142 results about "Benzalkonium chloride solution" patented technology

The invention belongs to the technical field of personal hygiene products, and particularly relates to a nursing wet tissue which comprises a non-woven fabric body and formula production liquid, and the front end of the non-woven fabric body is provided with an opening; the formula production liquid comprises the following components: glycerol, propylene glycol, menthol, PEG-40 hydrogenated castor oil, benzalkonium chloride, phenoxyethanol, an aloe vera leaf extract, citronella oil, eucalyptus oil, bisabolol, G2833 (S) Baogoli LW-210060 and the balance of deionized water, wherein the total percentage of the components is 100%. According to the nursing wet tissue, in a sports scene, the nursing wet tissue can be fixed during use through the design of the opening and is prevented from sliding off; volatile oil components in menthol and peppermint oil in the formula production liquid can penetrate into the skin and act on pores, the pores can be effectively shrunk, the aperture of the pores is reduced, and therefore the chance that external dirt and grease enter the pores is reduced.

This invention relates to the field of water treatment technology, specifically to a reverse osmosis membrane cleaning agent composed of a non-oxidizing bactericide and an enzyme, and its application. Its main purpose is to remove biofouling from reverse osmosis membranes and restore membrane flux. This patent discloses a novel reverse osmosis membrane cleaning agent formulation. Considering the different pH requirements of the cleaning agent in actual production, different types of bioactive hydrolytic enzymes are selected to disrupt the structure of bacterial cell walls and their extracellular polymers. A reducing agent and a non-oxidizing bactericide are combined to enhance the cleaning effect of the reverse osmosis membrane. For different cleaning purposes, non-oxidizing bactericides suitable for acidic and alkaline cleaning are formulated. Sodium benzoate and benzalkonium chloride show good application prospects in the removal of reverse osmosis membrane fouling.

The invention discloses a benzalkonium chloride microbial limit counting inspection method, which relates to the technical field of microbial inspection, and comprises the following steps: firstly, preparing a test solution; wetting the filter membrane with the flushing fluid to obtain a rinsed filter membrane; different amounts of test solutions are taken and added into the flushing fluid, and a first mixed solution and a second mixed solution are obtained respectively; respectively filtering the mixed solution I and the mixed solution II through a rinsed filter membrane to obtain a filtered filter membrane I and a filtered filter membrane II; respectively flushing the filtered filter membrane I and the filtered filter membrane II with flushing fluid, and counting and checking the total number of aerobic bacteria through the flushed filter membrane I; counting and checking the total number of mould and saccharomycetes through the flushed filter membrane II; according to the benzalkonium chloride microbial limit counting inspection method, the application range is expanded, the total flushing amount is smaller, the flushing frequency is smaller, the error possibility in the test process is reduced, and the result is real, accurate and effective.

A cleansing wet wipe in which a base paper sheet is impregnated with a chemical liquid. The chemical liquid contains at least iodopropynyl butylcarbamate, polyamino-propyl biguanide, benzalkonium chloride, and cetylpyridinium chloride; and the content value for the iodopropynyl butylcarbamate in the chemical liquid is 0.005-0.02 mass % inclusive. The chemical liquid is adjusted to be acidic.

The invention discloses a quaternary ammonium salt type composite algaecide for preventing and controlling harmful algae in a reservoir water body and a preparation method of the quaternary ammonium salt type composite algaecide. According to the preparation method, gemini quaternary ammonium salt (dichlorinated 1, 1 '-([1, 1'-biphenyl]-4, 4 '-diyl) bis (N-benzyl-N, N-dimethyl ammonium), dichlorinated N, N'-([1, 1 '-biphenyl]-4, 4'-diyl bis (methylene)) bis (N, N '-(1, 1'-biphenyl]-4, 4 '-diyl bis (methylene)) is utilized to react with N, N'-(1, 1 '-biphenyl]-4, 4'-diyl) bis (N-benzyl-N, N- According to the present invention, N, N-dimethylpyridine-4-amine), dodecyl dimethyl benzyl ammonium bromide, dodecyl dimethyl benzyl ammonium chloride, hexadecyl dimethyl benzyl ammonium chloride, benzalkonium chloride, isothiazolinone and derivatives thereof are respectively subjected to synergistic algal inhibition, and are used for inhibiting common algal blooms in reservoir water. The quaternary ammonium salt type composite algaecide has a higher removal rate on harmful algae (such as microcystis aeruginosa) in a water body of a reservoir, can effectively control water bloom caused by the harmful algae in the water body, and is simple to prepare and good in algae removal effect.

