46results about How to "Increase microporosity" patented technology

The invention provides a soil ventilation improving synergist containing iron tailings and a preparation method thereof. The soil ventilation improving synergist comprises, by weight, 1 part of tailings, 0.01-0.1 part of crop straws and 0.01-0.1 part of polyvinyl alcohol. After the soil ventilation improving synergist is added into the soil, soil trace elements can be added, soil aggregate is increased, porosity of the soil is increased, soil ventilation is improved, and improvement of activity of microorganisms and enzyme in the soil is promoted. Hydroxyl on a polyvinyl alcohol high molecular chain on the surface of a tailings particle can be attached to soil particles, and soil aggregate and fine pores of the soil are further increased. Crop straw particles processed through decomposing can improve a biochemical property of cohesive soil, provides abundant organic substances for the soil, stimulates the microorganisms in the soil to grow and move, and improves fertilizer retaining and fertility improving capacity of the soil. The soil ventilation improving synergist is low in cost, simple in preparation process, favorable for popularizing. Simultaneously, double effects of chemical modification and physical modification are achieved simultaneously, and the effects are remarkable.

Compositions and methods for preparing mesostructured zeolites having improved hydrothermal stability. Such mesostructured zeolites can be prepared by subjecting a zeolite to rare earth ion exchange prior to and / or subsequent to introducing mesoporosity into the zeolite.

Compositions and methods for preparing mesostructured zeolites having improved hydrothermal stability. Such mesostructured zeolites can be prepared by subjecting a zeolite to rare earth ion exchange prior to and / or subsequent to introducing mesoporosity into the zeolite.

The invention discloses a preparation method of nitrogen-enriched active biomass coke. The preparation method comprises the following steps: (1) carbonizing a biomass raw material in a pyrolysis furnace with a nitrogen atmosphere, heating to 400-600 DEG C, and maintaining the final temperature for 30-60 minutes to preliminarily obtain a carbonized biomass coke of the raw material; (2) heating the carbonized biomass coke to 700-900 DEG C in an inert gas atmosphere, and switching the inert gas atmosphere in the furnace into a water vapor atmosphere when a set temperature is reached, and staying at the temperature for 30-60 minutes; and (3) switching the water vapor atmosphere into a NH3 atmosphere, putting the product obtained after the treatment in the step (2) into the NH3 atmosphere at 700-900 DEG C to perform ammoniated surface chemical treatment, staying for 60-100 minutes, and cooling to room temperature in an inert protection atmosphere to obtain the nitrogen-enriched active biomass coke. The invention also discloses a product prepared by the method. The product prepared by the method disclosed by the invention has a good pore structure obtained by activation and a lot of surface alkaline nitrogen-containing functional groups obtained by ammoniation, can well realize effective adsorption of acid gasses of CO2, SO2 and NOx at a high temperature.

The invention discloses a purification system for removing VOCs (Volatile Organic Chemicals) from air, and belongs to the field of atmosphere VOCs control. The purification system comprises a heating device, a purifying column, a dust remover and an exhaust fan, wherein a gas inlet is formed in the bottom of the purifying column; the heating device is arranged at the lower part area of the purifying column; an adsorbent is filled inside the purifying column; the top of the purifying column is connected with an inlet end of the dust remover through a pipeline; an outlet end of the dust remover is connected with the exhaust fan; a gas outlet is formed in the tail end of the exhaust fan; the adsorbent is prepared from activated aluminum oxide, activated carbon, iron ore powder, pellet sieve residues, a biomass material, a magnesia-based laterite-nickel ore, kaolin and an additive. According to the purification system disclosed by the invention, the purifying column is arranged, the adsorbent is filled inside the purifying column, and the heating device is arranged at the lower part of the purifying column, so that under the heating condition, the metal catalyst in the adsorbent can be used for catalyzing and decomposing VOCs, in addition, the adsorbent can effectively adsorb the VOCs, and the high-efficiency low-cost removal of VOCs can be realized.

