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Fluorescent sensing material with sensing function to phenyl amine compounds, method and application thereof
InactiveCN101550234AEfficient detectionQuick responseFluorescence/phosphorescenceFluorescenceChemical compound
The invention relates to a fluorescent sensing material with sensing function to phenyl amine compounds, the method and the application thereof. The invention is characterized in that: Aryl is connected with pyridyl to form fluorescent sensing material, the fluorescent sensing material comprises line type, star type and dendritic aryl pyridine; the number of the pyridine units is a positive integer from 1 to 150. The preparation method comprise two steps: synthesizing aryl boric acid or boron ester compound and synthesizing aryl pyridine compound. The fluorescent sensing material provided in the invention is used to detect phenyl amine compounds.
Owner:上海新微科技发展有限公司
Hydrothermal preparation method of TiO2-rGO composite photochemical catalyst
InactiveCN102755885AImprove effective separation efficiencyImprove photocatalytic performancePhysical/chemical process catalystsActive agentSurface-active agents
The invention relates to a hydrothermal preparation method of a TiO2-rGO composite photochemical catalyst, sequentially comprising the following steps of: dispersing pretreated TiO2 into 10mL of graphene oxide solution prepared by step 2), and evenly stirring, so as to obtain stable TiO2-GO suspending liquid; and carrying out hydrothermal treatment under the temperature of 100-200DEG C for 0.5-10 hours, washing a product by three times, and carrying out vacuum drying, so as to obtain the TiO2-rGO composite photochemical catalyst. The hydrothermal preparation method has the benefit effects of taking purified water as a solvent, being simple to operate, and free from adding various reducing agents such as an organic surface active agent and an additive, thereby being a green and environment-friendly graphene oxide reduction method. The photoproduction-electron hole effective separation efficiency can be improved due to the high electronic mobility of reduced graphene, so that the photocatalysed performance of the TiO2 can be improved, and the hydrothermal preparation method has the advantages of being very simple to operate, low in equipment requirement, free from expressive reaction devices, easy to synthesize on a large scale, etc.
Owner:WUHAN UNIV OF TECH
Visible light photosensitization preparation method of TiO2-rGO compound light catalyst
InactiveCN103055838AImprove photocatalytic performanceEfficient separationCatalyst activation/preparationPhoto catalysisReducing agent
The invention relates to a visible light photosensitization preparation method of TiO2-rGO compound light catalyst. The method comprises the following steps of: 1) thermally treating the commercial P25 TiO2 at high temperature; 2) ultrasonically dispersing an grapheme oxide in a de-ionized water to form an uniform solution; 3) mixing the Rhodamine B solution with the GO solution to form the uniform solution; 4) dispersing 1g of TiO2 nano particle in the uniform solution of the GO and Rhodamine B, and stirring uniformly; 5) irradiating the suspension liquid for 10-300 minutes in the presence of N2 by using the visible light, washing and drying the obtained product to obtain the TiO2-rGO compound light catalyst. The method provided by the invention has the advantages of environmental conservation and environmental friendliness without adding any organic additive as the reducing agent; meanwhile, the operation is simple, the device requirement is low, and the industrial production is easy to realize; and the prepared compound light catalyst has high photocatalysis, and the good social and economic benefit can be produced.
Owner:WUHAN UNIV OF TECH
Water-soluble perylene imide compounds, usage as DNA intercalator, and applications thereof in growth inhibition of cancer cells
InactiveCN103497154AHigh fluorescence quantum yieldGood water solubilityOrganic chemistryMicrobiological testing/measurementFluorescent imagingSolubility
The invention discloses water-soluble perylene imide compounds, a usage as a DNA intercalator, and applications thereof in the growth inhibition of cancer cells, and belongs to the technical field of chemical synthesis of biological drugs. Through inducing cation amino functional groups into perylene anhydride derivatives and a perylene mono-anhydride system, the water solubility of the perylene anhydride derivatives and the perylene mono-anhydride system is greatly improved; furthermore, the cation amino functional groups are in a photo-stability combination with perylene derivatives, and thus a series of novel water-soluble perylene imide compounds are obtained. The synthesized water-soluble perylene imide compounds can effectively be embedded between the base pairs of DNA double helix of nucleus and be used as a DNA intercalator. The synthesized water-soluble perylene imide compounds have a planar rigid structure, so that the compounds can be specifically enriched around fixed tissue cell nucleus, the compounds have the advantages of strong fluorescence and easiness in fluorescent imaging, and have a similar effect as the DAPI effect of commercial cell nucleus dye. The synthesized water-soluble perylene imide compounds can effectively inhibit the growth of cancer cells such as U2OS, HTC116, Hela, AGS, etc., and have a very prominent anti-tumor effect.
