35results about How to "With photocatalytic effect" patented technology

The invention relates to a formaldehyde removal liquid added with a biological enzyme aid, and a preparation method thereof, and relates to the technical field of air purification, wherein the formaldehyde removal liquid comprises a photocatalyst, the photocatalyst comprises the following raw materials by weight: 30-34 parts of a photocatalysis agent, 6-10 parts of a nanometer fiber filler, 2-6 parts of aqueous acrylic polyurethane, 1-3 parts of an anionic surfactant, 1-3 parts of a titanate coupling agent, 6-10 parts of a dispersing agent and 80-84 parts of deionized water, and the photocatalysis agent comprises the following raw materials by weight: 10-20% of nanometer titanium dioxide, 10-20% of nanometer zinc oxide, 10-14% of aluminum sulfate, 1-5% of anhydrous sodium acetate, 6-10% ofa synergist and the balance of deionized water. According to the invention, by modifying the nanometer titanium dioxide and the nanometer zinc oxide, the dispersity of the nanometer titanium dioxideand the nanometer zinc oxide is improved, so that the formaldehyde purification efficiency and the formaldehyde purification effect of the photocatalyst are improved.

The invention discloses an antibacterial protective environment-friendly composite polymer material and a preparation method and application thereof, wherein the composite polymer material comprises the following components by weight: 20 parts to 30 parts of benzyl quaternary ammonium salt, 50 parts to 75 parts of a biocompatible high-molecular polymer, 15 parts to 30 parts of modified nano metaloxide, 10 parts to 20 parts of nano metal particles, 30 parts to 40 parts of modified fiber, 25 parts to 45 parts of trisilanol ethyl ester silsesquioxane, 5 parts to 10 parts of a silane coupling agent, 3 parts to 5 parts of ammonium persulfate, 3 parts to 5 parts of dimethyl carbonate, 8 parts to 15 parts of 3-mercaptopropyl trimethoxy silane, and 2 parts to 3 parts of allyl glycidyl ether. Thematerial is capable of blocking and self-cleaning apatter or air with viruses, bacteria or microorganisms, is antibacterial, capable of killing viruses, capable of being repeatedly used, good in shrinkage resistance, high in elastic property and easy to degrade, and can be used for manufacturing window cloth, air conditioners, air purifiers, screen windows, clothes, trousers and masks.

The invention discloses a method for preparing a superhydrophobic CNTs/TiO2 hybrid film on a substrate, and relates to CNTs/TiO2 hybrid films. The method aims at preparing the superhydrophobic CNTs/TiO2 hybrid film of a high-dispersion and uniform size TiO2 nanoparticle loaded carbon nanotube on the substrate through a low temperature liquid phase sedimentation method; a mixed solution of ammonium hexafluorotitanate and boric acid is used as a raw material, meanwhile, the carbon nanotube is added, and the CNTs/TiO2 hybrid film is prepared on the substrate through the low temperature liquid phase sedimentation method. The method comprises the steps as follows: 1) surface polishing of the substrate; 2) surface sedimentation of the substrate; 3) surface ornament and solidification of the substrate. The CNTs/TiO2 hybrid film of the high-dispersion and uniform size TiO2 nanoparticle loaded carbon nanotube can be obtained without complex treatment. Before and after coated with fluorosilane on the surface, the CNTs/TiO2 hybrid film always has the photocatalysis effect. Therefore, the superhydrophobic CNTs/TiO2 hybrid film is a film material with better performance and self-cleaning function.

Belonging to the technical field of water purification equipment, the invention provides a ship rainwater purification device. The device consists of: a rainwater collection hopper for collecting rainwater; a filter tank for purifying rainwater; a magnetic adsorption mechanism for adsorbing heavy metals in rainwater; adsorption pipelines for weakening the acidity of rainwater; and a reservoir fordisinfecting rainwater. The upper part at the middle of the filter tank is connected to the rainwater collection hopper through a pipeline, clamp slots are annularly distributed at the opening of therainwater collection hopper, detachable clamp seats are clamped inside the clamp slots, the clamp seats are connected to a coarse filter screen, and the filter tank is internally equipped with the magnetic adsorption mechanism, the adsorption pipelines and the reservoir from top to bottom in order. The device provided by the invention can quickly collect rainwater, and the rainwater purification degree is high, and after the steps of removal of heavy metals, weakening of the rainwater acidity, heating, sterilization and other steps, a drinkable water source can be produced.

The invention discloses a method for preparing a metal coated pearlescent pigment. The pearlescent pigment is characterized by comprising a flaky substrate and a plurality of titanium dioxide nanorods which are arranged at intervals and are formed on the flaky substrate, so that a nano-structured surface with roughness can be formed by the titanium dioxide nanorods of the pearlescent pigment, and then, a plurality of metal particles are deposited on each titanium dioxide nanorod and the flaky substrate respectively.

