779 results about "Light response" patented technology

The invention discloses a p-type or n-type COF film, the film thickness is 50 nm to 5 m, the aperture is 0.7 nm to 4 nm, and the film has a regular pore channel structure and light response performance. According to the invention, proper monomers are selected, and liquid-solid interface polymerization reaction is carried out, so that COF membranes grow along the tube wall, and p-type and n-type COF membranes are respectively prepared. The growth direction of the film is inconsistent with the transmission direction of the monomer and the catalyst, and the process can effectively promote the dissolution growth and self-repair of the COF film, so that the crystallinity and stacking orientation of the film are improved, and the structural characteristics of the COF film are optimized. The obtained COF film has a remarkable advantage of light-driven ion pump performance. The obtained COF membrane is used for preparing a desalting device.

The invention discloses a regional GPP assimilation inversion system fusing foundation-multi-source satellite chlorophyll fluorescence, and belongs to the technical field of terrestrial ecosystem carbon cycle monitoring. The signal unmixing and simulation generation module is used for unmixing the total fluorescence of the mixed pixels into pure chlorophyll fluorescence (SIF) and driving an ecological model to generate SIF and GPP simulation values based on environmental stress data; the state component decoupling module is used for decoupling the total GPP analog value into a light response fast component, a light response slow component and a light response memory component; the state evolution prediction module is used for predicting dynamic evolution of the slow component and the memory component; and the self-adaptive assimilation inversion module is used for performing inversion on the region GPP by taking the slow component and the memory component as state variables, taking the SIF observation value as observation data and combining a prediction result of the state evolution prediction module. According to the method, systematic deviation caused by model simplification or data singleness in a traditional method is overcome.

A photobase generator includes a compound including: first skeletons represented by the following formula (a); and a second skeleton including nitrogen atoms bonding to bonding positions of the first skeletons to form amide groups, wherein, in a molecule, a number of the first skeletons is two or more, a number of the nitrogen atoms, configuring the amide groups, in the second skeleton is the same as the number of the first skeletons, and at least one of the nitrogen atoms configuring the amide groups is converted into a nitrogen atom configuring a secondary amine or a tertiary amine by light irradiation. In the formula (a), G is a divalent aromatic group, and * represents the bonding position with the nitrogen atom.

The invention provides a wafer production method and system based on image segmentation, and relates to the technical field of wafer production, and the method comprises the steps: constructing a multi-region time-space thermal response matrix through image segmentation, and automatically determining an optimal temperature disturbance quantity in combination with a thermal diffusion equation, thereby achieving the precise marking of a thermal diffusion abnormal region; then multi-wavelength measuring light is applied to the marked area, the light intensity is dynamically corrected, and the recognition sensitivity of different depth and morphology defects is enhanced; micro-vibration and light response data are introduced, a pre-training defect prediction model is utilized to extract multi-modal features, and a preliminary defect index is generated; and finally, multiplication correction is performed by adopting the polarization degree of the polarization structured light and the phase delay, so that a real defect signal can be amplified, noise interference can be suppressed, the detection accuracy, discrimination and robustness are remarkably improved, and the production quality of wafers is improved.

The invention relates to the technical field of transmission membranes, in particular to a transmission membrane based on dithienylethene and a preparation method of the transmission membrane. The transmission film comprises a base film and light-operated molecules, the base film is coated with the light-operated molecules, and the light-operated molecules have light response groups. A detection result shows that after ultraviolet irradiation, the transmission film can quickly realize complete conversion from an open loop to a closed loop; after visible light irradiation is recovered, the transmission film can efficiently and reversibly recover to an open-loop state. In addition, the transport membrane has a high on-off ratio to five ions of sodium, potassium, lithium, magnesium and calcium. The transmission membrane based on dithienylethene, which is prepared by taking terminal amino-modified dithienylethene as a basic unit, not only has abundant nano-channels, but also is endowed with the characteristic of regulating and controlling the opening and closing of the nano-pore by a photoresponse functional group, and the closing and opening of an ion channel can be accurately regulated and controlled through the alternate irradiation of ultraviolet light and visible light, so that the transmission membrane has a good application prospect. And the controllability of light-operated ion transmission is finally realized.

