41 results about "Tetradecyltrimethylammonium bromide" patented technology

The invention provides hydrotalcite-loaded nanometer platinum catalyst as well as a preparation method and application thereof. The preparation method of the hydrotalcite-loaded nanometer platinum catalyst comprises the following steps of: preparing magnesium-aluminum hydrotalcite crystal nucleus by utilizing an all-return liquid mixing membrane reactor, dispersing the crystal nucleus in an aqueous solution; adding an chloroplatinic acid aqueous solution and tetradecyl trimethyl ammonium bromide (TTAB) as well as a proper proportion reducing agent of NaBH4; controlling the reducing velocity and the growth of Pt nanometer particles by utilizing the protecting and stabilizing effect of the TTAB to the Pt<4+> ion; and gradually crystallizing the hydrotalcite while reducing the Pt<4+> ion to obtain the hydrotalcite-loaded nanometer platinum catalyst. The catalyst is obtained by loading nanometer particles on a hydrotalcite carrier, wherein the chemical formula of the hydrotalcite is as follows: MgxAly(OH)16CO3 nH2O; the platinum nanometer particle dimension is 2 nm-8nm; the nanometer particles are polyhedral or ellipsoidal in appearance; the loading capacity of the platinum is 0.5%-3%; and the dispersion degree on the carrier is 20%-50%. The hydrotalcite-loaded nanometer platinum catalyst can be used for catalytic hydrogenation reaction of unsaturated aldehyde (cinnamyl aldehyde), wherein water is used as solvent, the conversation rate of the reactant cinnamyl aldehyde is 75%-95% and the selectivity of the product cinnamyl alcohol is 75%-95%.

The invention discloses a nanoparticle enhanced low-interfacial-tension foam system and a preparation method thereof. The foam system comprises the following components by weight percent: 0.2-0.8% ofa cationic surface active agent, 0.01-0.1% of a stabilizer, 0.5-1.0% of a polymerization inhibitor, 0.3-1.0% of an additive and the balance of mineralized water, wherein the cationic surface active agent is selected from dodecyl trimethyl ammonium bromide, tetradecyl trimethyl ammonium bromide, hexadecyl trimethyl ammonium bromide and stearyl trimethyl ammonium bromide; the stabilizer is selectedfrom modified nano-SiO2, modified nano-MgO and modified nano-TiO2; the polymerization inhibitor is sodium citrate; the additive is selected from ethylene glycol and dodecanol; the mineralized water isa mixed water solution of sodium chloride, anhydrous calcium chloride and anhydrous magnesium sulfate. The nanoparticle enhanced low-interfacial-tension foam system is good in foaming performance andfoam stabilizing performance, high in interfacial activity, cheap and easily accessible in raw material, simple in preparation method and excellent in foam combination performance.

The invention relates to an aqueous coating composition of nano cellulose (e.g., microfibrillated cellulose), characterized in that has a dry matter concentration of 2%-12% of nano cellulose and comprises at least one cationic surfactant, which may be chosen among Hexadecyltrimethyl-ammonium bromide, Octadecyltrimethyl-ammonium bromide, Hexadecylpyridinium chloride and Tetradecyl trimethyl-ammonium bromide, Dodecyl pyridinium chloride. The invention also pertains to use of the composition as a coating layer and as an oxygen barrier layer. Further it relates to substrates, e.g., board, cardboard or paper coated with the composition. Moreover, the invention pertains to a process for preparing the coating composition.

A cleaning composition for treating and removing residue containing hydrocarbons and other flammable substances uses a mixture of one or more cleaning members containing quaternary salts, a chelator and a dispersant, mixed with water. The preferred cleaning members are tetradecyltrimethylammonium bromide, tetrasodium ethylenediaminetetraacetic acid, benzethonium hydrochloride and 2-butoxyethanol. The chelator is tetrasodium salt ethylenediamine of tetraacetic acid, and the dispersant is polyvinyl alcohol. Optionally, the cleaner contains ethanol and isopropyl alcohol.