Owner:BEIJING UNIV OF CHEM TECH
Water-soluble perylene bisimide compound and application of water-soluble perylene bisimide compound serving as DNA intercalator in anticancer cells and tumors
ActiveCN103936731AGood water solubilityGood chemical stabilityOrganic active ingredientsOrganic chemistryChemical synthesisSolubility
Owner:BEIJING UNIV OF CHEM TECH
Preparation method of visible light catalytic material with adjustable BiOI-AgI spherical solid solution
ActiveCN103055903AImprove photocatalytic performanceEasy to operateCatalyst activation/preparationMuffle furnaceActive agent
The invention relates to a preparation method of a visible light catalytic material with an adjustable BiOI-AgI spherical solid solution. The preparation method comprises the following steps of adding 1g of BiOI tablet-shaped microsphere into 8.6ml of AgNO3 solution, uniformly stirring, standing and aging for a period at room temperature, filtering the sediment, washing and drying in vacuum, putting into a muffle furnace of 100-500 DEG C to carry out thermal treatment for 0.5-5 hours so as to obtain the materials. The preparation method has the beneficial effects that the operation is simple, only the BiOI tablet-shaped sphere needs to be added into the prepared AgNO3 solution at room temperature to be kept for a certain period, but no organic surface active agents, additives and template agents need to be added; and meanwhile the whole reaction process only needs ordinary glass instruments such as flasks, so that the preparation method requires lowly in equipment (a baking oven and a high temperature furnace are enough), various expensive machining and synthetic equipment and high-temperature high-pressure reaction devices are not required, and the preparation method has the advantage that large-scale synthesis is easy to carry out.
Owner:江苏奥净嘉环保科技有限公司
Egg yolk shell hollow ferroferric oxide@air@carbon nano composite wave-absorbing material and preparation method thereof
The invention relates to the technical field of electromagnetic wave absorption, in particular to a yolk shell hollow ferroferric oxide@air@carbon nano composite wave-absorbing material and a preparation method thereof, and the preparation method comprises the following steps: (1) coating SiO2 on the surfaces of hollow ferroferric oxide nano particles; (2) carrying out carboxylation modification on the surface; (3) growing MIL-100 (Fe) on the surface in situ; (4) carrying out high-temperature calcination in a nitrogen atmosphere; and (5) heating and stirring in alkali liquor to remove the SiO2 layer, washing and drying to obtain the yolk shell hollow ferroferric oxide@air@ nano composite wave-absorbing material. The preparation method disclosed by the invention is low in cost, green and safe, free from any toxic and harmful substances, free from secondary pollution and easy for large-scale synthesis, and has an industrialization prospect. The yolk shell hollow ferroferric oxide@air@carbon nano composite wave-absorbing material prepared by the preparation method has the characteristics of small thickness, light weight, low filling ratio, strong absorption, wide frequency band and easiness in regulation and control of wave-absorbing performance, and has a wide application prospect.
Owner:ZHEJIANG UNIV OF TECH
Polyimide material as well as preparation method and application thereof
InactiveCN110964198AIncrease energy densityHigh specific capacityCell electrodesDimethyl formamideChemistry
The invention discloses a polyimide material as well as a preparation method and application thereof. The polyimide material is generated by taking N, N-dimethylformamide, N-methylpyrrolidone and thelike as solvents and reacting anhydrides such as 1, 4, 5, 8-naphthalenetetracarboxylic dianhydride, pyromellitic dianhydride and 1, 2, 4, 5-cyclohexane tetracarboxylic dianhydride with urea. The polyimide material shows relatively high specific capacity and stable cycle index in an aqueous lithium ion half battery. In the future, the material can be matched with more mature positive electrode materials to construct a high-energy-density aqueous lithium ion total battery.
