1930 results about "Photothermal conversion" patented technology

The invention relates to a deicing super-hydrophobic coating based on MXene, a coating, a preparation method and application of the coating. The coating comprises the following components in percentage by mass: 2%-5% of a super-hydrophobic modified MXene photo-thermal material, 2%-5% of epoxy resin, 0.5%-1.5% of an epoxy resin curing agent, 0.5%-1.5% of PDMS, 0.05%-0.15% of a PDMS curing agent and 80%-90% of a diluent. Wherein the super-hydrophobic modified MXene photo-thermal material is MXene powder treated by fluorine-free long-chain silane, and the super-hydrophobic modified MXene photo-thermal material is a super-hydrophobic modified MXene photo-thermal material. MXene with excellent photo-thermal conversion performance is used as a photo-thermal material, fluorine-free long-chain silane is used for performing low-surface-energy hydrophobic modification on the MXene material, environmental pollution caused by perfluorinated or polyfluorinated organic compounds is avoided, photo-thermal performance and super-hydrophobic performance are integrated, the advantages of a super-hydrophobic coating and a photo-thermal coating are integrated, and the application prospect is wide. The deicing super-hydrophobic coating based on MXene can be used for passive ice prevention and active photo-thermal deicing.

The invention discloses a preparation method of a flexible material with double functions of radiation refrigeration and photothermal conversion storage, and relates to the field of composite phase change materials. The preparation method comprises the following steps: 1) preparing the flexible phase change material matrix by utilizing n-octadecane, SEBS and POE through hot pressing; 2) preparing a BaSO4 solution by using absolute ethyl alcohol, deionized water, a water-based defoaming agent, a water-based dispersing agent and an acrylic resin emulsion; (3) preparing an MXene solution; and 4) spraying the BaSO4 solution on the surface of one side of the flexible composite phase change material matrix by using a spray gun, and spraying the MXene solution on the surface of the other side of the flexible composite phase change material matrix to obtain the flexible composite phase change material. The radiation refrigeration layer can strongly reflect visible light and near-infrared light, has high emissivity in an infrared light area, especially in an atmospheric window wave band, reduces absorbed atmospheric heat radiation, reduces urban heat island effect caused by dense building groups in cities, and can effectively solve the problems of large day and night temperature difference and heat supply and demand in summer and winter.

The invention provides porous foam with a bionic lotus seedpod surface structure and a preparation method of the porous foam, belongs to the technical field of photothermal conversion materials, and aims to solve the technical problem that a solar evaporator is poor in water evaporation performance and salt resistance. According to the invention, a vacuum solution pouring technology / salt template method / template auxiliary technology is combined to prepare the composite foam, and the composite foam has a surface hemispherical pore structure and a lower layer honeycomb hierarchical pore structure at the same time, which is benefited from unique surface and internal pore structures; the solar evaporator shows efficient and stable evaporation performance, high salt resistance, good self-cleaning capacity and the like in NaCl solutions with different concentrations, and the double-layer hierarchical pore composite foam has wide application prospects in sewage treatment and seawater desalination. The preparation method has the advantages of being simple in process, convenient to operate, controllable in surface pore structure and internal pore shape, capable of forming evaporators in complex shapes and the like.

The invention belongs to the technical field of seawater desalination, and particularly relates to a solar efficient photo-thermal conversion type floating ball and seawater evaporation application thereof. Specifically, the solar efficient photo-thermal conversion type floating ball comprises a spherical inner core and a photo-thermal conversion material wrapping the spherical inner core, and the density of the spherical inner core is 25-500 kg / m < 3 >; wherein the photo-thermal conversion material is coated at least twice. According to the solar efficient photo-thermal conversion type floating ball, the photo-thermal conversion material is coated at least twice, the loading capacity is improved, meanwhile, a porous network structure is formed, and the seawater evaporation rate can be increased; sunlight irradiates on the floating ball, light energy is converted into heat energy under the action of the surface photo-thermal conversion material, salt is deposited on the floating ball along with water evaporation, and surface salt deposition is automatically and dynamically removed through the free rotating motion of the floating ball on the water surface under the action of centrifugal force and water flow scouring. And self-recovery of the evaporation process and continuous seawater evaporation are realized.

