35 results about "Nitrophenol" patented technology

This invention provides compounds and methods of application that possess both broad-spectrum antifungal activity and plant-induced resistance, belonging to the field of agricultural technology. It addresses the problem that "traditional pure immune inducers must be applied before disease onset, making it difficult to meet the full-cycle control needs of disease prevention and treatment in the field." Compared to the previously developed PC1 and PC20, the two compounds of this invention, 2,4-dibromo-6-nitrophenol and 7-deazon-2'-deoxy-7-iodoadenosine, can both inhibit the growth of rice blast fungus and significantly improve rice resistance to rice blast through foliar spraying, meeting the full-cycle control needs of disease prevention and treatment in the field. Furthermore, these two compounds can directly inhibit the growth of various fungal pathogens such as peanut white mold, tomato gray mold, wheat scab, rice bakanae disease, rice false smut, mango malformation, and banana wilt.

This invention provides a method for screening β-galactosidase inhibitors, belonging to the field of pharmaceutical technology. The first step of this method uses fluorescence sensing technology to rapidly identify natural products with β-Gal inhibitory activity. The principle is based on the fluorescence quenching property of p-nitrophenol (PNP) on sulfur quantum dots (SQDs); β-Gal catalyzes the hydrolysis of p-nitrophenyl-β-D-galactopyranoside (PNPG) to generate the specific product PNP; in the presence of β-Gal, PNPG can be enzymatically catalyzed to generate PNP, quenching the fluorescence of SQDs; when screened for β-Gal inhibitory activity, the fluorescence of SQDs can be restored. The second step uses affinity chromatography to capture components in samples with β-Gal inhibitory activity. This method involves immobilizing β-Gal on a support material, eluting with a solvent to obtain components that can bind to β-Gal, and then using liquid chromatography-mass spectrometry (LC-MS) to identify the components. This method can rapidly and accurately screen β-Gal inhibitors from natural products.

The application discloses a copper oxide nanowire loaded silver monatomic catalyst, a preparation method and application thereof, and comprises a substrate, CuO nanowires and metal Ag monatomic atoms loaded on a CuO nanowire electrode layer; the substrate is a commercial copper foam, and the substrate is used for providing a copper source and preparing an array material of the metal Ag monatomic atoms on the CuO nanowires. The application adopts the above-mentioned copper oxide nanowire loaded silver monatomic catalyst, the preparation method and the application thereof, through silver monatomic atom modification, copper-silver metal interaction jointly regulates an intermediate product in an adsorption electrocatalytic reduction process, excellent electrocatalytic nitrophenol reduction performance is obtained, and the application is suitable for environmental pollution treatment and pharmaceutical synthesis development fields.

The present application relates to the technical field of organic synthesis, and particularly relates to a zinc-based fluorescent probe containing a pyridyl carboxylic acid type component, and a preparation method and application thereof. 22 H 14 N3O2)(CHO2)(H2O)·C3H7NO·3H2O; the zinc-based fluorescent probe containing the pyridyl carboxylic acid type component belongs to a monoclinic system, and a space group is P 2 1 / c ; cell parameters are a = 7.2925(2) Å, b = 26.6839(8) Å, c = 12.8618(4) Å, α = 90°, β = 105.5770(10)°, gamma = 90°. The zinc-based fluorescent probe has good thermal stability and large light emission intensity, the preparation method is simple, and the zinc-based fluorescent probe can be used as a fluorescent sensor to detect Fe 3+ and 2,4,6-trinitrophenol in a DMF solution with high sensitivity and high selectivity.

The present application belongs to the technical field of biomass hard carbon, and particularly relates to a preparation method and application of a high-rate hard carbon negative electrode material. The preparation steps are as follows: biomass raw materials are pre-carbonized under a protective atmosphere to obtain a pre-carbonized product; the pre-carbonized product is added into a p-nitrophenol solution, stirred uniformly, poured into a reaction kettle containing a polytetrafluoroethylene carbonization bottle, and subjected to a hydrothermal reaction in a blast drying oven to obtain pretreated material, which is then crushed to obtain crushed material; the crushed material is subjected to high-temperature heat treatment under an inert atmosphere to obtain heat-treated material; the heat-treated material is mixed with liquid pitch, fused in a high-speed fusion machine to obtain fused material; and the fused material is subjected to surface modification under an inert atmosphere to obtain a high-rate hard carbon negative electrode material after cooling. The finished material can be applied in sodium ion batteries. The present application introduces nitrogen atoms, optimizes defects, improves the sodium ion transmission rate, and improves the rate performance.

