49results about How to "Strong oxidation" patented technology

The invention discloses a PID resistance crystalline silicon battery. The PID resistance crystalline silicon battery comprises a silicon dioxide layer and a silicon nitride antireflecting layer which sequentially cover a silicon substrate. A preparation method of the PID resistance crystalline silicon battery comprises the following steps that cleaning, texturing, diffusion, phosphorosilicate glass removing and edge etching are conducted on the silicon substrate; ozone is generated on the surface of the silicon substrate through an ozone generation device, then the silicon substrate is placed under a UV lamp to be irradiated, and a layer of silicon oxide is grown; PECVD equipment is used for growing the silicon nitride antireflecting layer on the silicon oxide, and then printing and sintering of electrodes on a front face and a back face are achieved. According to the PID resistance crystalline silicon battery, the structure of an antireflecting layer of the battery is mainly improved, the compact silicon dioxide layer is prepared between traditional single-layer or multi-layer silicon nitride and the crystalline silicon substrate by using the UV lamp for irradiating, the silicon dioxide layer can prevent erosion of positive ions to PN junctions, and therefore the influence of a PID effect is reduced.

A composite disinfectant for culturing aquatic products contains potassium (or sodium) perferrite, excipient, and / or pH regulator, stabilizer, adhesive, talc powder and magnesium stearate. Its advantages are high effect on disinfecting, enriching oxygen in water, and removing heavy metals, organic substances and harmful suspended substances, and no poison.

The invention discloses a fresh keeping agent containing essential oil, for fruits, and an application. The fresh keeping agent for fruits is characterized by being compounded from lysozyme, tea polyphenols, nisin, essential oil A, essential oil B, Vc and distilled water in a certain proportion. According to the fresh keeping agent for fruits, disclosed by the invention, the essential oil is optimized to be used as a main component of the fresh keeping agent, so that the fresh keeping agent has excellent effects of bacteriostasis and oxidation resistance and is applied to corrosion resistance and fresh keeping of the fruits, the fresh keeping and storage period of the fruits can be greatly prolonged, the fruits are guaranteed to maintain original quality in the fresh keeping period, and the quality of the fruits is effectively guaranteed. The fresh keeping agent for the fruits, disclosed by the invention is simple in compounding method, and convenient to apply; and the fresh keeping agent is completely compounded from natural components, and harmful chemical substances are not added, so that the fresh keeping agent is safe and environmental-friendly, and has an important industrial value.

The invention discloses a method for preparing a pavement base material by stabilizing iron tailings by a novel soil stabilizer. The preparation method of the novel soil stabilizer comprises the following steps: diluting a TerranZyme bio-enzyme soil stabilizer with water by 10-100 times, adding solid CaCl2 with mass being 5%-10% that of diluting liquid and acidified water glass with mass being 5%-10% that of the diluting liquid, heating to 30-50 DEG C by microwaves, reacting for 20-60 minutes, and performing mixed modification to obtain the novel soil stabilizer. The novel soil stabilizer can be used for stabilizing the iron tailings to prepare the pavement base material. The method for preparing the pavement base material comprises the following steps: uniformly mixing cement, gravel and the iron tailings with the novel soil stabilizer according to a mass ratio of 5: 30: 68: 2 to obtain an inorganic mixture, adding 1.5kg / m<3> of polypropylene fibers, and uniformly mixing to obtain the pavement base material. All technical indexes of the pavement base material meet the national standard requirements, the utilization rate of the iron tailings is high, the environmental problem caused by piling of a large quantity of the iron tailings and mining of pavement gravel materials is solved, and economic benefits are obtained.

The present invention relates to a pure cotton garment washing, dyeing and finishing process. Said process successively includes the following steps: preparing cotton yarn, weaving, placing pure cotton garment into garment dyeing machine, preparing scouring and bleaching solution according to technological formula, scouring and bleaching to predefined time, washing, neutralization, washing; using cationic modifying agent whose dose is 1-3% of garment weight to make cotton fiber undergo the process of cationic modification treatment to predefined time; thermostatical dyeing to predefined time, washing, soaping, washing; using cellulose whose dose is 2% of garment weight to make enzymatic washing (polishing treatment) to predefined time, under the alkaline condition stopping enzymatic active action; dewatering, drying and finalizing the design.