Owner:NINGBO FENGCHENG ADVANCED ENERGY MATERIALS RES INST
In-situ transformation preparation method of efficient C3N4-CdS composite photocatalytic material
InactiveCN104624219AStrong interfacial couplingGood interface couplingPhysical/chemical process catalystsTube furnacePhysical chemistry
The invention relates to an in-situ transformation preparation method of an efficient C3N4-CdS composite photocatalytic material. The in-situ transformation preparation method comprises the following steps that (1) tripolycyanamide is dispersed in deionized water to form a uniform solution; (2) cadmium sulfide powder is uniformly dispersed in the tripolycyanamide solution uniformly, the cadmium sulfide powder and the tripolycyanamide solution mixed fully to achieve that tripolycyanamide is uniformly absorbed on the surface of the cadmium sulfide powder; (3) liquid obtained in Step 2 is transferred to a blast drying oven to be dried, and tripolycyanamide modified cadmium sulfide powder is obtained; and (4) the tripolycyanamide modified cadmium sulfide powder is put in a tube furnace and calcined, and the efficient C3N4-CdS composite photocatalytic material is obtained. The in-situ transformation preparation method has the benefits of being simple efficient and green when being used for synthesizing the photocatalytic material with the surface uniformly loaded with C3N4-CdS; interface transmission and sharp separation of photon-generated carriers are further facilitated; and the photocatalysis performance is further improved. In addition, the synthetic method is simple to operate, and requirements on equipment are low.
Owner:WUHAN UNIV OF TECH
Preparation method of graphite-phase carbon nitride solid fluorescent powder and application thereof in light fingerprint extraction
InactiveCN105154075AReveal latent fingerprintsThe synthesis method is simplePerson identificationNitrogen and non-metal compoundsPhotoluminescenceLatent fingerprint
The invention provides a preparation method of graphite-phase carbon nitride solid fluorescent powder and application thereof in quickly developing latent fingerprints on different object surfaces. The graphite-phase carbon nitride solid fluorescent powder can be used for fluorescence labeling, and can be used in the fields of crime scene criminal detection and the like. The invention aims to quickly develop latent fingerprints on different individual and different object surfaces by utilizing the characteristic of photoluminescence of the nano graphite-phase carbon nitride. The high-fluorescence-responsivity graphite-phase carbon nitride solid fluorescent powder is prepared by using melamine as an N-containing precursor and using sodium chloride and potassium chloride as assistants. The application process in fingerprints comprises the following steps: lightly dipping a fingerprint brush into a small amount of graphite-phase carbon nitride solid fluorescent powder, lightly brushing the suspected fingerprint region, removing the excess powder, putting under a 365nm ultraviolet lamp, and observing the special blue light which is conveniently photographed and stored by a digital camera. Due to the specific adsorptivity of the nano material, the affinity between the nano powder and fingerprint ridges is high. The graphite-phase carbon nitride solid fluorescent powder can be used for successfully extracting fingerprints on different individual and different object surfaces.
Owner:ZHENGZHOU UNIV
Synthesis method of supported silver iodide nanoparticle visible light photocatalyst
InactiveCN102631937AImprove photocatalytic performanceReduce photocatalysisWater/sewage treatment by irradiationCatalyst activation/preparationSilver iodideActive agent
The invention relates to a synthesis method of a supported silver iodide nanoparticle visible light photocatalyst, which comprises the following steps: adding 1g of Ag2WO4 nanorods into a prepared 25ml potassium iodide solution, stirring uniformly, standing in a dark room at room temperature for 1-24 hours, filtering to obtain a yellow precipitate, respectively washing with deionized water and anhydrous alcohol, and finally, carrying out vacuum drying to obtain the supported silver iodide nanoparticle visible light photocatalyst. The invention is very simple to operate: the silver tungstate nanorod are added into the prepared potassium iodide solution at room temperature, and the solution is kept for some time without adding various organic surface active agents, additives, templates and the like; since the whole reaction process only needs beakers and other common glass apparatuses, so the facility request is low; and the invention does not need various expensive processing and synthesizing facilities or high-temperature high-pressure reactors, and can easily implement mass synthesis.
