hours. The detection method provided by this invention has advantages such as short detection time, high sensitivity, good specificity, and high accuracy, thereby enabling the detection of trace amounts of estradiol in environmental water samples.

The invention belongs to the technical field of wave-absorbing materials, and particularly relates to a Fe-MOF derived carbon-coated Copc composite material and a preparation method and application thereof. Comprising the following steps: mixing a ferric salt solution and a 2-aminoterephthalic acid solution, and carrying out solvothermal reaction to obtain NH2-MIL-101 (Fe); the preparation method comprises the following steps: by taking NH2-MIL-101 (Fe) as a carrier, adding cobalt phthalocyanine turbid liquid, and carrying out in-situ impregnation loading, so as to obtain the Fe-MOF derived carbon (at) Copc composite material. The Fe-MOF derived carbon-coated Copc composite material is obtained by uniformly dispersing cobalt phthalocyanine on MOF through a simple in-situ impregnation loading mode and a strong pi-pi stacking effect, has good wave absorption performance, enhances interface polarization loss, optimizes impedance matching and adapts to various loss coordination mechanisms, and has good application prospects. The heat resistance and the wave-absorbing property of the material are effectively improved.

The application provides a 2-amino terephthalic acid dimethyl ester-tetracyano benzene eutectic crystal as well as a preparation method and application thereof, the eutectic crystal is of a triclinic system, a space group is a cell parameter is alpha = 95.041 (2) °, beta = 90.337 (2) °, gamma = 97.670 (2) °, and a cell volume is The 2-amino terephthalic acid dimethyl ester-tetracyano benzene eutectic crystal provided by the application increases the solid melting point of the organic compound from 133.39 DEG C to 162.23 DEG C without changing the covalent bond of the compound, enhances the thermal stability, and meanwhile, the fluorescence emission color, the fluorescence lifetime and the quantum yield are obviously changed.

The invention discloses a composite heat storage material based on a metal organic framework and a preparation method thereof.The preparation method comprises the steps that a Ca (OH) 2-Ce (OH) 3 coprecipitation calcium-based material mixed solution is prepared, ZrCl4 and 2-aminoterephthalic acid are dissolved in a DMF solvent according to the molar ratio of 1: 1 to react and be compounded to obtain MOF, then the MOF is added into the coprecipitation solution prepared in the step 1, and the MOF and the coprecipitation solution are fully mixed through magnetic stirring; and then sequentially carrying out drying treatment and calcination to synthesize a porous structure, and finally carrying out calcination to remove carbon so as to obtain the high-temperature stable porous nano Ca-Ce-Zr composite calcium-based material. The CaO material is subjected to modification design, CaO doped with CeO2 and high-temperature-resistant MOF are compounded to prepare the heat storage material, the sintering problem of CaO in high-temperature thermochemical heat storage (TCES) circulation can be effectively solved, and the structural stability and reaction kinetics performance of CaO are improved.

The invention relates to the technical field of analysis and detection, in particular to a preparation method and application of a fluorescence enhanced sensor based on porphyrin-based carbon dots, and the specific technical scheme is as follows: the preparation method comprises the following steps: (1) dissolving 2-aminoterephthalic acid in DMF; (2) dissolving the TAPP in ultrapure water; (3) mixing the solution obtained in the step (1) and the solution obtained in the step (2), stirring at normal temperature and normal pressure, and then carrying out hydrothermal reaction at 200 DEG C for 2 hours to obtain TAPP-CDs; and (4) filtering the TAPP-CDs solution by using a microfiltration membrane, and dialyzing the filtrate to obtain the porphyrin-based carbon dots. The fluorescence enhanced sensor constructed by the invention has a good enrichment effect on the aflatoxin B2, has high sensitivity, selectivity and anti-interference performance, can accurately detect and analyze the aflatoxin B2 in an actual grain sample, and has the advantages of simple operation, low cost, high sensitivity and the like.

The invention discloses a gallium metal organic framework material which is prepared by the following steps: (1) dissolving 2-aminoterephthalic acid and itaconic acid in an organic solvent to obtain a solution A; (2) dissolving gallium nitrate hydrate in an organic solvent to obtain a solution B containing gallium ions; and (3) mixing the solution A with the solution B, heating at 50-70 DEG C for 3-5 hours, centrifuging, collecting the precipitate, and purifying to obtain the product. Itaconic acid and 2-aminoterephthalic acid are combined as double ligands, gallium ions are used as metal nodes, the gallium metal organic framework material is jointly constructed, the technical problems that itaconic acid in a free form is short in biological half-life period and low in cellular uptake efficiency are solved, the itaconic acid and the gallium ions are coordinated to achieve anti-inflammatory and antibacterial effects, and the gallium metal organic framework material has good application prospects. The compound can remove planktonic bacteria, has strong anti-biofilm activity, and can be used for preparing drugs for treating suppurative arthritis.

