49 results about "Dibenzothiophene sulfone" patented technology

The invention belongs to the technical field of environmental protection, and in particular relates to preparation and application of a supported iron-based metal organic framework catalyst PTA@MIL-100 (Fe) synthesized by an in situ hydrothermal method. Because the molecular diameter of phosphotungstic acid (-1.2nm) is larger than the window diameter of an iron-based metal organic framework cage-shape hole (-0.86nm), the phosphotungstic acid is difficult to fall off and easy to recycle and reuse. The catalyst has a large specific surface area, can be used for the pre-adsorption of a substrate, and is in favor of the mass transfer of the reactants and products. In the absence of a phase transfer agent, the highly dispersed catalytic activity center phosphotungstic acid fully converts dibenzothiophene into dibenzothiophene sulfone in model oil, so as to completely remove dibenzothiophene from the model oil. The catalyst of the invention is applied to about 500mass ppm gasoline, and the organic sulfur removal rate reaches 93%. The preparation has the advantages of cheap raw materials, simple synthesis process, strong operability and wide application prospect.

The invention relates to a new method for removing sulfides from fuel oil. The method is characterized in that low-price polyether type octadecylamine ionic liquid is used as an extracting agent, and a simulated oil product and real gasoline are extracted for sulfide removal at a temperature close to room temperature. Under the conditions that the agent-oil mass ratio is (1.5:1)-(3.5:1), the reaction temperature is 30-40 DEG C and the reaction time is 5-10 minutes, almost complete removal of dibenzothiophene, benzothiophene, methyl phenyl sulfide, phenyl sulfide, benzothiophene sulfone and dibenzothiophene sulfone in the simulated oil product is realized by virtue of secondary-stage extraction, the sulfides in 90# and 93# real gasoline are removed, and the third-stage desulfurization rates are 72.3% and 89.4% respectively. Compared with the prior art, the method provided by the invention has the following characteristics: (1) the ionic liquid is low in cost and good in stability, has almost no residue in oil products, and is high in reuse rate; (2) the energy consumption is low (the reaction can be performed at room temperature and the reaction time is short); (3) the equipment requirement is simple; and (4) a new method is provided for an extraction-oxidation coupling desulfurization process.

The invention is applicable to the technical field of organic materials and provides an organic semiconductor material and a preparation method and application thereof. The organic semiconductor material provided by the invention has a structural formula as described in the specification.

The invention discloses an aggregation-induced emissive blue-ray molecule by construction of dibenzothiophene sulfone unit as well as a preparation method and application of the aggregation-induced emissive blue-ray molecule. Starting from 3,7-di-brominated dibenzothiophene sulfone, tetraphenyl ethylene units with different replace sites are introduced by means of a one-step Suzuki reaction to finally obtain the target compound. Controllable adjustment of emission colors can be realized by fine control of the structure and adopting different connecting sites and the method for adjusting conjugated degree. The aggregation-induced emissive blue-ray molecule has excellent thermal stability, has relatively high solid-state fluorescence quantum yield and blue-ray emission, and can be used as a blue-ray organic emissive diode luminescent layer material. In the blue-ray molecule, the blue-green light emission color has the coordinates of (0.19, 0.36) and current efficiency of 8.7cd/A, and the blue light emission color has coordinates of (0.17, 0.28) and current efficiency of 6.2cd/A.

The invention belongs to the field of organic electroluminescent materials and discloses an organic semiconductor material containing dibenzothiophene sulfone, a preparation method of the organic semiconductor material and an organic electroluminescent device. The organic semiconductor material has a general formula shown in a drawing, wherein R is a hydrogen atom or C1-C8 alkyl. The organic semiconductor material containing dibenzothiophene sulfone, disclosed by the invention, has excellent thermal stability and has good solubility and film forming property, and shown by spectrum tests, the maximum light emission wavelength of the material is located in a blue light range; meanwhile, due to the existence of carbazole and dibenzothiophene sulfone in the structure of the material, the material has bipolar transmission performance.

The invention discloses a ruthenium complex luminescent material containing a dibenzothiophene sulfone group and a use thereof. The ruthenium complex takes a dibenzothiophene sulfone pyridine derivative as a ring metal ligand and takes picolinic acid as an auxiliary ligand; and a hole transport unit is introduced on the ring metal ligand, to balance the electron and hole transport capability of the ruthenium complex. The ruthenium complex is doped in PVK and PBD to form a light-emitting layer, and a high-efficiency polymer yellow light device is obtained; the ruthenium complex and FIrPic are mixed as a dopant, are doped into polymer PVK and OXD-7 to form a light-emitting layer. The complementary color principle is utilized to obtain an efficient polymer white light device, and the application of an OLED in flat panel display and white light lighting is promoted.