This invention provides a method for preparing carbon quantum dots, their application in the detection of 4-nitrophenol and curcumin, a concentration detection method, and a visualization detection method. The method involves mixing tris(hydroxymethyl)aminomethane and phloroglucinol in a solvent, followed by heating in a reaction vessel to obtain the carbon quantum dots. This invention provides a simple and low-cost method for preparing carbon quantum dots, enabling rapid and low-cost detection of 4-NP and curcumin, thus meeting the detection needs for both.

This application relates to the field of materials technology, providing a chitosan-polyacrylonitrile composite material, its preparation method, and its application. The general structural formula of the chitosan-polyacrylonitrile composite material is as follows: This application uses inexpensive chitosan and polyacrylonitrile fiber as raw materials to develop a novel chitosan-polyacrylonitrile composite material, overcoming the solubility limitation of chitosan under acidic conditions and simultaneously enhancing its adsorption capacity for phenolic compounds and heavy metals. It exhibits higher selectivity for target pollutants, especially among eight different phenolic compounds (phenol, 4-methylphenol, 4-chlorophenol, 4-nitrophenol, hydroquinone, catechol, resorcinol, and phloroglucinol), showing excellent adsorption performance for hydroquinone, with an adsorption capacity as high as 316.84 mg·g⁻¹. ‑1 Furthermore, this application addresses the soft metal ion Hg. 2+ Its adsorption capacity is outstanding, with a maximum adsorption capacity of 237.18 mg·g⁻¹. ‑1 .

This invention provides a method for preparing chiral N-tert-butylsulfonamide compounds. The method uses N-tert-butylsulfonylimide as a starting material, employs Mn(CO)₅Br and a chiral PNN ligand as catalysts, and an alcohol as a solvent. A hydrogenation reaction occurs in this homogeneous catalytic system, yielding axially chiral diaryl nitrophenol compounds in high yield (99%) and with high ee values ​​(>99%). This reaction has the advantages of high efficiency, mild conditions, and environmental friendliness. The obtained chiral N-tert-butylsulfonamide can be deprotected with a sulfonyl protecting group to obtain the corresponding chiral primary amine.

The application discloses a high-temperature-resistant high-activity lipase mutant and application thereof, wherein the mutant is obtained by substituting at least one amino acid in three positions of 25th, 242nd and 283rd of the amino acid sequence shown in SEQ ID No. 1; the threonine in the 25th position is mutated into methionine, the serine in the 242nd position is mutated into glycine or alanine, and the aspartic acid in the 283rd position is mutated into proline. The application obtains the mutant by mutating the wild-type lipase, and the mutant can efficiently catalyze the generation of p-nitrophenol from p-nitrophenol palmitate, and the mutant shows significantly enhanced resistance under high-temperature conditions, thereby improving the high-temperature catalytic efficiency and effectively expanding the application range of the lipase under high-temperature conditions.

This invention provides a nanomaterial for tumor immunotherapy and its preparation method. The nanomaterial is prepared by a nanoprecipitation method using a phenylalanine-based polymer and a stabilizer. The phenylalanine polymer is obtained from triethylamine, p-nitrophenol, L-phenylalanine, and butanediol. The nanomaterial provided by this invention can induce the body to produce effective CD8+. + T-cell immune response, increased CD8 + The proportion of T cells, promoting CD8 + T-cell immune function, ultimately aiming to prevent and treat tumors, is a treatment approach that effectively treats tumors by influencing the function of the immune system.

The method for simultaneously determining multiple nitrophenol compounds in different food matrices according to the present invention involves preparing a series of mixed solutions with different concentrations of 2,4-dinitrophenol, 2,5-dinitrophenol, 2,6-dinitrophenol, 3,4-dinitrophenol, and 3,5-dinitrophenol using acetonitrile-acetic acid solution as standard samples; the food matrices to be tested are then subjected to extraction and purification treatment. The sample was obtained through a process; then, high-performance liquid chromatography-tandem mass spectrometry was used to detect the sample and standard to obtain the concentrations of 2,4-dinitrophenol, 2,5-dinitrophenol, 2,6-dinitrophenol, 3,4-dinitrophenol, and 3,5-dinitrophenol in the sample. The content of each nitrophenol compound in the food matrix was then calculated based on the concentrations of 2,4-dinitrophenol, 2,5-dinitrophenol, 2,6-dinitrophenol, 3,4-dinitrophenol, and 3,5-dinitrophenol in the sample.