Owner:WUHAN UNIV OF TECH
Preparation method for amino-functionalization graphene/TiO2 composite material with selective photocatalytic degradation function
InactiveCN104646068AUnique selective photocatalytic degradation performanceEasy to operateWater/sewage treatment by irradiationOrganic-compounds/hydrides/coordination-complexes catalystsAnilinePhotocatalytic degradation
The invention relates to a preparation method for amino-functionalization graphene / TiO2 composite material with a selective photocatalytic degradation function. The method comprises the following steps: 1) TiO2 powder is added into a graphene oxide solution, and is mixed to form a supernatant solution; 2) the supernatant solution is transferred to a hydrothermal kettle to obtain a titanium dioxide composite material modified by reduction graphene; 3) the composite material is uniformly scattered into an aniline ethanol solution for soaking; 4) during mixing, the mixed solution is subjected to soaking, washing and constant-temperature drying so as to obtain the amino-functionalization graphene / TiO2 composite material. The preparation method has the beneficial effects that the composite photocatalytic material shows unique selective photocatalytic degradation performance to azo dyes, and a theoretical basis and application guidance are provided for development of technology for treating poisonous and harmful azo dyes during environmental governance. The preparation method has the advantages that the operation is very simple, the equipment is low in requirement, various reaction devices are not needed, and the amino-functionalization graphene / TiO2 composite material can be easily synthesized in a large scale.
Owner:WUHAN UNIV OF TECH
Method for improving luminescent property of aluminate long-lasting phosphor material
InactiveCN108841375AImprove luminous performanceLuminescence properties of long afterglow luminescent materialsLuminescent compositionsAluminatePhosphor
The invention discloses a method for improving the luminescent property of an aluminate long-lasting phosphor material. The method comprises the following steps: firstly, coating the surface of SrAl2O4: Eu<2+>, Dy3<+> luminescent powder with a layer of SiO2 by adopting a sol-gel method, then adsorbing a layer of silver particles on the surface to obtain a surface silver-loaded SiO2-coated SrAl2O4:Eu<2+>, Dy<3+> long-lasting phosphor material. The method improves the long-lasting phosphor luminescent property and is simple in synthesis process and convenient for industrial large-scale production, and the prepared material is relatively high in long-lasting phosphor luminescent property and expected to produce good social and economic benefits.
Owner:SHAANXI UNIV OF SCI & TECH
Single-layer fluorescent conjugated polymer membrane and preparation method thereof
The invention discloses a single-layer fluorescent conjugated polymer membrane and a preparation method thereof. Long-chain aliphatic groups are introduced in carbon-9 and carbon-9' of fluorene; long-chain alkoxy groups are introduced in carbon-2 and carbon-5 of 1, 4-paradiiodobenzene; the two monomers are copolymerized to form a polymer; meanwhile, the polymer is immobilized on the surface of a substrate material to form a single-layer fluorescent conjugated polymer membrane material. The single-layer fluorescent conjugated polymer membrane material has excellent detection sensitivity to 1, 3, 5-trinitrotoluene, 2, 4-dinitrotoluene and 1, 3, 5-trinitrophenol.
Owner:INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
Functionalized meso-porous silia-based material and preparation method and application thereof
The invention discloses a functionalized meso-porous silica-based material. The material is mainly prepared from polymine and silica gel, wherein the mass percentage content of the polymine is 13.2-28.6 wt%, the particle size is 20 micrometers to 100 micrometers, the specific surface area is 250-420 m<2> / g, the distribution range of meso-porous size is 2-15 nanometers, and the most probable pore size is 5.0-5.5 nanometers. The large-particle functionalized meso-porous silica-based material is obtained by combining a sol-gel method and a coprecipitation method for the first time, polymine participates in a hydrolysis-polycondensaiton in the meso-porous silica gel forming process, a target product is directly synthesized, a preparation method is simple, the product can be synthesized on a large scale, and raw materials are cheap and easy to obtain; the functionalized meso-porous silica-based material is large in particle size and large in specific area, has multiple meso-pores, functionalized modified groups are uniform in distribution and high in content, the content of a polymer can reach 28.6 wt%, the material can be adopted as a microminiaturized filling type solid phase extraction absorbent, is a good anion exchange material and is wide in application range and obvious in effect.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Preparation method of Ag/Ag (I)-TiO2 nanocrystalline visual light photochemical catalyst
InactiveCN102626622AImprove visible light catalytic performanceEasy to operateMetal/metal-oxides/metal-hydroxide catalystsPhoto catalyticLaboratory oven
The invention relates to a preparation method of an Ag / Ag (I)-TiO2 nanocrystalline visual light photochemical catalyst, which comprises the following steps of (1) enabling silver nitrate to be soluble in deionized water to form uniform solution; (2) enabling 1g of TiO2 nanocrystalline to be dispersed in 9.3ml of silver nitrate solution prepared in the step (1), stirring, stoving and processing toobtain powder; and (3) conducting heat treatment on the powder prepared in the step (2) for 0.5-5h to obtain the Ag / Ag (I)-TiO2 nanocrystalline visual light photochemical catalyst. The preparation method is simple in operation, simultaneously the whole reaction process only needs common glass devices such as beakers, facility requests are low (only needing an oven and a high temperature furnace),no expensive machining synthesizing equipment and high temperature, high pressure reaction devices and the like is needed, and the photochemical catalyst is easy in mass synthesizing and the like. Prepared photochemical catalysis materials have high visual light catalytic performance, and are expected to obtain good social and economic benefits.
