454 results about "Triphenylamine" patented technology

The invention relates to a preparation method and application of a porous material for preparing methanol through carbon dioxide adsorption and conversion. When the material is prepared, firstly, 4, 4 '4' '-(1, 3, 5-triazine-2, 4, 6-trimethylene) triphenylamine and 1, 2-acenaphthequinone are treated in a mixed solvent containing dioxane / acetonitrile / 6M acetic acid, and AT-COF is obtained; further synthesizing by adopting an impregnation method to obtain IrRu-COF; and finally, uniformly mixing the active gamma-aluminum oxide and the IrRu-COF material to form a carrier dispersion liquid, and then carrying out PEI loading, vacuum impregnation, washing and drying to obtain the PEI functionalized gamma-Al2O3 / COF composite catalyst. The technical closed loop from low-concentration CO2 capture to solar driven conversion is realized, the process flow is simple, and the energy consumption is low.

The invention provides a hole transport material, a preparation method thereof and a perovskite solar cell. The chemical structural formula of the hole transport material is # imgabs0 #, wherein each A is independently a heteroatom. A thiophene-methoxy triphenylamine group and a thiophene-methylthio triphenylamine group are introduced into an acridine phosphate side chain, and a series of novel hole transport materials are provided. The hole transport material has higher decomposition temperature, better thermal stability and higher hole mobility, thereby being beneficial to hole extraction and transport. The hole transport material has a deep HOMO energy level matched with perovskite, and can be used in a perovskite solar cell without doping any additive, so that the perovskite solar cell has higher photoelectric conversion efficiency, photovoltaic performance and stability, and the material has repeatability.

The invention discloses a dual-mechanism antibacterial photosensitizer as well as a preparation method and application thereof, and relates to the technical field of biomedical photoelectric functional materials. The invention relates to a triphenylamine derivative, which can realize fluorescence imaging of bacterial or fungal infection by utilizing fluorescence characteristics, can generate active oxygen under illumination to play a photodynamic therapy role, is suitable for preparing photodynamic therapy preparations and developing antibacterial materials, and can also be applied to the fields of environment and public health and tumor treatment. The problems that an existing photosensitizer is insufficient in broad spectrum, different in fungus drug resistance mechanism, limited in single treatment effect and the like can be effectively solved, and the photosensitizer has wide application prospects.

The invention relates to the field of oil storage microcapsules, and discloses a porous covalent organic framework oil storage microcapsule as well as a preparation method and application thereof. Under the catalysis of p-toluenesulfonic acid, 4, 4 ', 4' '-(1, 3, 5,-triazine-2, 4, 6-triyl) triphenylamine and trialdehyde phloroglucinol monomers are promoted to be subjected to condensation reaction in the repeated oscillation process, a product is purified to prepare a 4, 4', 4 ''-(1, 3, 5,-triazine-2, 4, 6-triyl) triphenylamine covalent organic framework, and by means of a periodic pore structure of the covalent organic framework, the covalent organic framework can be used for preparing the covalent organic framework. And the lubricating oil is adsorbed and stored and can be controllably separated out to provide lubrication during working, so that a high-performance self-lubricating effect can be realized. In addition, covalent organic frameworks are used as hard particles to be doped into a polymer matrix to modify the polymer matrix, so that the wear resistance of the polymer matrix can be greatly enhanced, and the performance of the self-lubricating bearing material is improved.

The invention provides a triphenylamine derivative as well as a preparation method and application thereof in killing gram-positive bacteria. The preparation method comprises the following steps: firstly, synthesizing an intermediate molecule 4-di-p-methoxyanilino benzaldehyde (s); the s respectively reacts with 3-pyridylacetonitrile and 4-pyridylacetonitrile to generate intermediate molecules a and b; the intermediate molecules a and b respectively react with methyl iodide to generate triphenylamine derivatives 1 and 2, and the intermediate molecules a and b respectively react with 9-bromomethyl anthracene to generate triphenylamine derivatives 3 and 4. The prepared triphenylamine derivative has a donor-acceptor structure and is a D-pi-A structure, the modified triphenylamine is used as a donor, a carbon-carbon double bond is used as a covalent bridge, and cyano and N positive ions have electron withdrawing property. As all the components contain positive ions, the components can be anchored on a bacterial membrane to kill bacteria; and the compound has a short alkyl chain and can be combined with gram-positive bacteria, so that the bacteria are killed.