The invention provides application of a silver-bismuth tungstate catalyst in preparation of methanol from light-driven CO2, and belongs to the technical field of CO2 conversion and reduction. Bismuth tungstate nanosheets, silver salt and water are mixed, the size of silver particles is controlled by adjusting the pH value, the silver-bismuth tungstate catalyst is obtained, and the size of the silver particles is 20-50 nm; silver is evenly distributed on the surface of bismuth tungstate, the obtained silver-bismuth tungstate catalyst is large in specific surface area and high in light response capacity, the silver-bismuth tungstate catalyst can generate a large number of high-energy hot electrons during illumination, in-situ photo-thermal conversion is achieved, no external heat source is needed for heat supply, the photo-thermal effect is enhanced, CO2 conversion is promoted, and the methanol yield is increased.

The invention discloses a composite film based on light-biological synergistic gradient degradation and a preparation method thereof, the composite film sequentially comprises a light response layer, a transition layer and a biological response layer from outside to inside, and the light response layer comprises a polycaprolactone matrix, a tetraphenylporphyrin iron photosensitizer and anatase type TiO2 nanorods; the transition layer is a gradient blend of polylactic acid and modified starch; the biological response layer comprises polyhydroxyalkanoate and bacterial cellulose nanofibers; through the design of the three-layer gradient structure and the construction of the bionic microchannel, the synergistic effect of light degradation, hydrolysis and biodegradation is realized; the composite membrane has excellent mechanical properties and environmental adaptability, the degradation period can be accurately regulated and controlled within 30-180 days, and the soil degradation rate within 60 days reaches 91% or above; the preparation method comprises the processes of electrostatic spinning, gradient co-extrusion and bacterial cellulose in-situ culture. The material can be widely applied to the fields of agricultural mulching films, food packaging and the like, and the problems that a traditional degradable film is poor in mechanical property and uncontrollable in degradation are solved.

The invention provides a multiband photoresponse nerve synapse device based on a two-dimensional and organic heterostructure, an array and application, and belongs to the technical field of organic electric solid-state devices. The device provided by the invention adopts a three-end bottom gate top contact structure and comprises a gate substrate, an insulating layer, a channel layer and a source / drain electrode, and the channel layer forms an II-type heterojunction by a two-dimensional semiconductor material with a narrow-band gap characteristic and an organic semiconductor material. The heterostructure realizes ultraviolet to far infrared (365nm-10 [mu] m) multiband photoelectric response, and shows synaptic plasticity under light pulse modulation, including short-term enhancement, long-term enhancement and learning-forgetting-re-learning characteristics. Large-area array preparation of the device can be realized through methods such as chemical vapor deposition, solution spin coating, jet printing or layer-by-layer self-assembly. The technology not only can be used for brain-like learning and memory simulation, but also can be applied to the fields of sensing and memory integrated intelligent systems, optical neural networks, artificial vision, multi-mode intelligent sensing and the like.

The invention provides an application of WNT7B in construction of a myopia animal model. Homologous genes wnt7ba and wnt7bb of the WNT7B in the zebra fish are knocked out or knocked down by applying a CRISPR / Cas9 gene editing technology, an animal model of which the eye axis length is remarkably increased, the eyeball movement frequency is remarkably reduced and the light response is reduced is obtained, and the result shows that the WNT7B is related to the high myopia. The model provides a favorable tool for pathogenesis and drug screening of high myopia, and has a good application prospect.