The invention discloses a preparation method and application of a pH-responsive controllable oil-water separation material, polyurethane sponge is used as a substrate, polypyrrole is attached to the sponge substrate through an in-situ polymerization method, a pH-responsive polymer is introduced into the sponge substrate through a soaking method, and finally the pH-responsive controllable oil-water separation material is obtained. The controllability of the material in the oil-water separation process is reflected as follows: due to the introduction of the pH responsive polymer, the surface of the material has pH responsiveness, the surface of the material has different wettability by adjusting the pH value, different types of oil-water mixtures can be controllably separated in a targeted manner, and the adsorption and desorption of oil products can be realized. Due to the introduction of polypyrrole, the material has good photo-thermal conversion capacity, the viscosity of crude oil can be effectively reduced, and the absorption rate of the crude oil can be improved. The material with pH responsiveness has wide application prospects in the fields of oil-water separation, oil product adsorption and desorption and crude oil absorption.

The invention belongs to the technical field of medical dressings for repairing skin injury wounds, and provides a nanofiber wound dressing with a photo-thermal chemical synergistic antibacterial effect and a preparation method. A PVA / CS solution composed of polyvinyl alcohol PVA and chitosan CS is used as an electrospinning matrix, branched polyethyleneimine BPEI modified graphene oxide GO nanoparticles GO-BPEI are added to serve as a photo-thermal antibacterial component, lanthanum chloride is added to serve as a chemical antibacterial component, an electrostatic spinning solution is prepared, the electrostatic spinning solution is subjected to electrostatic spinning, and the PVA / CS / GO-BPEI / La nanofiber wound dressing is obtained. The obtained fiber surface has a good three-dimensional structure, shows obvious chemical antibacterial ability, can be subjected to photothermal conversion under near-infrared light illumination, can achieve the purpose of photothermal bacteriostasis, further improves the antibacterial property, and has good mechanical property, air permeability, water absorption and biocompatibility at the same time.

The invention discloses a porphyrin-based covalent organic framework nano material, a preparation method and application of the porphyrin-based covalent organic framework nano material in polyurethane, and belongs to the field of functional nano materials and antibacterial materials. The porphyrinyl covalent organic framework nano material is prepared from 5, 10, 15, 20-tetra (4-aminophenyl) porphyrin and bis-(5-formyl furfuryl) ether through a Schiff base reaction, and the structural formula of the porphyrinyl covalent organic framework nano material is # imgabs0. The porphyrinyl covalent organic framework nano material prepared by the invention has relatively high photothermal conversion efficiency when being used as a photothermal agent, and has a relatively good sterilization effect under the condition of relatively low concentration. Besides, based on the porphyrin-based covalent organic framework nano material, a WPUS / Por-COF composite film is prepared, the composite film has excellent mechanical properties and excellent photothermal conversion efficiency, and has a good sterilization effect under the condition of relatively low concentration, bacteria can be inactivated within a short time, and the sterilization rate can reach 99% or above.

The invention relates to a preparation method and application of a Janus structure photo-thermal-piezoelectric hydrogel dressing for infected wound repair, and the preparation method comprises the following steps: respectively dissolving phenylboronic acid grafted methacrylamide gelatin and dopamine grafted hyaluronic acid in deionized water, adding MXene coated CeO2 heterojunction, and ultrasonically dispersing uniformly, so as to obtain the Janus structure photo-thermal-piezoelectric hydrogel dressing for infected wound repair. After mixing, sodium hydroxide is used for adjusting the pH value to alkalescence, and a Janus structure inner layer is formed; respectively dissolving phenylboronic acid grafted gelatin and o-nitrobenzyl alcohol grafted hyaluronic acid in deionized water, adding BaTiO3, ultrasonically dispersing uniformly, and mixing to form a Janus structure outer layer; the Janus structure photo-thermal-piezoelectric hydrogel dressing prepared by the invention has the characteristic of space-time release so as to adapt to the wound repair process, in addition, the Janus structure photo-thermal-piezoelectric hydrogel dressing also has excellent photo-thermal conversion performance, bacteria infecting the wound are killed through photo-thermal heating, physiological electric signals are effectively simulated through the piezoelectric effect, cell behaviors are regulated and controlled, and the Janus structure photo-thermal-piezoelectric hydrogel dressing can be used for wound infection repair.