The invention provides an aza-BODIPY dye molecule with near-infrared two-region absorption, 4-cyanophenyl is used as an electron acceptor for modification at 1, 7 sites, thiophene-triphenylamine is used as a strong electron donor for modification at 3, 5 sites, an aza-BODIPY dye with extremely strong intramolecular charge transfer is constructed, the absorption spectrum of the aza-BODIPY dye is extended to 1100 nm, and after the aza-BODIPY dye molecule forms an aggregation state, the absorption spectrum of the aza-BODIPY dye molecule has strong absorption spectrum. The aza-BODIPY dye molecule has the advantages that the absorption spectrum of the aza-BODIPY dye molecule is extended to 1250nm, the aza-BODIPY dye molecule has good absorption in an NIR-II region, and the nano-particles prepared by self-assembling the aza-BODIPY dye molecule and the amphiphilic polymer F127 show 46.2% of high photothermal conversion efficiency under the excitation of 1060nm laser, can be used for photoacoustic imaging and photothermal therapy, and can be used for preparing the nano-particles. The problems that tissue penetrability is insufficient and deep tumors cannot be diagnosed and treated in traditional tumor light diagnosis and treatment are solved.

The invention discloses a hole transport material, a preparation method thereof and a perovskite solar cell, and belongs to the technical field of photovoltaic solar materials. The molecular structural formula of the compound is shown as a formula (I) or a formula (II). According to the invention, a quinoxaline part is used as an electron acceptor for extended conjugate modification, a plurality of single donors such as triphenylamine electron donating groups, dihydroacenaphthene, binaphthyloxy and the like are introduced, the hole transport material with a multi-donor structure is constructed, and the hole transport material adjusts the distribution of HOMO-LUMO, increases charge transfer channels, improves the separation and transport capabilities of charges, and improves the hole transport efficiency. Therefore, the mobility of current carriers is improved. A tert-butyl unit is further introduced to the periphery of the triphenylamine group, the hydrophobic property of tert-butyl reduces the interface energy barrier between the hole transport layer and the perovskite precursor solution, directional growth and defect passivation of perovskite crystals are promoted, and the crystallization quality of the perovskite thin film and the device performance are improved.

The invention discloses a thiazole-linked covalent organic framework carbon nanomaterial compound as well as a preparation method and application thereof. The preparation method comprises the following steps: adding 4, 4 ', 4'-tetramethyl-4, 4 ', 4'-tetramethyl-4, 4 '-tetramethyl-4, 4'-tetramethyl-4, 4 '- The preparation method comprises the following steps: dissolving 4, 4 ', 4' '-(1, 3, 5-triazine-2, 4, 6-triyl) triphenylamine, 4, 4', 4 ''-(1, 3, 5-triazine-2, 4, 6-triyl) tribenzaldehyde, elemental sulfur and an amino-modified carbon nanomaterial in a solvent, reacting under the action of a catalyst, and purifying after the reaction to obtain the compound. The compound has high chemical stability, high crystallinity and excellent conductivity, and shows excellent rate capability and long cycle stability in a lithium ion battery. The invention provides a new thought for design and preparation of a high-performance energy storage electrode material.

The invention discloses an aggregation-induced emission near-infrared photothermal molecule as well as a preparation method and application of the aggregation-induced emission near-infrared photothermal molecule, and belongs to the technical field of biomedicine. The invention provides the preparation method of the aggregation-induced emission near-infrared photothermal molecule, the synthesis process is simple and efficient, and the obtained novel near-infrared photothermal molecule has better luminescence performance or photothermal performance of a near-infrared second region. Meanwhile, the near-infrared aggregation-induced emission protein nanoparticles provided by the invention are simple in preparation process and excellent in performance, and can effectively cross nasal mucosa and target an A beta plaque part, so that AD visualization and photo-thermal / hypoxia relief combined treatment are realized.

