128 results about "Light response" patented technology

This invention discloses an atmospheric oxidizing indicator detection device, relating to the field of atmospheric detection technology. The proposed solution includes a housing, and further comprises: a condenser tube installed within the housing for dehumidifying incoming air; a splitter, the inlet of which is connected to the outlet of the condenser tube, for splitting the dehumidified air sample into a first branch and a second branch; a photodetector unit, comprising a photoreaction tube, a first mixing tank, and a first detector connected in sequence, the inlet of the photoreaction tube being connected to the outlet of the first branch of the splitter; and a catalytic detection unit, comprising a catalytic reaction tube, a second mixing tank, and a second detector connected in sequence, the inlet of the catalytic reaction tube being connected to the outlet of the second branch of the splitter. This overcomes the inherent time difference problem of sequential measurements using a single detector.

This invention belongs to the field of functional polymer composite materials technology, and more specifically relates to a titanium oxide cluster composite fiber membrane with broad-spectrum photoresponse, its preparation method, and its applications. The preparation method includes: using 3-fluorocatechol and titanate as reactants, a solvothermal reaction is carried out under an inert atmosphere to obtain trifluorocatechol-modified titanium oxide cluster crystals; then, these crystals are dissolved with thermoplastic polyurethane particles in an organic solvent to prepare a composite spinning solution, which is then electrospun and dried to obtain the composite fiber membrane. In this fiber membrane, the titanium oxide clusters are uniformly dispersed at the nanoscale, forming a three-dimensional porous network structure with a diameter of 100-1000 nm, exhibiting broad-spectrum strong absorption (300-1000 nm), superhydrophobicity, and excellent photothermal properties. This invention effectively solves the problem of inorganic nanoclusters agglomeration in organic matrices through surface modification, achieving synergistic antibacterial effects through photothermal and photocatalytic processes, and has broad application prospects in medical protection, intelligent thermal management textiles, and environmental purification.

The application provides a solar cell, a battery assembly and a photovoltaic system. The solar cell comprises: a leakage region between a first region and a second region; the leakage region comprises a first sub-region and a second sub-region; a first doped layer is located in the first region, and a second doped layer is located in the second region; a first leakage doped layer is located in the first sub-region, and a second leakage doped layer is located in the second sub-region; the first leakage doped layer is connected with the first doped layer, and the second leakage doped layer is connected with the second doped layer; the first leakage doped layer is not in contact with a preset region of a side surface of the first leakage doped layer adjacent to a base of the second sub-region; and the second leakage doped layer is not conductive with the first leakage doped layer when the light intensity is less than a set value. The application can improve the weak light response of the solar cell assembly.

The invention relates to the technical field of biochemical engineering, in particular to a method for efficiently converting 7-dehydrocholesterol into vitamin D3. The method comprises two steps of photoreaction and thermal isomerization. Wherein in the photoreaction stage, the reaction selectivity and the yield are remarkably improved by adopting 285 nm ultraviolet irradiation and controlling the energy density within the range of 5-8 W / mL, and the photoreaction yield can reach 60%-70%; a high-temperature condition of 70 + / -2 DEG C is adopted in the thermal isomerization stage, the reaction is carried out in a short time, the reaction period is greatly shortened, the yield is improved, and the thermal isomerization yield can reach 80%-90%; the total yield is superior to that of the traditional process. The method has the advantages of high reaction selectivity, few impurities, high yield, short period and the like, is suitable for industrial production of vitamin D3, and has a wide application prospect.

