147 results about "Organic dye" patented technology

The invention belongs to the technical field of organic dye synthesis and application, and discloses a conjugated compound containing a benzothiophenazine structure as well as a preparation method and application thereof, and the conjugated compound containing the benzothiophenazine structure has excellent photophysical properties, singlet oxygen yield and superoxide anion generation capacity. The novel conjugated compounds ENBO-NI and ENBS-NI containing benzothiophenazine structures are successfully prepared by replacing a benzene ring of Nile blue with a cycloalkane structure and adjusting the electron donating ability of an R1 group. The two compounds have near infrared fluorescence emission, good solubility and relatively high ROS yield. Compared with a classical photosensitizer NB, the singlet oxygen yield of ENBO-NI is increased by about 117.65%, and the singlet oxygen yield of ENBS-NI is as high as 70%. The absorption wavelength of the conjugated compound is in a red light wave band. The preparation process is simple and efficient, large-scale production is easy, and the preparation method has a wide clinical application prospect.

The invention provides a dye / ion separation membrane with pore diameter and charge coordinated regulation and control as well as a preparation method and application thereof, and belongs to the field of preparation of a double-layer ionic covalent organic framework (COFs) composite membrane. An aromatic polyamide ultrafiltration membrane is used as a base membrane, and a double-layer COFs membrane is constructed on the surface of the aromatic polyamide ultrafiltration membrane through a multi-time interfacial polymerization method. The first layer is a positive charge COFs layer formed by reacting a guanidyl monomer with 1, 3, 5-triformyl phloroglucinol (Tp); and the second layer is a negative charge COFs layer formed by reacting ionic aromatic diamine with Tp. By adjusting the type and concentration of the monomers, the pore diameter and charge distribution of the film layer can be synergistically regulated and controlled, and the double-layer composite film which is stable in structure and orderly stacked is constructed. The obtained membrane has molecular sieve separation and electrostatic regulation functions, can efficiently intercept organic dye molecules in high-salt printing and dyeing wastewater, and has high flux, high selectivity and good chemical stability.

The invention discloses a layered nano-porous copper loaded cuprous oxide / copper oxide nanowire composite material as well as a preparation method and application thereof. The material is a thin strip and comprises an amorphous substrate thin strip, multiple layers of nano-porous copper covering an amorphous substrate and a cuprous oxide / copper oxide two-component heterojunction nanowire loaded on the surface of the nano-porous copper. The preparation method comprises the following steps: firstly, freely dealloying an amorphous ribbon, and adding PVP (Polyvinyl Pyrrolidone) into dealloying corrosive liquid to generate layered nano-porous copper; then, copper hydroxide nanowires grow on the surface of each layer of nano-porous copper in situ through the anodic oxidation technology; and finally, converting the copper hydroxide into cuprous oxide / copper oxide nanowires with different component proportions by regulating and controlling the temperature by adopting a heat treatment process. The prepared composite material has a larger specific surface area and more active sites, and has unique structure and performance advantages in the field of photocatalytic degradation of organic dyes.

The application relates to the field of graphene preparation, and particularly provides a method for preparing reduced graphene oxide (rGO) by visible light in an aqueous solution, which uses an LED lamp simulating the visible light section of sunlight as a light source under normal temperature and pressure, and reduces industrial-grade graphene oxide (GO) to prepare rGO in a homogeneous aqueous solution system in the presence of an organic dye molecule eosin Y (water-soluble) as a photosensitizer and triethylamine as an electron sacrificial agent. The method overcomes the shortcomings of a low yield, the need for a strong reducing agent and high pollution in a traditional preparation process, and has the advantages of simple process, easy separation, high yield, low energy consumption, low cost and no pollution, and the prepared rGO has a smooth structure, a thin thickness and a perfect graphitization degree.