The invention discloses a preparation method of an MXene / NH2-MIL-125 composite film, and the preparation method comprises the following steps: carrying out etching treatment on Ti3AlC2, so as to obtain a Ti3C2Tx MXene nanosheet; the preparation method comprises the following steps: synthesizing NH2-MIL-125 (Ti) nanoparticles by taking 2-aminoterephthalic acid as an organic ligand and tetrabutyl titanate as a metal precursor through a solvothermal method; ti3C2Tx MXene nanosheets and NH2-MIL-125 (Ti) nanoparticles are added into deionized water according to the mass ratio of 1: (1-9) to be uniformly dispersed, an MXene / NH2-MIL-125 composite membrane is obtained through vacuum filtration, and the surface hydrophilicity of the membrane can be effectively improved by regulating and controlling the ratio of MXene to NH2-MIL-125 (Ti), so that the efficient separation membrane with super-hydrophilic and underwater super-oleophobic characteristics and excellent separation performance is obtained, and the separation efficiency is improved. And efficient separation, precious metal ion recovery and organic dye removal of the oil-in-water emulsion can be realized at the same time.

The invention discloses preparation and application of in-situ growth NH2-MIL-53 / polyethyleneimine synergistically modified composite functional paper, and belongs to the technical field of composite materials. The method comprises the following steps: by taking wood pulp fibers as a base material, pretreating the wood pulp fibers with sodium hydroxide, introducing amino groups through polyethyleneimine modification, growing NH2-MIL-53 in situ, and carrying out suction filtration forming and drying to obtain the composite functional paper. The molar ratio of the aluminum source to the 2-aminoterephthalic acid is 1-2, the drying temperature is 60 DEG C, and the drying time is 12 hours. The composite paper has excellent performance in CO2 adsorption and CO2 / N2 selective adsorption, the CO2 adsorption capacities under 273.15 K and 298.15 K respectively reach 1.69 mmol.g <-1 > and 1.56 mmol.g <-1 >, the CO2 / N2 selectivity is 20.64, the performance is stable after 10 times of circulation, and the composite paper is suitable for the field of efficient carbon capture.

The invention provides a one-step illumination-free etching preparation method of hollow octahedron AgCl / Ag, and belongs to the technical field of illumination-free etching. The method comprises the following steps: dissolving zirconium chloride, 2-amino-terephthalic acid and organic carboxylic acid silver salt in a solvent, adding acetic acid, and performing ultrasonic stirring to obtain turbid liquid; and putting the turbid liquid into a reaction kettle for reaction, and performing post-treatment to obtain the hollow octahedral AgCl / Ag. The specific organic carboxylic acid silver salt is used as a precursor, formation of a hollow structure and in-situ reduction of the silver elementary substance are synchronously achieved, template pre-synthesis and multi-step etching are not needed, external illumination is also not needed, dependence on photoreduction is completely eliminated, and the technological process is greatly simplified; the damage risk of multi-step etching to the carrier structure is avoided, the integrity and yield of the hollow structure are improved, and in-situ uniform generation and loading of Ag are achieved.

The invention relates to the technical field of immunosensors, in particular to a double-ligand Cu-MOF composite material, an immunosensor, a preparation method and application. The preparation method of the double-ligand Cu-MOF composite material comprises the following steps: dissolving isoluminol and 2-aminoterephthalic acid in a first organic solvent, then adding glutaraldehyde, and stirring under a dark condition to obtain a solution A; dissolving polyether F127 in a mixed solvent, and then adding copper salt to obtain a solution B; and mixing the solution A and the solution B, and carrying out a first heating reaction to obtain Cu-ABEI. The invention also provides the double-ligand Cu-MOF composite material prepared by adopting the method, an antigen-combined illuminant, an immunosensor and a preparation method of the double-ligand Cu-MOF composite material. According to the invention, the problem that the ECL signal stability of isoluminol is poor is solved, and the problem that the sensitivity is low when an existing sensor is used for detecting DBP is also solved.