The invention discloses an early-strength high-performance polycarboxylic acid water reducer and a preparation method thereof. The early-strength high-performance polycarboxylic acid water reducer is prepared from the following raw materials in parts by weight: 100 parts of polycarboxylic acid water reducer, 10-15 parts of a retarder, 12-16 parts of a diethanolisopropanolamine maleate compound, 8-10 parts of diethanolisopropanolamine, 8-12 parts of sodium lignosulfonate, 3-5 parts of 2-ethyl-4-methylimidazol, 0.5-1.5 parts of tetradecyl trimethyl ammonium bromide, 10-20 parts of sodium metasilicate pentahydrate, and 250-450 parts of water. The early-strength high-performance polycarboxylic acid water reducer prepared by the method disclosed by the invention has excellent properties of low applicable temperature, good compatibility among components, no chloride ions, low shrinkage ratio, high water-reducing rate, good slump retaining effect, and low mixing amount.

A wood preservative composition for treating wood to impart biocide and antimicrobial characteristics to wood contains a mixture of one or more cleaning members containing quaternary salts, an aromatic quaternary salt, a copper sulfate, a glycol ether and a chelator, mixed with water. The preferred active members are tetradecyltrimethylammonium bromide, tetrasodium ethylenediaminetetraacetic acid, benzethonium hydrochloride, copper sulfate pentahydrate and 2-butoxyethanol. The chelator is tetrasodium salt ethylenediamine of tetraacetic acid (EDTA).

The invention relates to a preparation method of a viscoelastic surfactant solution which contains a trimeric anionic surfactant component and is obtained by compounding of anionic and cationic surfactants. The structural of the main component, an anionic surfactant, is as shown in the specification. The cationic surfactant can be any one of dodecyltrimethylammonium bromide (DTAB), tetradecyltrimethylammonium bromide (TTAB) or cetyltrimethylammonium bromide (CTAB). The longer the hydrophobic chain length of the cationic surfactant is, the more excellent the effect of the viscoelastic solution formed by the cationic surfactant and the trimeric anionic surfactant is. Preparation of the surfactant solution comprises two main processes, namely synthesis and compounding of trimeric surfactants. The compounded surfactant solution at low concentration shows the main characteristic of elasticity. The solution can be gel-like and can be applied in the formula of an oilfield fracturing fluid, a drag reducer and a daily cleaning agent.

The production process of hemolytic agent for hemocyte analyzer includes the following steps: water processing via filtering in high pressure reverse osmosis membrane and ion exchange with resin to obtain water with resistivity greater than 10 megaohm / cm, adding and dissolving ammonium dodecyl trimethyl chloride under stirring and cooling to 15-30 deg.c, adding ammonium tetradecyl trimethyl bride, adding potassium cyanide and other material, sterilizing, filtering and packing. The hemolytic agent has high quality and long storing life up to 2 years.

The invention discloses a preparation method of a composite petroleum fracturing propping agent, and belongs to the technical field of fracturing propping agents. The preparation method comprises the following steps: respectively selecting bauxite, mullite, manganese dioxide, ferric oxide and dolomite, carrying out ball milling, sieving the ball-milled materials to obtain mixed powder, mixing the mixed powder with a sodium hexametaphosphate solution to obtain a suspension, dropwise adding a tetradecyl trimethyl ammonium bromide solution, stirring the tetradecyl trimethyl ammonium bromide solution and the suspension to obtain a mixed solution, adding acid-modified vermiculite to the mixed solution, aerating the mixed solution, carrying out ultrasonic vibration, centrifuging the obtained solution to obtain a precipitate, drying the precipitate, carrying out high temperature calcining on the dried precipitate in a sintering kiln to obtain a calcined substance, and carrying out dry ice cooling to the fracturing propping agent. The fracturing propping agent prepared in the invention has the advantages of good compressive strength, high fragmentation resistance, low density and low production cost.