The invention belongs to the technical field of organic dyes, and particularly relates to an anti-ultraviolet dye taking tannic acid as a coupling component as well as a preparation method and application of the anti-ultraviolet dye. Under a stirring condition, adding a diazonium salt solution of an arylamine derivative into the mixed solution for reaction, and continuously stirring for reaction after the diazonium salt solution is added, so as to obtain a reaction solution; adjusting the pH value of the reaction liquid, evaporating, filtering and drying to obtain the anti-ultraviolet dye taking tannic acid as the coupling component. The uvioresistant dye taking tannic acid as a coupling component can endow real silk with color and uvioresistant function during dyeing; the dyeing process is simple and short in time, damage to real silk is small, dye liquor composition is simple, follow-up wastewater is easy to treat, and the whole dyeing process is low-carbon and environment-friendly.

The display device according to this disclosure includes: a substrate including a display area and a non-display area; a plurality of light-emitting diodes (LEDs) disposed on the substrate; an encapsulation layer disposed over the plurality of LEDs; a touch sensing unit disposed on the encapsulation layer and including a plurality of touch electrodes; a plurality of organic dye patterns disposed on the touch sensing unit overlapping the light-emitting areas of the plurality of LEDs, and having a lower surface larger than the upper surface; and a black matrix exposing the upper surface of the plurality of organic dye patterns. Therefore, light is refracted from the side surfaces of the plurality of organic dye patterns to the upper surface of the plurality of organic dye patterns, thereby improving luminous efficiency.

The application relates to the technical field of organic dyes, in particular to a double-active-group cationic modified anthraquinone reactive dye as well as a preparation method and application thereof. The preparation method of the double-active-group cationic modified anthraquinone reactive dye comprises the following steps: S1: dissolving 1-amino-4-sulfonic acid-1'-(N,N-dimethylpropylaminomethyl) anthraquinone in ice water, then adding melamine dropwise to carry out reaction, and obtaining an intermediate solution; S2: the intermediate solution is warmed to 20-25 DEG C, and hydroxyethyl sulfone sulfonate is added to carry out reaction; after the reaction is completed, salting-out is carried out, and the double-active-group cationic modified anthraquinone reactive dye is obtained, as shown in formula (1). The reactive dye is synergized through the cooperation of "double active groups + cationic adjustment + precise water-solubility design", can guarantee water-solubility and dyeing fastness, and can completely get rid of the dependence on a large amount of salt.

The invention discloses a plant-based water filtering material and a preparation method thereof, and relates to the technical field of filtering materials. When the plant-based water body filtering material is prepared, 4-(10, 15, 20-triphenyl porphyrin-5-yl) aniline sequentially reacts with acrylic acid-2, 3-epoxypropyl ester and zinc acetate to obtain an alkenyl porphyrin zinc complex; the preparation method comprises the following steps: reacting chitosan with an alkenyl porphyrin zinc complex to obtain modified chitosan; reacting the oxidized reed carbon with butyl trimethyl ammonium chloride to obtain modified reed carbon; preparing a spinning solution from polybutylene terephthalate, the modified chitosan and the modified reed carbon, and performing electrostatic spinning to obtain a fiber membrane; itaconic acid and alkenyl benzisothiazolinone are prepared into a finishing solution; and finishing the fiber membrane with the finishing liquid to obtain the plant-based water filtering material. The plant-based water filtering material prepared by the invention can adsorb and catalytically degrade organic dyes in wastewater and adsorb heavy metals, and also has an antibacterial effect.

This invention discloses a cross-linked cyclodextrin polymer, its preparation method, and its applications, belonging to the field of compound synthesis and separation enrichment technology. This invention employs a Sonogashira coupling reaction to react α, β, and γ cyclodextrins with 2-, 3-, or 6-position fully iodine-substituted cyclodextrins with polyalkynyl groups, respectively, to obtain cross-linked cyclodextrin polymers with large specific surface areas and numerous cyclodextrin cavities. These polymers exhibit good separation effects for organic dyes, small organic molecule pollutants, and harmful components in cigarette smoke.