This invention relates to the field of nanomaterials technology, and discloses a method for preparing and applying gold nanoparticles synthesized using microbial extracellular polymers (EPS). The method uses methylbazin exopolymers (EPS) as a green reducing agent and stabilizer, reacting them with chloroauric acid in an aqueous phase. By adjusting the EPS concentration, pH, and temperature, gold nanoparticles (EPS-Au NPs) can be synthesized in a controlled manner. The resulting nanoparticles exhibit high crystallinity and good dispersibility, and demonstrate ultra-high activity in catalyzing the reduction of 4-nitrophenol, with a TOF value reaching 485.53 h⁻¹. ‑1 This invention is superior to many traditional catalysts and has good cycle stability. The process of this invention is green and controllable, and the resulting catalyst has promising applications in wastewater treatment and other fields.

This invention relates to the application and method of a fluorescent ionic liquid in the detection of nitrophenol isomers. The fluorescent ionic liquid is (poly)1,3-di(N-methylimidazolyl)propane-1,4-naphthalenedicarboxylate, and the structure of the compound is shown in the following formula. The preparation method is as follows: First, 30 mL of NaOH solution (3 mol / L) and 9.47 g of 1,4-naphthalenedicarboxylate are added sequentially to a single-necked flask, and the mixture is refluxed at 30 °C for 24 h to obtain a clear brown solution, which is a sodium 1,4-naphthalenedicarboxylate solution. Next, 8 mL of 1,3-dibromopropane, 12 mL of N-methylimidazolium, and 50 mL of acetone are added sequentially to a three-necked flask. The mixture is stirred and refluxed at 45 °C for 20 h, washed three times with 50 mL of acetone each time, and filtered to obtain a white solid powder. Finally, the prepared sodium 1,4-naphthalenedicarboxylate solution and 8.3 g of the white solid product obtained in step two are added sequentially to a single-necked flask, and the mixture is stirred and reacted at 50 °C for 24 h. The prepared solution was rotary evaporated, dried, diluted with anhydrous ethanol, filtered, and dried again to obtain the target product (poly)1,3-di(N-methylimidazolyl)propane 1,4-naphthalenedicarboxylate. This invention is simple to operate and has high fluorescence intensity and sensitivity, making it suitable for fluorescence analysis and identification of nitrophenol isomers.

The application discloses an ultralow-temperature aluminum electrolytic capacitor and a preparation method thereof. The capacitor comprises an anode foil, a cathode foil, an electrolytic paper between the anode foil and the cathode foil, and an electrolyte solution contained in the electrolytic paper. The electrolyte solution comprises, by weight percentage, propylene carbonate 15-25%, methyl ethyl carbonate 20-28%, diethylene glycol dimethyl ether 16-26%, lithium tetrafluoroborate 7-12%, lithium bisfluorosulfonylimide 2-5%, lithium difluorobisoxalate borate 2-5%, vinyl sulfate 4-8%, methanedisulfonate methylene 1.5-3.5%, mesoporous silicon dioxide 4-9%, lithium hexafluorophosphate 0.2-1.0%, lithium bis-trifluoromethanesulfonylimide 1.5-5%, a chelating agent 0.01-0.05%, and p-nitrophenol 0.3-1.2%. The preparation method comprises core wrapping, drying treatment, ring-type immersion, liquid removal treatment, assembly waist bundling, and aging treatment. The capacity retention rate of the capacitor can reach more than 90% at an ultralow temperature of -55 DEG C, and the Z ratio is only 1.29, so that the ultralow temperature and high temperature stability are synergistically improved.

The present invention describes the development of a nanometric platform highly sensitive to the presence of two potential water contaminants, hydrazine and p-nitrophenol. This platform is an electrochemical cell containing a graphite mine electrode modified with nanomaterials as the working electrode, a platinum counter electrode, and an Ag / AgCl / Cl (3M) reference electrode. To develop the working electrode for the electrochemical platform, the surface of the graphite electrode was modified with 1-pyrene carboxylic acid and reduced graphene oxide using the droplet deposition technique. Subsequently, the new active surface of the electrode was decorated with molybdenum disulfide (MOS2) nanoroses using the electrodeposition method. The results of the electrochemical study demonstrate the electrocatalytic properties of the nanomaterials used in the platform's development, as well as the strong correlation between current intensity and the concentration of the target analytes. This platform enabled the quantification of the two aforementioned analytes in real water samples with low detection limits of approximately 9.3 and 13.7 nM for hydrazine and p-nitrophenol, respectively.