The invention provides a method for preparing carbon micro-spheres by using coal as a raw material, and belongs to the technical field of coal made carbon materials with high additional values. The method comprises the following steps of: taking a product obtained through the reaction of the coal, sodium hydroxide and methanol as a carbon source, dissolving the reaction product carbon source into aqueous solution of ethanol, then adding a dodecyl trimethyl ammonium bromide or tetradecyl trimethyl ammonium bromide or hexadecyl trimethyl ammonium bromide directing agent into the solution to obtain a mixture, blending the mixture uniformly and filling the mixture into a reaction kettle, heating the mixture to between 300 and 700 DEG C in a heating furnace, stopping heating after the mixture is reacted for 6 to 24 hours, naturally cooling the reaction product to room temperature, washing the reaction product by using ethanol and then deionized water, and finally drying the reaction product to obtain black powdery carbon micro-spheres. The carbon micro-sphere product obtained by the method has high purity, the purity can reach 95 percent, and the average grain diameter of the product is 5 to 10 microns. The method has the characteristics of low-cost and easily obtained raw materials, easy operation, simple process, good reproducibility and suitability for scale production.

The invention discloses a total bilirubin measuring kit. The total bilirubin measuring kit is a liquid composed of a reagent R1 and a reagent R2; citric acid is selected and can well ensure the pH value of a whole specimen preprocessing system; EDTA-Na2 is used for eliminating interference caused by divalent metal ions in a measurement process; four surfactants, namely lauryl betaine, polyethyleneglycol monooleyl ether, hexadecyl trimethyl ammonium bromide and tetradecyl trimethyl ammonium bromide are added, and hydrazine dihydrochloride is added into the reagents to further eliminate interference caused by non-bilirubin substances, so that false positives of measurement data are avoided; sodium nitrite is added to directly oxidize bilirubin into biliverdin, but the selected amount of sodium nitrite is quite small so that it can be ensured that in a whole reaction process, not only can bilirubin be completely converted, but also little residual sodium nitrite exists to avoid reactionbetween surplus sodium nitrite and the other substances; sodium chloride is added to adjust the ion concentration and control reaction speed; added Porlin 300 serves as a biological preservative and not only cannot form interference with the reaction substances but also can prevent bacteria from converting nitrite into nitrate.

The invention discloses a method for synthesizing MCM-48 mesoporous silica. The method utilizes tetradecyl trimethyl ammonium bromide (C14TAB) and 2-hydroxyl-3-naphthoic acid (NaHN) as template agents and sodium silicate (Na2SiO3.9H2O) as a silicon source. The method comprises the following synthesizing steps: completely dissolving C14TAB into water and then adding NaHN; additionally taking Na2SiO3.9H2O to be completely dissolved into water; then quickly mixing two kinds of solution, stirring for 20 minutes in room temperature and then adding 2mol / L sulfuric acid drop by drop; transferring a mixture into 100 DEG C water in a high-pressure kettle, heating for 48 hours, filtering, washing and putting in air to be dried; then roasting for 6 hours in a 560 DEG C muffle furnace to remove organic matter to obtain a product. Raw material ratio of C14TAB / NaHN / Na2SiO3.9H2O / H2SO4 / H2O is 1 : (0.15 to 0.27) : 30 : 30 : 900. The raw materials of the C14TAB, the NaHN and the Na2SiO3.9H2O utilized by the method disclosed by the invention are easy to obtain, so that production cost is greatly reduced. A fluorine-containing additive is avoided in a production process, so that environmental friendliness is achieved, a product is high in order degree and uniform in pore diameter, and large-scale industrial production is facilitated.