The utility model provides live fresh storehouse circulation ecological system, and the water after biochemical module processing flows through post sand filter tank, disinfection module and light reaction module in proper order. Post sand filter tank is responsible for filtering off suspended particles and other impurities in water, further improves the purity of water quality, disinfection module carries out sterilization treatment to water body, effectively kills the residual harmful microorganism, ensures the safety of water quality, and water body enters light reaction module, in light reaction module, algae carries out photosynthesis under the light condition, utilizes carbon dioxide and nutrient salt in water to grow and breed, and the seawater after this series of processing is transported to the temporary breeding system, provides a clean, healthy and rich algal bait growth environment for live fresh, thereby effectively solve traditional temporary breeding system in water quality is easy to be contaminated, algal bait supply is not stable and disinfection maintenance is not convenient and so on problem, greatly improves the survival rate and growth efficiency of temporary breeding organism.

The application relates to a manufacturing method of a non-noble transition metal element doped photocatalytic material and application thereof. The manufacturing method of the photocatalytic material comprises the following steps: 1) providing a photocatalytic material precursor covered by a liquid film, wherein the liquid comprises a non-noble transition metal element in the periodic table as a doping element; 2) irradiating the photocatalytic material precursor with rays with a wavelength of 200 nm or below to obtain the photocatalytic material. According to the application, the manufacturing method is simple, and the photocatalytic material can significantly improve the light response value of long-wavelength light.

The application discloses a kind of Bi 12 O 17 Cl2 / ZnCdS heterojunction photocatalyst and its preparation method and application, belong to photocatalyst field, solve the problem of CdS-based photocatalyst degradation efficiency limited.For preparation method:Bi (NO3) 3·5H2O, KCl and NH4Cl are dissolved in ethylene glycol solution, adjust pH to 8-10, carry out hydrothermal reaction, product calcination, Bi 12 O 17 Cl2 precursor is obtained;Bi 12 O 17 Cl2 precursor is dispersed in deionized water, zinc acetate dihydrate, cadmium acetate dihydrate and Na2S·9H2O solution are sequentially added, so that it is fully contacted with Bi 12 O 17 Cl2, adjust pH to 9-11, carry out hydrothermal reaction.The application not only overcomes the problems of insufficient light response, serious photo-corrosion and carrier recombination in the existing heterojunction system, but also shows unique advantages in stability and degradation efficiency.

The application discloses C4 corn ZmClpP6 protein and application of related biological materials thereof in regulation of high light response capability of plants. ZmClpP6 It is found that: ZmClpP6 The knockout can reduce chlorophyll content, total carotenoid content, catalase activity and copper-zinc SOD enzyme activity of corn under high light conditions, and makes corn leaves appear yellowing phenotype. It is indicated that ZmClpP6 can regulate high light response capability of plants. The application clones ZmClpP6 the gene in corn for the first time and analyzes the biological function thereof, and has important significance for cultivation of high light efficiency plants.

The application provides a PEDOT:PSS / IGZO optoelectronic neurosynaptic memristor with nociceptor function and a preparation method and application thereof. The memristor comprises a bottom electrode, a resistance change function layer and a top electrode arranged in sequence, wherein the resistance change function layer is a double-layer heterojunction structure composed of PEDOT:PSS and an IGZO thin film, the IGZO is indium gallium zinc oxide, and the IGZO thin film is arranged on the bottom electrode. The memristor has the characteristics of simulating a biological neurosynapse and nociceptor function, and can balance the electrical control precision and the light response capability.

The application discloses a kind of nanofiber jet printing device and jet printing method, jet printing device includes: including injection pump, injector, oscillation component, driver, first luer joint, second luer joint and needle, wherein, the injection pump is used to drive the injector, the oscillation component includes sequentially connected upper sleeve, piezoelectric ceramic and lower sleeve, the upper sleeve is connected with the liquid outlet end by first luer joint, the lower sleeve is connected with the needle by second luer joint, the driver is electrically connected with the piezoelectric ceramic, so that piezoelectric ceramic generates the oscillation required.The application effectively avoids the agglomeration of nanomaterials before jet printing and the re-agglomeration during jet printing, thereby helping to obtain an active site distribution uniform, light response performance stable, device repeatability high fiber-based sensitive layer, solves the technical bottleneck of performance decline caused by nanomaterial agglomeration in the prior art.