This invention discloses a method and application for the industrial-scale preparation of zirconium-based composite nano-metal oxides based on MOF morphology, belonging to the field of zirconium-based multi-component composite material preparation and its application in new energy batteries. Porous zirconium dioxide is obtained by reacting 2-aminoterephthalic acid with zirconium oxychloride followed by pyrolysis to create pores. Then, a soluble salt containing magnesium, iron, and aluminum is uniformly precipitated into the reactant to prepare a zirconium-based ternary precursor material. Finally, the product is obtained through rapid plasma sintering. This method, based on MOF morphology inheritance and multi-level structure design of composite oxides, innovatively synthesizes a novel nano-additive for lithium-ion batteries. The zirconium-based composite nano-metal oxide product prepared by this invention exhibits uniform particle morphology distribution, high sphericity, and a high specific surface area. Furthermore, when used as a cathode material additive, this zirconium-based composite nano-metal oxide can improve the electrochemical performance of ternary lithium batteries.

The application discloses a kind of Pt nanoparticle load Fe-based MOF photocatalyst and its preparation method and application, belong to environmental energy technical field.The preparation method disclosed in the application uses 2-amino terephthalic acid, FeCl3·6H2O and aqueous solution of chloroplatinic acid hexahydrate as raw material, through hydrothermal reaction, Pt nanoparticle is dispersed in situ and loaded NH2-MIL-101 (Fe), reduces interface charge transfer resistance, inhibits the recombination of photo-generated carriers, to further improve the photocatalytic nitrogen fixation activity, using the synergistic effect of NH2-MIL-101 (Fe) composite photocatalyst containing Pt nanoparticle to achieve the purpose of improving the yield of photocatalytic conversion of nitrogen to ammonia, significantly solve the high energy consumption and environmental pollution problem of traditional industrial nitrogen fixation Haber-Bosch method.

The application provides a preparation method of a magnetic multi-level hole iron-nitrogen-carbon catalyst and belongs to the field of new advanced oxidation catalyst materials. The preparation method is as follows: (1) dissolving iron nitrate nonahydrate in N,N-dimethylformamide, dissolving 2-amino terephthalic acid in N,N-dimethylformamide, and then mixing the two liquids; (2) transferring the mixed liquid into a closed reaction container and heating into a gel in a blast drying oven; (3) washing with N,N-dimethylformamide and ethanol, drying in a fume hood at room temperature to obtain a multi-level hole metal organic framework gel FeBDC-NH2; (4) transferring into a porcelain boat and placing into a tube furnace to react at high temperature under an anaerobic atmosphere, so that the magnetic multi-level hole iron-nitrogen-carbon catalyst is obtained. The catalyst prepared by the method has rich defects and excellent electron transfer capacity, the multi-level hole structure of the material accelerates the mass transfer efficiency of the catalytic reaction, the material magnetism facilitates recycling, and the material can directionally catalyze the degradation of amoxicillin by a non-free radical path through persulfate.

The invention discloses a process for recovering molybdenum from high-acid high-ion-concentration white smoke leachate, and belongs to the technical field of metal smelting, the recovery efficiency of molybdenum is improved by adding a self-synthesized modified flocculant in the process, the modified flocculant is of a non-ionic main net structure, acrylamide does not have strong charge groups after being polymerized, and the high-acid high-ion-concentration white smoke leachate can be used for recycling molybdenum from the high-acid high-ion-concentration white smoke leachate. Sulfonic acid groups of sulfonated starch are only hydrophilic and do not adsorb molybdate radicals, fine solid impurities are agglomerated only through bridging action, electrostatic adsorption or chemical reaction with negatively charged molybdate radicals is avoided, and molybdenum loss is avoided from the source; iron chloride in the raw materials provides iron ions, the iron ions react with 2, 5-diamino terephthalic acid to generate an iron-based metal organic framework, the iron-based metal organic framework has a porous structure and can enhance subsequent impurity adsorption, PVDF is a typical acid-resistant and corrosion-resistant high polymer material, and after PVDF is compounded with the iron-based metal organic framework, the adsorption capacity of the PVDF is greatly improved. The iron-based metal organic framework can be prevented from being dissolved in strong acid, and meanwhile, the powder is endowed with excellent mechanical stability.

This invention provides a flexible humidity-induced photoluminescent fiber, its preparation method, and its applications, relating to the field of photoluminescent fiber preparation technology. The preparation method includes the following steps: S1, firstly, a 2-aminoterephthalic acid solution is prepared using N,N-dimethylformamide as a solvent; then, a rare earth metal-organic framework precursor is added to obtain a precursor mixture solution; S2, the precursor mixture solution is subjected to ultrasonic treatment; S3, the pretreated fiber is placed in the ultrasonically treated precursor mixture solution for a hydrothermal reaction; S4, after the hydrothermal reaction is completed and the solution is cooled to room temperature, the fiber is removed and subjected to washing, drying, and post-processing to obtain the flexible humidity-induced photoluminescent fiber. The obtained flexible humidity-induced photoluminescent fiber possesses good flexibility, fast response time, excellent stability, and high luminescence brightness, showing promising application prospects in the fields of smart wearables and visual smart fibers.