The application discloses a preparation method of nanocellulose / polyethyleneimine / MIL-101(Cr) composite porous material for efficiently capturing dyes and heavy metal ions in wastewater. First, Cr(NO3)3.9H2O is selected as a metal ion source, H2BDC is selected as an organic ligand, and water is selected as a solvent, and MIL-101(Cr) powder without fluorine is prepared through a hydrothermal synthesis method; then, CNF is selected as a green polymer matrix, PEI is selected as a functional reagent, and MIL-101(Cr) nano-filler is simply complexed with a crosslinking agent to prepare a series of new nanocellulose / polyethyleneimine / MIL-101(Cr) aerogels which are uniform and low in density, can efficiently absorb organic dyes and heavy metal ions in wastewater, and have a synergistic effect on simultaneously absorbing dyes and heavy metal ions in a binary system. The raw materials in the application are derived from biomass, have the advantages of biodegradability and good biocompatibility, and have the characteristics of easy availability, simple preparation method, short operation process, recyclability, environmental protection and economy. The application has a good application prospect in wastewater treatment and other industries.

The application belongs to the technical field of composite micro / nano fiber materials, and particularly relates to a polyimide and polymer composite micro / nano fiber nonwoven fabric, a preparation method and application thereof. The nonwoven fabric is a three-dimensional porous network composed of composite micro / nano fibers with a skin-core structure; the skin layer material of the composite micro / nano fiber is polyimide, and the core layer material is a polymer; the polymer is at least one of polyacrylonitrile, polyvinylidene fluoride and polyarylene ether. The preparation method is to prepare polyimide spinning solution and polymer spinning solution respectively, then perform coaxial electrospinning, and then perform post-processing. The polyimide and polymer composite micro / nano fiber nonwoven fabric has excellent chemical corrosion resistance, excellent mechanical properties, excellent thermal stability, low cost, uniform material compounding, high porosity and high efficient cyclic adsorption performance, can efficiently remove heavy metal ions and organic dyes in water, and has a wide application prospect in the field of water treatment.

The invention discloses a near-infrared response self-repairing coating and a preparation method thereof, and relates to the technical field of functional coatings. The invention relates to a near-infrared response self-repairing coating which is prepared from the following components in parts by mass: 100 parts of matrix resin, 1-3 parts of a near-infrared absorbent, 10-20 parts of a self-repairing agent, 8-15 parts of a curing agent, 1-3 parts of a dispersing agent, 0.5-2 parts of a defoaming agent and 20-30 parts of a solvent. The organic molecule near-infrared absorbent with a specific structure is adopted, the compatibility with matrix resin is good, molecular-level uniform dispersion can be achieved, the problem that a traditional inorganic photo-thermal material is prone to agglomeration is solved, meanwhile, the photo-thermal conversion efficiency is remarkably improved, and the defect that a conventional organic dye is insufficient in photo-thermal conversion capacity is overcome.

This invention relates to the field of inorganic non-metallic adsorbent technology, specifically an oil shale slag nanocomposite adsorbent, its preparation method, and its application. It addresses the problems of low controllability, poor stability, poor adsorption effect, poor repeatability, and short cycle life associated with the application of oil shale slag as an adsorbent. The invention involves dispersing oil shale slag powder in a sodium silicate nonahydrate aqueous solution, stirring, and ultrasonicating to obtain suspension 1. A manganese sulfate aqueous solution is added to suspension 1 to obtain suspension 2. Suspension 2 undergoes a hydrothermal reaction, and the reaction product is centrifuged until the pH is neutral. The product is then dried, ground, and sieved to obtain the oil shale slag nanocomposite adsorbent, which can be applied to the adsorption of organic dyes. This invention significantly improves the reactivity, removal capacity, and adsorption stability of the oil shale slag nanocomposite adsorbent for organic pollutants, exhibiting excellent repeatability and cycle life, providing an economical, environmentally friendly, and sustainable solution for water treatment and solid waste management.

The application discloses a method for synthesizing high-catalysis and high-antibacterial-activity nano ZnO multi-level structure material, and belongs to the field of preparation of nano inorganic materials. The application provides a new method for preparing nano ZnO multi-level structure material with different morphologies in a one-step method by using ethylene glycol and an organic solvent as mixed solvents at normal pressure and in a low temperature range, and high-activity bowl-shaped multi-level structure of nano ZnO self-assembled is obtained in a simple system for the first time, without additional additives or strong alkali, so that the convenient, controllable and green synthesis of high-activity nano ZnO multi-level structure is realized. The prepared nano ZnO multi-level structure material has the performance of photocatalytic degradation of organic dyes and excellent antibacterial performance.