The application discloses a flexible polyimide film and a preparation method thereof, and relates to the technical field of polyimide films. In the preparation of the flexible polyimide film, 4,4'-(oxybis(methylene))bis(chlorobenzene) and 4-nitrophenol are reacted to obtain a dinitro intermediate; the dinitro intermediate is reduced by Raney nickel to obtain an ether-containing diamine monomer; 5-bromo-1,3-diaminobenzene and 3,5-bis(trifluoromethyl)phenylboronic acid are reacted to obtain a fluorine-containing monomer; gamma-aminopropyltriethoxysilane is hydrolyzed and grafted on the surface of boron nitride to obtain modified boron nitride; and the ether-containing diamine monomer, the fluorine-containing monomer, the modified boron nitride and pyromellitic dianhydride are in-situ polymerized to obtain the flexible polyimide film. The flexible polyimide film prepared by the application has excellent insulation, heat dissipation performance and mechanical flexibility.

This invention relates to a method for preparing 2',4-dichloro-2-aminodiphenyl ether, belonging to the field of chemical synthesis technology. The preparation method is as follows: S1, m-dinitrobenzene undergoes selective hydrogenation to obtain m-nitroaniline; S2, in a solvent, m-nitroaniline reacts with N-chlorosuccinimide to obtain 2-chloro-5-nitroaniline; S3, 2-chloro-5-nitroaniline, o-nitrophenol, a base, and a solvent undergo a co-heated reaction to obtain 2',4-dinitro-2-aminodiphenyl ether; S4, 2',4-dinitro-2-aminodiphenyl ether is dissolved in a solvent, and FeCl3 solution, sodium chloride, and Oxone are added. The reaction is catalyzed under ultraviolet light to obtain 2',4-dichloro-2-aminodiphenyl ether. The preparation method of this invention uses readily available raw materials, has good reaction efficiency, produces less waste, is cleaner and more environmentally friendly, and has a high conversion rate, making it suitable for industrial application.

This utility model discloses a p-nitrophenol reduction crystallization evaporator, specifically relating to the field of p-nitrophenol crystallization technology. It includes an evaporator body with an upper exhaust pipe fixedly connected to its top. The upper exhaust pipe has a dispersion exhaust assembly at its top. The dispersion exhaust assembly includes an exhaust valve fixed to the top of the upper exhaust pipe, and a dispersion pipe on one side of the upper exhaust pipe, which is fixedly connected to the evaporator body. The dispersion exhaust assembly also includes a dispersion valve, a side exhaust pipe, a connecting pipe, a diversion side pipe, and a side exhaust valve. The dispersion valve is threaded to the top of the dispersion pipe. This utility model, through the dispersion exhaust assembly, exhaust valve, and dispersion valve, can transport waste gas into the waste gas treatment pipeline. The side exhaust valve and diversion side pipe can quickly transport waste gas into the waste gas treatment pipeline, avoiding excessive pressure and potential safety hazards.

This invention relates to the field of nitric oxide donor technology, and particularly to a porphyrin-fused nitric oxide donor, its preparation method, and its application. The method includes the following steps: mixing an aromatic aldehyde containing a halomethyl group, potassium carbonate, and a solution of 3-trifluoromethyl-4-nitrophenol, reacting the mixture, extracting and washing, drying the organic phase, and concentrating under vacuum; purifying the first crude product by column chromatography; dissolving the NO donor intermediate, adding pyrrole for degassing, adding trifluoroacetic acid, then adding a solution of 2,3-dichloro-5,6-dicyanobenzoquinone; after the reaction is complete, adding triethylamine; recrystallizing and dissolving the second crude product, adding petroleum ether for sealing and freezing; filtering, washing the precipitate, drying, and purifying by column chromatography to obtain the porphyrin-fused nitric oxide donor. This method achieves spatial confinement and fixation of the NO donor group, integrating photodynamic therapy, gas therapy, and fluorescence tracer functions, and solves the problems of low spatial and temporal control precision, difficulty in balancing stability and release efficiency, and limited functionality of existing NO donors.

