219 results about "Photocatalysis" patented technology

The invention relates to a lasting antibacterial photocatalyst particle and a preparation method thereof, and the preparation raw materials of the lasting antibacterial photocatalyst particle comprise the following components in parts by weight: 10-15 parts of butyl titanate, 5-10 parts of tetraethoxysilane, 1-2 parts of a rare earth compound, 8-15 parts of a silane coupling agent, 250-280 parts of absolute ethyl alcohol, 5-10 parts of industrial hydrochloric acid and 5-10 parts of deionized water. According to the photocatalyst particles, titanium dioxide serves as a core body, silicon dioxide serves as a shell layer, the silicon dioxide shell layer is of a mesoporous structure, and rare earth elements are distributed between the titanium dioxide core body and the silicon dioxide shell layer. Through the synergism of the titanium dioxide core, the porous silicon dioxide shell and the rare earth elements distributed between the core and the shell, the photocatalyst particles have the excellent effects of lasting and efficient antibacterial property and high stability.

A lung cancer cell culture tank with an ozone sterilization function belongs to the field of biotechnology and cell culture equipment, and is characterized in that a sealing door (2) is arranged at the front part of a tank body (1), a 8W UVC ultraviolet lamp tube (3) is mounted at the top in the tank, and a nano titanium dioxide photocatalyst coating is sprayed on the inner wall of the tank body to form an ultraviolet sterilization and ozone management module; the tank bottom wall (18) is provided with a semiconductor chilling plate (5) and a temperature sensor (6); an air filter (7) with a 0.22 mu m hydrophobic filter membrane is arranged at the upper part of the rear wall (11) of the tank body; the semiconductor chilling plate (5), the temperature sensor (6) and the air filter (7) jointly form a cell culture environment maintaining system; a glove hole (4) is formed in the center of each tank body side wall (12) and is connected with an operation glove (17) through a telescopic sleeve (16); the control panel (8) is located on the front face of the tank body. The invention has the advantages of simple manufacture, convenient use, low cost and obvious effect.

The utility model discloses an indoor photocatalyst formaldehyde eliminating device and relates to the technical field of air purification. Comprising a lower machine body and an upper machine body, the rear side of the lower machine body is hinged to the upper machine body through a hinge, a rectangular sealing ring is arranged at the joint of the lower machine body and the upper machine body, a plane lock is installed on the front side of the lower machine body, the lower machine body is in locking connection with the upper machine body through the plane lock, and a filter element support is installed in the lower machine body. According to the indoor photocatalyst formaldehyde eliminating device, the lower machine body and the upper machine body are hinged through the hinge, locked together through the plane lock and hermetically connected through the rectangular sealing ring, the plane lock is simple and efficient in arrangement, and in the maintenance and repair process, the indoor photocatalyst formaldehyde eliminating device is convenient to use. A user can easily open and close the purifier only by rotating a key or operating a handle, the filter element can be conveniently taken out of the lower purifier body to be cleaned or replaced, operation time and energy can be saved, and great convenience is brought to later maintenance work of the purifier.

The drying device with the deodorization function comprises a shell, a drying assembly and a deodorization assembly, a drying air duct and a deodorization air duct are arranged on the shell, a hot air outlet of the drying assembly is communicated with the drying air duct, and the deodorization assembly is arranged in the deodorization air duct; the deodorization assembly comprises a photocatalyst assembly and a fan, a deodorization air outlet is formed in one end of the deodorization air duct, the fan is installed at the other end of the deodorization air duct, and the photocatalyst assembly is installed between the deodorization air outlet and the fan so that photocatalyst factors generated by the photocatalyst assembly can be blown out of the deodorization air outlet through the fan. The non-inductive deodorization device is high in deodorization efficiency, low in noise in the operation process, capable of achieving non-inductive deodorization, capable of greatly improving the experience of followers, free of material consumption and long in service life.