Owner:WUHAN UNIV OF TECH
Preparation method of efficient and stable Fe (III)/AgBr composite visible photocatalyst
InactiveCN103055904AImprove visible light catalytic performanceEasy to operatePhysical/chemical process catalystsActive agentSurface-active agents
The invention relates to a preparation method of an efficient and stable Fe (III) / AgBr composite visible photocatalyst. The preparation method comprises the following steps of: 1) synthesizing AgBr particles through ion precipitation reaction; 2) dissolving ferric nitrate in deionized water to form a uniform solution; 3) adding the AgBr particles in the ferric nitrate solution and thermally insulating in water bath; and 4) taking out the reaction solution obtained in step 3), filtering out and washing precipitate, and vacuum-drying to obtain the Fe (III) / AgBr composite visible photocatalyst. The preparation method is very simple in operation, so that various organic surfactants, additives and the like are not needed to be added; at the same time, only a beaker and the like common glass apparatus are needed in a whole reaction process, so that the equipment requirement is low; and expensive various processing synthesis equipments and high temperature and high pressure and the like reaction device are not needed, so that the preparation method has the advantage of being easy to synthesize in large volumes. The prepared photocatalyst has high visible photocatalytic performance, so that the photocatalyst is hopeful to generate good social and economic benefits.
Owner:WUHAN UNIV OF TECH
Preparation method of porous Bi2WO6 nanosheet photocatalytic material
InactiveCN104587999ALarge specific surface areaNo pollution in the processMetal/metal-oxides/metal-hydroxide catalystsHeat treatedMaterials science
The invention relates to a preparation method of a porous Bi2WO6 nanosheet photocatalytic material. The preparation method sequentially comprises the following steps: tiling Bi(NO3)3 solid powder evenly on the bottom of a flask; adding a Na2WO4 solution slowing into the flask slowly along the wall of the flask, carrying out constant-temperature standing reaction, filtering the obtained precipitate, washing and drying so as to obtain a pore-free amorphous Bi2WO6 nanosheet; and carrying out thermal treatment at high temperature of 200-800 DEG C for 0.5-5 hours, thereby obtaining the porous Bi2WO6 nanosheet photocatalytic material. The preparation method has the beneficial effects that the preparation is a rapid, economical and environment-friendly synthetic method of the porous Bi2WO6 nanosheet photocatalytic material; the porous Bi2WO6 nanosheet photocatalytic material synthesized by the method has relatively high specific surface area, so that Bi2WO6 shows high photocatalytic performance.