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 present application relates to the technical field of water treatment, in particular to a kind of lemon acid modified bagasse biochar and its preparation method and application in removing malachite green in water.The present application uses bagasse as raw material, uses lemon acid as modifier, prepares the alkali treated lemon acid modified bagasse biochar by high-temperature limited oxygen pyrolysis, and is used to absorb organic dye malachite green in water, and the adsorption capacity can reach 1139 mg·g ‑1 .

This invention provides an easily recyclable, floating cyano-modified carbon nitride catalytic reactor for the natural photodegradation of polluted water bodies from dyeing and printing industries, along with its preparation method and application, belonging to the field of photocatalytic water treatment. Addressing the problems of difficult recovery and low carrier separation efficiency of traditional powder photocatalysts, this invention provides a carbon nitride photocatalytic material co-modified with cyano and sodium ions. This material is loaded onto graphite felt to form a photocatalytic film, which is then wrapped and fixed by an anti-floating mesh to constitute a floating catalytic reactor. The strong electron-withdrawing effect of cyano groups and the intercalation coordination effect of sodium ions synergistically promote the separation and migration of photogenerated carriers. This reactor is self-floating and easily recyclable, and can efficiently degrade organic dye pollutants in dyeing and printing water bodies under natural light, making it suitable for the remediation of static or slow-flowing water bodies such as rivers in dyeing and printing industrial parks. This invention features a stable structure, easy recovery, and modular deployment, providing a feasible solution for the transformation of photocatalytic technology into practical dyeing and printing water treatment projects.

The invention discloses an ABS (Acrylonitrile Butadiene Styrene) composite material as well as a preparation method and application thereof. The ABS composite material is prepared from the following components in parts by weight: 87 to 99 parts of ABS resin, 0.5 to 5 parts of lanthanide oxide, 0.5 to 5 parts of liquid crystal polymer, 0.1 to 0.5 part of carbon nano tube, nano zinc oxide, organic dye molecules and a carbon-based nano material, the mass ratio of the nano zinc oxide to the organic dye molecules to the carbon-based nano material is (2-4): (3-5): (2-4); the total dosage of the nano zinc oxide, the organic dye molecules and the carbon-based nano material is 3-7 parts. According to the ABS composite material provided by the invention, the time required by laser marking is shortened, the definition of laser marking is improved, and the carbonization or yellowing phenomenon caused by local overheating of the surface of the material is avoided.

Optical devices include a visible light source, a visible light detector, and a multi-layer film article in the pathway between the visible light source and the visible light detector. The multi-layer film article includes an optical film layer and an optically clear adhesive layer. The optically clear adhesive layer includes a polymeric adhesive matrix, and at least one infrared light absorbing material that absorbs light in the range of 680-1100 nanometers. The infrared light absorbing material is an organic dye.

This invention discloses a class of non-conjugated N-methyl site-linked photosensitive dyes, their preparation methods, and applications, relating to the field of fine chemical organic dye technology. The photosensitive dyes have the structure of general formula 1. These non-conjugated N-methyl site-linked photosensitive dyes possess no heavy atom modification, dual-cation characteristics, and exhibit near-infrared absorption and emission, high molar extinction coefficient, and high photosensitization efficiency, specifically generating type I and type II reactive oxygen species. They demonstrate excellent tumor cell killing ability under near-infrared light irradiation, showing promising application prospects in anti-tumor therapy.