The invention discloses an application of 3, 4, 5-trifluorobromobenzene in an electric storage polymer coating, and the electric storage polymer coating is prepared from hyperbranched polyimide based on 3, 4, 5-trifluorophenyl through a spin coating method. The coating is high in solubility, good in processability and low in water absorption; the hyperbranched polyimide is formed by polymerizing a diamine compound containing 3, 4, 5-trifluorophenyl and polybasic acid anhydride, the hyperbranched polyimide has a triphenylamine structure and trifluorophenyl, tight packing of molecular chains can be improved under the combined action of torsional motion of the triphenylamine structure and the trifluorophenyl, and meanwhile, the electronegativity of F atoms is high, so that the polarity of molecules can be increased, and the hydrophobic performance can be improved.

The invention discloses preparation of a nitrogen-containing seven-membered fluorine-boron compound and application of the nitrogen-containing seven-membered fluorine-boron compound to a fluorescent anti-counterfeiting film, the structure of the compound is as follows: # imgabs0, the dye takes 2, 3, 3-trimethylindole and dibromo-2-pyrrolecarboxaldehyde as raw materials, under the action of acetic acid, piperidine and methylbenzene, a Knoevenagel condensation reaction is carried out, and the dibromo seven-membered fluorine-boron fluorescent dye is generated. The dibromo seven-membered fluorine boron fluorescent dye respectively reacts with phenylboronic acid, 4-cyanophenylboronic acid, p-methoxyphenylboronic acid and triphenylamine phenylboronic acid to obtain a final compound. The compound can act with acrylic resin to form a film on a thin film, and can be colored under natural light, and clear fluorescence can be seen under an ultraviolet lamp (365nm). The fluorescent dye is simple, easy to obtain, low in manufacturing cost, high in film forming speed with acrylic resin or a polyvinyl alcohol solution on a thin film, high in anti-counterfeiting coefficient, large in counterfeiting difficulty and huge in potential in the aspects of fluorescent anti-counterfeiting packaging films, OLDE and the like.

The invention relates to a compound containing a thiophene group, a device and equipment. In the structural formula of the compound, R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 are independently selected from hydrogen, halogen, cyano, trifluoromethyl, triphenylamine and derivatives thereof, methoxyl, aryl and derivatives thereof, cyanobiphenyl and naphthyl; the compound can be used for preparing a photovoltaic device and photovoltaic equipment and is used for improving the efficiency and stability of the photovoltaic device.

The invention discloses a preparation method and application of a micron-sized quantum dot light-emitting diode array device, and the method comprises the steps: sequentially forming a hole injection layer, a hole transmission layer, a patterned insulating layer, a quantum dot light-emitting layer, an electron transmission layer and a top electrode on an indium tin oxide substrate, and preparing the patterned insulating layer through photoresist; quantum dots are spin-coated to form a process route of an array light-emitting layer, electron leakage generated at pixel gaps is inhibited through photoresist, high resolution is achieved, and meanwhile the performance of a recorded Micro-QLED array device is achieved; a novel cross-linked hole transport layer PF8Cz-X is adopted to verify and solve the problem that a photoacid generator component in the photoresist generates strong oxidizing photoacid, and a triphenylamine structure hole transport layer in the QLED device is damaged by a reaction in a free radical coordination binding mode; and physical dissolution of a developing solution in a micro-nano processing technology is avoided by designing a thermal crosslinking group, and a photoetching system which is compatible with a solution processing technology and lossless to the Micro-QLED array device is constructed.