The invention provides a wafer film tearing process based on ultraviolet viscosity control. The wafer film tearing process based on ultraviolet viscosity control comprises the steps that a, a wafer is selected and prepared, the surface of the wafer is coated with a layer of photosensitive viscous material suitable for ultraviolet irradiation, and the photosensitive material is a thin film layer with high photosensitivity and good photoreaction control capacity; and the ultraviolet light source is accurately adjusted to ensure that the intensity of the ultraviolet light is uniformly distributed in a relatively large range. According to the wafer film tearing process based on ultraviolet viscosity control, by optimizing ultraviolet irradiation conditions, the problem of limited ultraviolet penetrating power is solved, it is ensured that ultraviolet can effectively penetrate through a thick film layer, and uniform photosensitive material reaction is achieved. By means of the improvement, it can be ensured that the film layer separation effect in the film tearing process is more uniform, the film tearing effect difference caused by uneven ultraviolet light penetration in a traditional method is avoided, and the consistency and reliability of the technology are improved.

The invention relates to the technical field of electronic devices, in particular to a single-molecule photoelectric memristor based on photoresponse rotating shaft molecules and a preparation method of the single-molecule photoelectric memristor. The single-molecule electric memristor comprises a light response rotating shaft molecule and a graphene point electrode pair, and the light response rotating shaft molecule is connected between the graphene point electrode pair. When ultraviolet light irradiates the photoresponse rotating shaft molecule, a high conductivity state occurs when the corresponding rotating shaft molecule rotates, and when visible light irradiates the photoresponse rotating shaft molecule, a low conductivity state occurs when the corresponding rotating shaft molecule rotates. Based on this, the monomolecular photoelectric memristor has high and low conductivity bistable states, and can realize rapid and reversible change of the conductivity state, thereby improving response speed, operation efficiency, and stability, flexibility and adaptability of performance. The single-molecule photoelectric memristor provided by the invention is expected to be widely applied to the fields of neuromorphic calculation, artificial intelligence, brain-like calculation and the like. The preparation method provided by the invention is simple and convenient to operate, mild in reaction condition and beneficial to industrial production.

The invention relates to a near-infrared light response in-situ gelling and synergistic photo-thermal-photodynamic gel delivery system and a preparation method and application thereof, a mesoporous silicon coated up-conversion nano-carrier and an efficient photosensitizer are compounded to form a photo-response core unit, and then the photo-response core unit is intelligently integrated with photo-curing hydrogel to form the near-infrared light response in-situ gelling and synergistic photo-thermal-photodynamic gel delivery system. The general problem of aggregation and quenching of photosensitive molecules is relieved by utilizing the unique space confinement effect of the mesoporous structure, the ICG photo-thermal efficiency and photodynamic performance are enhanced, under precise excitation of a near-infrared light source, the system can activate a photo-crosslinking reaction through an up-conversion luminescence process, in-situ conversion from a liquid eye drop preparation to a stable gel state is achieved, and the stability of the eye drop preparation is improved. A lasting drug reservoir is formed on the surface of the cornea; synchronously excited photodynamic and photo-thermal dual-mode treatment generates a remarkable synergistic antibacterial effect, and shows an excellent removal capability on pathogens including highly drug-resistant bacteria; meanwhile, an ideal microenvironment is created for tissue repair through high biocompatibility and a stable mechanical matrix, and integrity recovery of cornea structures and functions is promoted.

The invention relates to an energy storage type photo-generated cathode protection coating material and a preparation method thereof, and belongs to the technical field of chemical materials. The coating material is a binary composite material which is composed of nanometer MoO3 and BiVO4. The preparation method comprises the following steps: firstly, preparing nano MoO3 by a precipitation method, and then preparing a nano MoO3 and BiVO4 binary composite material in situ by a low-temperature hydrothermal method, namely the coating material disclosed by the invention. In the coating material, nano MoO3 and BiVO4 are adopted to form a heterojunction material, so that the photoresponse range of BiVO4 is widened, and the photoelectron-hole separation efficiency is effectively improved; meanwhile, nano MoO3 is used as an energy storage material with high theoretical specific capacity, part of photo-induced electrons generated by BiVO4 can be stored in the form of a compound, and in a dark state environment, the electrons stored in MoO3 are released and quickly transferred to the surface of metal or a film-forming substrate, so that cathode protection of the metal in the dark environment is realized; the technical problems that in the prior art, nano BiVO4 is low in electron-hole separation efficiency and poor in metal surface adhesive force, and the cathode protection effect cannot be continued in the dark state are solved.