The invention discloses a carbon nanotube-aerogel-aluminum silicate super-hydrophobic anti-icing material and a preparation method thereof. The composite material comprises a photo-thermal carbon nanotube-aerogel super-hydrophobic composite solution and an aluminum silicate fiber substrate. The photo-thermal carbon nano tube-aerogel super-hydrophobic composite solution is a composite solution formed by mixing carbon nano tubes, aerogel particles, resin, a low-surface-energy modifier and a diluent, the material can improve the moisture-proof and heat-insulating capacity of aluminum silicate fibers used in an outdoor high-humidity environment, photo-thermal conversion loss is reduced due to the super-hydrophobicity of the surfaces of the aluminum silicate fibers, and the photo-thermal conversion efficiency is improved. Therefore, the photo-thermal deicing efficiency of the surface is improved.

The invention discloses a preparation method of a salt-resistant polyurethane sponge evaporator for a photo-thermal interface, which comprises the following steps: taking polyurethane sponge as a support framework, taking polyvinyl alcohol as a precursor solution, adding carbon black and PEDOT: PSS (poly (3, 4-ethylenedioxythiophene): poly (styrenesulfonate)) into the precursor solution as photo-thermal materials, and synthesizing the salt-resistant polyurethane sponge evaporator by an extrusion thermal crosslinking freeze-drying method. According to the obtained evaporator, the excellent photothermal conversion performance of carbon black / PEDOT: PSS and a porous framework structure mainly comprising polyurethane / polyvinyl alcohol are fully utilized, the water absorption, the mechanical performance and the photothermal conversion efficiency of the evaporator are effectively improved, the heat conductivity is reduced, it is guaranteed that salt crystals do not appear inside and on the surface of the evaporator while efficient interface evaporation is achieved, and the service life of the evaporator is prolonged. The device can be widely applied to solar interface evaporation in saline water, actual seawater or high-salinity wastewater so as to obtain clean water resources.

The invention discloses an MXene / PVDF photo-thermal composite film for seawater evaporation, and belongs to the technical field of solar interface water vapor conversion. The photo-thermal composite film is prepared by the following steps: blending an MXene dispersion liquid and PVDF (Polyvinylidene Fluoride) to obtain a film casting liquid, and carrying out blade coating to prepare the film; the photothermal conversion material MXene is a dispersion liquid of Ti < 3 > C < 2 > T < x > in water; and the photothermal conversion material MXene is obtained by etching Ti3AlC2 by using HCl + LiF (HCl + LiF). The photo-thermal composite film is prepared by blending MXene and PVDF, the influence of introduction of MXene on the hydrophilic-hydrophobic property and photo-thermal conversion performance of the MXene / PVDF composite film is explored, MXene has good photo-thermal conversion performance and hydrophilicity, PVDF as a common film material has hydrophobicity, and the MXene / PVDF composite film has good photothermal conversion performance and hydrophilicity. And the two are combined, so that the composite film can automatically float on the water surface for interface photothermal conversion while absorbing water. The MXene / PVDF composite film is prepared by adopting a blade coating method, so that the whole process is relatively simple, the film structure characterization and the film performance test are convenient to carry out, and a theoretical and practical basis is provided for the subsequent construction and application of a seawater evaporator.