The invention discloses an energy-saving environment control system for cultivating low-carbon-dioxide valuable and rare bacteria, and relates to the technical field of fungus cultivation equipment. A multi-gear frequency conversion fan is arranged in a power cabin, an HEPA filter screen and an activated carbon layer are sequentially arranged in a filter cabin, a spiral water-cooling coil pipe and a wet curtain device are arranged in a cooling cabin, an ultraviolet lamp and a photocatalyst coating are arranged in a disinfection cabin, and a fin type heat exchanger and a phase change energy storage module are arranged in a heat recovery cabin; the dynamic ventilation pipeline comprises a main air duct which is telescopic and heat-insulating, an electric air valve array is arranged at the tail end of the dynamic ventilation pipeline, a bypass mechanism is provided with a bypass pipeline and a switching valve, and air ports are formed in the tail ends of a plurality of branches; the monitoring and control unit comprises a PLC (Programmable Logic Controller) and is electrically connected with a temperature and humidity sensor, a CO / O concentration sensor, a wind speed sensor, an air quality sensor, a built-in timer and a logical operation module; precise control over the cultivation environment of the rare bacteria and efficient utilization of heat energy are achieved.

The invention provides a wet response directional self-cleaning down-proof fabric, a preparation method thereof and a down feather product, the preparation method of the wet response directional self-cleaning down-proof fabric comprises the following steps: S1, adding polyester polyurethane and microcapsules into an organic solvent to obtain a spinning solution; the microcapsule comprises a photocatalyst and a shell layer wrapping the photocatalyst, the shell layer comprises a component A and a component B, the component A comprises at least one of gelatin, Arabic gum, carrageenan and starch, and the component B comprises calcium alginate; s2, a knitted fabric serves as a receiving substrate, the spinning solution is subjected to electrostatic spinning, drying and hot pressing, the knitted fabric contains cellulose fibers, and the mass percentage content of the cellulose fibers in the knitted fabric is larger than 50%. The down-proof fabric capable of conducting moisture in one direction can be prepared, moisture of a quilt is accumulated on one side of the nanofibers in the using process, the self-cleaning function is triggered in the moisture accumulation state, and the down-proof fabric has the advantages of being breathable and soft.

This invention belongs to the field of composite material preparation technology, and provides an antibacterial activated carbon-silver ion composite photocatalyst and its preparation method. First, a nitrogen-doped titanium dioxide composite carbon dot core material is prepared using a hydrothermal method and high-temperature calcination, with titanium source, nitrogen source, and self-made carbon dots as raw materials. The core material is then surface-modified using a mercaptosilane coupling agent, and nano-silver is loaded in situ onto its surface via chemical reduction to obtain a multifunctional nanopowder. Simultaneously, activated carbon undergoes surface oxidation and amination treatment, and is grafted with the active ester polyethylene glycol maleimide, thereby constructing specific reaction sites on the activated carbon surface. Finally, the multifunctional nanopowder is covalently bonded to the activated carbon carrier surface using the Michael addition reaction between maleimide and mercapto groups. The resulting composite powder is then mixed with a dispersion medium and functional additives to obtain the antibacterial activated carbon-silver ion composite photocatalyst.

The invention relates to a flexible light source and photocatalyst collaborative purification cabin device, which comprises an electroluminescent module configured to emit visible light to realize cabin atmosphere illumination; and the photocatalyst module is arranged on a light irradiation path of the electroluminescent module, and an absorption spectrum of the photocatalyst module is matched with an emission spectrum of the electroluminescent module. The excitation wavelength of the photocatalyst is expanded from ultraviolet light to a visible light region, and the flexible electroluminescent fibers with matched spectrums are adopted as a synergistic excitation source, so that the same beam of visible light can be used as an atmosphere light source to be perceived by human eyes to meet the requirement of visual comfort on one hand, and can be used as an excitation light source to activate the photocatalyst on the other hand to meet the requirement of visual comfort on the other hand. The health purification function is achieved, the problems that in the prior art, purification and illumination are mutually contradictory in spectrum requirements and are mutually independent in system structure are fundamentally solved, and collaborative linkage of vision and smell is achieved.