Hexavalent chromium (Cr (VI)) is widely applied to the industries of electroplating, spinning, leather tanning and chromium product manufacturing, and Cr (VI)-containing sewage has very strong biotoxicity and mutagenicity. Therefore, effective removal of Cr (VI) in industrial wastewater has important significance for protecting ecological environment and human health. As a novel bismuth-based oxychloride photocatalyst, the Bi4NbO8Cl material with the Aurivillius-Sillen structure has the advantages that the unique layered molecular structure of the Bi4NbO8Cl material is beneficial to the separation of photon-generated carriers, and the Bi4NbO8Cl material has good photocatalytic performance. On the basis of a Bi4NbO8Cl visible light response photocatalyst, the concentration of a glucose solution is regulated and controlled, carbon shell layers with different thicknesses are loaded, meanwhile, oxygen vacancy defects with different concentrations are formed, the visible light response Bi4NbO8Cl (at) C composite photocatalyst is obtained, and a good effect is achieved when the visible light response Bi4NbO8Cl (at) C composite photocatalyst is used for treating Cr (VI)-containing wastewater under the acidic condition.

The invention relates to the technical field of ceramic products, and discloses an antibacterial ceramic product and a preparation method thereof.The antibacterial ceramic product comprises a ceramic matrix, an antibacterial glaze layer applied to the surface of the matrix and a chitosan-titanium dioxide composite sol film coated on the glaze layer, and zirconium phosphate serves as a carrier; the metal ion effect and the chitosan-titanium dioxide composite film are synergistically compounded under the photocatalysis effect, the prepared composite antibacterial and self-cleaning ceramic material realizes the double-effect synergy of'rapid film breaking-continuous sterilization ', chitosan is carbonized in situ to form a nitrogen-doped carbon layer, visible light response is expanded, a Si-O-C chemical bonding interface is constructed, and the composite antibacterial and self-cleaning ceramic material is prepared. The three technical bottlenecks that a ceramic product is weak in antibacterial property in a dark environment, the visible light utilization rate is low and a coating film is easy to fall off are broken through, and the antibacterial function with a self-cleaning function is provided.

The invention relates to the technical field of biological materials, in particular to a pillararene-based photoresponse MOF-based ion gating nanochannel and a preparation method thereof. According to the pillararene-based photoresponse MOF-based ion gating nano-channel, a bullet-shaped nano-channel is prepared by taking PET (Polyethylene Terephthalate) as a substrate, and the substrate can provide structural support; p5A-MOF-1 based on pillararene is used as a core functional layer, and the core functional layer can provide a stable cavity environment; a P5A-MOF-1 cavity is filled with an organic aromatic azo compound, so that the light response structure change is realized. And the effective volume of the P5A-MOF-1 cavity is regulated and controlled through the photoisomerization effect of the azo group, so that precise gating of ion transmission is achieved. The preparation method provided by the invention is simple and convenient to operate, mild and controllable in condition and beneficial to large-scale production.

The invention relates to a preparation method of a lead selenide room-temperature medium-wave infrared detector, which comprises the following steps of: (1) depositing a lead selenide film layer on a substrate by adopting a magnetron sputtering technology and taking oxygen as reaction gas; (2) placing the lead selenide film in a horizontal tube furnace, and realizing high-temperature oxidation in normal-pressure pure oxygen; and (3) putting the lead selenide film into a vertical tube furnace, and realizing high-temperature iodination in a normal-pressure environment. The lead selenide thin film is prepared through the magnetron sputtering technology, compared with chemical bath deposition, the quality of the thin film is effectively improved, and large-area and high-uniformity thin film preparation is achieved; the magnetron sputtering film is subjected to high-temperature oxidation-iodination treatment, the magnetron sputtering film has excellent photoresponse to infrared light, and the sensitization technology is specific and clear and good in repeatability; the sensitized lead selenide thin film layer and the top electrode form the photoconductive detector, the specific detection rate of the device is 7.6 * 10 < 9 > Jones at 4.3 microns at the room temperature of a medium-wave infrared band, and the performance is excellent.