Owner:WUHAN UNIV OF TECH
Polymerizable lignin-based macromolecular photoinitiator, preparation method and applications thereof
ActiveCN110857336AImprove performanceHigh photoinitiative activityAdditive manufacturing apparatusPolyurea/polyurethane coatingsEpoxyAlkane
The invention discloses a polymerizable lignin-based macromolecular photoinitiator, a preparation method and applications thereof, wherein the structure formula of the polymerizable lignin-based macromolecular photoinitiator is represented by the following formula I, wherein the group defined in the specification is a terminal-hydroxyl-free molecular skeleton of lignin, M1 is a terminal-hydroxyl-free and halogen-atom-free molecular skeleton after epoxy haloalkane is subjected to an epoxy ring-opening reaction, M2 is an acyl-chloride-free and double-bond-free molecular skeleton of a solubilizing compound, M3 is a hydroxyl-free molecular skeleton of a cracking type photoinitiator, n1 and n3 are natural numbers of greater than or equal to 1, n2 is an integer of greater than or equal to 0, andthe sum of n1, n2 and n3 is the number of the terminal hydroxyl groups of lignin. The invention also discloses a preparation method and applications of the photoinitiator. The photoinitiator disclosed by the invention has characteristics of good ester solubility, good polymerizability, high photo-initiation activity, good thermal stability, good storage performance, low viscosity, low mobility, low toxicity and no volatilization.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Preparation method for high-efficiency amorphous ZnO/AgCl composite visible light photocatalyst
InactiveCN104959156AImprove photocatalytic activityEfficient separationPhysical/chemical process catalystsZinc nitrateVisible light photocatalytic
The invention relates to a preparation method for a high-efficiency amorphous ZnO / AgCl composite visible light photocatalyst. The method comprises the following steps: (1) reacting a AgNO3 solution and a KCl solution to obtain a AgCl powder body as a photocatalyst raw material; (2) dissolving zinc nitrate in deionized water to obtain a uniform zinc nitrate solution, and dissolving urea in the deionized water to obtain a uniform urea solution; (3) adding the AgCl powder body into the zinc nitrate solution and the urea solution, soaking and stirring to obtain a product; (4) filtering the product, washing by the deionized water, adding a methyl orange solution, and radiating in visible light; and (5) filtering a precipitate obtained in the step (4), washing by the deionized water, and drying under a vacuum condition so as to obtain the high-efficiency amorphous ZnO / AgCl composite visible light photocatalyst. The method has the beneficial effects that the operation is easy, and needed raw materials are green and easily available; a prepared photocatalytic material has the high-efficiency visible light photocatalytic performance, and can be used for effectively degrading organic pollutants.
Owner:WUHAN UNIV OF TECH
Method for selectively modifying {110} surface of bismuth vanadate with NiOOH assistant
InactiveCN110201679AEasy to operateNo pollution in the processWater/sewage treatment by irradiationWater treatment compoundsNickel saltBismuth vanadate
The invention relates to a method for selectively modifying the {110} surface of bismuth vanadate with a NiOOH assistant. The method comprises the following steps: 1) preparing an electrolyte solution; 2) adjusting the pH value of the electrolyte solution prepared in step 1) to 2-12; 3) mixing the solution obtained in step 2) with a Pt / BiVO4 powder to form a uniform suspension; 4) adding a water-soluble nickel salt to the suspension obtained in step 3); 5) uniformly stirring the suspension in step 4) at room temperature, and illuminating the suspension for a certain period of time; and 6) filtering, washing and drying a precipitate obtained in step 5) to obtain a photocatalyst selectively modified with the NiOOH assistant. The synthesis method has the advantages of simplicity in operation,greenness, environmental protection, energy saving, and no need to add various organic surfactants, and the nickel oxyhydroxide has the advantages of wide sources of raw materials, low price, no toxicity, no pollution and stable chemical properties.
Owner:WUHAN UNIV OF TECH
ATP (adenosine triphosphate) multisite binding fluorescence-enhanced type probe molecule and preparation method and application thereof
ActiveCN109456349AEfficient identificationSelective recognitionGroup 3/13 element organic compoundsFluorescence/phosphorescencePolyamine CompoundA375 cell
The invention belongs to the technical field of fluorescent probes, and particularly discloses a ATP (adenosine triphosphate) multisite binding fluorescence-enhanced type probe molecule based on rhodamine derivatives and a preparation method and application thereof. The preparation method comprises the following steps of introducing a polyamine compound and aldehyde-containing boric acid into a rhodamine system, so as to obtain multiple ATP multisite binding fluorescent probes with simple structures. The synthesized fluorescent probe has the advantages that by the ATP multisite binding (interaction of ions, interaction of other hydrogen bonds, action of covalence bonds, and stacking action of phi-phi), the spiral structure of the rhodamine is induced for ring opening at high efficiency, the strong fluorescence can be produced, and the fluorescent probe can be used for selectively identifying the ATP at high efficiency, without the interference by other phosphate ions; the fluorescent probe can be used for selectively marking A375 cell mitochondria, and be used as a specific mitochondria targeting fluorescent probe; the synthesized fluorescent probe can be used for monitoring the change of ATP concentration of the A375 cell mitochondria in real time via the fluorescence imaging.