The invention discloses an oil shale waste nano-composite adsorbent as well as a preparation method and application thereof, relates to the technical field of inorganic non-metal adsorbents, and solves the problems of low controllability, poor stability, poor adsorption effect, poor repeatability and short cycle service life when oil shale waste is applied to the field of adsorbents. The preparation method comprises the following steps: dispersing oil shale waste powder in a sodium silicate nonahydrate aqueous solution, stirring and performing ultrasonic treatment to obtain a suspension 1; adding a manganese sulfate aqueous solution into the turbid liquid 1 to obtain turbid liquid 2; carrying out hydrothermal reaction on the suspension 2, and centrifuging a reaction product until the pH is neutral; and drying, grinding and sieving to obtain the oil shale waste nano-composite adsorbent which can be applied to adsorption of organic dyes. The reaction activity, the removal capacity and the adsorption stability of the oil shale waste nano-composite adsorbent on organic pollutants are remarkably improved, the oil shale waste nano-composite adsorbent has excellent repeatability and cycle service life, and an economic, environment-friendly and sustainable solution is provided for water treatment and solid waste management.

The application discloses a corn straw modified titanium dioxide photocatalyst, a preparation method and application thereof. The preparation method comprises the following steps: (1) crushing corn straw, calcining the crushed corn straw, and obtaining calcined corn straw; (2) mixing the calcined corn straw, ethanol and water to obtain a mixed solution A; mixing tetrabutyl titanate, glacial acetic acid and ethanol to obtain a mixed solution B; adding the mixed solution A into the mixed solution B to react, and then standing to obtain a gel; wherein the mass ratio of the corn straw to the tetrabutyl titanate is 0.05-0.15:100; wherein the mass of the tetrabutyl titanate is calculated based on the mass of completely formed titanium dioxide; (3) drying the gel to obtain a dry gel; and calcining the dry gel to obtain the corn straw modified titanium dioxide photocatalyst. The modified titanium dioxide photocatalyst can be used for degrading organic dye sewage, and can effectively degrade methyl violet in particular.

The invention provides a selenium-doped layered mixed-phase molybdenum disulfide-based piezoelectric catalyst, which is prepared by the following steps: adding selenium powder and sodium borohydride into an ethanol water solution to obtain a selenium-containing solution; adding a molybdenum source and a sulfur source into the selenium-containing solution, and stirring to obtain a reddish brown precursor solution; performing hydrothermal crystallization on the reddish brown precursor solution to obtain a black solid; grinding the black solid into powder, adding into a sodium hydroxide aqueous solution, stirring in a water bath, filtering and collecting the solid; and grinding the collected solid again to obtain the selenium-doped layered mixed-phase molybdenum disulfide-based piezoelectric catalyst. The molybdenum disulfide-based piezoelectric catalyst prepared by the invention is used for performing piezoelectric catalytic degradation on organic wastewater containing antibiotics and / or organic dyes in a microwave environment. According to the molybdenum disulfide-based piezoelectric catalyst, the out-of-plane piezoelectric response is improved, the carrier separation efficiency is improved, the problems that a traditional molybdenum disulfide piezoelectric material is low in active site density and low in carrier separation efficiency are solved, and the molybdenum disulfide-based piezoelectric catalyst can be recycled.

The application provides a spherical lignin-phenolic resin and a preparation method and application thereof in adsorbing N-containing organic dyes, and belongs to the technical field of adsorbing materials. The lignin-phenolic resin with regular spherical morphology is prepared by one-step condensation polymerization reaction through the reverse suspension polymerization method under acid catalysis, wherein lignin, hydroquinone and trioxane are used as raw materials. The lignin belongs to renewable resources, has the characteristics of low cost and environmental friendliness, can replace phenol as the main phenol source, and the replacement rate can reach 75%. The yield of the synthesized phenolic resin is as high as 60-80%. In addition, the monomer type can be selected to introduce rich phenolic hydroxyl groups, sulfonic acid groups and other oxygen-containing groups in the resin, the monomer ratio is controlled to change the crosslinking structure of the resin, the adsorption capacity of the resin for N-containing organic dyes is effectively improved, and efficient adsorption of rhodamine B and methylene blue can be realized.