The invention discloses an image sensor and a manufacturing method thereof, and belongs to the technical field of semiconductors. The image sensor comprises a substrate which is divided into a plurality of active regions by a shallow trench isolation structure; the photodiode, the charge storage region and the floating diffusion region are arranged in the substrate at intervals; the global transmission grid is arranged between the photodiode and the charge storage region and comprises a first branch arranged on the active region and a second branch arranged on the shallow trench isolation structure; the transfer gate is arranged between the charge storage region and the floating diffusion region and comprises a first gate arranged on the active region and a second gate arranged on the shallow trench isolation structure; the first mask layer is arranged on the global transmission gate and the transfer gate, and the second mask layer is arranged on the first mask layer on the first branch and the first gate; the shading structure covers the first subsection, the charge storage area and part of the transfer grid electrode. According to the image sensor and the manufacturing method thereof, the parasitic light response is improved, and the manufacturing yield is improved.

The invention relates to the field of packaging detection, in particular to a full-color Micro LED micro display module packaging detection method, device and equipment, and the method comprises the following steps: carrying out pixel-level thermal induction on a micro display module to be detected, collecting global pixel thermal induction self-luminous response parameters, carrying out instantaneous light response analysis, and generating an instantaneous light response curvature; multi-time-point response trend analysis is carried out based on the instantaneous light response curvature, global pixel thermal disturbance coupling evolution is carried out, and a pixel thermal disturbance response map is constructed; performing inter-pixel multi-dimensional response difference calculation and abnormal deviation region positioning according to the pixel thermal disturbance response map, and extracting an abnormal deviation display module region; performing spatial arrangement inversion on the abnormal deviation display module area to generate actual pixel point coordinates of the abnormal area; according to the method, error compensation is carried out on the offset pixels through precise and efficient huge transfer error analysis, and the packaging precision and reliability control level of the micro-display module are enhanced.

The invention relates to the technical field of high polymer materials, in particular to a low-viscosity self-curing polyurethane acrylate composition and a preparation method thereof.The low-viscosity self-curing polyurethane acrylate composition is prepared from, by mass, (a) 50-80 parts of polyurethane acrylate prepolymer; (b) 1-10 parts of functional particles; (c) 10-30 parts of a reactive diluent; (d) 0.1-2 parts of a visible light initiator; (e) 0.1-2 parts of a leveling agent; and (f) 0.1-1 part of a deoxidizing auxiliary agent. According to the invention, light response is expanded to a visible light wave band, natural light can trigger free radical polymerization and disulfide bond oxidative cleavage through component and structural design to realize controllable release of water, the system viscosity of an acrylate group is further reduced to 1500mPa. S or below, and the adhesive property and weather resistance are better after curing.

The invention discloses a preparation method of a high-stability photoresponse covalent organic framework membrane and application of the high-stability photoresponse covalent organic framework membrane in selective separation of multiple components. 4-azido azobenzene is prepared by carrying out azido reaction on 4-aminoazobenzene in an acidic aqueous solution, and then a BPTA-TAPB-COF membrane is used as a matrix to prepare the high-stability photoresponse covalent organic framework membrane. 4-azido azobenzene is efficiently grafted to the pore wall of the BPTA-TAPB-COF membrane through a click chemical reaction, the photoresponse covalent organic framework membrane is constructed, and the covalent organic framework membrane can be used for multi-component selective separation and is suitable for multi-component systems with different sizes. The azobenzene group in the pore channel of the prepared Azo-COF membrane is subjected to reversible cis-trans isomerization under the irradiation of ultraviolet / visible light, the response speed is high, and the cycle performance is good; the Azo-COF membrane has good application in the light-operated nanofiltration process, the performance of the Azo-COF membrane is not reduced after the Azo-COF membrane is continuously recycled for 12 days, and the structure of the Azo-COF membrane is kept stable.