The invention discloses an optimized long-life low-material-consumption refining ladle. The ladle comprises a ladle shell, wherein a permanent layer is built on the inner wall of the ladle shell; a cyclic work layer is poured on the inner wall of the permanent layer; a consumptive work layer is built on the inner wall of the cyclic work layer; the castable of the cyclic work layer comprises the following components in parts by weight: 55-70 parts of sintered microporous corundum aggregate, 5-10 parts of magnesium aluminum spinel aggregate, 10-25 parts of fine powder, 2-8 parts of micro powder, 3-8 parts of bonding agent, 0.1-0.5 parts of antidetonant, 0.05-2 parts of water reducing agent and 0.01-0.1 parts of foaming agent. The cast cyclic work layer improves the safety coefficient for use of the refining ladle, has good integrity and effectively blocks the penetration of molten steel from brick joints of the permanent layer, and the cast cyclic work layer has low thermal conductivity and good thermal insulation property and can greatly reduce the consumption of the refractory material per ton of steel.

The invention discloses a preparation method of a compound adsorbent mixture, an adsorbent particle and a compound adsorbent for purifying VOCs and belongs to the field of atmospheric VOCs treatment. The method comprises the steps of adding a mixture A and a mixture B to a mixer, adding water to mix and mixing evenly; and adding an additive to the mixer and mixing evenly to prepare the adsorbent mixture, wherein the mixture A comprises activated aluminum oxide, activated carbon and iron ore powder; and the mixture B comprises a pellet sieve residue, a biomass material, magnesium laterite-nickel ore and kaolin. The adsorbent has relatively high porosity and specific surface area; and when the VOCs are in contact with the adsorbent, the adsorbent can be in full contact with the VOCs, and the adsorption efficiency of the adsorbent is improved, thereby achieving high-efficiency and low-cost emission reduction of the VOCs.

The invention provides a manufacturing technology for low-sulfur activated carbon. A desulfuration process, an alkali wash process and a drying process are added in a carbonizing process and an activation process, wherein a desulfurization agent of 10-30% is sprayed into the carbonized material to oxidize the contained sulfur element to a water-soluble compound to be removed through rinsing; an alkali liquor such as ammonia water is adopted for regulation for neutrality, and a drying process is conducted; in the carbonizing process, carbonizing agents such as ammonium dihydrogen phosphate or ammonium chloride can be used for impregnating the carbonized material for carbonizing processing under the working condition of 160-330 DEG C; the desulfurization agent is preferably a blend of nitric acid with concentration of 60-70% and hydrochloric acid with the concentration of 25-37%. The manufacturing technology can effectively remove the sulfur element in the activated carbon, so that the activated carbon has a wider application range and a better effect, the porosity of the activated carbon is increased, and the adsorptive property is remarkably improved.

The invention specifically relates to a fused aza-heterocyclic aromatic hydrocarbon porous framework of a two-dimensional lamellar structure, and a preparation method and application thereof, belonging to the technical field of functional materials. According to the invention, aza-heteropolycyclic aromatic hydrocarbon is synthesized on the basiss of cyclization of a diamino group and a diketo group for formation of phenazine and is used as a monomer; and then aza-heteropolycyclic aromatic hydrocarbon is subjected to the Scholl reaction under the catalysis of a Lewis acid salt so as to allow aza-heteropolycyclic aromatic hydrocarbon to undergo homopolymerization at high temperature and low pressure, so a conjugated polymer material of a microporous structure and with two-dimensional lamellar layers for complex catalysis of metal is produced. The two-dimensional material has the characteristics of a high specific surface area, a full conjugate plane structure, heat stability, resistance to acid and alkali, excellent catalytic activity, high recovery rate, etc. The method provided by the invention is simple to operate and controllable in process; and the prepared material can be used for catalyzing a cycloaddition reaction of CO2 with epoxypropane compounds so as to immobilize CO2 and has good application prospects.