The present application relates to the technical field of porous polymer materials, and particularly relates to a covalent organic framework material with different flatness, a preparation method and application thereof. The method comprises the following steps: S10, preparing a first monomer through a coupling reaction; S20, mixing the first monomer, a second monomer, a catalyst and a solvent to perform a condensation reaction, so as to obtain the covalent organic framework material, wherein the condensation reaction is performed at a temperature of 60-180 DEG C, the first monomer comprises one or more of formulae 1-8, and the covalent organic framework material is purified; and S30, performing acidification or methylation treatment on the purified covalent organic framework material. Thus, the covalent organic framework material with different flatness prepared by the present application has a high conjugation degree, effectively enhances light absorption capacity, promotes separation and transfer of photo-generated carriers, and exhibits good light response characteristics and photocatalytic performance.

The application belongs to the technical field of functional crystal materials, and more particularly relates to a high-stability two-dimensional Dion-Jacobson type non-lead polar hybrid perovskite crystal and a preparation method and application thereof. The high-stability two-dimensional Dion-Jacobson type non-lead polar hybrid perovskite crystal has a chemical formula of (4AMPY)2AgBiBr8, belongs to a monoclinic system, and has a space group of P21. The crystal is prepared into an X-ray detector, which can realize efficient and stable X-ray detection under zero bias voltage and high bias voltage. The single crystal is irradiated by different X-ray irradiation doses, and the X-ray response performance thereof is tested. When the crystal is irradiated by different X-ray irradiation doses, the crystal exhibits obvious light response, and the result shows that the material has potential application value as an X-ray detection material.

The present disclosure provides a two-dimensional homojunction photodiode, an optical logic computing device, a method and a system. The two-dimensional homojunction photodiode comprises: a substrate for supporting a layer; a device channel layer disposed on the substrate, the device channel layer comprising a two-dimensional homojunction of an intrinsic two-dimensional material layer and a strained two-dimensional material layer extending along a direction parallel to the surface of the substrate; wherein the device channel layer is configured to adjust at least one of the strain direction and the strain size to regulate the light response characteristics of the two-dimensional homojunction photodiode, and to adjust the length ratio of the strained two-dimensional material layer in the device channel layer to build an asymmetric device channel layer to regulate the polarization sensitivity characteristics of the photodiode. A source and a drain are respectively disposed at both ends of the device channel layer.

To improve the reliability of the flowing water sterilization system. [Solution] The flow water sterilization device 10 comprises a flow path housing 12 having an internal space 20 through which water to be treated flows, a reactor 14 disposed in the internal space 20 and having a treatment chamber 42 for containing the water to be treated, and a light source unit 16 disposed in the internal space 20 and irradiating the water to be treated in the treatment chamber 42 with ultraviolet light 18. The reactor 14 has a facing portion 50 that faces the light source unit 16 in a predetermined axial direction. The facing portion 50 comprises a main opening 52 that extends axially between the treatment chamber 42 and the light source unit 16 and allows ultraviolet light 18 to pass through, and an engaging portion 54 that engages with the light source unit 16 and restricts the displacement of the light source unit 16 in a radial direction perpendicular to the axial direction.

The application provides a polymer carbon nitride@Hittorf red phosphorus heterostructure and application thereof in preparation of a medicine for targeted treatment of renal clear cell carcinoma, and belongs to the technical field of nano medicines. The application designs a near-infrared light response Hittorf red phosphorus (HP) modified polymer carbon nitride heterostructure (PCN@HP) based on a simple chemical vapor deposition (CVD) method. Experimental research finds that the HP nanorods vertically grown on the PCN exhibit wide and strong light absorption in the near-infrared range. In-vivo and in-vitro experiments prove that under near-infrared light irradiation, when the concentration of the suspension is 100 μg / mL, the tumor inhibition rate reaches 100%. Notably, the composite has no damage to normal tissues and cells, but it has obvious targeted inhibition effect on deep ccRCC cells in the body. In addition, the composite material has good biocompatibility and spontaneous light effect, and can be completely metabolized in the body within 48 hours, and is a kind of nanoparticle with imaging and PDT / PTT synergistic treatment, and can be used for efficient tumor nano treatment.