The invention relates to the field of refractory materials, and discloses a two-component refractory brick and a production method thereof. The brick is produced from a slurry A and a slurry B; the slurry A includes fused chromium oxide, sintered chromium oxide particles, chrome corundum particles, alumina micro-powder, magnesium oxide micro-powder, zirconia micro-powder, yttrium oxide micro-powder, lanthanum and / or lanthanide metal oxide micro-powder, metallic aluminum micro-powder, metallic chromium micro-powder, metallic zirconium micro-powder, metallic yttrium micro-powder, resorcinol diglycidyl ether, sodium dodecyl benzene sulfonate, ethanol and water; and the slurry B includes the fused chromium oxide, sintered chromium oxide particles, chrome corundum particles, alumina micro-powder, magnesium oxide micro-powder, zirconia micro-powder, yttrium oxide micro-powder, lanthanum and / or lanthanide metal oxide micro-powder, metallic aluminum micro-powder, metallic chromium micro-powder, metallic zirconium micro-powder, metallic yttrium micro-powder, a cationic photocuring initiator, tetradecyltrimethylammonium bromide, ethanol and water. The two slurries are adopted to reduce the use amount of a binder and improve the physical properties of the refractory brick.

The invention belongs to the technical field of plastic, and particularly relates to environment-friendly antibacterial ABS plastic and a preparation method thereof.The environment-friendly antibacterial ABS plastic comprises an ABS plastic layer, the upper surface of the ABS plastic layer is covered with a second protective layer, and the upper surface of the second protective layer is covered with a first protective layer; the ABS plastic layer is prepared from the following components in parts by weight: 75-80 parts of regenerated ABS particles, 30-45 parts of organic silicon rubber, 25-40 parts of polylactic acid, 15-25 parts of modified montmorillonite, 6-10 parts of a composite antibacterial agent, 3-8 parts of a heat-resistant agent, 3-6 parts of a dispersing agent, 2-4 parts of a silane coupling agent, 2-3 parts of an antioxidant and 1-3 parts of a plasticizer; by using hectorite / tetradecyl trimethyl ammonium bromide / chitosan as the composite antibacterial agent, the antibacterial effect is remarkable, the sterilization speed is high, the antibacterial spectrum is wide, the safety is high, the performance stability is good, and the service life is long.

The invention discloses an insect-proof garbage bag and a preparation method thereof, and belongs to the field of product packaging. Chlorogenic acid is used as a raw material to obtain an anti-deterioration activator, wherein chlorogenic acid has antioxidant properties, prevents oxygen from entering the garbage bag, prevents oxidative deterioration of garbage from producing rancid smell and attracting mosquitoes, alleviates garbage corruption and makes the mosquitoes under control; with active substances such as folium artemisiae argyi essential oil, clove essential oil and litsea cubeba essential oil as raw materials, the insect-proof garbage bag has anti-corrosion, anti-mildew and anti-bacterial effects, and reduces mosquito reproduction from the source; tetradecyl trimethylammonium bromide and p-phenyldimethylaminopyridine are used as raw materials, then polylactic acid and the like are added and blended with the raw materials, the film-blowing density of the garbage bag is increased, the density of the garbage bag is increased, the leakage of garbage is prevented, the mechanical properties of the garbage bag are improved, and the tensile strength is improved. The problems thata garbage bag can breed a large number of microorganisms and cause mosquitoes at present are solved.

The invention belongs to the technical field of molecular sieves, and particularly relates to a lamellar MWW molecular sieve as well as a preparation method and application thereof. The invention discloses a preparation method of a lamellar MWW molecular sieve. Dodecyltrimethylammonium bromide, tetradecyltrimethylammonium bromide and / or hexadecyltrimethylammonium bromide are / is used as a swellingagent, by that the first product can be swelled and pillared; the MWW molecular sieve is modified into a two-dimensional layered structure, so that mesoporous channels are introduced between layers, the interlayer spacing of the obtained lamellar MWW molecular sieve is 2.5 to 4.7 nm; in addition, the outer surface area of the lamellar MWW molecular sieve is increased, the utilization rate of active sites is increased, and carbon deposit inactivation can be reduced. Experimental results show that the lamellar MWW molecular sieve prepared in the invention can significantly improve the conversionrate of benzyl alcohol and the selectivity of 2-benzyl-1,3,5-trimethylbenzene as an alkylation reaction catalyst.