The invention discloses a porous hollow spherical lithium ion cell anode material of carbon-coating lithium vanadium phosphate and a preparing method of the anode material. The preparing method of the anode material comprises the steps of taking a binder, a lithium source, a vanadium source and a phosphorous source into water, stirring and dissolving the materials, and conducting spraying drying on the obtained mixed solution to obtain a precursor; mixing the obtained precursor with a carbon source, conducting calcination under a protective atmosphere condition to obtain the anode material, wherein the concentration of the binder in water is 0.3-0.5 wt%, the concentration of the lithium element of the lithium source in water is 0.1-1 mol / L, the concentration of the vanadium element of the vanadium source in water is 0.06-0.6 mol / L, the concentration of the phosphorous element of the phosphorous source in water is 0.09-0.9 mol / L, and the additive amount of the carbon source is 4-20 wt% that of the precursor. The anode material prepared through the method is in a porous hollow spherical shape, and has a high specific area, and the circulation factor performance of the obtained product can be effectively improved.

The invention discloses a preparation method of chimonobambusa quadrangularis bamboo shoot powder. The method comprises the following steps: raw material harvesting, blanching, cooling, shelling, splitting, microwave drying, superfine grinding, and packaging for storage. By virtue of the process and technical parameters of a blanching technology, a microwave drying technology and a superfine grinding technology, the solubility, reconstitution property, mouthfeeling and quality of the chimonobambusa quadrangularis bamboo shoot powder can be improved, the production technology difficulty of the chimonobambusa quadrangularis bamboo shoot powder can be solved, and the benign development of chimonobambusa quadrangularis bamboo shoot industry can be promoted.

The invention discloses an anti-bacterial glass material for cosmetic bottle production, relates to the technical field of the cosmetic bottle production, and aims to solve the problem of poor anti-bacterial effect of an existing cosmetic bottle glass material. The anti-bacterial glass material for cosmetic bottle production comprises raw materials as follows: silica, silicon nitride, barium carbonate, calcium silicate, alumina fiber, nanometer titania, modified silver nitrate, modified diatomite, modified talcum powder, mica powder, sodium tripolyphosphate, chitosan, titanium dioxide and lignin. The invention further discloses a preparation method of the anti-bacterial glass material for the cosmetic bottle production. The prepared anti-bacterial glass material has better anti-bacterial and bacteriostatic effects, chitosan and lignin are added to the modified diatomite, the modified talcum powder and the mica powder, so that microporosity of the raw materials is increased, and bacterial growth can be inhibited; by addition of an appropriate amount of modified silver phosphate, silver ions can intensively attract mercapto groups of zymoprotein in bacteria and are rapidly bonded with the mercapto groups together, enzymes with the mercapto groups as necessary groups are enabled to be inactivated, and the bacteria are killed.

The invention discloses a preparation method of calcined kaolin with high whiteness and ultrahigh oil absorption. The preparation method comprises the following steps: removal of impurities in coal gangue; batching; crushing; iron removal; dry grinding; light burning in a reducing atmosphere; crushing; blending of slurry; iron removal; wet grinding; blending of slurry; iron removal; horizontal screw classification; disc classification; filter pressing and dehydration; slurry formation; iron removal; drying; pre-dispersion depolymerization; calcining in a weak reducing atmosphere; rapid cooling; post-dispersion depolymerization; and preparation of the calcined kaolin. According to the invention, a dehydroxylation section is creatively arranged behind the dry grinding section and before thewet grinding section; a light burning dehydroxylation-decarburization technology is adopted; the granularity of the material is controlled during classification and scattering, so the particle size and morphology of the material are controllable, and the microporous area and the heat exchange area of the material are increased; and in the process of calcining, the material is rapidly calcined to remove hydroxyl and realize whitening, and is then calcined and rapidly cooled without causing closing and blockage of micropores, so porosity is improved, and the calcined kaolin with high oil absorption and high whiteness is prepared.