The invention discloses a novel fluorescent probe based on triphenylamine and a preparation method and application thereof, the preparation method comprises the following steps: S1, dissolving 4-methoxyaniline and 1-bromo-4-iodobenzene in a solvent A, and then adding copper iodide, 1, 10-phenanthroline and potassium tert-butoxide for reaction to obtain a compound 1; s2, dissolving the compound 1 obtained in the step S1, (5-formylthiophene-2-yl) boric acid and anhydrous potassium carbonate in a solvent B, and then adding PdCl2 (dppf) for reaction to obtain a compound 2; and S3, dissolving the compound 2 obtained in S2 and malononitrile in a solvent C, and then adding triethylamine for reaction to obtain the TPA-CN probe. The TPA-CN probe is used for monitoring exogenous and endogenous SO2 and viscosity change in living cells. According to the invention, dual imaging of SO2 and viscosity in a biological system and a food sample can be realized.

The invention provides an imidazo [1, 2-alpha] pyridine stimuli-responsive molecule with a D-A twisted structure as well as a preparation method and application of the imidazo [1, 2-alpha] pyridine stimuli-responsive molecule, belongs to the technical field of intelligent materials, and is used for solving the technical problem that intelligent materials for developing stimuli-responsive molecules for data encryption and information anti-counterfeiting are insufficient. The preparation method of the compounds N1 and N3 comprises the following steps: 2-aminopyridine and 2, 4 '-dibromoacetophenone are subjected to an amphiphilic reaction to obtain a compound a; the compound a and POCl3 are subjected to a Vilsmeier-Haack reaction, and a compound b is obtained; carrying out Suzuki coupling reaction on the compound a or the compound b and triphenylamine boric acid to obtain a compound N1 or N2; the compound N2 and malononitrile are subjected to a Knovenagel condensation reaction, and a compound N3 is obtained. The compound prepared in the invention has good fluorescence emission capability in a solution and a solid state and a grinding solvent acid / alkali stimulated fluorescence discoloration behavior, and can realize good data encryption and information anti-counterfeiting.

The invention belongs to the technical field of luminescence and display, and particularly relates to a D-A type green light TADF material and application thereof in OLEDs. The luminescent material comprises an oxygen bridge triphenylboron acceptor unit and oxygen bridge triphenylamine which are used as donor units, and a green light TADF material is constructed through simple coupling. The rigid large plane structure of the material limits rotation of a benzene ring, vibration relaxation of a condensed ring structure is reduced, and the photoluminescence efficiency as high as 90% is obtained. Research results show that the maximum emission peak of the device is 518 nm and the maximum external quantum efficiency (EQE) of the device is 37.8% under different doping concentrations when the OLEDs are processed by the solution, especially under the doping concentration of 5-100%, the electrogenerated emission peak change of the device is small, the EQE of 30% or above is kept, the excellent concentration quenching inhibition performance is shown, and the application prospect is attractive.

The invention discloses an aluminum ion battery positive pole piece, an aluminum ion battery and a preparation method, and belongs to the field of batteries. The positive pole piece of the aluminum ion battery comprises an active substance and a binder, the binder is a mixture of 3, 4-ethylenedioxythiophene: polystyrene sulfonate and a functional agent; the active substance is one of graphite, polytriphenylamine, polydiphenylamine, polythiophene, polypyrrole, polyaniline and graphene; the functional agent is one of tannic acid, polyethylene oxide, sorbitol, polyethyleneimine, glycerol and xylitol. Anions of polystyrolsulfon acid and positive ions of 3, 4-ethylenedioxythiophene molecules form positive and negative electron pairs, so that the adhesive has conductivity; the binder enables the active substances to be mutually connected to form conductive chains through intermolecular acting force, and the conductive chains are mutually contacted to form a conductive network. The positive pole piece adopting the binder has good conductivity, temperature resistance and cohesiveness, and does not react with electrolyte, so that the performance of the aluminum ion battery is improved.