A highly stable acidifed formula of Crotoxin comprising saline and benzalkonium chloride, and optionally Thiamine, is disclosed that facilitates the therapeutic use of Crotoxin. Also disclosed is a method of preparing a highly stable formula of Crotoxin.

The ophthalmic composition according to the present invention contains: (A) 0.01-0.5 w / w% of a copolymer having structural units represented by formulae (1a)-(1c), the molar ratio of the structural units being a: b: c = 100: 10-400: 2-50, and the weight-average molecular weight being 5,000-2,000,000; (B) from 0.001 w / w% to 0.02 w / w% (inclusive) of benzalkonium chloride; and / or (C) from 0.001 w / w% to 0.05 w / w% (inclusive) of chlorhexidine gluconate. According to the present invention, it is possible to provide an ophthalmic composition that protects corneal cells while exhibiting sufficient storage efficacy.

The invention discloses an oyster enzymolysis ultrafiltration extract nasal spray and a preparation method thereof, the nasal spray comprises the following components: 5-10 wt% of oyster extract, 0.1-0.3 wt% of preservative, 0.05-0.15 wt% of sodium chloride and 0.1-0.3 wt% of emulsifier, the pH value is 5.5-6.5, the content of the preservative is 0.1-0.3 wt%, the content of the sodium chloride is 0.05-0.15 wt%, the content of the emulsifier is 0.1-0.3 wt%, and the balance is water. The preservative is one of benzalkonium chloride, sorbic acid and potassium sorbate, and the emulsifier is polysorbate 80. Through definite raw material composition, a step-by-step process and quality control, the bioavailability of active components is improved, the flavor of the product is optimized, the effect of safely and efficiently improving sleep is achieved, the problems of low bioavailability, poor flavor and potential safety hazards of an existing sleep improving product are solved, the process repeatability is high, and the preparation method is suitable for industrial production. The long-term use of people with chronic insomnia is facilitated.

The foam type purification disinfectant is prepared from the following components in percentage by mass: 0.15 to 0.2 percent of benzalkonium chloride, 10 to 15 percent of a foaming agent, 0.6 to 1.5 percent of alkyl glycoside, 2 to 4 percent of polyvinyl alcohol, 0.7 to 1 percent of nano bentonite and the balance of water, wherein the foaming agent is prepared from short-chain alkyl hydroxyl sulphobetaine with the carbon number of 8 to 12 and long-chain alkyl hydroxyl sulphobetaine with the carbon number of 20 to 24. The components in the foam type purification disinfectant cooperate with one another, so that the foam type purification disinfectant has excellent sterilization and disinfection effects and cleaning effects, and is good in freezing resistance, high in practicability, convenient and rapid.

The invention belongs to the technical field of pharmaceutical preparations, and particularly relates to a traditional Chinese medicine compound antibacterial gel for promoting blood circulation to remove meridian obstruction and a preparation method thereof. The traditional Chinese medicine compound antibacterial gel for promoting blood circulation to remove meridian obstruction is prepared from the following components in percentage by mass: 0.01 to 0.03 percent of benzalkonium chloride, 0.02 to 0.05 percent of aromatic phenol acetate, 1 to 2.5 percent of propylene glycol, 0.01 to 0.05 percent of menthol, 0.3 to 0.6 percent of traditional Chinese medicine extracting solution, 0.01 to 0.05 percent of ginger root oil, 0.5 to 1 percent of pandan butyl ether, 0.01 to 0.05 percent of borneol, 0.3 to 5 percent of modified hydroxyethyl cellulose and the balance of water. The gel can relieve tissue edema and improve microcirculation and tissue oxygen supply; meanwhile, by combining with antibacterial components, the anti-infection effect can be synchronously achieved, the effects and advantages of promoting blood circulation and dredging collaterals of the traditional Chinese medicine compound are complementary, the better treatment effect is achieved, and the wound healing quality and speed are improved.