Owner:SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
Method for improving luminescence performance of aluminate long-afterglow material by platinum
InactiveCN108410454AImprove luminous performanceEasy to operateLuminescent compositionsQuantum efficiencyPlatinum
The invention discloses a method for improving a luminescence performance of an aluminate long-afterglow material by platinum. The method includes that by adsorption of H2PtCl6 on the surface of spherical Sr4Al14O25:Eu<2+>,Dy<3+> luminescent powder, platinum particles are loaded on the surface of the luminescent powder through photo-reduction reaction to obtain a platinum surface loaded Sr4Al14O25:Eu<2+>,Dy<3+> long-afterglow luminescent material, and accordingly the luminescence performance of the aluminate long-afterglow material is improved. By loading of the platinum particles on the surface of the Sr4Al14O25:Eu<2+>,Dy<3+> luminescent powder, a material photoresponse range, light absorbing intensity and quantum efficiency are effectively improved, and accordingly the afterglow performance is remarkably improved. In addition, the method is simple in synthesis process, high in operability and convenient for industrial large-scale production, and the prepared material has the great long-afterglow luminescence performance and is expected to create high social and economic benefits.
Owner:SHAANXI UNIV OF SCI & TECH
Application of lanthanide series metal coordination polymer solution and solid powder in extracting latent fingerprints
InactiveCN105694850AEasy to synthesizeEasy to operateCharacter and pattern recognitionDiagnostic recording/measuringLatent fingerprintLanthanide
The invention relates to application of a lanthanide series metal coordination polymer solution and solid powder in extracting latent fingerprints. The synthetic method is simple, large-quantity synthesis is easy, and latent fingerprints of different individuals and surfaces of different objects can be shown. Nanoparticles of a lanthanide series metal coordination polymer have close combination with fingerprint lines and poor combination with other areas, and thus the showing result is accurate; the nanoparticles of the lanthanide series metal coordination polymer can be operated in different media, and thus have practicability on surfaces without pores or porous surfaces; fingerprint effects can be directly observed with naked eyes without any instruments, fingerprint effect pictures can be clearly recorded with a common digital camera, and thus comparison and storage are convenient; synthetic materials are cheap, and compared with a traditional product, a product of the lanthanide series metal coordination polymer solution and solid powder is environmentally friendly, safe and free of toxicity or smells, and does not harm an operator in any way.
Owner:康文玲
Preparation method of metal silver surface supported M2MgSi2O7:Eu<2+>, Dy<3+> long-lasting phosphor material
InactiveCN108841380ALong afterglow high luminous performanceBroaden the photoresponse rangeLuminescent compositionsAlcoholPhosphor
The invention discloses a preparation method of a metal silver surface supported M2MgSi2O7:Eu<2+>, Dy<3+> long-lasting phosphor material (M is one or two of Ca, Sr and Ba). The preparation method comprises the following steps: adsorbing a layer of silver nitrate solution by M2MgSi2O7:Eu<2+>, Dy<3+>, and generating silver particles supported on M2MgSi2O7:Eu<2+>, Dy<3+> under ultraviolet irradiation; washing the unreacted silver nitrate and silver particles having poor adsorption capacity with alcohol, thereby obtaining the silver surface supported M2MgSi2O7:Eu<2+>, Dy<3+> long-lasting phosphormaterial. After the luminescent powder prepared according to the method disclosed in the invention is subjected to surface metal silver deposition, the absorption light intensity and waveband are improved, the afterglow property is obviously enhanced, the initial brightness is improved by 8 times or more, and the slow decay brightness is improved by 2 times or more.