The invention discloses a biochar / carbon nanotube / myristic acid composite phase change material as well as a preparation method and application thereof, and belongs to the technical field of heat storage. The meat biochar / carbon nanotube / myristic acid composite phase change material is prepared by adopting a vacuum impregnation method. The original biochar is modified by KOH, so that the specific surface area and pore volume of a sample are increased, the specific surface area of the modified KBC3 reaches 813.56 m < 2 > / g, and the loading capacity of the KOH modified biochar on MA is increased to 63%. The result shows that the MA sample is successfully loaded into the porous material, and the structure is kept intact. In order to further improve the loading rate and the leakage resistance of the phase change material, carbon nanotubes are doped in the KBC / MA phase change material, and when the loading rate of MA is improved to 75%, KBC1.5 / MA severely leaks in a shape stability performance experiment, and the mass loss rate reaches 8.5%. And KBC1.5 / CNT1 / MA only has little leakage in the thermal stability test process, so that the leakage resistance of the composite phase change material is greatly enhanced. Through BC modification and CNTs introduction, the heat conduction capability and the photothermal conversion capability of the composite PCMs are greatly improved.

The invention discloses a high-entropy alloy nanoparticle as well as application and a preparation method thereof, and belongs to the technical field of mature biological membrane removal. The high-entropy alloy nanoparticles comprise the following raw materials: metal powder Fe, Ni, Mn, Nb, Cu and Ag; wherein the molar ratio of Fe to Ni to Mn is 1: 1: 1; the molar ratio of Nb to Fe is x, the molar ratio of Cu to Fe is y, the molar ratio of Ag to Fe is z, x is larger than or equal to 1.0 and smaller than or equal to 12.0, y is larger than or equal to 0.5 and smaller than or equal to 1.5, and z is larger than or equal to 0.05 and smaller than or equal to 0.25. According to the high-entropy alloy nano-particles, the biological membrane removal effect is further enhanced through component regulation and control, and the high-entropy alloy nano-particles have excellent photothermal conversion capacity under sunlight irradiation, so that the biological membrane removal performance is more excellent; and an efficient and long-term stable biofilm removal effect can be realized by using a very small amount of high-entropy alloy nanoparticles.

The invention relates to a spinel type high-entropy oxide photo-thermal super-hydrophobic anti-icing coating. The anti-icing coating is prepared from the following raw materials in parts by weight: 10 to 20 parts of spinel type high-entropy oxide, 20 to 40 parts of epoxy resin, 1 to 5 parts of stearic acid solution, 1 to 5 parts of polymethyl methacrylate solution, 5 to 10 parts of polydimethylsiloxane, 0.1 to 1 part of flatting agent, 0.1 to 1 part of dispersing agent, 0.1 to 1 part of defoaming agent, 0.5 to 1 part of curing agent and 30 to 60 parts of solvent. The spinel type high-entropy oxide is a powder material with the particle size of 50-600 nm, and the molecular formula of the spinel type high-entropy oxide is (A) 3O4. Meanwhile, the invention further discloses a preparation method of the coating. A coating prepared from the coating disclosed by the invention realizes coupling characteristics of photothermal conversion and super-hydrophobicity, not only has excellent super-hydrophobicity and light absorption characteristics, but also has good performance stability and durability in corrosion and wear environments.

The invention provides a composite phase change energy storage material taking geopolymer (geopolymer) microspheres prepared from spodumene lithium extraction tailings (lithium slag) as a carrier and a preparation method of the composite phase change energy storage material, the geopolymer microspheres are prepared by a dispersion suspension method, and after the geopolymer microspheres are rinsed, dried and calcined, the composite phase change energy storage material is prepared by heating and vacuum impregnation. The phase change energy storage material is stably encapsulated in the geopolymer microspheres, so that the shaped composite phase change energy storage material is obtained. The invention not only provides a phase change energy storage material with large heat storage capacity, excellent packaging performance, good chemical stability, strong leakage resistance, strong cycle stability, strong heat conduction capability and good photothermal conversion capability, but also provides a novel high-added-value utilization mode of spodumene lithium extraction tailings.