The invention belongs to the technical field of photocatalytic material preparation, and particularly relates to HM-UiO-66 (at) CTF / MFC aerogel and a preparation method and application thereof.The preparation method comprises the following steps that zirconium tetrachloride and 2-aminoterephthalic acid are added into an N, N-dimethylformamide solution of lauryl sodium sulfate, and stirring reaction is conducted; the preparation method comprises the following steps: dissolving sodium dodecyl sulfate in deionized water, then standing at 70-90 DEG C for 5-20 hours, then washing a solid product, removing the sodium dodecyl sulfate in the product, and drying to obtain HM-UiO-66-NH2; the preparation method comprises the following steps: placing HM-UiO-66-NH2 in an inert atmosphere, mixing the HM-UiO-66-NH2 with a chloroform solution of 4-cyanobenzoyl chloride, carrying out a stirring reaction, dropwise adding triethylamine into the mixture, and continuously carrying out a stirring reaction to obtain HM-UiO-66-CN; the preparation method comprises the following steps: mixing HM-UiO-66-CN with 4, 4 '-biphenyl formonitrile, and adding trifluoromethanesulfonic acid into the mixture to prepare HM-UiO-66 (at) CTF-2; and uniformly mixing the aqueous dispersion of the HM-UiO-66 (at) CTF-2 and the aqueous dispersion of the microfibrillated cellulose according to a ratio, and carrying out freeze-drying, so as to obtain the HM-UiO-66 (at) CTF / MFC aerogel. When the aerogel is used as a photocatalyst, the aerogel has good light absorption performance, good VOCs adsorption performance and good photocatalytic degradation efficiency.

The preparation method comprises the following steps: adding manganous nitrate and 2-aminoterephthalic acid into dimethylformamide, stirring and dissolving to obtain a mixed solution, then putting the mixed solution into a hydrothermal kettle in a drying oven, heating, filtering, washing, and drying to obtain the double-active-site metal organic framework energy storage positive electrode. After cooling to room temperature, centrifuging, washing with ethanol, performing vacuum drying, soaking with dimethylformamide and methanol in turn, and performing vacuum drying to obtain NH-Mn-MOF; and mixing the NH-Mn-MOF, conductive carbon and a binder in a solvent, and casting the mixture on a stainless steel mesh to obtain the double-active-site metal organic framework energy storage positive electrode. Wherein the solvent comprises one or more of NMP, DMF and DMSO. The metal organic framework NH-Mn-MOF positive electrode material which is stable in structure and has double electrochemical active sites is synthesized, so that the energy density of MOFs serving as a battery positive electrode is improved.

The invention discloses a quaternized COFs (Covalent Organic Frameworks) material as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out acylating chlorination reaction on betaine and thionyl chloride to prepare acylating chlorinated betaine; reacting the acylated and chlorinated betaine with dimethyl 2-aminoterephthalate or dimethyl 5-aminoisophthalate, so as to prepare a hydrazide precursor grafted with a quaternary ammonium group; performing hydrazide treatment on the hydrazide precursor grafted with the quaternary ammonium group to prepare a hydrazide monomer containing a quaternary ammonium structure; and enabling the hydrazide monomer containing the quaternary ammonium structure to react with 2, 4, 6-triformyl phloroglucinol by adopting solvothermal, so as to prepare the quaternized COFs material. The quaternized COFs material disclosed by the invention is low in synthesis difficulty, relatively low in cost, uniform in reaction, high in grafting efficiency and suitable for large-scale preparation; meanwhile, the adsorption performance of the prepared quaternized COFs material is greatly improved.