The invention discloses a preparation method of ion-pair chromatographic-grade tetradecyl trimethyl ammonium bromide. The preparation technology is characterized by comprising the steps that a tetradecyl trimethyl ammonium bromide raw material is put into a solvent, heating is conducted to 55-60 DEG C, stirring is conducted for 1h or longer, and heating is stopped; under the stirring condition, pretreated activated carbon is added to the obtained solution in batch, heating reflux is conducted, sufficient stirring is conducted for 3-8 h, heating is stopped, pressure reduction and suction filtration are conducted, a filtrate is cooled to the room temperature and transferred to a crystallizer, and standing and crystallization are conducted; separated white crystals are filtered and separated,a filter cake is press-dried, the crystals are collected, drying is conducted, and the ion-pair chromatographic-grade tetradecyl trimethyl ammonium bromide is obtained and subjected to sealing packaging under nitrogen protection. The method is easy, convenient and quick to operate and efficient.

The invention relates-the field of refractory materials, and discloses a high-strength fireproof crucible and a production method thereof. The crucible is produced from a mud material and additives; the mud material comprises 55-65 parts of magnesium ores, 5-15 parts of zirconia, 5-15 parts of fused magnesia, 5-15 parts of waste graphite micro-powder, 1-5 parts of metallic magnesium micro-powder,1-5 parts of chromium oxide micro-powder, 0.3-0.5 part of resorcinol diglycidyl ether, 0.1-0.3 part of sodium dodecyl benzene sulfonate, 20-30 parts of ethanol and 10-20 parts of water; and the additives include 0.05-0.1 part of a cationic photocuring initiator, 0.05-0.2 part of tetradecyltrimethylammonium bromide, 3-7 parts of ethanol and 3-7 parts of water. The reduction of the use amount of theadditives effectively increases the strength of the crucible. A crucible blank is pre-cured through a photocuring technology before being sintered in order to effectively prevent the cracking of thecrucible.

The invention discloses methanol diesel fuel, prepared from the following components in terms of parts by weight: 680 to 730 parts of diesel fuel, 140 to 160 parts of methanol, 25 to 30 parts of diethoxymethane, 6 to 8 parts of dimethylacetamide, 10 to 12 parts of secondary alcohol ethoxylate, 13 to 15 parts of caprylic capric triglyceride, 12 to 15 parts of myristyltrimethylammonium bromide, 30 to 50 parts of propylene glycol monomethyl ether, 3 to 4 parts of sec-butyl acetate, 12 to 15 parts of coconut oil amine polyoxyethylene ether, 15 to 18 parts of propargyl alcohol and 4 to 5 parts of nano-magnesium hydroxide. The methanol diesel fuel disclosed by the invention has the features of homogeneous phase, transparency, stable property and long storage period, and can be widely applied to vehicles, boilers, ships and the like. The methanol diesel fuel disclosed by the invention has the advantages that the effects of obvious energy saving, obvious environmental friendliness and excellent combustion performance are achieved; especially compared with conventional #0 diesel fuel, the maximum firing pressure in an cylinder is increased, the combustion timing is delayed, the peak value of heat releasing rate is increased, and the PM (Particulate Matter) emission is obviously reduced at the same time.

The invention discloses high heat dissipation mobile phone charger casings. The high heat dissipation mobile phone charger casings comprise the following raw materials in parts by weight: 80-100 partsof polyvinyl chloride, 20-30 parts of ethylene propylene diene monomer, 1-2 parts of acetyl tributyl citrate, 2.5-4.5 parts of compatibilizer, 2-4 parts of dibenzoyl peroxide, 0.4-0.8 part of dimethylbenzylamine , 45-55 parts of filler, 1.5-2.5 parts of antioxidant and 2-3 parts of light stabilizer, wherein the compatibilizer comprises, by weight, 10-14 parts of clay compound, 6-12 parts of sepiolite powder, 8-16 parts of rectorite powder, 4-8 parts of hollow glass microspheres, 3-6 parts of potassium titanate whisker and 3-6 parts of calcite powder; and the clay compound is prepared by usingthe following process: heating phospholipid and acetic acid with stirring, adding hydrogen peroxide with stirring, performing cooling, adjusting the system to be neutral, then adding clay, tetradecyltrimethylammonium bromide, silane coupling agent and water, heating the mixture to reflux with stirring, performing filtration, performing washing, and drying the filter cake to a constant weight to obtain the clay compound.