The invention relates to the technical field of intelligent materials and structural dynamics, solves the technical problems that an existing tumbler structure is lack of self-continuous motion ability and depends on external energy, and particularly relates to a light-driven liquid crystal elastomer tumbler and a nonlinear dynamics control method thereof. Self-continuous swinging under illumination of certain intensity is realized by utilizing light response design of the liquid crystal elastomer and coupling of nonlinear restoring force, and application is performed by utilizing regular movement of the liquid crystal elastomer. The tumbler structure can generate a state alternating process from swinging out of an illumination area to swinging back to the illumination area under the condition of specific light source intensity, and the change amplitude of standing and inclining alternation can be changed by adjusting illumination parameters. According to the tumbler structure, the limitation problem of a traditional tumbler can be solved, the tumbler structure can achieve self-continuous movement under the condition that the tumbler structure does not depend on external periodic stimulation, and the application of the tumbler structure is expanded.

A light-reactive gifting system includes, in one embodiment, an illumination device adapted to emit UV light, an ornamental attachment attached to or that forms at least a portion of the flat top of the illumination device, paper that includes a first light-reactive component that reacts to the UV light and is characterized by having a first visual appearance when not reflecting the UV light and a second visual appearance when reflecting the UV light, and an attachment mechanism that is useable to attach the illumination device to the paper thereby enabling the UV light to be cast in the direction of the paper and causing each of the first and second visual appearances based on activating or deactivating the UV LEDs.

The invention discloses an image sensor and a manufacturing method thereof, and belongs to the technical field of semiconductors. The photodiode is arranged in the substrate, and a first concave part is arranged in the photodiode; the deep trench isolation structure is arranged in the substrate, the deep trench isolation structure is located between the adjacent photodiodes, the deep trench isolation structure comprises a light-transmitting graphene layer, and the light-transmitting graphene layer is attached to the photodiodes; the first concave part is filled with a graphene layer to form the photoelectric response region, and the depth of the photoelectric response region is firstly increased and then decreased in the width direction of the photoelectric response region. According to the image sensor and the manufacturing method thereof provided by the invention, the light response range and efficiency of the image sensor can be improved.

The invention provides a super-smooth antifouling surface with photo-thermal self-repairing performance as well as a preparation method and application of the super-smooth antifouling surface. The super-lubricity antifouling surface comprises a light response substrate and a lubricating layer formed on the light response substrate. Wherein the photoresponse substrate can trigger the photothermal conversion performance under the irradiation of near-infrared light, so that the temperature of the super-lubricity antifouling surface is rapidly increased, polyethylene wax and C12-C16 long-chain alkane in the lubricating layer can be in a molten state, the position, with defects, of the surface of coastal or marine common mechanical equipment is filled up, and after cooling, the surface of the mechanical equipment is not damaged. And a self-repairing function is realized. Compared with the prior art, by compounding the polyethylene wax and the C12-C16 long-chain alkane, a novel solid-state phase-change super-smooth surface can be provided, the stability and the antifouling property of the super-smooth antifouling surface are remarkably improved, and the problem that the antifouling property fails due to the fact that a traditional liquid-state super-smooth surface lubricating layer is poor in shear resistance is remarkably solved.