The utility model discloses a photocatalyst sterilization assembly for an air purifier. The photocatalyst sterilization assembly comprises a shell of the photocatalyst sterilization assembly, an air inlet is formed in the upper end of the shell, an air outlet is formed in the lower end of the shell, a cylindrical photocatalyst carrier is installed in the shell, and a light source belt is installed on the inner wall of the shell and surrounds the photocatalyst carrier; an air inlet plate is installed in the air inlet in a threaded mode, an air outlet plate is installed in the air outlet, a flow guide plate is arranged on the inner wall of the shell, the flow guide plate is arranged in a spiral shape, and the cylindrical photocatalyst carrier is inserted into the center of the spiral flow guide plate. The cylindrical photocatalyst carrier is arranged in the shell, so that the flowing distance and the retention time of air in the shell are greatly increased, and the air can have more time to be in full contact with the cylindrical photocatalyst carrier, so that the decomposition and killing effects of the photocatalyst on harmful substances such as bacteria in the air are improved, and the overall sterilization efficiency of the equipment is improved.

The utility model relates to the technical field of photocatalyst production, in particular to a photocatalyst solution production device which comprises a stirring barrel, an inner barrel is coaxially arranged in the stirring barrel, the inner barrel is vertically arranged, and the upper end and the lower end of the inner barrel are communicated; the solution production device further comprises a stirring paddle arranged in the inner cylinder and a transmission mechanism used for driving the stirring paddle to rotate. According to the utility model, photocatalyst material sediments or agglomerated particles which do not penetrate through the filter plate are pushed to ascend to the upper part of the inner cylinder along with the filter plate in the ascending process of the filter plate, and then the filter plate is driven to quickly descend by matching with the piston rod; and the stirring paddle is arranged in the inner cylinder, so that photocatalyst material precipitates or agglomerated particles are positioned above the inner cylinder, and the stirring paddle continuously stirs the interior of the inner cylinder to scatter the photocatalyst material precipitates or agglomerated particles, thereby effectively avoiding the phenomenon that the material precipitates or agglomerated particles possibly appear in a conventional stirring mode.

The utility model discloses an indoor microorganism disinfection and purification system which comprises a shell, the shell is provided with an air inlet and an air outlet, the shell is provided with a purification device, a disinfection device and a centrifugal fan, and the purification device, the disinfection device and the centrifugal fan are sequentially arranged in the airflow direction; the disinfection device comprises a photocatalyst layer and a plurality of ultraviolet lamp tubes, and the photocatalyst layer and the ultraviolet lamp tubes are sequentially arranged in the direction from the air inlet to the air outlet. The disinfection device is composed of a photocatalyst layer and a plurality of ultraviolet lamp tubes, under ultraviolet irradiation, the photocatalyst layer can generate hydroxyl free radicals and superoxide anion free radicals with strong oxidizing property, and the free radicals can be rapidly subjected to oxidation-reduction reaction with bacteria, viruses, formaldehyde and other harmful microorganisms and organic pollutants in the air, so that the disinfection effect is achieved. The cell structure or molecular chain is destroyed and decomposed into harmless substances such as carbon dioxide, water and the like, so that the purposes of disinfection and purification are achieved.

The present application relates to a kind of whole house purification system and method based on full visible light excitation photocatalyst, the visible light photocatalyst prepared in advance is mixed uniformly with the paint and paint required by room decoration engineering according to set proportion, obtain the visible light photocatalyst purification material prepared and is sprayed on the surface of room wall and ceiling;According to the temperature change and humidity change of indoor and outdoor, utilize the heating equipment, refrigeration equipment, dehumidification equipment and humidification equipment in room to maintain the temperature and humidity in room in set range, and in set time period, utilize air inlet and return air opening for room ventilation, during using natural light or room lighting lamp, excitation photocatalyst in purification material.Visible light photocatalyst is sprayed to the surface of wall and ceiling in the decoration material containing visible light photocatalyst, and excitation visible light photocatalyst using natural light or lighting lamp, decomposes the harmful substance overflowed in decoration material.