The invention relates to the field of refractory materials, and discloses a high-density refractory ceramic fiber and a preparation method thereof. The ceramic fiber is prepared by mixing an A ceramicslurry and a B ceramic slurry, wherein the A ceramic slurry comprises electrofused chromium oxide, zirconia, alumina micro powder, yttrium oxide micro powder, lanthanum and / or lanthanide metal oxidemicro powder, metal yttrium micro powder, tetradecyl trimethyl ammonium bromide, ethanol and water; and the B ceramic slurry comprises electrofused chromium oxide, zirconia, alumina micro powder, yttrium oxide micro powder, lanthanum and / or lanthanide metal oxide micro powder, metal yttrium micro powder, sodium dodecyl benzene sulfonate, binding agent, ethanol and water. According to the high-density refractory ceramic fiber, the using amount of the binding agent is greatly reduced, and the density of the ceramic fiber is effectively increased, therefore, the ceramic fiber has a higher strength.

The invention provides a method for preparing carbon micro-spheres by using coal as a raw material, and belongs to the technical field of coal made carbon materials with high additional values. The method comprises the following steps of: taking a product obtained through the reaction of the coal, sodium hydroxide and methanol as a carbon source, dissolving the reaction product carbon source intoaqueous solution of ethanol, then adding a dodecyl trimethyl ammonium bromide or tetradecyl trimethyl ammonium bromide or hexadecyl trimethyl ammonium bromide directing agent into the solution to obtain a mixture, blending the mixture uniformly and filling the mixture into a reaction kettle, heating the mixture to between 300 and 700 DEG C in a heating furnace, stopping heating after the mixture is reacted for 6 to 24 hours, naturally cooling the reaction product to room temperature, washing the reaction product by using ethanol and then deionized water, and finally drying the reaction product to obtain black powdery carbon micro-spheres. The carbon micro-sphere product obtained by the method has high purity, the purity can reach 95 percent, and the average grain diameter of the product is 5 to 10 microns. The method has the characteristics of low-cost and easily obtained raw materials, easy operation, simple process, good reproducibility and suitability for scale production.

The invention discloses a pH control type viscoelastic solution constructed by compounding anion / cation surfactants and its preparation method and application: the viscoelastic solution system is prepared by compounding anion and cation surfactants, wherein the anion surfactant is horse Any one of sodium lepimarate dodecimide, sodium maleopimarate tetradecimide, and sodium maleopimarate hexadecanimide, and the cationic surfactant is dodecyltrimethyl Any one of trimethylammonium bromide (DTAB), tetradecyltrimethylammonium bromide (TTAB), and cetyltrimethylammonium bromide (CTAB). The viscoelasticity of the system can be controlled within the pH range of 1.7~14, which has the characteristics of a gel, and the zero-shear viscosity of the viscoelastic solution can reach 295.2 Pa·s. The invention also discloses the application of the viscoelastic solution in single-layer carbon nanotube (SWNT), and the prepared SWNT dispersion liquid has good uniformity and long stable time.