The invention belongs to the technical field of antitumor drugs, and particularly discloses a preparation method and application of a compound for near-infrared fluorescence imaging and photothermal-photodynamic synergistic treatment. The compound for near-infrared fluorescence imaging and photothermal-photodynamic synergistic treatment is shown in the following structural formula: # imgabs0, the molecular skeleton of the compound contains a triphenylamine unit and an N, N-dimethylaniline fragment, intramolecular rotation limitation and intramolecular vibration limitation can be generated, and obvious aggregation-induced emission (AIE) performance is shown. The function-integrated phototherapy agent has high active oxygen generation efficiency, photothermal conversion efficiency and near-infrared fluorescence quantum yield, and is beneficial to obtaining ideal photothermal-photodynamic therapy effect for deep tumors. The phototherapy agent is novel in structure, the preparation method is easy in raw material obtaining, the synthesis condition is mild, the preparation method is simple, purification is convenient and fast, implementation is easy, and the phototherapy agent has great application prospects.

The invention belongs to the technical field of organic semiconductor photoelectricity, and discloses a triphenylamine dicarboxyl-containing self-assembly hole transport material, a synthesis method and application of the triphenylamine dicarboxyl-containing self-assembly hole transport material as a photoelectric device. The triphenylamine dicarboxyl group is used as an anchoring group, and a bridging unit and a hole transport unit are introduced into a molecular structure through a self-assembly monomolecular layer strategy, so that the hole transport material containing the triphenylamine dicarboxyl group is obtained; the technical problems of poor stability, poor device performance and the like of small organic molecules with anchoring groups in the prior art can be solved. The triphenylamine dicarboxyl group is introduced into the hole transport material, so that the efficiency of a photoelectric device can be improved, the service life of the photoelectric device can be prolonged, and the hole transport material comprises a perovskite solar cell, a perovskite light-emitting diode, a quantum dot light-emitting diode and the like.

The invention discloses a bifunctional fluorescent molecular probe, a preparation method thereof and application of the bifunctional fluorescent molecular probe in polarity detection of ONOO <-> and lipid droplets, and belongs to the technical field of polarity detection of ONOO <-> and lipid droplets. The problems that a fluorescent probe is only limited to detection of a single analyte, and targeted monitoring of lipid droplets in cells and simultaneous detection of endogenous ONOO <-> in the cells cannot be achieved are solved. According to the invention, a dual-response fluorescent molecular probe PTQ based on a triphenylamine group is prepared, and the PTQ shows dual response to a polar environment and dynamic change of ONOO <->. Test results show that the fluorescent probe shows high sensitivity (1.92 nM), stable fluorescence signals and high quantum yield (57.76%) in a low-polarity medium, also has excellent ONOO <-> selectivity, low detection limit (4.97 nM), low toxicity and excellent biological imaging ability, and realizes targeted monitoring of lipid droplets and detection of endogenous ONOO <-> in cells.

The invention belongs to the technical field of solar cells, and particularly relates to a triphenylamine-containing conjugated polymer hole transport layer material and a preparation method thereof. The preparation method of the triphenylamine conjugated polymer comprises the following steps: reacting aniline with bromobenzene under the action of a catalyst to generate a compound 1; reacting the compound 1 with NBS (N-bromosuccinimide), and performing bromination reaction to obtain a compound 2; reacting the compound 2 under the action of bis-pinacol diboron, potassium acetate and a catalyst to obtain a compound 3; the method comprises the following steps: dissolving a monomer 1, a monomer 2 and a catalyst in an organic solvent, and carrying out polymerization reaction under the protection of nitrogen to obtain the triphenylamine conjugated polymer. The synthetic route is simple, the yield is high, conditions are easy to realize, and the hole transport layer material prepared from the conjugated polymer of triphenylamine is high in transport efficiency and can be popularized in a large range.