The invention discloses an outdoor high-weather-resistance bamboo scrimber and a manufacturing method thereof.The manufacturing method comprises the steps that bamboo units are sequentially subjected to high-temperature steam sterilization treatment, biological pretreatment, primary cooking treatment, saturated steam carbonization treatment and secondary cooking treatment, and then the mildew-proof and corrosion-proof bamboo units are obtained; and carrying out gum dipping treatment, drying and balancing treatment, assembling, hot-pressing forming and post-treatment to obtain the outdoor high-weather-resistance bamboo scrimber. The outdoor high-weather-resistance bamboo scrimber has the advantages of being high in weather resistance, high in strength, close to the color of bamboo wood and the like, can meet the requirements for production and manufacturing of outdoor bamboo engineering materials and engineering components, and can be widely applied to the field of modern bamboo structure building engineering.

The invention discloses a composite phase change heat storage material using edible fungus charcoal as a shaping matrix and a preparation method. The designed heat storage material comprises the components of 30-90wt% of a phase change material and 10-70wt% of an edible fungus charcoal matrix material. The preparation method comprises the following steps: treating edible fungi by adopting a low-temperature hydrothermal carbonization method and a KOH high-temperature activation method sequentially to obtain the edible fungus charcoal matrix material, and loading a stearic acid phase change material to obtain the composite phase change heat storage material. The maximum stearic acid loading amount in the heat storage material can reach 77.51%, and the latent heat value is 144.8J / g. The heatstorage material is stable in components, good in composite effect and excellent in heat storage performance, and an operation technology in the preparation process is simple.

The invention relates to a low-porosity high-freezing-resistance gelatinizer which comprises the following components in parts by weight: 42-48 parts of superfine slag powder, 24-30 parts of silicon micropowder, 10-15 parts of expanding agent, 4-10 parts of composite water reducer, 2-5 parts of composite retarder, 2-3 parts of short steel fiber, 1-3 parts of ground calcium carbonate, 2-4 parts of microcrystalline cellulose and 1-3 parts of dioctyl sodium sulfosuccinate. The composite water reducer is composed of a polycarboxylic acid water reducer and an aliphatic water reducer in a weight ratio of (1-4):1; and the composite retarder is composed of sodium gluconate and sodium hexametaphosphate in a weight ratio of (1-4):1. The low-porosity high-freezing-resistance gelatinizer has the advantages of lower porosity, small pore size, ultrahigh strength, high durability and favorable volume stability.

The invention discloses a full-quantitative treatment method for kitchen waste. Materials containing the kitchen garbage are subjected to N times of hydrothermal carbonization reactions under the closed high-pressure condition, a hydrothermal carbonization liquid-phase working medium and hydrothermal carbon are obtained in each hydrothermal carbonization reaction, and part of the hydrothermal carbonization liquid-phase working medium obtained in the (N-1) th time serves as a feeding material of the Nth time of hydrothermal carbonization reaction, carrying out hydrothermal carbonization reaction with a material containing the kitchen garbage to finally obtain a liquid-phase product; the liquid-phase product and hydrothermal carbon obtained by each hydrothermal carbonization reaction are used as raw materials of agricultural fertilizers; wherein N is an integer greater than or equal to 2. The hydrothermal carbonization liquid-phase working medium is recycled, components in the liquid-phase working medium are concentrated, the hydrothermal carbonization reaction process is catalyzed, and the hydrothermal carbon yield and heat value are increased.

The invention discloses a super-hydrophobic hollow MOFs modified hollow fiber composite membrane and application thereof in alcohol / water rectification. The preparation method comprises the following steps: etching MOFs by adopting polyphenol to form hollow MOFs with rich reaction sites, then carrying out super-hydrophobic modification on the hollow MOFs to obtain super-hydrophobic hollow MOFs, then introducing the super-hydrophobic hollow MOFs into a polydimethylsiloxane (PDMS) coating solution, and coating the inner side of a hollow fiber membrane component to obtain the super-hydrophobic hollow MOFs modified hollow fiber composite membrane. And carrying out alcohol / water rectification by taking the obtained product as a structured packing. The preparation method has the advantages that the prepared super-hydrophobic hollow MOFs modified hollow fiber composite membrane greatly reduces the mass transfer resistance under the condition of reducing the wettability of the membrane, and has a good market application prospect.