This invention relates to a method for preparing a lead-free antimony-based halide core-shell fluorescent probe and its application. The preparation method includes: dissolving CsBr and SbBr3 as metal sources in a strongly polar solvent to obtain solution A; and sequentially adding a surfactant and an inhibitor of SbBr3 to solution A. 3+ An antioxidant was used to oxidize the sample, resulting in a clear and transparent Cs-Sb-Br precursor solution. This Cs-Sb-Br precursor solution was then filtered and pre-coated to obtain solution B. Solution B was then subjected to antisolvent-induced in-situ coating growth to obtain solution C. Solution C contains a fluorescently active crystal structure. Solution C was then purified and dried to obtain a lead-free antimony halide core-shell fluorescent probe. This invention solves the problems of environmental toxicity and poor chemical stability faced by existing fluorescent materials, such as lead halide perovskites, in the detection of o-nitrophenol.

This invention provides a method for preparing an adsorbent for removing nitrophenol from nitrobenzene and its application. The preparation method includes the following steps: 1) subjecting a mixture including a precipitant, a metal salt, and a solvent to a hydrothermal reaction to obtain a reaction solution; 2) subjecting the reaction solution to a first drying treatment and a calcination treatment sequentially to obtain a metal compound; 3) subjecting a mixture including graphene oxide, a reducing agent, and a polyamine to a first reduction reaction to obtain a dilute sol of graphene oxide material; 4) adding the metal compound to the dilute sol of graphene oxide material to a second reduction reaction, followed by a second drying treatment to obtain the adsorbent. The above method is simple to use and can effectively remove nitrophenol from nitrobenzene without generating excessive waste liquid discharge during the adsorption process.

This invention proposes a PHEMA / ionic liquid / MXene / Ti composite hydrogel electrode and develops its application method in the electrochemical detection of phenolic pollutants. Using few-layer MXene as a conductive substrate, an ionic liquid and hydroxyethyl methacrylate are introduced. A homogeneous precursor system is constructed through vortex mixing and ultrasonic dispersion. A titanium mesh is used as the electrode substrate, and UV-initiated polymerization is employed to prepare the composite hydrogel electrode in one step. The entire preparation process is simple, efficient, and low-cost. This electrode utilizes the structural support of the three-dimensional PHEMA network, the high ionic conductivity and intercalation effect of EMIMBF4, and the high conductivity and abundant surface functional groups of MXene to form a synergistic effect. This not only effectively solves the technical problems of insufficient conductivity of PHEMA alone and the easy stacking of MXene sheets, but also significantly improves the electrocatalytic activity and structural stability of the electrode. When applied to the electrochemical detection of the phenolic pollutant p-nitrophenol, this electrode exhibits excellent detection performance, with a convenient detection process, high sensitivity, and accurate and reliable results.

The application discloses a Fe3O4@Au@CBpExP6 / Ti3C2T X MXene composite photoelectric material, its preparation method and application belong to the field of photoelectrochemistry, Au is decorated on Fe3O4, a layer of water-soluble expanded column [6] arene is wrapped on the surface of Au NPs, and the composite nanoparticles are loaded on Ti3C2T X MXene;Fe3O4@Au@CBpExP6 / Ti3C2T X MXene is used as a photoactive material, a signal on-off type photoelectrochemical PEC biosensing system is designed, and p-nitrophenol is detected;Ti3C2T X MXene has high conductivity, and the recombination probability of electrons and holes is reduced, based on Fe3O4@Au@CBpExP6 / Ti3C2T X MXene has multiple signal amplification capabilities, and the electrode modified by the composite material exhibits excellent performance when detecting p-nitrophenol in the environment.

The application belongs to the field of two-dimensional few-layer nanomaterial preparation and photocatalysis technology, and particularly relates to a preparation method of Bi2Ti2O7 / MXene two-dimensional composite few-layer material and application of the material in photocatalytic reduction of p-nitrophenol to p-aminophenol. The preparation method uses bismuth salt and titanium salt as raw materials, and polyhydric alcohol as a structure regulator. Bi2Ti2O7 two-dimensional few-layer material is prepared through hydrothermal reaction in an alkaline environment. Then, the surface of Bi2Ti2O7 is positively charged through surface protonation treatment, and the Bi2Ti2O7 is combined with MXene suspension through electrostatic interaction to construct two-dimensional composite few-layer material. The composite material has close interface contact and excellent photogenerated carrier separation efficiency, and exhibits significantly better catalytic activity than traditional morphology materials and simple mixed materials in the reaction of photocatalytic reduction of p-nitrophenol to p-aminophenol.