The invention relates to a preparation method of a viscoelastic surfactant solution obtained by compounding anionic and cationic surfactants containing trimeric anionic surfactant components, wherein the structure of the main component anionic surfactant is as follows: wherein the cationic surfactant The active agent can be any one of dodecyltrimethylammonium bromide (DTAB), tetradecyltrimethylammonium bromide (TTAB) or cetyltrimethylammonium bromide (CTAB) . The longer the hydrophobic chain length of the cationic surfactant, the better the effect of the viscoelastic solution formed with the trimeric anionic surfactant. The preparation of the surfactant solution includes two main processes of synthesis and compounding of the trimeric surfactant. The compounded surfactant solution shows the characteristics of elasticity at low concentration, and the solution can show a gel-like shape, which can be applied to oil field fracturing fluid, drag reducer and daily cleaning agent formulation.

The invention discloses a thermal insulation material for buildings. The composite material is prepared from the following raw materials in parts by weight: 9-15 parts of montmorillonite, 3-7 parts ofa hydrochloric acid solution, 3-10 parts of a silane coupling agent, 0.5-1.5 parts of tetradecyl trimethyl ammonium bromide, 12-22 parts of polyvinyl chloride, 6-13 parts of a titanate coupling agent, 2-8 parts of silk fibers, 7-15 parts of modified polyurethane, 6-13 parts of natural rubber, 0.5-2 part of montan wax, 10-15 parts of a Ca / Zn composite stabilizer, 4-10 parts of gamma-aminopropyltriethoxysilane, 1-3 parts of polyethylene wax, 5-9 parts of zinc stearate, 1-2 parts of 2-mercaptoethyltriethoxysilane, 0.3-0.7 part of 3-sulfopropyl hexadecyl dimethyl ammonium, 8-17 parts of perlite,30-50 parts of diatomite and 15-30 parts of bentonite. The scheme has good heat preservation and heat insulation effects, further improves the formaldehyde adsorption effect of the heat insulation material on the basis of ensuring the heat insulation and heat preservation effects, has the properties of freezing resistance, heat resistance, wear resistance, thermo-oxidative aging resistance and thelike, effectively improves the adaptive capacity to the environment, and ensures the normal service life of the thermal insulation material for the building.

The invention discloses a method for synthesizing high-purity hexagonal columnar silicon dioxide nanoporous material, which comprises dissolving template agent tetradecyltrimethylammonium bromide in deionized water at 27°C, stirring until the solution is clarified, and then adding Ammonia solution with a mass fraction of 25-28%, after continuing to stir for 10 minutes, add tetraethyl orthosilicate dropwise, stir while adding, the molar ratio of tetraethyl orthosilicate and template agent is 1:0.152, the mixture is in React at 27°C for 1 hour, and control the pH value of the reaction mixture at 10.6-10.8; put the reacted solution into a hydrothermal reaction kettle, then place the hydrothermal reaction kettle in a blast oven to dry, filter and wash to obtain a solid powder , drying, putting the dried sample into a tube furnace to calcinate to remove the template agent, and obtain hexagonal columnar nanoporous silica materials, all of which are hexagonal columnar and uniform in size.

The invention discloses a method for removing pollutants in water by micro-electrolysis enhanced flotation. The method comprises the following steps: an iron-manganese-carbon material is used as a micro-electrolysis raw material and a phase-state adjusting agent, a filling flotation column is used as a separation reactor, the micro-electrolysis raw material is filled in the flotation column, pollutant-containing water is introduced into the flotation column, after a reaction is performed for a period of time, a surfactant is added into the flotation column for enhanced flotation separation ofthe pollutants in the water, wherein the iron-manganese-carbon material comprises the following components, in parts by mass: 80-90 parts of iron powder, 8-15 parts of manganese powder, 2-5 parts of carbon powder, 15-20 parts of bentonite and 3-5 parts of ammonium bicarbonate; and the surfactant comprises the following components, in parts by mass: 20-40 parts of tetradecyl trimethyl ammonium bromide, 30-35 parts of single-chain N-alkylbenzimidazole, 10-15 parts of carboxylic acid type imidazoline phosphate, 5-10 parts of humic acid, and 15-20 parts of alginic acid. The method provided by theinvention can effectively remove organic and inorganic pollutants in the water at the same time, and has engineering application value.