The present application relates to a kind of functional materials for organic dye adsorption and degradation and its preparation method and application, belong to pollutant degradation field.The present application uses one-step hydrothermal synthesis method, with anhydrous ferric chloride, tin chloride tetrahydrate and sodium hydroxide as raw material, successfully constructs the Fe (Sn (OH) 6) / FeSnO (OH) 5 heterojunction composite material with close interface combination.The material can realize the efficient removal of typical organic pollutants methylene blue at normal temperature and pressure, and the degradation rate can reach more than 90% in a short time, showing excellent adsorption and degradation performance.The present application has simple process, mild reaction condition, low raw material cost, avoids complex post-processing process, has good scalability and application potential.The material can provide an efficient, economical technical solution for the treatment of refractory organic pollutants in water, has significant environmental benefits and practical application value.

The invention discloses a preparation method, a product and application of a Co / CN coated SiO2 composite material, and belongs to the technical field of wastewater treatment. The Co / CN coated SiO2 composite material comprises a silicon dioxide carrier, cobalt nanoparticles loaded on the carrier and a carbon nitrogen layer coated on the surfaces of the cobalt nanoparticles. The preparation method comprises the following steps: firstly, preparing the silicon dioxide carrier; and mixing cobalt nitrate hexahydrate, the silicon dioxide carrier and a buffer solution, stirring, adding dopamine, reacting at room temperature to obtain a black brown product, washing, and calcining in an inert atmosphere to obtain the Co / CN coated SiO2 composite material. The material can efficiently catalyze and degrade organic dyes such as bisphenol A, methyl orange and the like in the presence of peroxymonosulfonate, has the advantages of mild reaction conditions, high catalytic activity, good stability and the like, and is suitable for treating organic polluted wastewater.

The application provides a VS4 molecular sieve membrane, a solvothermal preparation method thereof and application of the VS4 molecular sieve membrane in organic dye interception, and the polycrystalline VS4 film layer has adjustable micro-morphology and good intergrowth. The preparation method comprises the following steps: sequentially loading a porous carrier and a precursor solution with a pH value of 8-11 into a reaction kettle to perform solvothermal reaction; after the reaction is completed, the temperature of the reaction liquid is cooled to room temperature, and the VS4 molecular sieve membrane is obtained through washing and drying. By adjusting the acid-base degree of the precursor solution and optimizing the solvothermal parameters to control the nucleation and growth kinetics of the VS4 crystal grains, the raw material supply at the interface between the reaction liquid and the carrier is ensured, the prepared VS4 molecular sieve membrane has good intergrowth, compactness and uniformity, exhibits excellent dye interception performance on organic dye molecules, and has good pressure resistance and long-term operation stability. In summary, the application develops the VS4 molecular sieve membrane and a solvothermal preparation process of the VS4 molecular sieve membrane, and provides a corresponding solution for the treatment of textile dye wastewater.

The invention provides a phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand which is prepared by the following steps: in an inert gas atmosphere, mixing a compound benzoxazole with anhydrous tetrahydrofuran, cooling to-95 to-65 DEG C, adding an n-butyllithium solution dissolved in an organic solvent, stirring at-95 to-65 DEG C for 0.5-4 hours, adding diphenylphosphoryl chloride, stirring at room temperature for 8-10 hours, filtering, washing, and drying to obtain the phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand. Carrying out post-treatment on the obtained reaction liquid to obtain a phenyl phosphonic acid bis (o-isocyano phenol) ester ligand; compared with the most common organic dye photosensitizer, the copper-based photosensitizer prepared from the phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand overcomes the defect that the catalytic activity of the organic dye photosensitizer is rapidly reduced under long-term illumination, and in addition, the organic dye photosensitizer is easy to generate an aggregation-induced quenching effect; the photosensitizer disclosed by the invention does not generate an aggregation-induced quenching effect; compared with an iridium complex photosensitizer which is commonly used at present, the cuprous photosensitizer provided by the invention is more environment-friendly.

This continuous type inkjet ink composition contains a dye, a resin, an electrical conductivity imparting agent, and an organic solvent. The dye is an organic dye having a disazo backbone. The electrical conductivity imparting agent is an ionic compound having, at an anionic portion thereof, at least one element selected from the group consisting of phosphorus and boron. The continuous type inkjet ink composition causes the contained dye to be dissolved therein, and enables obtaining of a printed matter having excellent retort resistance.