8 results about "Photocatalysis" patented technology

The invention relates to a transparent super-hydrophile coating of titanium oxide by adopting organic silicon as a substrate layer and a preparing method thereof.The invention is essentially characterized in that: a transparent super-hydrophile film of the titanium oxide is prepared on the surface of the glass, varnish and plastic base material; the film is firmly combine with the base material through the substrate of the organic silicon; the film is unnecessary to be sintered in high temperature and has favorable super-hydrophilicity and photocatalysis activity.The substrate material of the organic silicon is the product after mixture and hydrolysis of 3-aminopropyl triethoxysilane and teos; coating fluid is the mixture combining the hydrolyzed products of oxygen radix silane and the teos with titanium sol.The provided method has low cost, simple process, stable quality and is friendly to the environment; the light transmission rate of the prepared transparent super-hydrophile coating of titanium oxide is more than 90 percent; best wetting angle of the water is 4.4 degrees while the best wetting angle of atoleine is 6 degree; the invention has favorable super-hydrophilicity.

The invention discloses a method for preparing chlorinated rubber by water phase photocatalysis, which comprises the following steps of: adding an emulsifier, a dispersing agent and natural latex into pure water in turn under stirring, regulating the pH value of turbid feed liquor to be 2 by using hydrochloric acid, adding a photocatalyst and a photocatalysis accelerator, introducing chlorine at room temperature for chlorination reaction under stirring and ultraviolet irradiation, and after the reaction is finished, deacidifying, washing, neutralizing, centrifuging and drying to obtain a finished white powder product. The content of the chlorine in the prepared chlorinated natural rubber is between 62 and 69 percent, and the product has high dissolubility; and the temperature is not required to be controlled strictly, the reaction can be finished in a single reaction kettle at room temperature, and the method is high in efficiency and easy to operate.

The invention provides a nano-photocatalyst waste gas purification device which comprises a cabinet and a plurality of photocatalysis modules, wherein the photocatalysis modules are distributed in parallel in a gas inlet direction inside the cabinet; the photocatalysis modules comprise photocatalysis filtering nets which cover a gas inlet section inside the cabinet, and reaction lamp groups for driving the photocatalysis filtering nets to implement catalysis reactions; and a gas to be purified is fed into the cabinet and passes through the photocatalysis modules, and under the action of the reaction lamp groups and the photocatalysis filtering nets, pollutants in the gas to be purified can be decomposed. By adopting the nano-photocatalyst waste gas purification device provided by the invention, various organic and inorganic pollutants in a working environment can be decomposed, very high purification efficiency can be achieved, an environment can be effectively purified, pollution can be eliminated, the operation conditions can be improved, and body health of people can be ensured. In addition, the nano-photocatalyst waste gas purification device is simple and compact in structure, automatic operation can be achieved, the operation and maintenance cost is low, and large-scale application can be facilitated.

The invention discloses a purification treatment device. The purification treatment device comprises a device body, a temperature and humidity automatic regulation system, an organic pollutant continuous monitoring system, an air exchange system, a photocatalysis purification system and a master control box. The device body is composed of a structural framework and a heat preservation heat insulation material, and the temperature and humidity automatic regulation system comprises an air heating device, an automatic humidifying device, and a temperature and humidity real-time monitoring and intelligent control device. The organic pollutant continuous monitoring system comprises a TVOC rapid monitoring device and a formaldehyde rapid monitoring device; the air exchange system can exchange air inside and outside the device in a timing manner, the photocatalysis purification system can use the photocatalysis effect for decomposing and removing hazardous gas. According to the device, releasing and rapid odor removal of hazardous gas in an object can be accelerated, the photocatalysis material can be used for carrying out permanent continuous purification on slowly-released pollutants, the damage of air pollution to persons is reduced, peculiar smell is removed, antibacterial sterilization is achieved, biologic contamination is prevented, and air quality can be comprehensively improved.

The invention discloses a three-dimensional material based on a copper sulfide lamellar structure and a preparation method thereof. The material comprises copper sulfide nano sheets which grow perpendicularly to a foam copper skeleton, and the diameter of the copper sulfide nano sheets is 5-8 micrometers. The material is characterized in that foam copper is used as a substrate skeleton material, and the copper sulfide lamellar nano structure is perpendicularly grown on the surface of the foam copper. The preparation method comprises the following steps: dispersing sulfur powder into methanol,adding the foam copper into the prepared sulfur powder methanol dispersion liquid, placing the obtained material in a reaction kettle, and keeping a temperature of 60-90 DEG C for 3-6h. The copper sulfide lamellar structure provided by the invention has the advantages of a simple preparation process and high catalytic activity, thus the three-dimensional material based on the copper sulfide lamellar structure has potential application prospects in the fields of photocatalysis, catalyst carriers, electrochemical hydrogen storage and the like.

The invention relates to porous MoO2 photocatalyst microspheres with a hierarchical structure and a preparation method thereof, and belongs to the photocatalyst microspheres and the preparation methodthereof. The porous MoO2 photocatalyst microspheres are composed of a porous outer shell and an inner reticulated porous skeleton. The method comprises the steps: with citric acid as a fuel, ammoniumparamolybdate as a raw material and water as a solvent, carrying out magnetic stirring to form a mixed solution, then, spraying the solution into a tubular furnace with the temperature of 400-500 DEGC by ultrasonic atomization, and obtaining the porous MoO2 photocatalyst microspheres with the hierarchical structure. The preparation system has the advantages of simple operation of technological method, low cost of raw materials, economic feasibility and the like. The catalyst prepared by the method has a special hierarchical structure, and has the hollow and porous morphological characteristics, small particle size, uniform distribution and no agglomeration. The diameter of the microspheres is between 0.5 and 2 [mu]m. The catalyst has good photocatalytic performance and good hydrophilicity, and is beneficial to the application in the fields of photocatalysis, water pollution treatment, lithium ion batteries, supercapacitors, gas sensors and the like.

The invention discloses an internal self-cleaning pipe-type skylight system, which comprises a dual-frequency light guide pipe, a light collector, an ultraviolet light cover, a rainproof gusset, an ultraviolet light shield, a photocatalyst coating and a diffuser. The light collector is installed on the top of the dual-frequency light pipe, the ultraviolet light cover can allow ultraviolet rays to pass through and is installed on the rainproof buckle plate, and the dual-frequency light pipe has a non-conductive layer that can allow ultraviolet rays to pass through Visible light leakage window, the invisible light leakage window is adjacent to the position of the ultraviolet light mask, a movable ultraviolet light shield is installed near the ultraviolet light mask, and the photocatalyst coating is located on the surface or inside of the dual-frequency light pipe. The above structure does not affect the transmission mode and efficiency of visible light, and at the same time, it allows ultraviolet rays to enter the dual-frequency light guide in a controllable state and contact with the photocatalyst coating to generate ion clusters. It contains harmful substances for decomposition, thereby eliminating the corrosion of the inner wall of the dual-frequency light pipe by harmful substances in the air inside the dual-frequency light pipe, and prolonging the life of the system.