The invention discloses a super-hydrophobic road ice-inhibiting coating based on a photothermal effect and nano modified particles and a preparation method of the super-hydrophobic road ice-inhibiting coating. The preparation method comprises the following steps: introducing silane modified nano silicon dioxide (SiO2) and titanium dioxide (TiO2) particles into a polyaniline solution, and preparing the composite super-hydrophobic powder through a chemical oxidation polymerization method. The preparation method comprises the following steps: firstly, modifying the surfaces of SiO2 and TiO2 nanoparticles by adopting a silane coupling agent, and endowing the SiO2 and TiO2 nanoparticles with low surface energy and hydrophobic property; and then adding the modified nano-particles into an aniline monomer solution, reacting with doped acid and an oxidizing agent, so that polyaniline molecules are subjected to in-situ polymerization on the surfaces of the particles, and the composite super-hydrophobic powder with a micro-nano structure is formed. The obtained composite material has excellent photothermal conversion performance and super-hydrophobic performance at the same time, and the efficient photothermal material heat absorption ice melting effect and the synergistic ice restraining effect of the photothermal material and the super-hydrophobic material can be achieved. Compared with a traditional ice-inhibiting coating, the coating disclosed by the invention shows stronger ice-resisting capability in a low-temperature and high-humidity environment, has good durability, mechanical stability and environmental protection property, and is suitable for the field of ice prevention and ice inhibition in cold regions such as roads, bridges, airport runways and the like.

The invention discloses polyelectrolyte carbon-based hydrogel as well as a preparation method and application thereof. The polyelectrolyte carbon-based hydrogel has an ordered orientation three-dimensional porous network structure formed by crosslinking of water-soluble gel, polyelectrolyte and nanocarbon. The preparation method comprises the following steps: uniformly mixing water-soluble gel, water and a nano carbon material to obtain a first mixed solution; uniformly mixing polyelectrolyte with the first mixed solution to obtain a second mixed solution, and adjusting the pH value; mixing the second mixed solution and a cross-linking agent, and performing directional freezing casting to obtain frozen nano composite gel; and performing freeze drying on the frozen nano carbon composite gel to obtain polyelectrolyte carbon-based aerogel, and soaking the polyelectrolyte carbon-based aerogel in water to obtain the polyelectrolyte carbon-based hydrogel. The porous structure of the hydrogel is effectively regulated and controlled in the directional freezing casting process through the polyelectrolyte, and the polyelectrolyte carbon-based hydrogel has a small-pore hierarchical pore structure, has high photo-thermal conversion and light absorption capacity and can be applied to the field of photo-thermal water evaporation purification.

The invention discloses a carbon fiber-based solar photo-thermal conversion material as well as a preparation method and application thereof, relates to the technical field of solar photo-thermal conversion materials, and solves the problems of poor mechanical performance and photo-thermal conversion performance of an existing photo-thermal conversion material. The preparation method comprises the following steps: thermally mixing a polyvinyl alcohol sodium alginate mixed solution, a graphene oxide solution and a cross-linking agent aqueous solution to prepare a cross-linking precursor solution; the preparation method comprises the following steps: by taking a carbon felt as a substrate, injecting a crosslinking precursor solution into the substrate by utilizing a vacuum infusion process, infiltrating the carbon felt, performing aging crosslinking, and then performing directional freeze drying to obtain a modified carbon felt; preparing an electroplating solution by using copper sulfate, sodium potassium tartrate tetrahydrate, disodium hydrogen phosphate and formaldehyde, adjusting the pH value by using NaOH, growing copper on the surface of the modified carbon felt by using an electroplating process, and carrying out vacuum drying; and putting the modified carbon felt subjected to vacuum drying after electroplating into a tubular furnace to obtain the carbon fiber-based solar photothermal conversion material. The method has a wide application prospect in the field of seawater evaporation desalination.