The invention discloses a preparation method of a silk mask. The preparation method comprises the following steps of (1) enabling silkworms to uniformly spin on the surface of a support piece to obtain planar silk; (2) softening the planar silk; (3) soaking the softened planar silk in essence to enable the planar silk to fully absorb effective components in the essence; and (4) properly draining the planar silk fully absorbing the essence to obtain a planer silk mask body. Compared with common silk, the planar silk material is used as the mask substrate, so that on one hand, the complex process of silk reeling textile retreatment is omitted, the natural components and functions of silk protein are maintained to the maximum extent, the manufacturing cost is greatly reduced, and meanwhile, the advantages of natural skin friendliness, mildness and no irritation of the mask body are further enhanced.

The invention relates to a low-porosity high-freezing-resistance gelatinizer which comprises the following components in parts by weight: 42-48 parts of superfine slag powder, 24-30 parts of silicon micropowder, 10-15 parts of expanding agent, 4-10 parts of composite water reducer, 2-5 parts of composite retarder, 2-3 parts of short steel fiber, 1-3 parts of ground calcium carbonate, 2-4 parts of microcrystalline cellulose and 1-3 parts of dioctyl sodium sulfosuccinate. The composite water reducer is composed of a polycarboxylic acid water reducer and an aliphatic water reducer in a weight ratio of (1-4):1; and the composite retarder is composed of sodium gluconate and sodium hexametaphosphate in a weight ratio of (1-4):1. The low-porosity high-freezing-resistance gelatinizer has the advantages of lower porosity, small pore size, ultrahigh strength, high durability and favorable volume stability.

The invention relates to the technical field of sponges, and in particular relates to a graphene biological diatom sponge and a preparation method thereof. The sponge includes the following components: polyether polyol, grafted polyether, an A-1 catalyst, an A-33 catalyst, silicone oil, graphene, diatomite, stannum butylidene octoate and toluene diisocyanate. The graphene biological diatom spongeprovided by the invention adds the natural diatomite and the graphene to the components on the basis of an ordinary sponge, so that the naturalness and microporosity of the sponge are improved; and the sponge provided by the invention can release negative ions and far infrared rays, can adsorb and decompose bacteria and harmful gases entering the sponge body, can be further applied to air purification and water treatment, and has very high practical value.

The invention discloses a fermentation method of poultry manure mixed biochar, which comprises the following steps: S1, obtaining a segment-shaped material: rolling biochar entrained by double-layer paper for multiple layers, and cutting the rolled biochar into segments along the axial direction, wherein the segment-shaped material at least comprises a large material and a small material, and thevolume ratio of the large material to the small material is (2-4):1; and S2, mixing the raw materials: mixing 100-200 parts by mass of poultry manure, 10-15 parts by mass of the segmented material, 5-10 parts by mass of charcoal and 2-5 parts by mass of a microbial agent, and performing uniform stirring. According to the method, various volumes of segmented materials and biochar are mixed into thefermentation raw materials, and at least three-stage pore adjustment is formed in the thick-slurry poultry manure, so that the air circulation degree is improved, the available oxygen amount is increased, the degradation of organic matters is promoted, the degradation process is shortened, and the effective yield is increased; moreover, the segmented material structure is slowly decomposed, a support can also be formed in the fertilizer, a certain pore structure is generated, the air permeability and permeability of the fertilizer are improved, and the physical and chemical properties of soilare improved.