The invention discloses a pearlescent pigment with bactericidal power. The pearlescent pigment is characterized by comprising a flaky substrate, film forming resin and a plurality of titanium dioxide nanorods which are arranged at intervals and are formed on the flaky substrate, so that a nano-structured surface with roughness can be formed by the titanium dioxide nanorods of the pearlescent pigment, and then, a plurality of silver metal particles are deposited on each titanium dioxide nanorod and the flaky substrate respectively.

The invention discloses an antibacterial and mould-proof polyethylene compound plastic masterbatch. The plastic masterbatch is prepared from a titanium dioxide compound antibacterial agent; the titanium dioxide compound antibacterial agent is prepared by carbonizing electrospun enteromorpha nano-particles/titanium dioxide fibers, carrying out acid-washing, soaking in antibacterial liquid, drying and grinding into micro/nano-particles, wherein the antibacterial liquid is extracting liquid of a traditional Chinese medicine antibacterial component. The material has very good antibacterial property, and can effectively inhibit the propagation of microorganisms such as bacteria and mould on the surface of the material, so as to achieve the effects of resisting bacteria and preventing mould and maintain self cleanness.

The invention is applicable to the technical field of garbage treatment, and provides an electric flocculation coupling system for advanced treatment of landfill leachate. The system comprises an electric flocculation coupling filter device provided with an electrolytic flocculation tank at the front end and a photocatalytic ceramic membrane filter tank at the rear end; the electrolytic flocculation tank is provided with an anode electrolytic plate, a cathode electrolytic plate, a stirrer and a PH adjusting device; a photocatalytic ceramic module assembly and a photocatalytic light source arearranged in the photocatalytic ceramic membrane filter tank; the electrolytic flocculation tank is used for pumping the landfill leachate subjected to electrolytic flocculation into the photocatalyticceramic membrane filter tank through a lifting pump; the density of current introduced into the electrolytic flocculation tank is 10-1000 mA/cm<2>, the distance between the anode electrolytic plate and the cathode electrolytic plate is 1-20 cm, the PH value is 6-9, and the electrolytic flocculation time is 20-90 min; and the photocatalytic ceramic membrane assembly is formed by combining at leasttwo non-metal doped titanium dioxide ceramic membranes, and the pore diameter is 100-1000 nm.

The invention is applicable to the technical field of ceramic membrane preparation, and provides a preparation method of a photocatalytic composite ceramic membrane. The method comprises the followingsteps: mixing ethylenediamine, boric acid, thiourea and tetrabutyl titanate sol to prepare a composite precursor; dropwise adding absolute ethyl alcohol and glacial acetic acid into the obtained composite precursor, uniformly mixing and stirring, and carrying out wet ball milling to obtain faint yellow titanium dioxide transparent sol; adding a liquid glass solution into the titanium dioxide transparent sol for dipping, wherein the dipping time is 30-50 minutes; coating a flat plate support body with the the impregnated titanium dioxide sol; placing the coated flat plate supporting body in aroom temperature environment with the humidity smaller than 40% to be stored for 12-24 h; taking out the flat plate support body, roasting in a muffle furnace by taking nitrogen as a protective gas, heating to 500 DEG C at a speed of 2-5 DEG C/min, and keeping the constant temperature for 2-8 hours; and taking out the flat plate support body from the muffle furnace, and naturally cooling to room temperature to obtain the photocatalytic composite ceramic membrane.

The invention belongs to the technical field of glass surface treatment, and particularly relates to a preparation method and application of a self-cleaning glass hydrophobic agent. The preparation method of the self-cleaning glass hydrophobic agent comprise the following steps of S1, preparation of a component A: carrying out polymerization reaction on methylcyclosiloxane, methylphenylsiloxane and a silane coupling agent under certain conditions to obtain a terpolymer polysiloxane, reacting the terpolymer polysiloxane with a surfactant and a solvent, and then filtering to obtain the componentA; and S2, preparation of a component B: carrying out polymerization reaction on dimethylcyclosiloxane, methylphenylsiloxane and a silane coupling agent under certain conditions to obtain terpolymerpolysiloxane, reacting the terpolymer polysiloxane with a surfactant and a solvent, and then filtering to obtain the component B. The preparation method is simple, the quantitative production requirement is low, after a prepared product acts on the surface of the glass, water drops can be formed when water is sprayed to the surface of the glass, the contact angle of the water drops can reach 125 degrees, and the water drops can roll off automatically without leaving marks.