The invention discloses a solar interface evaporator and a preparation method and application thereof. The evaporator comprises a porous cellulose supporting layer and a photo-thermal composite hydrogel layer loaded on the cellulose supporting layer, and the porous cellulose supporting layer and the photo-thermal composite hydrogel layer are combined in a gel in-situ cross-linking mode to form an integrated composite structure. The photo-thermal composite hydrogel layer is composite hydrogel formed by cross-linking polyvinyl alcohol, chitosan quaternary ammonium salt and carbon black. The preparation method comprises the following steps: adding polyvinyl alcohol and chitosan quaternary ammonium salt into a solvent to form a transparent mixed solution, adding the carbon-based photothermal conversion material, and continuously heating and stirring to prepare a hydrogel precursor solution; then adding glutaraldehyde and hydrochloric acid, and carrying out cross-linking reaction to form a hydrogel system; and immersing the cellulose sponge, standing, circularly and alternately freezing and unfreezing, and finally freeze-drying to obtain the product. The evaporator disclosed by the invention integrates highlight absorption, high heat utilization, water transportation, salt resistance and antibiosis, can realize large-scale production, and is suitable for scenes such as seawater desalination, sewage purification and emergency water supply.

The invention relates to the technical field of novel energy materials, in particular to a photo-thermal driving shape memory type heat storage and temperature regulation phase change material and a preparation method and application thereof, and the photo-thermal driving shape memory type heat storage and temperature regulation phase change material comprises a polyurethane phase change material and a photo-thermal conversion material; the polyurethane phase change material is prepared from polyether type polyol, polyester type polyol, isocyanate and small molecule polyol; wherein the molar ratio of the polyether type polyol to the polyester type polyol is 1: (1 to 1000), and the molecular weight of the polyether type polyol is 10000 to 900000; the photothermal conversion material comprises one or more of carbon-based materials such as graphene, graphene oxide and a carbon nano tube. The phase change material has the advantages of high enthalpy value, high strength, photothermal conversion performance, good flexibility and reversible shape memorability, simple preparation method and low cost, and can be widely used in the fields of artificial muscle fibers, heat storage and temperature regulation intelligent textiles, heat management and the like.

The invention relates to a method for synchronously removing antibiotic drug-resistant bacteria and drug-resistant genes by combining sunlight-driven interface heat and Fenton-like oxidation, which comprises the following steps of: putting a photothermal film loaded with a carbon black composite photothermal material into a photothermal disinfection reactor, introducing antibiotic drug-resistant bacteria wastewater, adding H2O2, turning on a xenon lamp light source, preheating the photothermal film, and carrying out photothermal disinfection on the photothermal film to remove the antibiotic drug-resistant bacteria and the drug-resistant genes. The photothermal disinfection reactor is sealed, the wastewater is treated through the photothermal film under the action of gravity, the photothermal conversion material absorbs optical radiation and converts the optical radiation into thermal radiation, and antibiotic-resistant bacteria are treated through the high-temperature interface heat effect generated on the photothermal film. The high-temperature interface heat can cause local temperature rise of a bacterial cell membrane structure, so that fatty acid chains in a bacterial membrane lipid bilayer are broken to a certain extent, the permeability of the cell membrane is increased, the structure of a bacterial outer membrane is damaged due to caused physical damage, the permeability of the bacterial membrane is increased, and the integrity of the membrane is damaged.

The invention discloses a preparation method of a photocatalytic ferroelectric heterojunction with a photothermal-pyroelectric effect, which comprises the following steps: step 1, preparing carboxylated BaTiO3 nanoparticles (BaTiO3NPs), adding a carboxylic acid modified ferroelectric material and a metal salt solution into a mixed solution of H2O and ethanol, and stirring to obtain a mixed solution; wherein the ferroelectric material is BaTiO3NPs, and the metal salt is In (NO3) 3.4 H2O; 2, adding a mixed solution of ammonia water and an ethanol solution into the mixed solution, reacting in an oil bath at 80 DEG C for 30 minutes, carrying out centrifugal washing and drying to obtain BaTiO3 / In (OH) 3, and carrying out high-temperature calcination in a muffle furnace to obtain a BaTiO3 / In2O3 heterojunction; and step 3, grinding the obtained BaTiO3 / In2O3 and NaBH4 according to a ratio, uniformly mixing the obtained BaTiO3 / In2O3 and NaBH4, and roasting the obtained mixture in a tubular furnace in an argon atmosphere to obtain the black BaTiO3 / B-In2O3 heterojunction. A semiconductor material with photo-thermal conversion performance is combined with a pyroelectric material, so that the prepared heterojunction has relatively high photocatalytic reduction activity, and the catalytic efficiency is improved.

