35results about How to "Improved photocorrosion resistance" patented technology

The invention belongs to the field of photoelectric materials, and discloses a Ti3C2Tx-TiO2 composite material and a preparation method and application thereof. The preparation method comprises the following steps: dispersing layered Ti3C2Tx Mxene powder into water and stirring, then adding a hydrogen peroxide solution, and carrying out a stirring reaction for 1-3 h at the temperature of 80-120 DEG C; and then carrying out ultrasonic treatment on the mixed solution after the reaction, washing and drying to obtain the Ti3C2Tx-TiO2 composite material. The mass volume ratio of the layered Ti3C2TxMxene powder to H2O2 is 1:(0.3-0.9) g/mL. According to the invention, the composite material with high photoelectric response is obtained by controlling the oxidation degree of Ti3C2Tx. The compositematerial has good photocurrent response and excellent stability and photocorrosion resistance, and can be used for preparing detection chips or sensors. The photoelectric sensor prepared by the method has excellent stability and repeatability.

The invention relates to a coated cloth and especially relates to a hydrophobic bacteriostasis multifunctional coated cloth and a processing method thereof. The hydrophobic bacteriostasis multifunctional coated cloth comprises a warp knitting fabric, a bacteriostasis coating on the surface of the warp knitting fabric, and a hydrophobic coating on the bacteriostasis coating. The bacteriostasis coating is prepared from 15-20 parts by weight of bamboo fibers, 0.5-2 parts by weight of Wasabia japonica extract, 0.5-2 parts by weight of white gourd kernel extract, 20-35 parts by weight of a polyvinylidene chloride emulsion and 35-45 parts by weight of an acrylate copolymer-paraffin composite emulsion. The hydrophobic coating is prepared from 100 parts by weight of PVC paste resin, 50-80 parts by weight of an eco-friendly plasticizer, 2-5 parts by weight of a stabilizing agent, 0-60 parts by weight of a filler, 0-20 parts by weight of a fire retardant, 0-5 parts by weight of a mildew inhibitor, 0-5 parts by weight of an anti-oxidant, 0-10 parts by weight of a binder and 0-70 parts by weight of hydrophobic nanometer fibers.

The invention discloses a preparation method of a p-n junction type Cu:ZnO/N:rGO composite photocatalyst formed by Cu doped ZnO nanorods and N doped rGO. The Cu:ZnO/N:rGO composite photocatalyst is formed by coating the Cu doped p-type ZnO nanorods with the N doped n-type rGO. The preparation method comprises the following steps: the Cu doped ZnO nanorods are prepared with a hydrothermal method firstly; then the Cu doped ZnO nanorods and GO are assembled with a hydrothermal reduction method to form a Cu:ZnO/rGO composite photocatalyst; finally, Cu:ZnO/rGO is subjected to annealing treatment in NH3 atmosphere for N doping, and the Cu:ZnO/N:rGO composite photocatalyst is obtained. The Cu:ZnO/N:rGO composite photocatalyst prepared with the method has very high photocatalytic activity in ultraviolet light and can inhibit photo-corrosion of ZnO, the stability of the photocatalyst is improved greatly, and the photocatalyst has great potential application values in the field of sewage treatment.

The invention provides a preparation method of a photocatalytic composite material, and relates to the technical field of catalysts. The preparation method comprises the following steps: (1) carryingout soaking pretreatment on plant leaves, thus obtaining template biomass; (2) mixing a molybdenum source-sulfur source water solution with the template biomass obtained in step (1), and immersing, thus obtaining a composite material precursor; (3) calcining the composite material precursor obtained in step (2), thus obtaining the photocatalytic composite material. The photocatalytic composite material is prepared from needle-like molybdenum sulfide and biomass carbon, wherein the needle-like molybdenum sulfide is loaded on the surface of the flaky biomass carbon; the content of the biomass carbon is 70 to 90 percent, and the content of the molybdenum sulfide is 10 to 30 percent. The photocatalytic hydrogen production performance of the photocatalytic composite material prepared by the invention is superior to that of a pure molybdenum sulfide material, excellent photocorrosion resistance is obtained, and the hydrogen production efficiency is just reduced by about 10 percent after circulating for thrice.