The invention provides a chlorine-containing disinfectant and a preparation method thereof, and belongs to the technical field of disinfectants. The disinfectant is prepared from bromochlorohydantoin, sodium dichloroisocyanurate, rosmarinic acid, octenidine, sodium hexametaphosphate, polyhexamethylene biguanidine hydrochloride, potassium monopersulfate, potassium chloride, dialkyl dimethyl ammonium chloride, laurocapram, squalane, carvacrol and benzalkonium chloride. The composition formula is constructed by taking bromochlorohydantoin and sodium dichloroisocyanurate as core components, the potassium monopersulfate has an efficient and broad-spectrum microbial inactivation effect, the squalane is originally used for moistening, moisturizing, resisting oxidation, regulating grease secretion and the like, and the potassium chloride has a broad-spectrum bactericidal effect, and is non-toxic and residue-free; after the components are compounded, a more prominent killing effect is shown. The disinfectant has a good surface sterilization effect, the killing rate reaches 99.999%, and the killing rate on spores and amoeba cysts also reaches 98% or above.

The application provides a content determination method of quaternary ammonium salt disinfectant: 1 mL is taken and placed in a 100 mL volumetric flask, diluted to the scale with a mobile phase, 1 mL is taken and placed in a 10 mL volumetric flask, diluted to the scale with a mobile phase, and a test sample solution is obtained; benzalkonium chloride control samples are taken, dissolved and quantitatively diluted with a mobile phase to prepare C12 substituted homologues and C14 substituted homologues solutions, which are used as benzalkonium chloride control sample solutions; decamethylquinolinium chloride control samples are taken, dissolved and quantitatively diluted with a mobile phase to prepare a solution, which is used as a decamethylquinolinium chloride control sample solution; the benzalkonium chloride and decamethylquinolinium chloride control sample solutions are taken, and a chromatogram is recorded; the logarithmic values of the control sample solution concentrations and the logarithmic values of the corresponding peak areas are calculated to obtain a corresponding linear regression equation; the test sample solution is taken, and the content of benzalkonium chloride and decamethylquinolinium chloride in the test sample is calculated by the linear regression equation.

This invention discloses a microcapsule, its preparation method, and its applications, belonging to the field of bioprotective materials. The microcapsule has a tertiary spherical or near-spherical particle structure, including a core layer, a shell layer covering the core layer, and satellite layers anchored to the outer surface of the shell layer. The core layer includes an active ingredient and a hydrophobic carrier medium. The shell layer is a cross-linked polyurethane-polyurea wall material formed by interfacial polymerization of polyisocyanate and polyols or polyamines containing hydrophilic segments. The satellite layers include active units and bridging and stabilizing units. The active units include benzalkonium chloride or benzyl chloride. The satellite layers exist in the form of nanoparticles or molecular clusters with a size of 10-150 nm. This invention, applied to bioprotective materials, solves the problem of efficient co-loading and intelligent sequential release of multipolar active substances in existing microcapsules. It possesses antiviral, antibacterial, antifungal, and anti-mite functions, a long service life, and features controllable and reproducible processes.

The invention relates to the technical field of hemostatic materials, in particular to composite hemostatic gel as well as a preparation method and application thereof. The composite hemostatic gel is prepared from the following components in percentage by mass: 0.5 to 3 percent of carboxymethyl chitosan, 0.5 to 5 percent of trehalose, 1 to 10 percent of glycerol, 0.1 to 2 percent of carbomer, 0.1 to 2 percent of recombinant blood coagulation factor III, 0.005 to 0.05 percent of benzalkonium chloride and the balance of Tris-HCl buffer solution. Based on the synergistic effect of a natural high polymer material carboxymethyl chitosan and a bioactive component recombinant blood coagulation factor III, the gel constructs a'physical adsorption-blood coagulation activation 'dual hemostasis pathway, realizes a rapid and multi-mechanism hemostasis function, has antibacterial and repair promoting characteristics, can be widely applied to various bleeding scenes such as cutting wounds and surgical wounds, and has wide application prospects. The wound healing is effectively promoted.

The invention relates to the technical field of disinfectants, in particular to a microorganism and nucleic acid removal material based on high-temperature stable sustained-release microspheres, a preparation method of the microorganism and nucleic acid removal material and application of the microorganism and nucleic acid removal material in a high-temperature condition. The microorganism and nucleic acid removal material based on the high-temperature stable sustained-release microspheres is prepared from an oil phase raw material, an inner water phase raw material and an outer water phase, the oil phase raw material comprises poly-L-lactic acid; the inner water phase raw material is a mixture of a cationic polymer and benzalkonium chloride; the cationic polymer comprises any two or three of polyhexamethylene biguanide, polyethyleneimine and chitosan. According to the invention, by optimizing the formula of the microorganism and nucleic acid removal material based on the high-temperature stable sustained-release microspheres, multiple advantages of high-temperature stability, efficient nucleic acid inactivation, accurate release, environmental friendliness, long-acting disinfection and the like are realized, and a brand-new, efficient and reliable solution is provided for the disinfection demand in a high-temperature environment.