The invention belongs to the field of organic semiconductor materials, and discloses an organic semiconductor material containing dibenzothiophene sulfone, and a preparation method and an application thereof. The organic semiconductor material has a general formula of (I). In the formula, Ar- is aromatic group. According to the invention, through interactions and mutual influences of anthryl, dibenzothiophene sulfone, and substituted aryl units, the organic semiconductor material containing dibenzothiophene sulfone unit has excellent carrier transportation performance and thermal stability. With the existences of dibenzothiophene sulfone and electron withdrawing groups such as fluorine group, cyano group, aldehyde group, or nitro group, the organic semiconductor material containing naphthalene, anthracene, and dibenzothiophene sulfone units has relatively high electron mobility. When a luminescent layer prepared by using the organic semiconductor material is used in an organic luminescent device, charge balance of the luminescent layer can be promoted, such that luminous efficiency of the organic electroluminescent device can be improved.

Discussed is a delayed fluorescence compound including a first electron donor moiety of indolo-[3,2,1-j,k]carbazole; a second electron donor moiety selected from indolo-[3,2,1-j,k]carbazole, carbazole, or triphenylamine; and an electron acceptor moiety selected from dibenzothiophene sulfone or diphenyl sulfone, wherein the first and second electron donor moieties are combined to the electron acceptor moiety, and the electron acceptor moiety is combined to a third position or a sixth position of the first electron donor moiety.

The invention discloses a D-A type conjugated polymer and a preparation method and application thereof. The polymer is obtained by taking dibenzothiophene sulfone as an electron donor and constructing different electron acceptor units through a cross-coupling strategy, and the polymer has high chemical stability and thermal stability, shows strong absorption in a visible light region, can efficiently use the sunlight, and has excellent photocatalytic water decomposition hydrogen production performance under the condition that no cocatalyst is added.

The invention relates to the field of liquid crystals, and in particular relates to fluorine-containing dibenzothiophene sulfone single liquid crystal applied in a liquid crystal composition and a liquid crystal display, and a preparation method thereof. The fluorine-containing dibenzothiophene sulfone single liquid crystal has the structure formula shown in the specification, wherein in the formula, X is H or F, Y is H or F, W is linear-chain alkyl or linear-chain alkoxyl of C1-C10; and at least one substituent group of X and Y is F. According to the fluorine-containing dibenzothiophene sulfone single liquid crystal and the preparation method and applications thereof, not only is the synthesis method simple, but also the fluorine-containing dibenzothiophene sulfone single liquid crystal contains the two polar groups of fluorine and dibenzothiophene sulfone, so that the polarity of molecules can be enhanced, and the product has wider nematic phase temperature range, as well as larger anisotropicity and higher resistivity; and the fluorine-containing dibenzothiophene sulfone single liquid crystal can be liquid crystal components to improve the property of the liquid crystal material, and can also be used for producing the liquid crystal display.

The invention discloses an organic semiconductor material containing naphthalene, anthracene and dibenzothiophene sulfone units and a preparation method and an application thereof. The molecular structure general formula of the organic semiconductor material is shown as a formula (I) in the specifications, wherein R is F, cyan, formyl or nitro. Through the mutual actions and influences of naphthyl, anthryl and dibenzothiophene sulfone units, the organic semiconductor material containing naphthalene, anthracene and dibenzothiophene sulfone units has superior thermal stability, hole transport performance and dissolving performance. The organic semiconductor material containing naphthalene, anthracene and dibenzothiophene sulfone units can be prepared by controlling the reaction conditions and the using amount of a reactant in the preparation method, and the method has the advantages of simple process, easiness in operating and controlling, reduction in the production cost and suitability for industrial production.

The invention discloses a high-efficiency and environmental-friendly gasoline desulphurization method. The method is characterized by including the following steps: (1) performing preliminary desulphurization: preparing an ionic liquid; (2) performing oxidation desulphurization: filling a reactor with oxygen, adding dibenzothiophene, stirring the mixture with a magnetic stirrer; (3) performing filtration to collect crystals; (4) preparing an active carbon adsorption plate: adding active carbon into a alkali liquor, passing ozone gas with stirring; and (5) sprinkling the filtrate prepared by step (3) to the prepared active carbon adsorption plate in a certain flow rate, performing liquid vacuum distillation, and recycling the desulfurized gasoline. The preliminary desulfurization rate reaches over 30%, and the additional product dibenzothiophene sulfone is obtained in desulphurization. The desulphurization method improves the adsorption capacity of the sulfide in the fuel oil, has high desulphurization efficiency and convenient operation, and is safe and without pollution.