The invention relates to a method for preparing activated carbon. The method comprises the following steps of: weighing one of soluble phenolic resin, furfuryl alcohol resin, polyacrylonitrile and soluble starch, a carbon precursor polymer and one pore-forming agent of polyethylene glycol, polyvinyl alcohol and polyvinyl butyral, mixing, and adding one of methanol, ethanol and deionized water as a solvent for dissolution; and weighing the activated carbon raw material, adding into the solution for dipping, then drying, and carbonizing in a microwave high-temperature sintering furnace at the temperature of 500-1100 DEG C in a nitrogen atmosphere for 0.5-24h. According to the method for preparing activated carbon, provided by the invention, an activated carbon product prepared by the method has abrasion resistance and micropore porosity which are equivalent to those of the raw material activated carbon; and furthermore, the mesopore porosity is further increased in comparison with the raw material activated carbon, and the activated carbon has the advantages of double aperture distribution, large specific surface area and high abrasion resistance, and can meet the application requirements under specific conditions.

The invention discloses a foamed glass material for purifying water, and a preparation method thereof. Waste glass bottles undergo a series of treatments through special techniques to form the foamedglass material for purifying water, that is foamed micro-porous silicon pumice with an aperture of 1-4 mm, a water absorption rate of 5-10%, a stress of 1200-3000 N and a specific gravity of 0.5-0.8 g / ml. A foaming mixture is calcined at a high temperature to prepare the foamed glass material, and the foaming mixture includes 90-93 wt% of glass powder, 0.4 wt% of seashell powder having a particlesize of 2-4 mm, 0.6 wt% of seashell powder having a particle size of 1 mm or less and 0.2-1.0 wt% of activated carbon. The foamed microporous silicon pumice has the advantages of durability, high performances, non-toxicity, harmlessness, non-radioactivity, good chemical stability, good corrosion resistance, good weather resistance, insolubility and non-degradability, and the ammonia nitrogen, biochemical oxygen demand, chemical oxygen demand and other indicators of sewage treated with the foamed glass material are significantly reduced.

The invention discloses a novel disc pelletizing and sintering pellet binder and a preparation method thereof, the novel disc pelletizing and sintering pellet binder comprises calcium oxide, magnesium oxide, a tackifier, a water reducing agent and an organic high-molecular polymer, and the novel disc pelletizing and sintering pellet binder comprises the following components in percentage by mass: 40-52% of calcium oxide, 3-10% of magnesium oxide, 3-5% of the tackifier, 8-12% of the water reducing agent and 33-38% of the organic high-molecular polymer. The organic high-molecular polymer is set to be a water-soluble organic high-molecular polymer, the organic high-molecular polymer becomes a high-viscosity liquid after encountering water, the addition proportion is set to be 1-2% when the novel disc pelletizing and sintering pellet binder is used, and the optimal addition proportion is set to be 1.6% when the novel disc pelletizing and sintering pellet binder is used. When the novel binder is used, the quality of finished product pellets adopting the novel binder is superior to that of pellets prepared by adding bentonite. And by matching the novel binder, the pellet quality can be improved, the system cost before iron making is reduced, and conditions are created for improving the blast furnace productivity.

The invention relates to a wound filling dressing for the closed negative pressure drainage of a surgical wound as well as a preparation method. The wound filling dressing mainly comprises a vegetable sponge matrix, micropore fabrics, a semi-transparent film and a negative pressure drainage duct, wherein the vegetable sponge matrix is matched with the wound in the shape, the micropore fabrics arerespectively arranged on the upper surface and the lower surface of the vegetable sponge matrix or wrapped on the surface of the vegetable sponge matrix, the semi-transparent film covers the upper surface of the vegetable sponge matrix to take the closing and fixing action, and the negative pressure drainage duct is inserted in the vegetable sponge matrix. The invention has low cost, simple structure, convenience of manufacture and low raw material and manufacture costs being only about one percent of a similar product, and can greatly decrease the medical cost and accordingly be favorable tothe popularization of a closed negative pressure suction technology.

