7results about How to "Simple molecular structure" patented technology

This invention discloses a method and system for treating landfill leachate stock, belonging to the field of wastewater treatment technology. The method includes the following steps: first, adding an appropriate amount of acid to the landfill leachate and stirring until homogeneous to obtain an acidic solution with a pH value below 1.5; then, adding silicate cement to the acidic solution in one go or in small amounts multiple times, mixing thoroughly, and allowing it to settle until solids precipitate before discharging the liquid to the external environment or transporting it to the next process. The total amount of silicate cement added is 6%-10% of the mass of the acidic solution. This method can simultaneously treat TP, TN, and NH3 in landfill leachate. 3 Removal of -N and COD, TP, TN, NH 3 The removal rate of nitrogen (-N) can reach over 75%, and the COD removal rate can reach over 30%. The levels of recalcitrant organic macromolecules and benzene ring compounds are significantly reduced. The organic matter in the water sample is reduced, and the molecular structures are simpler and smaller, which is beneficial for biological decomposition and utilization. The system has a simple structure, is easy to use, and significantly reduces water treatment costs.

This invention discloses a class of MR-TADF blue luminescent materials and their application in near-infrared excimer organic light-emitting devices (OLEDs). A class of blue luminescent materials with MR-TADF properties was obtained through the Suzuki coupling reaction of 1-quinolinoacridididine dione units and 7-dioxaborane-naphthyl anthracene units. Using these materials as the acceptor component of the excimer and m-MTDATA blue fluorescent material as the donor component, the active luminescent layer was prepared by mixing the two materials in different proportions via a solution method, achieving highly efficient near-infrared excimer luminescence. The results show that the solution-processed OLEDs exhibit high near-infrared luminescence efficiency, with the electroluminescence peak located in the 706–726 nm range and the corresponding maximum external quantum efficiency (EQE) in the 0.35–0.17% region, demonstrating promising application prospects.

The invention relates to a novel room-temperature phosphorescent illuminant with mechanochromism characteristics and a preparation method of the room-temperature phosphorescent illuminant. The reaction structural formula is as shown in Figure 1. Carbazole and 1, 4-dibromobutane are used as raw materials, acetone is used as a solvent, potassium hydroxide is added, and stirring reaction is performed; performing extraction, drying, rotary evaporation, separation and purification to obtain an intermediate; mixing and reacting the obtained intermediate, cyano diphenol or cyano naphthol, acetone, potassium iodide and potassium carbonate; 4 '-(4-(9H-carbazole-9-yl) butoxy)-[1, 1'-biphenyl]-4-carbonitrile or 6-(4-(9H-carbazole-9-yl) butoxy)-2-naphthyl nitrile with mechanochromic characteristic and room temperature phosphorescence emission is obtained through extraction, drying, rotary evaporation, separation and purification. The molecular structure of the material does not contain metal elements, does not contain heavy atoms such as bromine and iodine, has no distorted D-A conformation, and has high potential application value in the fields of anti-counterfeiting, information encryption, organic light-emitting diodes, biosensing imaging and the like.

The present invention belongs to the field of light emitting and display technology, and specifically discloses a class of anti-Kasha rule narrow-band blue-violet light TADF materials and their applications in OLEDs. This type of luminescent material is composed of oxygen-bridged triphenylboron-dicarbazole phenylene-spiroacridine fluorene, and has two radiation transition luminescence behaviors (S1→S0 and S2→S0), which can overcome the intrinsic contradiction of traditional narrow-band blue-violet light TADF materials. The simple three-layer OLED prepared by solution processing realizes blue-violet emission at 410nm, with a half-peak width of only 33nm, and the corresponding color coordinates are (0.164, 0.045), and its maximum external quantum efficiency is as high as 9.61%. The present invention provides a new way to solve the problem that traditional D-A type TADF materials are difficult to achieve narrow-band and short-wavelength emission in a coordinated manner.

The present invention discloses an organic light-emitting diode material and a preparation method and application thereof. The organic light-emitting diode material has a chemical structure shown in formula V: #imgabs0# wherein: X is S, O, C(CH3)2 or SO, R1 is a triphenylamine group or a carbazole derivative group, and R2 is a methyl group; the preparation method comprises step d or step c~d or step b~c~d or step a~b~c~d in the synthesis route: #imgabs1# The organic light-emitting diode material provided by the present invention has a suitable triplet energy level, can match the frontier orbital energy level of the adjacent material constituting the existing organic light-emitting diode, excites blue-green fluorescence in a solid or liquid solution and improves the electroluminescence efficiency of the organic light-emitting diode, and at the same time, has excellent thermal stability, and can be used as a hole transport material or skeleton filling material or luminescent material of the organic light-emitting diode.

The present disclosure relates to an oil filtering material, a preparation method and application thereof, and the raw materials of the oil filtering material include, in terms of mass percentage, 30-60% of water-absorbing material, 30-60% of thermoplastic elastomer material, 5-10% of compatibilizer and 1-5% of inorganic filler. The preparation method includes: mixing a certain proportion of the water-absorbing material, the thermoplastic elastomer material, the compatibilizer and the inorganic filler to obtain a mixture; plasticizing the mixture to obtain a melt; vulcanizing the melt to obtain a vulcanizate; crushing the vulcanizate to obtain a water-absorbing swelling material; uniformly laying the water-absorbing swelling material on a porous material and performing hot-pressing compounding to obtain the oil filtering material. The oil filtering material, the preparation method and application thereof have low cost, simple preparation process, and can improve the filtering effect of oil, especially vehicle ethanol gasoline, and prolong the service life of the oil filtering material.

The application discloses a near-infrared fluorescent probe for detecting viscosity of liquid food, and a preparation method and application thereof. The fluorescent probe is 2-(2-6-(diethylamino)-1,2-dihydrocyclopenta[b]chromen-3-yl)vinyl)-3-ethyl-1,1-dimethyl-1H-benzo[e]indol-3-ium salt. The fluorescent probe contains two kinds of rotor elements, i.e. a vinyl bond and a single bond, which is beneficial to sensitive response of the probe to viscosity change. The probe has a long emission wavelength in a high-viscosity solvent, which can reach 787 nm, and has strong fluorescence penetration, low background interference and high signal-to-noise ratio. In addition, the probe has good selectivity for the high-viscosity solvent and high sensitivity, and therefore, the probe can be applied to detection of viscosity of liquid food.