The invention relates to a wastewater electrolytic treatment system, belonging to the technical field of electrocoagulation wastewater treatment. The wastewater electrolytic treatment system comprises a wastewater collecting basin, a brine tank, an NaOH storage tank, an electrolytic box, a settling tower and a sludge concentration basin, wherein running water is respectively introduced into the NaOH storage tank, the brine tank and the electrolytic box through a water inlet conveying pipe, the inlet end of the electrolytic box is connected with the outlet of a first static mixer through a pipeline, and the outlet end of the electrolytic box is connected with the inlet of a second static mixer through the pipeline; the wastewater collecting basin, the brine tank and the NaOH storage tank are connected with the inlet of the first static mixer through respective liquid outlet pipes, the NaOH storage tank is also connected with the inlet of the second static mixer through another liquid outlet pipe, the outlet of the second static mixer is connected with the settling tower through a conveying pipeline, and the settling tower is provided with a water outlet. The invention solves the problems of poor effects in treating wastewater in the wastewater treatment mode and incapability of meeting effluent standards in the prior art and provides the wastewater electrolytic treatment system.

A method of producing an oxidation catalyst for cleaning exhaust gas, excellent in the function of oxidizing high boiling point materials such as particulates and polycyclic aromatic hydrocarbons contained in the exhaust gas of internal-combustion engines is provided. Metal elements A and B are selected so that the value of the ionic radius of metal element A / the ionic radius of metal element B is in the range of from 1.349 to 1.580. After reacting the grind mixed material of the first metal element A, the second metal element B, and urea, the reactant material is grind mixed, and thereafter subjected to firing at 600 to 1200° C. for 1 to 5 hours. By doing so, an oxidation catalyst for cleaning exhaust gas comprising a composite oxide represented by the general formula ABO3 is obtained.

The invention discloses a potassium ferrate-photo catalytic oxidation method and a device, which comprises that the potassium ferrate is combined with light generated in a photo catalysis reaction to generate Fe (V), and inhibits the recombination of photoproduction electrons and photoproduction cavities in the photo catalytic oxidation; and the reaction device is a potassium ferrate-photo catalytic oxidation reaction device. The method and the device of the invention are not only energy-saving and environment-friendly, but also have extremely high oxidation efficiency and overcome the defects of the high selectivity of a single potassium ferrate oxidation method and the low efficiency of a single photo catalytic oxidation method, and especially overcome the defect of slow reaction time of the photo catalytic oxidation method. In addition, the device of the invention has small volume, simple installation, no noise, wide applicable pH range, and moreover, the device has no secondary pollution, and high reaction rate, thus being a novel experimental device which is integrated with such strong abilities as sterilization, algae removal, oxidation, adsorption, flocculation, muddy removal, decoloration and deodorization, especially being suitable for an application in drinking water treatment.

The invention discloses a preparation method for functional wood capable of degrading organic pollutants through photocatalysis. The preparation method comprises the following steps that wood is subjected to pretreatment, internal pores of the wood are gotten through, and hydroxyl on the surface of the wood is exposed; bismuth nitrate is taken to be dissolved in an acid solution, then, coupling agents are added, stirring is conducted, and a mixed solution is obtained; soluble iodized salts and soluble chlorate are taken to be dissolved in water, stirring is conducted for dissolving, and a halide salt solution is obtained; the pretreated wood is soaked into the mixture solution, subjected to pressurized soaking, taken out and dewatered, and the wood adsorbed with bismuth ions is obtained; the wood adsorbed with the bismuth ions is soaked into the halide salt solution, subjected to pressurized soaking, taken out and subjected to vacuum drying, and then the functional wood capable of degrading the organic pollutants through photocatalysis can be obtained. The functional wood prepared through the method is high in light use ratio, can effectively degrade the organic pollutants under visible light radiation and is good in degradation effect.

The invention discloses a washing type air purification method which comprises the following steps: A, preparing ozone water, B, mixing contaminated air and the ozone water to form a gas-water mixture to enable the ozone water to purify the contaminated air, C, separating the gas-water mixture to obtain fresh air and pollutant-containing wastewater, D, leading the pollutant-containing wastewater into a sewage treatment system for treatment, and removing pollutants to obtain clean water, and E, recycling the clean water to prepare the ozone water. According to the washing type air purification method disclosed by the invention, a direct air treatment method for air purification in the prior art is converted into a water treatment method, so that various pollutants in the air can be completely and efficiently absorbed and decomposed, and any secondary pollution can be avoided; the wastewater with the pollutants can be recycled after being treated by the sewage treatment system; therefore, the washing type air purification method is environment-friendly.