The invention discloses a method for degrading antibiotics in wastewater based on chitosan aerogel. The method comprises the following steps: adding chitosan aerogel Co-PBA / CS and potassium hydrogen peroxymonosulfate into the antibiotic-containing wastewater, and degrading under stirring. The method provided by the invention has a ciprofloxacin degradation capability of 94.7%. In addition, the material also has excellent self-cleaning and photo-thermal conversion performance, and can realize surface cleaning. The multifunctional aerogel provides a new strategy for removing pollutants such as ciprofloxacin in a complex and severe water environment.

The invention relates to the technical field of solar power generation, in particular to a photovoltaic and photo-thermal coupling system and a preparation method and application thereof.The photovoltaic and photo-thermal coupling system comprises a semitransparent photovoltaic cell, a photo-thermal reflector, a photo-thermal heat collection unit and a coupling support; the semitransparent photovoltaic cell is fixedly arranged above the photo-thermal reflecting mirror through the coupling support, and the photo-thermal heat collection unit is arranged above the semitransparent photovoltaic cell and is connected with the photo-thermal reflecting mirror through the coupling support. According to the photovoltaic and photo-thermal coupling system, the advantages of photovoltaic power generation and photo-thermal conversion are combined, the utilization efficiency of solar energy is remarkably improved, and multifunctional integration is achieved.

The invention belongs to the technical field of sewage treatment, and particularly discloses a treatment method and device for degrading tetracycline antibiotics in wastewater based on solar energy. The photo-thermal continuous flow reactor comprises a copper heat exchanger, the surface of the copper heat exchanger is sequentially coated with a heat conduction material and a photo-thermal conversion material from inside to outside, and the copper heat exchanger is provided with a water inlet and a water outlet. The treatment method for degrading the tetracycline antibiotics in the wastewater utilizes a photo-thermal continuous flow reactor for treatment, and comprises the following steps: adding an oxidizing agent into the wastewater containing the tetracycline antibiotics, and then introducing the wastewater into a copper heat exchanger from a water inlet; the copper heat exchanger is illuminated for degradation treatment; finally, the degraded wastewater is discharged through a water outlet. According to the method, the tetracycline antibiotics are converted into copper complexes of the tetracycline antibiotics, so that not only is the dependence on temperature reduced, but also the degradation efficiency is improved, and the tetracycline antibiotics in the wastewater are degraded by continuous flow based on solar energy.

The invention provides a photo-thermal material based on RE-MOF, a photo-thermal interface evaporator and a preparation method and application of the photo-thermal material. The photo-thermal material based on the RE-MOF comprises a two-dimensional nanosheet-shaped rare earth MOF material and a polydopamine coating layer on the surface of the rare earth MOF material. According to the photo-thermal material based on RE-MOF, the rare earth MOF material is coated with polydopamine, so that the photo-thermal material has high light absorption capacity and hydrothermal stability, the evaporation efficiency and photo-thermal conversion capacity of a photo-thermal interface evaporator can be effectively improved, the photo-thermal conversion capacity of the photo-thermal interface evaporator can be effectively improved when the photo-thermal material is applied to the photo-thermal interface evaporator, and the photo-thermal efficiency of the photo-thermal interface evaporator is improved. The photo-thermal interface evaporator which is high in sunlight absorption capacity, stable in performance structure, high in photo-thermal conversion efficiency and good in salt tolerance can be obtained.