The utility model relates to the field of photocatalysts, in particular to a photocatalyst material mixing device which comprises a base, a tank and a motor, a stirring mechanism is arranged in the tank and comprises a straight rod, a fixing sleeve and a composite blade set, the composite blade set comprises a first rotating cylinder, a bearing, a fixing ring and a butt joint column, and a ratchet wheel is fixed to the butt joint column. Materials for preparing the photocatalyst are put into the tank body, then the motor is started to provide power needed during operation for the stirring mechanism, the motor drives the straight rod to rotate, the assembly cylinder installed on the straight rod starts to drive the composite blade set to rotate, and in the rotating process of the composite blade set, the composite blade set is driven to rotate. The arc-shaped blades on the surface of the first rotary drum drive the first rotary drum to rotate after being subjected to resistance of a liquid material, and the arc-shaped blades can provide a spiral force in the horizontal direction during rotation, so that gel particles floating in the material on the liquid surface can be better fed to the bottom surface of the material, and the gel particles are uniformly distributed in the tank body.

The invention relates to the technical field of air purification, in particular to a novel device for detecting and removing formaldehyde. The elbow suction pipe is rotationally communicated with the top of the purification box, and the other end of the elbow suction pipe is detachably communicated with a filter pipe; and the electronic chemical sensor is detachably mounted in the filter pipe and extends into the elbow suction pipe. The formaldehyde content in the air is detected through the electronic chemical sensor, when the formaldehyde content exceeds the standard, the ultraviolet lamp and the suction pump can be automatically started, a photocatalyst is irradiated through the self-rotating ultraviolet lamp, a formaldehyde eliminating agent is sucked into the self-rotating spraying head through the suction pump, the formaldehyde eliminating agent is sprayed to the air in a large range, and the formaldehyde eliminating effect is good. The formaldehyde in the air can be removed while the formaldehyde in the air is detected, and the purification efficiency is improved.

The present invention relates to a nanostructured optical carrier comprising a nanostructured surface and a contact surface, formed on a substrate by spraying, brushing, spin coating, immersion, deposition, growth, or etching. The nanostructured carrier exhibits light transmissivity or reflectivity, and is in the form of a thin sheet, film, or thin, discontinuous island with a specific nanostructure thickness. Specifically, the nanostructured surface comprises a plurality of nanoscale bumps, nanoscale recesses, or a combination of bumps and recesses. Multiple optical actions on the nanostructured surface significantly enhance the nanoreaction of light. The nanostructures can be nanoscale bumps, nanoscale recesses, or a combination thereof, and the optical action can be reflective, transmissive, resonant, photocatalytic, or a combination of these, thereby achieving the properties of killing bacteria or viruses and decomposing impurities.

The utility model relates to an air purification device and a three-dimensional printing system, and the air purification device comprises an outer cylinder which is provided with an air supply channel; the inner barrel is arranged in the air supply channel, and the air supply channel is divided into a first airflow channel and a second airflow channel by the inner barrel; the purification assembly is arranged in the air supply channel and comprises an illumination module, a photocatalyst carrier module and an ozone generation module, the ozone generation module is arranged in the second airflow channel, and ozone generated by the ozone generation module flows to the first airflow channel from the second airflow channel. Inlet air flow of the air supply channel can smoothly enter the first air flow channel and the second air flow channel, the air inlet efficiency is improved, air is rapidly purified, meanwhile, ozone enters the first air flow channel from the second air flow channel, decomposition of harmful substances can be enhanced, and the purification effect is improved.