The invention discloses a ferronickel slag self-cleaning water permeable brick. A manufacturing method comprises the steps that corn husks are ground at indoor temperature after being carbonized, photocatalytic material nanometer titania is adsorbed to pore surfaces, hydroxyl radical, super-oxygen ion free radical and H2O free radical which are generated through light irradiation have the strong oxidation and decomposition capability, and various kinds of organic matter are directly oxidized into CO2, H2O and other inorganic micromolecules to be applied to the water permeable brick, so that automobile exhaust and the like in atmosphere can be degraded, and the adsorbability is high; modified sugar filter mud is used as a pore-forming agent, raw clay, ferronickel slag and mordenite are used as aggregate, and the fracture resistance, compressive strength and other indexes of the water permeable brick prepared after high-temperature sintering are ensured, the ferronickel slag self-cleaning water permeable brick accords with national waste resource comprehensive utilization industrial policy, a large amount of ferronickel slag can be effectively consumed, the production cost is reduced, and energy consumption is lowered.

The invention relates to a method for welding cast iron by use of carbon dioxide gas. The method is characterized by comprising the following steps: 1) eliminating cracks on a repair welding part and drilling crack-stopping holes on the cracks at the ends of the cracks; 2) providing the repair welding part with a groove; 3) choosing welding wires 0.6 to 1.0 mm in diameter; and 4) using a CO2 gas method for welding. The method is suitable for welding large cast iron workpieces, and has the advantages of low production cost and good machining properties.

An oxidation catalyst for cleaning exhaust gas, excellent in the function of oxidizing high boiling point materials such as particulates and polycyclic aromatic hydrocarbons contained in the exhaust gas of internal-combustion engines is provided. The catalyst is a composite oxide containing two kinds of metal elements, wherein, when the two kinds of metal elements are defined as A and B, the value of the ionic radius of metal element A / the ionic radius of metal element B is in the range of from 1.349 to 1.580. The metal element A is selected from the group consisting of Sc, Y, Ho, Er, Tm, Yb, and Lu, and the metal element B is Mn. The composite oxide has a hexagonal structure.

The invention relates to the technical field of skin care beauty cosmetics, and in particular relates to a pure fruit-water, herbal medicine and vinegar skin-beautifying spray and a preparation method thereof. An innovative technical formula is adopted and is characterized by comprising pure fruit water, herbal medicine essence and vinegar, wherein the pure fruit water is given preference and includes apple water, lemon water, grape water and kiwi water; the pure herbal medicine essence includes a licorice root extract, a scutellaria root extract and a phyllanthus emblica Extract; vinegar is the fresh and edible fruit vinegar and includes apple vinegar and lemon vinegar. Compared with the prior art, the preparation method provided by the invention has the advantages and unique characteristics that 'water' serving as the major component in the formula is 100% natural fruit water, which is used in match with the pure herbal medicine essence and fresh fruit vinegar, thus the spray is fully functional. The spray has the effects of long-lasting hydrating, instantaneously repairing, compacting and smoothening, dispelling sallow complexion and whitening, and removing oil and cleaning and refreshing, and is a pure, natural, high-safety and multi-effect skin-beautifying spray.

The invention discloses a processing technique of freeze-dried instant porridge.The processing technique includes: cleaning, draining, freezing, boiling, dishing and freeze-drying raw material rice, and particularly includes: cleaning, draining and framing the raw material rice, controlling thickness to 18-22 cm, and placing at minus 15-minus 20 DEG C for freezing for 6-8 h; mixing the raw material rice after being frozen with water proportionally, adding vitamin E, and boiling for 30-35 min to obtain a semi-finished product; cooling; slowly freezing, quickly freezing, and freeze-drying to obtain the freeze-dried instant porridge.The freeze-fried instant porridge prepared by the processing technique is high in rehydration capability, rice-shaped and good in chewability, can present natural viscosity of rice porridge without softness and mushiness and is moderate in taste, boiling and processing time is shortened, retrogradation of the instant porridge can be well inhibited, rice-water separation can be prevented, and good quality can be maintained during a quality guarantee period.The freeze-dried instant porridge is healthy food which is convenient, nutrient and suitable for people of all ages, and is suitable for processing, production, popularization and eating.