The invention belongs to the technical field of functional membrane materials, and provides a preparation method of a cellulose ester-based asymmetric porous membrane capable of enhancing solvent steam response performance through heat treatment, cellulose is subjected to esterification modification by fatty acyl chloride containing C = C double bonds, and the cellulose ester-based asymmetric porous membrane is prepared by taking the cellulose ester-based asymmetric porous membrane as a construction unit and combining a cationic surfactant benzalkonium chloride. Self-assembly is realized in a tetrahydrofuran solution through a slow volatilization process of a solvent, and a novel membrane material with an asymmetric porous structure is successfully constructed; the membrane shows obvious pore size difference at the top and the bottom, the pore size at the top is 0.6-4.9 microns, the pore size at the bottom is mainly concentrated in a range of 0.8-1.5 microns, an asymmetric structure with double-sided pore size difference is formed, and after the prepared asymmetric porous membrane is treated at the temperature of 50-130 DEG C, the cyclohexane steam response performance of the prepared asymmetric porous membrane is remarkably enhanced, and rapid bending response can be realized within 0.6 s; in other common organic solvent steam such as ethanol, acetone, tetrahydrofuran, methanol and the like, observable deformation response can be generated within 7s.

The invention discloses a stable levocetirizine hydrochloride eye drop composition and a preparation method thereof, and belongs to the field of pharmaceutical preparations. The composition is prepared from levocetirizine hydrochloride, glycerol, polyethylene glycol 400, polysorbate 80, edetate disodium, benzalkonium chloride, hydroxypropyl methylcellulose, sodium dihydrogen phosphate, sodium hydroxide, hydrochloric acid and water. The composition is simple in preparation method, the pH value and osmotic pressure molar concentration of the composition are similar to those of tears, and the composition is free of irritation, good in medication comfort and good in stability during storage.

The invention relates to a preparation method of brimonidine tartrate eye drops, particularly relates to a new technical scheme obtained by adjusting the rotating speed, the temperature and the material adding sequence, and solves the problems of non-uniform content of benzalkonium chloride and dissolution of polyvinyl alcohol. The brimonidine tartrate eye drops prepared by the preparation method disclosed by the invention are uniform in benzalkonium chloride content, clear in liquid medicine, stable in quality, low in requirements on production equipment and suitable for large-scale industrial production.

The preparation process of the sodium hyaluronate eye drops comprises the following steps: S1, firstly adding water for injection under a sterile condition, then sequentially adding sodium chloride, potassium chloride, boric acid, borax, glycerol and benzalkonium chloride, and stirring by a high-shear stirrer to form a solution A; s2, under a sterile condition, firstly adding water for injection, then adding modified sodium hyaluronate, and stirring by a high-shear stirrer to form a solution B; s3, adding the solution B into the solution A under a sterile condition, and stirring by using a high-shear stirrer; s4, adding the residual water for injection, and stirring by a high-shear stirrer to obtain the sodium hyaluronate eye drops; s5, filtering through a sterile filter of 0.22 [mu] m; and S6, sub-packaging into single-dose packaging containers under sterile filling equipment, and sealing the single-dose packaging containers. According to the preparation process of the sodium hyaluronate eye drops, the preservative is introduced, and the sterile preparation technology, sterile filtration and single-dose packaging are adopted, so that the safety is improved, the concentration of the sodium hyaluronate is increased, the glycerol is added, and the use experience of a patient is improved.

The application relates to the technical field of redeveloping and utilizing rare earth tailings, in particular to a ceramsite prepared by mixing metal tailings and steel slag and a method thereof, which comprises the following steps: crushing and grinding the metal tailings and the steel slag into powdery rare earth tailing mixture; performing solid-liquid separation on petroleum drilling slurry to obtain petroleum drilling waste liquid, and then immersing the rare earth tailing mixture in the petroleum drilling waste liquid to obtain immersed liquid and the rare earth tailing mixture after immersion; mixing and stirring the immersed liquid and the rare earth tailing mixture after immersion, industrial waste bricks, Suzhou soil, high-alumina bauxite, fly ash, silica ash, attapulgite, coal gangue, straw waste, industrial phosphoric acid, steel fiber, phosphogypsum, alumina sol, polypropylene fiber, sodium sulfate, citric acid, benzalkonium chloride, bentonite, river sand and graphite powder, homogenizing the mixture, balling and coating the mixture, screening and statically culturing the mixture, and cooking the mixture to obtain the ceramsite. The application can improve the preparation efficiency of the ceramsite and reduce the preparation cost of the ceramsite.