Owner:SHAANXI UNIV OF SCI & TECH
Method for preparing Pt/Au-BiVO4 Z-type visible-light nanosheet photocatalyst
InactiveCN106492800AStrong absorption capacityImprove photocatalytic activityMetal/metal-oxides/metal-hydroxide catalystsVisible light photocatalyticAqueous solution
The invention relates to a method for preparing a Pt / Au-BiVO4 Z-type visible-light nanosheet photocatalyst. The method comprises the following steps: ultrasonically dispersing an Au-BiVO4 nanosheet photocatalyst in an ethanol aqueous solution, and forming uniform suspension; adding a chloroplatinic acid aqueous solution into the suspension; further introducing N2 protection and closing the system, and illuminating on an LED lamp; performing alcohol-washing and water-washing on the obtained precipitate, filtering, and performing vacuum drying, so as to obtain the efficient and stable Pt / Au-BiVO4 Z-type visible-light nanosheet photocatalyst. The method disclosed by the invention has the beneficial effects that the synthetic method is easy to operate, and various organic surfactants, additives and the like do not need to be added. Meanwhile, the whole reaction process is low in equipment requirement and has the advantages that the product is easily synthesized on a large scale and the like, and the prepared photocatalytic material has excellent visible-light photocatalytic performance.
Owner:WUHAN UNIV OF TECH
Organic semiconductor compound and its preparation method and uses
InactiveCN100455563CGood electron transport propertiesEasy to synthesize in large quantitiesCarboxylic acid nitrile preparationOrganic compound preparationElectronic transmissionEthyl cyanoacetate
The invention discloses an organic semi-conductor compound and preparing method and application, which possesses structural formula as formula I, wherein R1, R2 and R3 is ethyl cyanoacetate subunit or O atom as formula II, which is not O atom at the same time; the R in the formula II is C1-8 alkyl. The invention possesses superior electronic transmission property, which is convenient to do mass synthesis.
Owner:PEKING UNIV
A hollow ferric oxide@air@carbon nanocomposite wave-absorbing material of egg yolk shell and its preparation method
The present invention relates to the technical field of electromagnetic wave absorption, in particular to a hollow iron ferric oxide@air@carbon nanocomposite wave-absorbing material of egg yolk shell and a preparation method thereof, which comprises the following steps: (1) coating the surface of hollow iron ferric oxide nanoparticles Coated SiO 2 ; (2) Carboxylation modification on the surface; (3) In-situ growth of MIL-100(Fe) on the surface; (4) Calcination at high temperature under nitrogen atmosphere; (5) Heating and stirring in lye to remove SiO 2 After washing and drying, the egg yolk-shell hollow ferric oxide@air@carbon nanocomposite wave-absorbing material is obtained. The preparation method of the present invention is low in cost, green and safe, does not produce any toxic and harmful substances, has no secondary pollution, is easy to synthesize in large quantities, and has industrialization prospects; the egg yolk shell hollow ferric oxide@air@carbon obtained by the preparation method of the present invention Nanocomposite absorbing materials have the characteristics of thin thickness, light weight, low filling ratio, strong absorption, wide frequency band, and easy control of absorbing performance, and have broad application prospects.
Owner:ZHEJIANG UNIV OF TECH
Preparation method of highly efficient amorphous zno/agcl composite visible light photocatalyst
InactiveCN104959156BImprove separation efficiencyEasy to degradePhysical/chemical process catalystsZinc nitrateMethyl orange
The present invention relates to a preparation method of amorphous ZnO / AgCl composite visible light photocatalyst, comprising the following steps: 1) using AgNO 3 The AgCl powder generated by the reaction between the solution and the KCl solution is the raw material of the photocatalyst; 2) dissolve zinc nitrate in deionized water to form a uniform solution; dissolve urea in deionized water to form a uniform solution; 3) take the AgCl powder and add it to the zinc nitrate and urea solution; soak and stir; 4) after the product is filtered and washed with deionized water, add methyl orange solution, and irradiate under visible light; 5) filter the precipitate obtained in step 4), wash with deionized water, and vacuum After drying, an amorphous ZnO modified AgCl composite high-efficiency visible light photocatalyst is obtained. The beneficial effects of the invention are as follows: the operation is simple; the required raw materials are environmentally friendly and easy to obtain; the prepared photocatalytic material has efficient visible light photocatalytic performance and can effectively degrade organic pollutants.
Owner:WUHAN UNIV OF TECH
A kind of preparation method of polyfluoroaniline nanowire
Owner:SHANGHAI NAT ENG RES CENT FORNANOTECH
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