The invention discloses a targeted nano delivery system based on curcumin (Cur) and near-infrared aggregation-induced emission (AIE) molecule BDTA and application of the targeted nano delivery system in treatment of glioblastoma (GBM), and belongs to the field of biomedicine. The nano platform is composed of nanoparticles (MPMs (at) Cur-BDTA NPs) modified by a macrophage membrane, curcumin and BDTA are combined by adopting a coprecipitation method, and the targeting property of the nano platform to tumors is enhanced through modification of the macrophage membrane. The nanometer platform combines the functions of photo-thermal therapy (PTT), photodynamic therapy (PDT) and chemotherapy, and can achieve multiple treatment effects. The curcumin improves PTT sensitivity by down-regulating expression of heat shock protein HSP-70 in the platform, and effectively improves photothermal conversion efficiency (87.6%) and singlet oxygen generation amount (1.7 times higher than that of a control group) through a Foster resonance energy transfer (FRET) mechanism. In a glioblastoma in-vitro experiment, the nano platform shows a synergistic treatment effect of photo-thermal, photodynamic and chemotherapy. The invention provides an intelligent treatment platform integrating photo-thermal treatment, photodynamic treatment and chemotherapy, and provides an efficient and safe innovative treatment strategy for precise treatment of glioblastoma.

The invention discloses a copper ion carrier material with a photothermal effect, a preparation method and an anti-cancer drug formed by the copper ion carrier material, and belongs to the technical field of nano drug loading technologies, and the structural formula of the copper ion carrier material is as follows: # imgabs0 #. The preparation method comprises the following steps: S1, mixing butanedione and concentrated hydrochloric acid in water, stirring and reacting, adding 4-methyl thiosemicarbazide, continuously stirring and reacting, and performing post-treatment to obtain a compound (4); then dissolving the compound (3) and 4, 4-dimethyl thiourea in a DMSO solvent, dropwise adding glacial acetic acid for reaction, and performing post-treatment to obtain a compound (6); dissolving the compound (6) and 6-aminocaproic acid in an acetonitrile solvent, reacting, and performing post-treatment to obtain a compound (8); and dissolving the compound (8) and beta-cyclodextrin in a DMSO solvent, mixing, adding an activating agent and a condensing agent, reacting, and performing post-treatment to obtain the copper ion carrier material with the photothermal effect. The problems that a copper ion carrier is poor in water solubility, low in photothermal conversion efficiency and low in near-infrared light energy, ultraviolet light is not prone to penetrating into tissues, and tissue damage can be caused are solved.

The invention discloses an aggregation-induced emission fluorescent compound with near infrared (NIR) luminescence. The fluorescent compound is wrapped by a polymer matrix to form a nano aggregate, which proves that the fluorescent compound shows excellent photothermal conversion efficiency while maintaining high fluorescence quantum yield. Therefore, compared with the mode of relying on high permeability and retention (EPR) effect, the nanometer aggregate accumulation guided by the photo-induced thermoacoustic effect (PTA) can further improve the photo-thermal treatment effect. In-vitro and in-vivo verification further confirms that the nano-aggregate shows excellent fluorescence-guided optical diagnosis and treatment capability in the aspect of tumor elimination.

The invention discloses a preparation method of a salt-resistant double-layer photo-thermal aerogel evaporator. The preparation method comprises the following steps: S1, cutting and cleaning foamed nickel, and then carrying out vacuum drying; s2, preparing Cu2O / NF (nickel nitrate); s3, preparing ppy-Cu2O / NF (nickel fluoride); s4, preparing hydrogel; and S5, flatly placing a sample ppy-Cu2O / NF on the top surface of the hydrogel, continuing to stand for gelling, enabling the photo-thermal layer and the bottom layer hydrogel to be fully combined, pre-freezing, transferring into a freeze dryer, and freeze-drying to finally obtain the salt-tolerant double-layer photo-thermal aerogel evaporator, namely the lightweight porous aerogel material ppy-Cu2O / NF / FCP with the double-layer structure. The device has the advantages that the high-level evaporation rate and efficient energy conversion are achieved, and efficient photo-thermal conversion and heat management are achieved through the double-layer structure design.