The application discloses a preparation method and application of a hollow conjugated microporous polymer. It belongs to the field of photocatalytic organic synthesis and comprises the following steps: step S1, dispersing SiO2 nanosphere templates in a triethylamine solvent; step S2, adding 4,7-dibromo-2,1,3-benzothiadiazole, dichlorobistriphenylphosphine palladium and cuprous iodide; step S3, slowly adding a toluene solution of 1,3,5-triethynylbenzene; step S4, heating, stirring, washing, etching with a hydrofluoric acid solution, washing and drying to obtain the hollow conjugated microporous polymer. The hollow spherical structure of the hollow conjugated microporous polymer enhances light capture; high specific surface area and hierarchical pores promote mass transfer and active site exposure; the D-A type conjugated system constructed by BT units effectively narrows the band gap, expands the visible light response range and greatly improves the charge separation efficiency; and the all-organic composition makes the hollow conjugated microporous polymer environmentally friendly and relatively low in cost.

The present application relates to a method for quantitatively detecting oxygen concentration by using oxygen-sensitive pure organic room-temperature phosphorescent materials. By doping pure organic room-temperature phosphorescent molecules into a polymer matrix, under the continuous excitation of a light source, the energy transfer between the triplet excitons of the pure organic room-temperature phosphorescent molecules and oxygen is utilized to realize the oxygen concentration-dependent light response enhancement, and by recording the light response time, the quantitative detection of oxygen concentration can be realized without the aid of a spectrometer. Compared with the traditional spectral oxygen sensing scheme, the present application is simple to apply and low in cost, and is suitable for rapid on-site detection of oxygen concentration.

The application provides a kind of light regulated liquid crystal material composition and its preparation method, belongs to light regulated liquid crystal technical field, preparation method includes with docosyl-tetramethyl piperidinol propylene acid ester, (3-acryloyloxy-2-hydroxy propoxy propyl) end-capped polydimethylsiloxane, cyano biphenyl hexyl acrylate and other raw materials preparation adjuvant, nematic liquid crystal monomer, photoisomerization functional monomer, dynamic covalent crosslinking agent, photoinitiator and the mixed liquid consisting of cyclohexanone and propylene glycol methyl ether acetate are under the condition of controlled temperature, rotation speed and vacuum degree, low-speed stirring, high-speed shearing dispersion and vacuum degassing curing are carried out, to obtain light regulated liquid crystal material composition, the application is through the adjuvant design and the one-step method mixing process of simplification, the contradiction between material dynamic response performance and long-term stability is solved, the prepared composition shows millisecond level fast light response, high optical contrast, photo-induced deformation and good cycle durability after film curing.

The application discloses a photosensitive SOD-like nanenzyme Mn / CeO2@COF and a preparation method thereof, and belongs to the technical field of nanomaterials. The technical problem to be solved is to provide a composite nanosystem which combines SOD-like enzyme activity and the light response characteristics of COF. The technical solution is as follows: a covalent bonding strategy is adopted, Mn / CeO2, DPP and TAPA are used as raw materials to form a synthesis formula, a Mn-doped CeO2 nanenzyme with high SOD-like enzyme activity is combined with a COF carrier with a highly ordered pore structure, a high specific surface area and good biocompatibility to obtain a Mn / CeO2@COF binary composite material, the Mn / CeO2@COF binary composite material has superior photothermal performance, photothermal stability and more significant SOD-like enzyme activity, and has great application potential in the biomedical field which needs anti-inflammatory, antibacterial and antioxidant synergistic treatment such as wound healing.