The invention relates to a fluorescence and colorimetric dual-mode biosensing method for detecting caffeine and application thereof, the method causes CRISPR / Cas13a to regulate and control Fe-MOFs to fall off from a signal probe based on to-be-detected liquids with different concentration gradients, the fallen Fe-MOFs collapses under the action of sodium pyrophosphate to release 2-aminoterephthalic acid and ferric ions, and the 2-aminoterephthalic acid and ferric ions are subjected to fluorescence and colorimetric dual-mode biosensing method is used for detecting caffeine. 2-aminoterephthalic acid is converted into a fluorescence signal, meanwhile, Prussian blue generated by reaction of ferric ions and potassium ferrocyanide is converted into a colorimetric signal, and a fluorescence and colorimetric dual-mode biosensing method is constructed; according to the sensor, interference factors can be effectively eliminated by outputting two detection signals and performing cross validation; the advantages of high sensitivity and wide linear range of a fluorescence method and the advantages of simple operation and visual result of a colorimetric method are combined, so that a target object can be accurately recognized, the lower detection limit can be reduced, and the accuracy of a quantitative result can be ensured; according to the sensing method, visual observation can be achieved, precise instruments are not needed, and good application value is achieved.

The invention belongs to the technical field of water adsorption, and particularly relates to a high-hygroscopicity MOFs (Metal-Organic Frameworks) material as well as a preparation method and application thereof. The preparation method of the high-hygroscopicity MOFs material comprises the following steps: dissolving a surfactant in water to form a micelle system, then adding a mediating salt, a Zr salt, a crystal growth regulator, mesitylene and an organic ligand, and carrying out micelle and precursor co-assembly and post-treatment under stirring and heating conditions to prepare the MOFs material, the surfactant is a triblock copolymer F127; the organic ligand is 2-aminoterephthalic acid. The MOFs material prepared by the method can form an ordered mesoporous structure, can reach the maximum adsorption value more quickly, and has excellent moisture absorption dynamic performance; in addition, the fabric also has higher moisture absorption capacity.

The invention belongs to the technical field of nano-enzyme materials, and particularly discloses a magnetic nano-enzyme material, a preparation method and application in swelling agent detection, and the magnetic nano-enzyme material comprises the following steps: S1, preparing Fe3O4 (at) C; s2, dissolving 2-aminoterephthalic acid and FeCl3. 6H2O in N, N-dimethylformamide in proportion, mixing, adding Fe3O4 (at) C obtained in the step S1, carrying out ultrasonic treatment, heating, washing and centrifugal separation, putting into a mixed solution of N, N-dimethylformamide and TEOS (tetraethyl orthosilicate), carrying out secondary ultrasonic treatment, standing overnight, carrying out secondary washing, drying and calcining. According to the magnetic nano-enzyme material, the preparation method and the application in swelling agent detection, potential is provided for visual detection of the swelling agent in pollution in environment and agricultural production, and a new method is provided for quality control of traditional Chinese medicinal materials.

The invention discloses an MOFs material, a preparation method thereof and application of the MOFs material to adsorption and detection of PFOS, and belongs to the technical field of functional materials. An organic ligand of the MOFs material is 2-aminoterephthalic acid, and an inorganic metal center is Ce < 3 + >. The MOFs material has the characteristics of a specific crystal structure, rich amino functional groups, Ce < 3 + > active sites and a mesoporous structure, high-sensitivity detection of PFOS can be achieved through a fluorescence quenching effect, the detection limit is as low as 16 ppb, meanwhile, PFOS can be efficiently removed through a chemical adsorption effect, and the maximum adsorption capacity reaches 724.6 mg / g. The material has the advantages of being high in selectivity, good in stability, high in applicability and the like, synchronous detection and pollution remediation of PFOS can be achieved, and the material has good application prospects in the field monitoring and pollution control aspects of short-chain perfluorinated and polyfluoroalkyl substances (PFAS) in the environment.

The invention provides a preparation method and application of a mesoporous material Ce / Ti-UiO-66-NH2, and the preparation method comprises the following steps: 1) mixing a certain amount of template agent, ceric ammonium nitrate, terephthalic acid, TMB, acetic acid and sodium perchlorate, dissolving in deionized water, and reacting to obtain Ce-UiO-66; (2) adding a certain amount of tetrabutyl titanate into a N, N-dimethylformamide solution containing Ce-UiO-66, and carrying out hydrothermal reaction, so as to obtain a Ce / Ti-UiO-66 solid; and (3) carrying out ultrasonic treatment on a certain amount of 2-aminoterephthalic acid and the Ce / Ti-UiO-66 solid in a methanol solution to obtain a Ce / Ti-UiO-66-NH2 solid. According to the method, simple and convenient synthesis of mesoporous Ce-UiO-66 can be achieved, the problem that in the prior art, a mesoporous Ce-UiO-66 synthesis method is difficult is solved, the metal titanium ion-doped and amino-loaded Ce / Ti-UiO-66-NH2 mesoporous material is prepared, and meanwhile, a new material is provided for the fields of photocatalysis and the like.