The invention discloses a multi-morphology strontium titanate photocatalyst with near-infrared light response as well as a preparation method and hydrogen production application thereof, strontium titanate precursors with different morphologies are synthesized through a hydrothermal method, the strontium titanate precursors are subjected to heat treatment under a protective atmosphere, surface carbonization is realized, and the strontium titanate photocatalyst with near-infrared light response is obtained. The multi-morphology strontium titanate photocatalyst with near-infrared light response is obtained. By selecting different titanium sources and reaction conditions, strontium titanate with various morphologies such as mesoporous microspheres, cubic phases and dendrites can be directionally synthesized, and the requirements of different application scenes on catalyst structures are met. Defects and new energy levels are introduced on the surface of SrTiO3 through surface carbonization treatment, so that the light response range of the SrTiO3 is successfully expanded to a near-infrared region, near-infrared light can be efficiently utilized for water photolysis hydrogen production, and wide application prospects are achieved.

The invention discloses a bismuth oxyiodide modified oxygen-vacancy-enriched titanium dioxide nanotube array and a preparation method and application thereof, which realize wide-range and efficient light response efficiency: BiOI (forbidden bandwidth is approximately equal to 1.8 eV) is used as an excellent visible-light-driven photocatalyst and forms a semiconductor heterojunction with TNAs after being loaded, the spectral response range of the material is widened to a visible light wave band, and the visible-light-driven visible-light-driven photocatalyst can be used for preparing a visible-light-driven photocatalyst. And the construction of interface oxygen vacancies also improves the transmission efficiency of photon-generated carriers, so that the photocatalytic efficiency and the visible light utilization rate of the material are greatly improved. The material prepared by the invention can be used for a long time after being fixed in a reactor, and after the material is recycled for 20 times, the degradation rate of typical refractory organic matters in single 60 minutes can still be kept above 90%.

Methods and systems of PFAS destruction in water containing nitrate. The methods and systems include filtering water containing PFAS and nitrate through a membrane selective for PFAS to obtain a membrane reject containing PFAS and nitrate and a filtrate containing nitrate, forming a treatment solution using the membrane reject including diluting the membrane reject and combining the membrane reject with a photosensitizer, a sulfite salt, and a sufficient amount of base such that the treatment solution has a pH of about 10 or more, and irradiating the treatment solution with UV light in a photoreactor to destroy a portion of the PFAS. Before dilution, a concentration of PFAS in the membrane reject may be between about 3 times and about 20 times greater than before the filtering step. Dilution of the membrane reject may include between about a 3 and about a 20 times dilution.

The invention discloses a photoresponse biomass-based material for removing organic-inorganic combined pollution in water as well as a preparation method and application of the photoresponse biomass-based material. The preparation method specifically comprises the following steps: (1) designing a photosensitive functional monomer; (2) preparing a biomass macromolecular initiator; (3) preparing the photoresponse biomass adsorbent; and (4) preparing the photoresponse biomass-based intelligent material. The photoresponse biomass-based material prepared by the method is rich in raw material source, green and environment-friendly, can be used for adsorption of composite pollutants (such as heavy metal / organic matter composite pollution and the like) in the environment, and can simultaneously realize desorption of the pollutants, photocatalytic degradation of the pollutants and regeneration of an adsorbent under the illumination condition; the defects that the traditional adsorbent regeneration process is complicated, secondary pollution is easy to generate, the repeated utilization rate of the adsorbent is low and the like are effectively overcome, and wide application prospects are achieved.

According to the graphene quantum dot regulated bismuth oxybromide photocatalytic material as well as the preparation method and the application thereof provided by the invention, the two-dimensional photocatalytic material Bi24O31Br10 is combined with the GQDs with good conductivity to form a composite structure, so that the photocatalytic efficiency is remarkably improved. According to the structure, the specific surface area of the material is increased, more active sites are provided, and separation and transmission of photogenerated charges are promoted, so that the rate and efficiency of a photocatalytic reaction are improved. Due to the introduction of the GQDs, the GQDs / Bi24O31Br10 composite material can effectively utilize a visible light part in a solar spectrum, so that the light response range of a photocatalyst is expanded, and the photocatalyst can absorb light energy in a wider spectral range. The GQDs / Bi24O31Br10 composite material prepared by the invention is suitable for photocatalytic degradation of antibiotics such as norfloxacin and the like, and has a wide application prospect.