The application discloses a preparation method of a photocatalyst synergistic slow-release odor-removing gel and belongs to the technical field of air purification materials. Through the synergistic effect of photocatalysts, antibacterial and mildew-proof components and slow-release structures, the air purification effect is achieved. Specifically, first, add a Leishi photocatalyst formaldehyde-removing liquid, activated carbon and a gelling agent into a reaction kettle to perform a hydrothermal reaction to obtain a solution A; then, add a surfactant, antibacterial and mildew-proof formaldehyde-removing powder HNF-001 and a synergist into the solution A, perform heat preservation and stirring to obtain a solution B; finally, close the heating and continue to stir, add a humectant into the solution B and perform capping to obtain the photocatalyst synergistic slow-release odor-removing gel. Through the synergistic proportioning of the Leishi photocatalyst formaldehyde-removing liquid, the antibacterial and mildew-proof formaldehyde-removing powder HNF-001 and the synergist, in combination with a slow-release gel structure and a flow guide design, the photocatalyst synergistic slow-release odor-removing gel realizes the multi-effect integration of formaldehyde decomposition, antibacterial and mildew-proof and odor absorption and decomposition. The photocatalyst synergistic slow-release odor-removing gel has long-acting slow-release and environmental adaptability and is suitable for air purification in household and vehicle-mounted scenes.

The invention relates to the technical field of air conditioners, particularly provides an air purification device for an air conditioner, a control method, the air conditioner and a storage medium, and aims to solve the problems that an existing air conditioner removes harmful gas in indoor air through activated carbon, and the efficiency of harmful gas adsorption and removal through activated carbon is low; adsorbed harmful gas slowly volatilizes to cause secondary pollution of indoor air and poor quality of the indoor air when the air purifier is not replaced for a long time. In order to achieve the purpose, the air purification device comprises a photocatalyst module and a TVOC sensor. The photocatalyst module and the TVOC sensor are both arranged in the shell and located at the air inlet, and the photocatalyst module and the TVOC sensor are both in communication connection with the indoor unit main control board. According to the air purification device for the air conditioner, the photocatalyst module and the TVOC sensor are arranged at the air inlet, harmful gas in air can be efficiently decomposed without frequent replacement, secondary pollution to indoor air is avoided, and the indoor air quality is improved.

The application discloses a sterilization device for an air conditioner and the air conditioner. The air conditioner has a fresh air module, the fresh air module has a fresh air outlet, the sterilization device is suitable for being arranged at the fresh air outlet, and the sterilization device comprises a mounting seat, an air inlet is formed in the mounting seat, the air inlet is suitable for being communicated with the fresh air outlet, an air duct part is arranged on the mounting seat and defines a sterilization air duct communicated with the air inlet, a pulling assembly is slidably connected with the mounting seat and is arranged opposite to the air duct part, an air outlet communicated with the sterilization air duct is arranged on the side wall of the pulling assembly, and a sterilization and disinfection assembly comprises an ultraviolet lamp and a photocatalyst net, the sterilization and disinfection assembly is arranged on the pulling assembly and is located at the outlet of the sterilization air duct. According to the sterilization device for the air conditioner, the medical fresh air function is achieved, and the indoor air flowability and the cleanliness of the breathed air are met.

The utility model discloses a photocatalyst purification device, and relates to the technical field of photolysis air purification. An air outlet and an air inlet are formed in the upper end and the lower end of the box body respectively, the two sets of inclined cellular board assemblies are arranged and assembled at the air outlet and the air inlet, and the light-emitting pieces emit light sources to photolyze the photocatalyst layer to purify air; the inclined cellular board assembly comprises a frame body, a first inclined cellular board which is arranged in the frame body and faces one side of the light-emitting part, and a second inclined cellular board which is arranged on one side, back to the light-emitting part, of the first inclined cellular board; a plurality of first inclined honeycomb holes with channels inclined towards the central axis of the frame body are formed in the first inclined honeycomb plate; a plurality of second inclined honeycomb holes which are communicated with the first inclined honeycomb holes and are opposite to the first inclined honeycomb holes in inclined direction are formed in the second inclined honeycomb plate. By the adoption of the technical scheme, the double-layer inclined cellular board is adopted, and the advantages that light leakage is avoided, wind resistance is small, the air volume is increased, and therefore the overall purification efficiency is improved are achieved.