The invention relates to the technical field of defect detection, and discloses a benzalkonium chloride disinfectant bottle surface defect intelligent discrimination system, which comprises the following steps: firstly, collecting a bottle body surface image, extracting a bottle body area to generate a contour, and further determining an outer boundary to obtain a boundary characterization curve; then screening shoulder candidate points in the boundary characterization curve, establishing a local coordinate system at the position, and performing equal-interval sampling along the normal direction of the inner side to form a normal gray section; carrying out extreme point analysis on the section to position a bright peak and upstream and downstream stationary points, and further calculating an intensity geometric correlation index and a width asymmetry index; and finally, fusing the indexes to generate a discrimination index for distinguishing real scratches and liquid film artifacts, and realizing defect positioning based on bright peaks, so that the accuracy and the automation level of defect detection are improved.

Disclosed herein is a method for preparation of a disinfectant formulation, the method comprising steps of obtaining a chlorine dioxide (CIO2) solution by adding a predetermined quantity of sodium chlorite with a predetermined quantity of sodium bisulfate in a first container filled with water, keeping the first container closed for a predetermined period of time, dissolving a predetermined quantity of peracetic acid (PAA) in water in a second container, adding a predetermined quantity of benzalkonium chloride (BAC) to the solution in the second container, and mixing and stirring the solutions of the first and second container to obtain a disinfectant solution.

The invention discloses a compound nysfungin ointment, which comprises an active component, a preservative, a humectant, a thickening agent, a grease matrix and an antibacterial agent, the active component is selected from one or more of self-made mycotoxin, neomycin sulfate, permethrin and triamcinolone acetonide, the preservative is selected from benzalkonium chloride, the humectant is selected from glycerol, the thickening agent is selected from glycerol, and the grease matrix is selected from a grease matrix. The humectant is selected from humectant, the thickening agent is selected from carbomer, the grease matrix is selected from liquid paraffin and / or wool fat, the antibacterial agent is selected from thymol, and the ratio of the humectant to the thickening agent is (2-7): (0.5-3) in parts by mass. By accurately controlling the proportion of the humectant to the thickener, the texture of the ointment can be optimized, so that the skin permeability is improved, the medicine absorption is promoted, the treatment effect is improved, in addition, the form of the ointment can be kept, the active ingredients are prevented from being degraded, and the shelf life of the preparation is prolonged.

The application discloses modified phosphogypsum with mildew-proof and antibacterial properties and a preparation method thereof, and belongs to the field of phosphogypsum mildew-proof and antibacterial treatment. The modified phosphogypsum with mildew-proof and antibacterial properties comprises the following raw materials in percentage by mass: 0.2%-0.5% of water-soluble quaternary ammonium salt bacteriostatic agent, 14%-24% of inorganic alkaline material, 46%-56% of phosphogypsum powder and 29.8%-35.8% of water; wherein the water-soluble quaternary ammonium salt bacteriostatic agent comprises 0.1%-0.3% of benzalkonium chloride and 0.1%-0.3% of cetyltrimethylammonium bromide; the inorganic alkaline material comprises 5%-20% of P.O 42.5 ordinary portland cement and 3%-9% of Ca(OH)2; the amount of the quaternary ammonium salt bacteriostatic agent and the inorganic alkaline material used for reducing the original single-doped modification to achieve the same mildew-proof effect is reduced through synergistic effect, the cost required for phosphogypsum resource treatment is reduced, and meanwhile, the optimal mildew-proof effect can be achieved without affecting the strength of the phosphogypsum.

The invention relates to the technical field of sterilization and antifogging, in particular to a microsphere-based antibacterial and antifogging additive, a preparation method thereof, a multifunctional coating and application. The microsphere-based antibacterial and antifogging additive is a liposome vesicle microsphere, and the liposome vesicle microsphere is prepared from an oil-phase raw material and a water-phase raw material; the oil phase raw material comprises one or more of distearoyl phosphatidylcholine, hydrogenated lecithin and cholesterol; the water-phase raw material is a mixture of polyhexamethylene biguanide, polyethyleneimine and benzalkonium chloride; in the water phase raw material, the content of the polyhexamethylene biguanide is 25wt%-45wt%. By optimizing the formula of the microspheres, the efficiency and effect of killing nucleic acid can be remarkably improved, and the fog-resistant and anti-fog effects are achieved.