The invention belongs to the technical field of photosensitizers, and particularly relates to design, synthesis and sterilization application of an aggregation-induced emission probe based on a biological orthogonal reaction metabolism anchoring viable bacterium strategy. The aggregation-induced emission compound (aggregation-induced emission probe) is of a typical D-pi-A structure, takes a triphenylamine structural unit as an electron donor spacer group in a molecular system to prevent pi-pi accumulation, and takes a thiophene ring and a carbon-carbon double bond as electron donors and a pi bridge and a nitro unit as electron acceptors to synthesize the aggregation-induced emission probe. And finally, an important synthetic raw material D-type amino acid (D-Ala) of a bacterial cell wall is also connected. The prepared aggregation-induced emission compound is long in fluorescence lifetime and high in fluorescence intensity, a large amount of active oxygen can be generated after illumination to effectively kill viable bacteria, the active oxygen can be absorbed and utilized by bacteria through metabolism, and differential detection of the viable bacteria and dead bacteria is achieved.

The invention relates to the field of novel clean energy, in particular to an organic hole transport material, a preparation method and application in an inverted perovskite solar cell. According to the invention, triphenylamine with good hole mobility is taken as a parent nucleus, so that the hole transport capability of molecules is ensured; molecular interface performance regulation and control are carried out through a conjugate expansion means, polymerization sites and alkyl chains are increased to regulate the solubility and film-forming performance of a solution, and energy loss at an interface is reduced; phosphoric acid groups or cyano carboxyl groups connected with different carbon chain lengths are used as anchoring groups, and self-assembly of the hole transport material on an electrode substrate is achieved. Compared with an organic hole transport layer of an existing inverted perovskite cell, the hole transport layer has the advantages of being good in stability, easy to process, free of dopants, low in cost and the like, and meanwhile an efficient and stable perovskite cell device can be obtained due to the excellent charge selection capacity of the hole transport layer.

The invention relates to an aza-polycyclic aromatic hydrocarbon organic ligand and a preparation method thereof, an aza-polycyclic aromatic hydrocarbon assembled molecular cage and a preparation method and application thereof, the organic ligand takes dimethyl methylene bridged triphenylamine as a core, a benzene ring is modified by an R group, and the molecular cage is prepared from the organic ligand, the organic ligand and the aza-polycyclic aromatic hydrocarbon. A metal organic caged compound obtained by a coordination reaction with a metal complex; the molecular cage is of a truncated tetrahedral structure of twelve metals and eight ligands; each organic ligand is provided with three equal side arms which are wrapped and stacked together in a curved surface manner to form a pseudo six-section ligand; the organic ligands and the metal nodes are self-assembled to form a molecular cage with a hydrophobic cavity for recognizing guest molecules in the center. Compared with the prior art, the organic ligand has flexibility and is combined with metal to construct a novel water-soluble metal organic double-wall knotted flexible molecular cage, a size-adjustable cavity exists in the molecular cage, and selective recognition of nucleotide negative electricity biomolecules in a water phase is achieved.

The invention discloses a triphenylamine-based conjugated microporous polymer as well as a preparation method and application thereof, and belongs to the technical field of photocatalytic semiconductor materials. The triphenylamine-based conjugated microporous polymer is prepared by taking triphenylamine biphenyl as a skeleton and an acetylenic bond as a connecting unit, respectively introducing pyrene, naphthalene, biphenyl or benzene, and synthesizing through a Sonogashira coupling reaction. Test results of the applicant show that the triphenylamine-based conjugated microporous polymer has high hydrogen evolution rate and good chemical stability and thermal stability during hydrogen production by photocatalytic decomposition of water.

The invention provides an electrolyte and a lithium ion battery, the electrolyte comprises an organic solvent, a lithium salt electrolyte and an additive, the additive comprises a nitrile compound containing a benzene ring structure and a carbon-carbon double bond, and a nitrile compound containing triphenylamine and a sulfonyl fluoride group; the electrolyte comprises the following components in percentage by weight: 0.3%-1.2% of nitrile compounds containing benzene ring structures and carbon-carbon double bonds, and 0.3%-1.2% of nitrile compounds containing triphenylamine and sulfonyl fluoride groups. Based on the electrolyte provided by the invention, the problems of poor high-temperature cycle performance and high-temperature storage performance of the lithium ion battery in the prior art are solved.