The invention relates to the technical field of photocatalysts, in particular to a shell-core structure photocatalyst material and a preparation process thereof. The shell-core structure photocatalyst material comprises titanium dioxide, an antibacterial composite layer and a silicon dioxide layer, the antibacterial composite layer and the silicon dioxide layer are sequentially coated, and raw materials of the antibacterial composite layer comprise ZIF-based quantum dots, gallic acid and zirconium phosphate. The shell-core structure photocatalyst material provided by the invention improves the problem of insufficient antibacterial performance in the prior art, and the prepared photocatalyst material has long-acting antibacterial performance and structural stability.

The down lamp structure with the air purification function comprises a panel, an illuminating lamp assembly, a first installation base, a photocatalyst filter element, a second installation base, a draught fan, a rear cover and the like, the panel, the first installation base, the second installation base and the rear cover form a shell structure, the illuminating lamp assembly is arranged on the panel and used for illuminating, and the photocatalyst filter element is arranged on the shell structure. The photocatalyst filter element is matched with the draught fan to form an air purification structure located in the shell. According to the down lamp structure with the air purification function, the air disinfection structure and the down lamp structure are combined, the down lamp structure capable of conducting illumination and air purification is obtained, and the whole structure can be installed at the original installation position used for installing a down lamp; additional arrangement of a new installation position and installation wiring is not needed, the system can be perfectly adapted to new and old buildings, and no additional space is occupied; the whole down lamp structure is simple in structure, convenient to install and maintain and high in practicability.

The utility model relates to a self-circulation fountain solution system which comprises a pipeline assembly, a power pump assembly and a control valve assembly. The pipeline assembly comprises a main path and a branch path, a wastewater collecting tank, a first temporary storage tank, a first filtering assembly, a UV photocatalyst ceramic core water treater, a quality control device and a storage tank are sequentially arranged on the main path, the first end of the branch path is connected with the quality control device, and the first end of the branch path is connected with the main path and located between the first temporary storage tank and the first filtering assembly; and a second filtering assembly and a second temporary storage box are sequentially arranged on the branch. The control valve assembly is arranged on the pipeline assembly, and the control valve assembly is configured to control on-off of the pipeline assembly. According to the fountain solution filtering device, the untreated fountain solution is stored in the first temporary storage box, and the treated fountain solution which does not meet the standard flows through the second filtering assembly and the first filtering assembly through the branch to be circularly filtered until the fountain solution meets the standard, so that the filtering precision is improved, the quality of the fountain solution is further improved, and the cyclic utilization rate is increased.

The invention provides an air purification device, an indoor unit and an air conditioner, the air purification device comprises an adsorption filter screen, an electrocatalyst and a photocatalyst are loaded on the adsorption filter screen, the pollutant concentration of the air outlet side of the adsorption filter screen is b, and the difference between the pollutant concentration of the air inlet side and the pollutant concentration of the air outlet side is c; the driving part comprises a driving mechanism and a rotating shaft; the rotating shaft has conductivity and is grounded; the adsorption filter screen circularly penetrates through the decomposition cabin; a high-voltage electrode and an ultraviolet lamp are arranged in the decomposition cabin, a discharge gap is formed between the high-voltage electrode and the rotating shaft, the adsorption filter screen circularly passes through the discharge gap, and a high-voltage electric field is formed between the high-voltage electrode and the rotating shaft to decompose pollutants adsorbed on the adsorption filter screen; the ultraviolet lamp is configured to irradiate the regeneration area of the adsorption filter screen so as to decompose pollutants adsorbed on the regeneration area; and the control system is configured to adjust the on-off and power of the high-voltage electrode according to the values of b and c, adjust the on-off and power of the ultraviolet lamp and adjust the rotating speed of the rotating shaft.