The invention discloses an imine-connected dibenzothiophene sulfuryl covalent organic framework material and a preparation method and application thereof, and belongs to the field of material preparation. Benzo [1, 2-b: 3, 4-b ': 5, 6-b'] trithiophene-2, 5, 8-trialdehyde and 3, 7-diamino dibenzo [b, d] thiophene-5, 5-dioxide are added into an organic mixed solution, stirring is carried out, stirring is carried out, and the imine-connected dibenzothiophene sulfuryl covalent organic framework material is obtained. Freezing-unfreezing in a liquid nitrogen bath, circularly degassing for three times, sealing a tube in vacuum, and reacting, so as to finally obtain the imine-connected dibenzothiophene sulfuryl covalent organic framework material. The obtained covalent organic framework material has good photocatalytic overall water decomposition activity and has potential application value in the field of photocatalysis.

The invention discloses a naphthyl anthracene-substituted dibenzothiophene sulphone organic semiconductor material and a preparation method and application thereof. A general formula (I) of a molecular structure is shown in the specification, wherein in the general formula (I), R is alkyl having 1 to 6 carbon atoms. The naphthyl anthracene-substituted dibenzothiophene sulphone organic semiconductor material has high heat stability and cavity transmission performance under the mutual action and influence of a naphthyl anthracene unit and a dibenzothiophene sulphone unit. According to the preparation method, the naphthyl anthracene-substituted dibenzothiophene sulphone organic semiconductor material can be obtained only by controlling reaction condition and controlling the quantity of reactants, so that a process is simple and easy to operate and control and is suitable for industrial production, the production cost is reduced, and the yield of the product is high.

The invention relates to a delayed fluorescent compound by connecting an electron-donating group of dibenzoindole carbazole, an electron-withdrawing group of dibenzoindole carbazole, acridine, carbazole or triphenylamine, and dibenzothiophene sulfone or diphenyl sulfone. The delayed fluorescent compound provided by the invention is simple in preparation process and has good performance.

The invention belongs to the field of organic electroluminescent materials, and discloses a blue light organic electroluminescent material, a preparation method and applications thereof, wherein the structure formula of the material is defined in the instruction. According to the blue light organic electroluminescent material of the present invention, anthracene has high fluorescence quantum yield, and dibenzothiophene sulfone has a large plane rigid structure and is a good electron transmission unit, such that the carrier transmission balance is easily achieved, and the luminous efficiency is substantially improved.

The invention discloses a dibenzo fused dinaphthyl polymer photocatalyst for hydrogen production by photocatalytic decomposition of water and a preparation method thereof, the photocatalyst is prepared by a simple binary or ternary copolymerized Suzuki coupling reaction, and the construction unit of the photocatalyst comprises dibenzo fused dinaphthyl and dibenzothiophene sulfone. The dibenzo fused dinaphthyl monomer and the dibenzothiophene sulfuryl monomer for polymerization have the same or different polymerizable functional groups, and can be subjected to Suzuki coupling reaction. The polymer photocatalyst has the characteristics of high photocatalytic hydrogen production activity, high apparent quantum efficiency and continuous and adjustable structure and composition, is simple in preparation process, high in yield and stable in performance, can release hydrogen under sunlight, and can be used in the field of photocatalytic hydrogen production.

The invention discloses a synthetic method of a conjugated imide polymer containing dibenzothiophene sulfone and application of the conjugated imide polymer in photocatalytic carbon dioxide reduction, and belongs to the field of material preparation and photocatalytic organic synthesis. 3, 7-diaminodibenzo [b, d] thiophene 5, 5-dioxide and pyromellitic dianhydride are used as polymeric monomers, an isoquinoline/N-methyl pyrrolidone/mesitylene mixed system is used as a reaction solvent, freezing, unfreezing, vacuumizing and heat preservation treatment are carried out, the conjugated imide polymer containing dibenzothiophene sulfone is obtained, the preparation conditions are mild, the cost is low, and the conjugated imide polymer containing dibenzothiophene sulfone is suitable for industrial production. The preparation method is simple, the operation is convenient, and the obtained polymer has a relatively strong conjugated structure, excellent optical capturing capability and good stability, has the advantages of relatively high activity of photocatalytic reduction of carbon dioxide, strong selectivity and the like, and has relatively great application potential in the field of photocatalysis.