The invention provides a bridged triphenylamine-derived AIE type antibacterial photosensitizer, a preparation method and antibacterial application thereof, the bridged triphenylamine-derived AIE type antibacterial photosensitizer has the following structure: # imgabs0 is subjected to a cyclization reaction to form a bridged structure to limit bond rotation as a novel molecular design, and the photodynamic antibacterial effect of the AIE photosensitizer (PSs) can be effectively improved; and an AIE photosensitizer is combined with a donor-pi-receptor (D-pi-A) structure, so that a smaller singlet-triplet energy level difference (delta EST) is realized, and an intersystem crossing process is promoted. The mutual combination effect of the PSs and bacteria can be influenced by regulating and controlling the charge number of the PSs, so that effective bacteria recognition and selective antibacterial performance are realized. Experiments show that the AIE antibacterial photosensitizer based on bridged triphenylamine has a specific elimination effect on gram-positive bacteria; and the photodynamic antibacterial agent has a good photodynamic antibacterial effect on staphylococcus aureus and methicillin-resistant staphylococcus aureus.

The invention relates to the technical field of fluorescence imaging, in particular to a derivative of triphenylamine and thiazole salt, a fluorescent probe as well as a preparation method and application of the fluorescent probe. The fluorescent probe disclosed by the invention is a derivative of triphenylamine and thiazole salt. The structure of the fluorescent probe contains a positive charge, and the internal environment of the mitochondria is a negative charge. When the fluorescent probe provided by the invention is used in cell imaging, the fluorescent probe can penetrate through a cell membrane to enter living cells and is adsorbed on mitochondria under the attraction of negative charges in the mitochondria. In the state, after the fluorescent probe is excited to generate fluorescence reaction based on a specific light field, fluorescence imaging of the cells can be realized, so that the internal change process of mitochondria can be observed through real-time fluorescence imaging. The fluorescent probe disclosed by the invention has relatively small cytotoxicity and relatively good photobleaching resistance, can specifically target mitochondria and can realize long-time fluorescence imaging, so that the fluorescent probe disclosed by the invention has relatively good advantages in cell imaging.

The invention discloses a preparation method of a pyrenyl covalent organic framework material and application of the pyrenyl covalent organic framework material in photocatalytic hydrogen production reaction, and belongs to the field of heterogeneous catalysis. The novel pyrenyl COFs photocatalyst is synthesized by regulating and controlling the quantity of triphenylamine and integrating triphenylamine monomers with different contents into a pyrenyl covalent organic framework (COF) skeleton. The preparation method is simple to operate, mild in reaction condition, short in reaction time and high in repeatability, the obtained pyrenyl COFs have good light capture capacity and photon-generated carrier separation characteristic, electron-hole recombination can be effectively reduced, the excited state service life is prolonged, the reaction efficiency of photocatalytic hydrogen production is improved, and potential application prospects are achieved.

The invention relates to the field of electrochromic materials, in particular to a blue and second near-infrared (NIR-II) transmission electrochromic high polymer material based on propene dioxythiophene (ProDOT) and a triphenylamine derivative, and particularly relates to an electrochromic high polymer material based on propene dioxythiophene (ProDOT) and a triphenylamine derivative. The method is suitable for multiple fields of display screens, building glass, coating invisible materials and the like. The invention relates to an electrochromic material based on propenyldioxythiophene (ProDOT) and a triphenylamine derivative, which has a structure shown in the following I-III: # imgabs0, and an electrochromic polymer with red oxygen electrochemical and electrochromic characteristics is prepared by carrying out electrochemical polymerization on three monomers (ProDOT-TPA, ProDOT-TPPA and ProDOT-2TPA). According to the present invention, the electrochemical research results show that the ProDOT-TPA has low initial oxidation potential (0.59 V), such that the high-quality polymer can be easily obtained; the optimized polymer [P (ProDOT-TPA)] shows the optical contrast ratio of 14.38% at the position of 400 nm and the optical contrast ratio of 49.55% at the position of 1100 nm in an electrochromic device, and has remarkable electrochromic performance.