The invention relates to a self-cleaning coating as well as a preparation method and application thereof, and relates to the technical field of coatings, and a self-cleaning functional component of the self-cleaning coating comprises modified titanium dioxide; the modified titanium dioxide is obtained by reacting titanium dioxide with an organic phosphonic acid compound as shown in a formula I. Under an existing self-cleaning coating formula system, titanium dioxide and an acridinyl-containing organic phosphonic acid compound are reacted according to a proper proportion, so that part of titanium dioxide is converted into an organic phosphonic acid titanium compound under the actions of acid-base neutralization, coordination and the like; modified titanium dioxide is endowed with double self-cleaning action mechanisms of a photocatalyst TiO2 and an air catalyst titanium phosphate, so that the self-cleaning effect of the coating is remarkably improved; meanwhile, the modified titanium dioxide can effectively enhance the bonding strength between the coating and the base material and improve the weather resistance of the coating, so that the self-cleaning use requirements of the surfaces of various base materials such as stones, aluminum plates and glass can be met.

The invention belongs to the technical field of catalysts, and relates to an iron-based gel particle catalyst and a preparation method and application thereof, the preparation method comprises the following steps: (1) mixing sodium alginate, a photocatalyst medium and deionized water, and uniformly stirring to obtain a mixed solution; (2) dropwise adding the mixed solution obtained in the step (1) into a ferrite solution, enabling sodium alginate and ferrous ions to be subjected to a cross-linking reaction to form spherical gel particles, coating a gel network with a photocatalyst medium, and then carrying out curing treatment; and (3) collecting the spherical gel particles obtained in the step (2), and sequentially washing and drying to obtain the iron-based gel particle catalyst. The preparation method provided by the invention is simple in process, the carrier is cheap and easy to obtain, the obtained catalyst is high in catalytic efficiency, efficient in iron circulation and easy to separate and recover, the dosage of required chemicals in the wastewater treatment process is small, the amount of generated sludge is small, and the process compatibility and economic benefits are remarkably improved.

The utility model provides a central air conditioning ventilation pipeline dust collector relates to central air conditioning ventilation pipeline dust removal equipment field, and the device passes through the inside of central air conditioning ventilation pipeline automatic cleaning of cleaning robot, has reduced the labor intensity of manual cleaning significantly, can be in the inside of central air conditioning ventilation pipeline meets the automatic notice of cleaning standard, does not need manual judgment, through dust concentration detector matches voice prompter automatic detection and broadcast detection result, is more intelligent, in addition, does not need to spray disinfectant sterilization after completing the dust removal procedure, can realize efficient sterilization through photocatalyst sterilization component and will not make the inside of central air conditioning ventilation pipeline humid, will not produce peculiar smell in the sterilization process, and the sterilization effect is better.

This invention discloses a refrigerator and its odor purification method. An additional first air duct, equipped with dampers at both ends, is installed within the air duct leading to the refrigerator compartment. A gas sensor and a photocatalytic module are installed within the first air duct, and an ion generator is installed inside the refrigerator compartment. Both the photocatalytic module and the ion generator are used to purify odor gases. When the gas sensor is working normally, the photocatalytic module is turned off, and the dampers in the first air duct and the ion generator are opened, purifying the refrigerator compartment through the ion generator. When the gas sensor is at risk of passivation, the dampers in the first air duct close, and the photocatalytic module activates to purify the odor gases in the first air duct, restoring the gas sensor's sensitivity. During this period, the ion generator continues to operate to purify the odor gases in the refrigerator compartment. This invention can restore the sensitivity of the gas sensor in a timely manner according to the degree of odor influence on the gas sensor, without affecting the refrigerator's odor purification effect.

The present invention provides a degerming material for purifying water and / or air. Provided is a material (100) for degerming, comprising a foam glass (101) and a photocatalyst (102).