The invention provides an anti-fouling and antibacterial skin feeling furniture decoration film. The anti-fouling and antibacterial skin feeling furniture decoration film comprises a base material, anantibacterial film and a printing facing film; the base material, the antibacterial film and the printing facing film are obtained by hot pressing and laminating; the anti-fouling and antibacterial skin feeling furniture decoration film further comprises a waterborne polyurethane composite coating; the waterborne polyurethane composite coating is formed after a mixed emulsion, which is obtained by mixing and stirring waterborne polyurethane, acrylate emulsion, modified silicon resin and vulcanized rubber, is coated on the printing facing film and dried. The anti-fouling and antibacterial skinfeeling furniture decoration film provided by the invention has the advantages of excellent photocorrosion resistance, excellent rigidity and excellent simulated skin feeling; and the super-smooth surface and soft hand feeling of the anti-fouling and antibacterial skin feeling furniture decoration film are realized.

The invention discloses an advertising cloth with photocorrosion resistance. The advertising cloth is composed of a grid cloth, a PVC laminating layer and a photocorrosion resisting layer, wherein the PVC laminating layer is produced from PVC paste resin, an environmentally-friendly plasticizer, a stabilizer, a filler, a flame retardant, a mildew inhibitor, an antioxidant and an adhesive; and the photocorrosion resisting layer is composed of micro-nano zinc oxide fibers. The invention also discloses a processing method of the advertising cloth with photocorrosion resistance. The advertising cloth has good photocorrosion resistance, can reflect a large amount of visible lights, and also can shield ultraviolet rays; and the above production method of the advertising cloth has the advantages of simplicity, fastness, good effect, realization of production by using present devices, and small difficulty in industry reconstruction.

The invention discloses a method for preparing an Ag3PO4/GO/HAP composite photocatalyst by utilizing bovine bones, graphene oxide and silver nitrate, and belongs to the field of high-value resource utilization of animal husbandry solid wastes, and phosphate in the bovine bones is used as a phosphorus source of a silver phosphate photocatalyst. The preparation method comprises the following steps:crushing bovine bones into small blocks, boiling the small blocks with deionized water for several hours, washing the small blocks for several times until grease and collagen are removed, then puttingthe small blocks into a muffle furnace for pyrolysis to prepare biomass hydroxyl calcium phosphate, carrying out ball milling on the biomass hydroxyl calcium phosphate, and carrying out reaction in darkon the milled biomass hydroxyl calcium phosphate and a silver nitrate solution in which graphene oxide is dispersed under an ultrasonic condition, and then, carrying out washing, centrifuging and drying in vacuum to obtain the Ag3PO4/GO/HAP composite photocatalyst. The biomass hydroxyl calcium phosphate is prepared from the bovine bones which are wide in source and low in price, and the prepared catalyst product is high in photocatalytic activity in a visible light region and good in photocatalytic stability and photocorrosion resistance, can be used for degrading organic pollutants in industrial, agricultural and domestic discharged wastewater, and has good economic benefits and environmental benefits.

The invention discloses a carbon-doped titanium dioxide polarized homojunction photoelectrocatalysis anode material and a preparation method thereof. The homojunction takes conductive glass as a substrate, a layer of carbon-doped titanium dioxide film material is formed by regulating and controlling the pH value through a simple hydrothermal method, and then the homojunction titanium dioxide photoelectric catalytic material is formed by regulating and controlling the pH value and polarizing an ethanol solution. The preparation method of the homojunction comprises the following steps: firstly, mixing deionized water, hydrochloric acid and titanium isopropylate, doping quantitative carbon, and uniformly stirring; then, carrying out hydrothermal reaction, and carrying out high-temperature sintering; and finally, carrying out polarization treatment on the prepared titanium dioxide sample by using ethanol and water, and carrying out aging treatment. Compared with common titanium dioxide, the photoelectric anode subjected to polarization and aging treatment has the remarkable advantages of being excellent in performance, excellent in light corrosion resistance, stable in performance and the like.