The present invention discloses a molecular sieve biological preparation and a preparation method thereof, and belongs to the technical field of biological preparations. The molecular sieve biologicalpreparation comprises the following raw materials in percentages by weight: 40-50% of clinoptilolite molecular sieves, 0.2-2% of probiotics, 5-10% of a biological nutrient, 10-20% of medical auxiliary materials and 20-40% of mineral water. The probiotics, biological nutrient, medical auxiliary materials and mineral water are prepared into a probiotic hydrate, the clinoptilolite molecular sieves are added, and low-temperature incubating, vacuum drying, crushing and packaging are conducted to obtain the molecular sieve biological preparation. The probiotics grow and breed in pore passages in amicro-pore structure of the clinoptilolite molecular sieves, the probiotics of different sizes are fully protected, and the probiotics withstand harsh environments of strong alkali, high temperature,low temperature, etc., are not killed by gastric acids in a strong gastric acid environment, and smoothly pass a strong acid corrosion of stomach and enter into intestinal tracts. The molecular sievebiological preparation improves an intestinal flora balance, improves an intestinal environment, and promotes digestion and absorption.

The invention provides a soil ventilation improving synergist containing iron tailings and a preparation method thereof. The soil ventilation improving synergist comprises, by weight, 1 part of tailings, 0.01-0.1 part of crop straws and 0.01-0.1 part of polyvinyl alcohol. After the soil ventilation improving synergist is added into the soil, soil trace elements can be added, soil aggregate is increased, porosity of the soil is increased, soil ventilation is improved, and improvement of activity of microorganisms and enzyme in the soil is promoted. Hydroxyl on a polyvinyl alcohol high molecular chain on the surface of a tailings particle can be attached to soil particles, and soil aggregate and fine pores of the soil are further increased. Crop straw particles processed through decomposing can improve a biochemical property of cohesive soil, provides abundant organic substances for the soil, stimulates the microorganisms in the soil to grow and move, and improves fertilizer retaining and fertility improving capacity of the soil. The soil ventilation improving synergist is low in cost, simple in preparation process, favorable for popularizing. Simultaneously, double effects of chemical modification and physical modification are achieved simultaneously, and the effects are remarkable.

The invention discloses a preparation method of mesoporous ceramic. The mesoporous ceramic is prepared by taking a traditional pore-forming agent clad with an organic metal framework compound as a novel ceramic pore-forming agent, wherein the organic metal framework compound is a coordination polymer, has a three-dimension porous structure and is a high-stability mesoporous material taking metal ions as connection points; meanwhile, the surface of the traditional pore-forming agent is subjected to polydopamine membrane cladding treatment to improve the complexation of the metal ions on the surface of the traditional pore-forming agent, thereby realizing the high-efficient cladding of the organic metal framework compound. The novel pore-forming agent has good pore-forming capability equal to that of the traditional pore-forming agent, and also endows traditional ceramic pores with multidimensional mesoporous structures, the micropore performance of ceramic is obviously improved, and a prepared ceramic product is higher in porosity and more uniform; in addition, the metal ions can be converted into metal or metal compounds in a sintering process, so as to further improve the comprehensive performance of a ceramic body.

The invention belongs to the field of photocatalysis, and relates to a photocatalytic film, in particular to a preparation method of a copper sulphide-zinc oxide composite photocatalytic film, the composite photocatalytic film is composed of a zinc oxide film and a copper sulphide film, and a zinc oxide-copper sulphide composite layer is formed on the connecting surface of the zinc oxide film and the copper sulphide film; the invention also provides the corresponding preparation method. The defects that existing zinc oxide is small in response interval, high in recombination speed and the like are overcome, visible light is converted into an ultraviolet light area through zinc sulfide of the composite layer, corresponding requirements of zinc oxide are met, meanwhile, zinc sulfide rapidly transmits electrons of zinc oxide, combination of holes and the electrons is slowed down, and through electron transfer, copper sulfide and zinc oxide are promoted to form a synergistic effect based on electron transfer.