A method of producing an oxidation catalyst for cleaning exhaust gas, excellent in the function of oxidizing high boiling point materials such as particulates and polycyclic aromatic hydrocarbons contained in the exhaust gas of internal-combustion engines is provided. Metal elements A and B are selected so that the value of the ionic radius of metal element A / the ionic radius of metal element B is in the range of from 1.349 to 1.580. After reacting the grind mixed material of the first metal element A, the second metal element B, and urea, the reactant material is grind mixed, and thereafter subjected to firing at 600 to 1200° C. for 1 to 5 hours. By doing so, an oxidation catalyst for cleaning exhaust gas comprising a composite oxide represented by the general formula ABO3 is obtained.

The invention discloses an air-permeable antiskid self-cleaning water-permeable brick. According to the air-permeable antiskid self-cleaning water-permeable brick, tea leaf residues are subjected to room-temperature grinding after carbonization treatment, a photo-catalytic material namely nano titanium dioxide is adsorbed to pore surfaces, and during light illumination, hydroxyl free radicals, super-oxygen ion free radicals and H2O free radicals are generated and have very strong oxidation and decomposition capacities to directly oxidize various organic substances into inorganic small molecules of CO2 and H2O which, when applied to the water-permeable brick, not only can degrade automobile exhaust and the like in the atmosphere but also have relatively strong absorbability. The air-permeable antiskid self-cleaning water-permeable brick disclosed by the invention, which is prepared by carrying out high-temperature sintering on a pore-forming agent of modified sugar filter mud and aggregates of hexacyclic stone, sepiolite and expanded graphite, is air-permeable, antiskid, high in strength and stable in quality, can be produced on a large scale easily, and has a broad market prospect.

The invention discloses a self-cleaning water permeable brick capable of adsorbing automobile exhaust. Corn cobs are ground at room temperature after being carbonized, the surfaces of pores adsorb a photocatalytic material nanometer titanium dioxide, and hydroxyl free radicals, super-oxygen ion free radicals and H2O free radicals are generated under light irradiation, have high oxidation and decomposition abilities, directly oxidize organic matter into inorganic micromolecules such as CO2 and H2O, are applied to the water permeable brick, can degrade the automobile exhaust in atmosphere, and have high adsorbability. The water permeable brick manufactured by sintering modified sugar filter mud serving as a pore-forming agent and montmorillonoid and desert serving as aggregate at high temperature is large in porosity, good in adsorbability and high in water permeability, the brick surface can absorb about 35% of the surface water, underground water is evaporated on sunny days, the ground temperature can be lowered, the content of pollutants like PM2.5 in road surface air is reduced, the double effects of water permeating and purifying are achieved, and the application prospect is wide.

The invention relates to a central water purifier which comprises a pressure bearing container, a negative electrode, a positive electrode and an electrolysis power source. The negative electrode and the positive electrode are in a pair, the pressure bearing container comprises a metal barrel arranged vertically and insulating sealed end caps at two ends, an insulating spacer bush is arranged in the pressure bearing container, a plurality of water permeable holes are formed in the middle of the insulating spacer bush, the negative electrode is arranged at the bottom of the insulating spacer bush, a first water-permeable membrane and a second water-permeable membrane sequentially wrap the insulating spacer bush outwards, a physical adsorption filter core is filled between the first water-permeable membrane and the second water-permeable membrane, a sewage outlet is arranged on the end cap at the top of the metal barrel, a water inlet is arranged on the end cap at the bottom of the metal barrel, a water outlet is arranged between the second water-permeable membrane and the metal barrel, and the metal barrel is electrically connected with the negative electrode. The central water purifier can eliminate pollution by microorganisms and viral bacteria of a household drinking water pipeline system and can improve and lower hardness of water.

A self-cleaning water permeable brick manufactured from rare earth fine tail sand is disclosed. Peanut vines are carbonized and then ground at room temperature. Pore surfaces adsorb a photocatalytic material that is nanometer titanium dioxide. Hydroxyl free radicals, super-oxygen ion free radicals and H2O free radicals are generated during light irradiation, have strong oxidation and degradation capabilities, can directly oxidize various organic matters into CO2, H2O and other inorganic small molecules, can degrade automobile exhaust in air when being used in the water permeable brick, have high adsorbability, and can effectively clean pollutants in water. Modified sugar filtration mud is adopted as a pore-forming agent. The rare earth fine tail sand, blast furnace slag and coal gangue are adopted as aggregates so that reutilization of rear earth waste resources is achieved and the self-cleaning water permeable brick having good water permeability, good water-retaining properties and high strength is obtained, thus facilitating environment protection, and promoting industrial and regional economic and urbanization development.