This invention relates to a method for synthesizing hydroquinone, a pharmaceutical and chemical intermediate. The invention comprises the following steps: (1) hydrolysis of p-chloronitrobenzene in an alkaline solution, adjusting the pH to 5-6 with acid to obtain p-nitrophenol; (2) reduction of p-nitrophenol and hydrogen under catalytic conditions to obtain p-aminophenol; (3) diazotization of a dilute acid solution of p-aminophenol with sodium nitrite; the reaction solution reacts with a dilute acid solution used for hydrolysis to obtain hydroquinone; after the reaction, solvent extraction is performed, followed by concentration, centrifugation, and drying. The reactions are carried out in a microreactor system. Compared with existing hydroquinone production processes, this invention uses continuous flow technology for continuous production, greatly improving production efficiency and saving production costs. It solves the problems of high levels of waste, low selectivity, and high purification costs associated with traditional batch processes. Furthermore, the continuous flow production process has a lower scale-up effect, easier process control, and is suitable for industrial production.

The application relates to the technical field of functional polymer materials, and discloses an in-situ polymerized functional polymer composite film as well as a preparation method and application thereof. The polymer composite film comprises a conjugated microporous polymer matrix and MXene nanosheets; the conjugated microporous polymer matrix is formed by copolymerization of 4,4',4''-tris(9H-carbazol-9-yl)triphenylamine and N-(2-aminoethyl)carbazole hydrobromide; and the MXene nanosheets are embeddedly dispersed in a three-dimensional microporous network of the conjugated microporous polymer matrix. The structural design fully exposes the electrochemical active sites of the MXene nanosheets, the porous structure of the conjugated microporous polymer provides rich mass transfer channels and a large specific surface area, and the two are synergistically combined to endow the composite film with excellent electron transmission capacity and structural stability. When the composite film is used as a sensitive film of an electrochemical sensor, high-sensitivity simultaneous detection of ortho-nitrophenol, meta-nitrophenol and para-nitrophenol isomers can be realized.

The application provides a preparation method of a nanocomposite catalyst, comprising the following steps: preparing a Cu-BTC carrier by a solvothermal method; anchoring Pd species in the carrier channel under an acid condition by using a sol immobilization method to obtain a Pd / Cu-BTC precursor; and placing the Pd / Cu-BTC precursor in an aqueous solution containing 4-nitrophenol and sodium borohydride to react, so that the Pd / Cu-BTC precursor is in-situ converted into a high-performance PdCu-Cu2O nanocomposite catalyst in an aqueous solution at normal temperature. The sol immobilization process is adopted to accurately anchor the palladium species in the regular channel of the Cu-BTC carrier, fundamentally overcoming the technical contradiction that the high dispersion and the structural integrity of the traditional impregnation method are difficult to be compatible, realizing the high dispersion of the active site and the integrity of the carrier structure, and effectively reducing the 4-nitrophenol into 4-aminophenol, and the nanocomposite catalyst has excellent catalytic performance in pollutant degradation and resource utilization.

This invention discloses a cationic dye and its preparation method, belonging to the field of dye technology and patent classification number C09B26 / 04. The method uses 2-amino-4-nitrophenol as a starting material, which undergoes diazotization and coupling with N-ethyl-N-(2-hydroxyethyl)aniline to obtain an azo precursor containing dihydroxyl groups. Subsequently, this precursor undergoes etherification, silanization, and quaternization reactions sequentially with epichlorohydrin, γ-aminopropyltriethoxysilane, and diethyl 2-bromoethylphosphonate to generate a dye intermediate containing siloxane and quaternary ammonium salt groups. Finally, by adding tetraethyl orthosilicate and tributyl borate, a sol-gel reaction is carried out under acidic conditions to form a nano-borosilicate coated structure. After precipitation, washing, and drying, the final product is obtained. The cationic dye prepared by this invention exhibits good alkali resistance.

The application discloses a three-dimensional cadmium metal organic framework material with a fluorescent detection function, and synthesis and application thereof, and has a chemical formula of Cd4(BTB)3(DMF)2(H2O)6·((CH3)2NH2). The synthesis method of the three-dimensional cadmium metal organic framework material is generated by a solvothermal reaction of 1,3,5 benzene-triphenylmethane acid BTB and anhydrous cadmium nitrate. The three-dimensional cadmium metal organic framework material with the fluorescent detection function is applied to detection of p-nitrophenol. The complex can specifically detect p-nitrophenol, has strong anti-interference ability, low detection limit and fast response speed, has strong acid and alkali resistance, and good fluorescent stability. In addition, the three-dimensional cadmium metal organic framework material has low raw material cost, simple and environment-friendly synthesis method, and high yield.