The present application relates to the technical field of culture medium, and discloses a light response type composite culture medium and application thereof in plant cultivation.A carbon fixation microorganism, a nitrogen fixation microorganism and a TiO2 / CdS heterojunction nanomaterial are used to form microspheres, a light nanomaterial and microorganism synergistic carbon fixation and nitrogen fixation system is constructed, and the system is mixed with a buffer solution composed of dipotassium hydrogen phosphate and potassium dihydrogen phosphate to obtain a light response type composite culture medium.The composite culture medium can improve the carbon and nitrogen cycle efficiency through processes such as photocatalysis, hydrogen storage and carbon and nitrogen fixation, and further significantly improve the plant growth cycle and yield.Experiments show that in a closed environment, the composite culture medium provided by the present application can shorten the growth cycle of lettuce to 20 days, and the fresh weight is increased to 60g after 20 days of growth.

The utility model relates to the technical field of light reaction appearance, disclose a kind of light reaction appearance networking connection structure, including support bin, the top of support bin is rotatably connected with multiple open doors, and the bottom of one of the open doors is fixedly connected with display support shell, the top of display support shell is fixedly connected with door detector, the outside of display support shell is fixedly connected with display, the bottom of display support shell is fixedly connected with support assembly, the top of support assembly is fixedly connected with environmental alarm detector, the inside of support assembly is fixedly connected with multiple response integrator. In the utility model, light reaction appearance support bin is opened by pushing open lever, response integrator passes outside information to door detector, environmental alarm detector, is connected with electricity and is transmitted to display via connecting port, improves operating convenience and adaptability, enhances support bin multifunctionality, brings higher efficiency for production.

1. Name of the product in this design: Photoreaction Box. 2. Purpose of this design: This design is used for conducting chemical photocatalytic reaction experiments. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present disclosure provides a method for preparing vitamin D2 using a microchannel reactor, including: (a) dissolving ergosterol in a first solvent to form a first reaction solution; (b) introducing the first reaction solution into the microchannel reactor, and the first reaction solution is irradiated with light source A and light source B in sequence as the first reaction solution passes through a first photoreaction zone and a second photoreaction zone; (c) collecting and concentrating the first reaction solution irradiated by the light source B; (d) optionally, mixing the first reaction solution of step (c) with a second solvent to form a second reaction solution; (e) heating the first reaction solution of step (c) or the second reaction solution of step (d) to obtain the vitamin D2.

The application discloses a novel multi-mode display material and a preparation method thereof. The novel multi-mode display material comprises a multi-mode display layer, and the multi-mode display layer is formed by compounding a CLCE matrix and an up-conversion luminescent material. The CLCE matrix is a controllable cross-linking density elastic network with a spiral superstructure, and the spiral pitch of the CLCE matrix is regulated by a chiral agent concentration, a mechanical force or heat, so that a photonic band gap is regulated. Meanwhile, the chiral agent can also regulate a chiral selective reflection function through the chirality of the chiral agent. The up-conversion luminescent material comprises a functionalized luminescent component, the functionalized luminescent component is combined with the CLCE matrix through a covalent grafting or an adaptive dispersion mode, and the functionalized luminescent component can generate up-conversion luminescence under excitation of specific wavelength light. Through the synergistic effect of the CLCE matrix and the up-conversion luminescent material, the multi-mode display layer has four-dimensional orthogonal optical functions of mechanical response, thermal response, light response and chiral selective reflection.