The invention discloses a self-cleaning water permeable brick with the adsorption and purifying function. After being carbonized, sawdust is ground at room temperature, a photocatalysis material nanometer titanium dioxide is adsorbed on the surface of a pore, hydroxyl free radicals, superoxide ion free radicals and H2O free radicals are generated during light irradiation and have high oxidization and degradation capacity, various organic matter is directly oxidized into CO2, H2O and other inorganic small molecules, automobile exhaust in atmosphere can be degraded when the sawdust is applied to the water permeable brick, and high adsorption performance is achieved. Modified sugar filter sludge serves as a pore forming agent, waste sand, heavy calcium and peat soil serve as aggregate, the water permeable brick prepared after high-temperature sintering is large in porosity, the adsorption purification performance is excellent, and the water permeable brick has the advantages of being high in strength, good in abrasion resistance, low in cost and environmentally friendly and can be widely applied to pavements, parks, squares, gardens and other places.

The invention provides a three-time sterilization technology for membrane-method recycling of printing and dyeing wastewater. The three-time sterilization technology is characterized in that sterilization treatment is conducted on printing and dyeing wastewater subjected to biochemical treatment for three times, wherein an oxidizing sterilizing agent is adopted as the sterilizing agent used in first-time sterilization, a non-oxidizing sterilizing agent is adopted as the sterilizing agent used in second-time sterilization, and an anionic sterilizing agent is adopted as the sterilizing agent used in third-time sterilization. According to the three-time sterilization technology for membrane-method recycling of the printing and dyeing wastewater, sterilization is conducted on printing and dyeing wastewater biochemical treatment effluent for three times through different sterilizing agents, microorganisms in water can be decreased to hundreds of or even dozens of microorganisms / ml from hundreds of thousands of microorganisms / ml, and the method is easy to operate and low in cost.

A device for preparing washing water, belonging to the technical field of electro-chemical and membrane filtration water treatment. The device comprises a water container which is respectively provided with a water inlet and a water outlet; at least one pair of a cathode and an anode are arranged within the water container; a water-permeable porous membrane is clamped between the coupled cathode and anode with no gaps, and the area of the inside of the water-permeable porous membrane opposite the cathode or the anode is smaller than the area of the inside of the cathode or the anode opposite the water-permeable porous membrane. The device can generate washing water which contains a large a number of ultra-micro bubbles and strong oxidation factors and has excellent reducibility.

The invention belongs to the technical field of preparation of environment-friendly materials and relates to a preparation method of a MoS2 / Bi2O3 p-n heterojunction photocatalyst. The preparation method comprises the specific steps: first, preparing MoS2 and Bi2O3; then dissolving MoS2 and Bi2O3 in ethanol; stirring the mixture and carrying out ultrasonic treatment; transferring the mixture to a stainless steel high pressure kettle; sealing the stainless steel high pressure kettle and setting a certain temperature to react; after the reaction, cooling the mixture to room temperature; centrifugalizing and collecting a solid product; then washing the solid product with absolute ethyl alcohol and deionized water; and finally, drying the solid product to obtain the MoS2 / Bi2O3 p-n heterojunction photocatalyst. The MoS2 / Bi2O3 p-n heterojunction photocatalyst prepared by the preparation method has good photocatalytic activity and stability, and the degradation rate to 2-mercaptobenzothiazolereaches 90% within 120 min, so that the photocatalytic degrading efficiency is improved. The preparation method is simple in operating process and relatively low in cost and is a green and environment-friendly efficient treatment technique.

The present invention relates to a safety environment-protecting sterilization disinfectant. It is made up by using (by weight portion) 0.5-30 portions of sodium perborate and 6-98 portions of coated sodium percarbonate, through a certain preparation process.