This invention discloses a photochromic thin film with multiple photoresponses, its preparation method, and its applications, belonging to the field of organic functional materials technology. The raw materials for the photochromic thin film with multiple photoresponses include: a photosensitive monomer, a photoacid monomer, and Dow Corning DC 184; the structural formula of the photosensitive monomer is [insert structural formula here]; wherein, R... 1 ~R 7 Each is independently selected from one of -H, -CH3, -CF3, -CCl3, -CBr3, -N(Me)2, -CN, -OMe, R 8 Selected from -(CH2) n CH=CH2、-(CH2OCH2) n CH=CH2、-(CH2) n One of OCOC(CH3)=CH2, where n is 1~5. This invention provides a photochromic thin film with multiple photoresponses, which can achieve multi-dimensional information storage by controlling the light wavelength and irradiation time, significantly improving information storage capacity and encryption complexity.

The utility model discloses a kind of lighting shell devices with light ray response, it is related to lighting technical field, including shell seat and shell, the shell is detachably installed on shell seat, the inside of the shell seat is provided with circuit control panel, control chip is integrated on the circuit control panel, one side of the shell seat is fixedly connected with positive-negative electrode butt joint pole one, the positive-negative electrode butt joint pole one is electrically connected with circuit control panel.The utility model main part is by detachable shell seat and shell, when shell seat and shell are combined in a piece, photosensitive sensor is electrically connected circuit control panel, photosensitive sensor can sense ambient light intensity and feedback to control chip at this time, control chip automatically adjusts luminance of light emitting element according to ambient light light and dark degree, the setting of above-mentioned detachable structure under the prerequisite of not affecting light response, so that shell is conveniently disassembled, and then the maintenance of lighting lamp is facilitated, improve the practicability of the device.

The application relates to the technical field of water treatment, in particular to a photocatalyst, a preparation method and application thereof. First, a copolymer is obtained by taking acrylonitrile, acrylic acid and vinyl imidazole as monomers, then bismuth ion solution and silver ion solution are sequentially added to carry out a coordination reaction; then a surfactant and sodium tungstate are added to carry out a hydrothermal reaction; and finally post-treatment is carried out to obtain an organic polymer modified bismuth-silver doped photocatalyst. The application utilizes a copolymer containing carboxyl and imidazole groups as a ligand, uniformly anchors bismuth ions and silver ions through coordination, realizes uniform silver doping, avoids agglomeration, effectively widens the light response range through a small amount of silver doping, suppresses carrier recombination, and improves photocatalytic activity. The synergistic effect of the polymer and the surfactant induces the formation of a nanosheet structure, increases the specific surface area and active sites. The prepared photocatalyst has a high degradation rate for antibiotic wastewater such as tetracycline, has good cycle stability, and the degradation rate still remains above 85% after 5 cycles.

The application discloses a photochromic multi-component copolyester, a photochromic biodegradable polyester film and preparation and application thereof. The copolyester comprises a first repeating unit shown in formula (I) and a second repeating unit shown in formula (II); the molar ratio of the first repeating unit to the second repeating unit is (5-95):(95-5). The application introduces a diaryethene photochromic structural unit and a polylactone segment into a polyester molecular main chain, can synthesize a block or random copolymer as required, cooperatively gives the polyester intrinsic photochromic characteristics and biodegradability, and can precisely control the mechanical properties and degradation rate of the material. The application also provides a photochromic biodegradable polyester film prepared from the polyester, the film has adjustable mechanical properties, fast and stable light response, excellent film-forming property, can realize reversible photochromism and controllable degradation.

This invention discloses a rare-earth element-doped tellurate scintillation glass thin film, its preparation method, and its applications. It belongs to the field of materials science and technology, using tellurate glass as a substrate and uniformly co-doping with Eu. 3+ Ions and Yb 3+ Ions; the tellurate scintillation glass film has a thickness of approximately 80 nm to 200 nm. The tellurate scintillation glass film obtained by this invention has a uniform thickness and is defect-free, exhibiting high efficiency in Eu scintillation. 3+ →Yb 3+ Its energy down-conversion properties enable it to be used as a near-infrared luminescent or down-conversion material, and it has superior performance potential in areas such as serving as a spectral conversion layer to improve the light response of silicon-based solar cells or as a near-infrared micro scintillator.