The invention discloses a colored high-titanium heavy slag self-cleaning water permeable brick. After carbonization treatment, carbonized pea stalk is ground at room temperature; the pore surface adsorbs a photocatalytic material nanometer titania; and light irradiation is conducted to generate hydroxyl radical, super-oxygen ion free radical and H2O free radical which have strong capacity of oxidization and decomposition to directly oxidize various organic matter into inorganic micomolecules such as CO2 and H2O, etc. By applying the above product into a water permeable brick, the obtained water permeable brick can degrade automobile exhaust and the like in the atmosphere. In addition, the water permeable brick has strong adsorbability and excellent sound-absorption and noise-reduction effects. According to the invention, modified sugar filter mud is used as a pore-forming agent, and high-titanium heavy slag, slag from a power plant and hemihydrate gypsum are used as aggregates. The water permeable brick prepared after high-temperature sintering of the materials has large porosity, excellent self-cleaning effect, good water permeability and high compressive strength. In addition, cost of raw materials is low, and environmental pollution caused by blast furnace slag is also avoided. The water permeable brick can be paved on plazas or sidewalk.

The invention discloses an oxidative absorption method for removing NOx and SO2 in flue gas simultaneously and belongs to the field of flue gas pollution control. The method comprises steps as follows: to-be-purified flue gas is introduced into a reaction device, SO2 and NOx flue gas are sufficiently contacted with an oxidative absorption solution for an oxidative absorption reaction, and finally,the flue gas is purified and discharged; the oxidative absorption solution is prepared from calcium peroxide and persulfate, and a mole ratio of persulfate to calcium peroxide in the solution is 0.15-1.5. The method for wet oxidative absorption of NOx and SO2 has strong oxidization and strong alkali absorption capabilities, and 100% SO2 removing efficiency and 70% or higher NOx removing efficiency can be realized, and the highest NOx removing efficiency even reaches 95%. With adoption of the method, NOx and SO2 in the same wet washing device can be removed simultaneously, and the method has the characteristics of being high in removing efficiency and low in cost, preventing secondary pollution and realizing recyclability of resources and the like.

The invention discloses a glass film sticking process, which comprises the following steps: (1) providing a qualified glass substrate; (2) depositing one or more functional film layers on the surface of the glass substrate, which is deposited by magnetron sputtering. way, in a working atmosphere with a vacuum level of 0.1Pa, N 2 / O 2 It is carried out under the condition that the ratio does not exceed 8; (3) Deposit a layer of zirconium mixed-doped film layer on the surface of one or more functional film systems, using magnetron sputtering deposition method, and the vacuum level is 0.12Pa Class working atmosphere, N 2 / O 2 Under the condition that the ratio does not exceed 8, the magnetron sputtering deposition method is used to deposit the functional film system layer and the zirconium mixed doped film layer. The zirconium doped film has high hardness and strong oxidation resistance, and the film layer can be avoided. A series of problems such as PE organic film, and at the same time, it has a good protective effect on the substrate film layer. During transportation and storage, it can prevent the substrate film layer from being scratched and delay the oxidation speed of the silver layer.

A device for preparing washing water, belonging to the technical field of electro-chemical and membrane filtration water treatment. The device comprises a water container which is respectively provided with a water inlet and a water outlet; at least one pair of a cathode and an anode are arranged within the water container; a water-permeable porous membrane is clamped between the coupled cathode and anode with no gaps, and the area of the inside of the water-permeable porous membrane opposite the cathode or the anode is smaller than the area of the inside of the cathode or the anode opposite the water-permeable porous membrane. The device can generate washing water which contains a large a number of ultra-micro bubbles and strong oxidation factors and has excellent reducibility.

The invention provides a noctilucent water-permeable multifunctional brick capable of catalytically degrading automobile exhaust and a manufacturing method of the noctilucent water-permeable multifunctional brick, and belongs to the technical field of solid waste recycling. The multifunctional brick comprises a covering layer and a water-permeable base layer, the water-permeable base layer is arranged on the lower portion of the covering layer, the thickness of the water-permeable base layer is 46-52 cm, and the water-permeable base layer is composed of geopolymers prepared from tailing barren rock, industrial byproduct gypsum and blast furnace slag; the thickness of the covering layer is 10-14 cm, and the covering layer is a photocatalytic oxidation and noctilucent layer and is formed by doping the water-permeable base layer material with coconut shell activated carbon loaded with modified nanoscale titanium dioxide and waste glass; anti-blocking grooves are reserved in the surface of the covering layer, and the water guide pipe penetrates through the covering layer and the permeable base layer. The multifunctional brick does not need to be fired, the water permeable brick prepared after compression molding and constant-temperature maintenance is large in porosity, good in water permeability and multipurpose, reduces noise, catalyzes and degrades automobile exhaust in the daytime and reflects light at night for illumination, energy conservation and emission reduction can be achieved, solid waste is efficiently recycled, and the application prospect is wide.