The invention relates to the technical field of disinfectants, in particular to environment-control double-layer composite microbe removal microspheres and a preparation method thereof. The environment-control double-layer composite microbe removal microsphere comprises an inner core and a shell wrapping the inner core, the inner core is prepared from water, nano disinfection microspheres and a stabilizer, and the shell is prepared from an organic solvent and polylactic acid; the nano disinfection microspheres are prepared from an oil-phase raw material and a water-phase raw material, the oil phase raw materials comprise hydrogenated lecithin, distearoyl phosphatidylcholine and cholesterol; the water-phase raw materials comprise polyethyleneimine, polyhexamethylene biguanide and benzalkonium chloride. According to the environment-control double-layer composite microbe removal microsphere, through unique structural design, the nanometer disinfection microsphere in the inner core is prepared from specific oil-phase and water-phase raw materials, various pathogens can be effectively killed, and the polylactic acid structure of the shell provides good stability and slow release performance for the microsphere, so that the environment-control double-layer composite microbe removal microsphere has a good application prospect. And the duration of the disinfection effect is prolonged.

The invention discloses a non-irritant multipurpose long-acting degerming liquid, which is prepared from the following ingredients in percentage by mass: 0.1 to 0.5 percent of cationic polymer antibacterial agents, 1 to 4 percent of quaternary ammonium salt surfactants A, 0.5 to 2 percent of quaternary ammonium salt surfactants B, 1.5 to 5 percent of polyhydric alcohol humectants, 0.1 to 2 percent of alcohol solvents, 0.3 to 1 percent of plant natural polyphenols and 0.5 to 2 percent of optional essence. And the balance of deionized water. Wherein the cationic polymer antibacterial agent is preferably selected from polyhexamethylene biguanide hydrochloride (PHMB), and the quaternary ammonium salt surfactant is preferably selected from dodecyl dimethyl benzyl ammonium chloride (DDBAC) and tetradecyl dimethyl benzyl ammonium chloride (TDBAC). The benzalkonium chloride and the PHMB biguanide system are perfectly combined, efficient sterilization and disinfection are achieved, and meanwhile the long-acting antibacterial effect is achieved. The product contains natural plant components such as sugarcane essence, can effectively neutralize acidic peculiar smells such as sweat smell and foot odor, realizes zero irritation, and is especially suitable for people with sensitive skin and alcohol allergy.

The invention discloses a preparation method of eye sustained-release eye drops. The preparation method comprises the following steps: step 1, preparing cyclodextrin microspheres; step 2, preparing cyclodextrin microspheres loaded with atropine sulfate; and step 3, dispersing the atropine sulfate loaded cyclodextrin microspheres obtained in the step 2 in deionized water to obtain a mixed solution, then adding a thickening agent, mannitol and benzalkonium chloride, and stirring at room temperature for 20-30 minutes to obtain the eye sustained-release eye drops. The invention further discloses the eye sustained-release eye drops prepared by the preparation method and application of the eye sustained-release eye drops. The sustained-release eye drops for eyes have the advantages of high stability, high bioavailability, low irritation and controllable release rate.

The present invention provides a disinfectant composition comprising 0.01-5 parts by weight of a compound of formula (I), 1-10 parts by weight of benzalkonium chloride, and the remainder being pure water. By compounding ethylicin and benzalkonium chloride, the present invention can effectively eliminate environmental pathogens at a very low dosage, thereby achieving a good disinfection effect.

The invention relates to a method for preparing a perovskite thin film and a cell based on surface activity and the cell. The method sequentially comprises the following steps: adding a surfactant benzalkonium chloride into a perovskite precursor solution; applying the precursor solution containing benzalkonium chloride to the substrate; treating the precursor solution by adopting a multi-step spin-coating process, wherein airflow assistance or anti-solvent treatment is applied in the spin-coating process; and carrying out annealing treatment on the spin-coated film to obtain the perovskite film. According to the invention, the surfactant BAC is added to change the crystallization kinetics of the precursor ink, and the adhesive force of the perovskite ink to the non-wet charge transport layer of the substrate is increased. Due to the modification treatment of the BAC on the precursor ink, under the driving of the surface tension gradient induced by the surfactant, the existence of the BAC affects the surface tension of the perovskite precursor solution, so that the prepared perovskite thin film is compact in crystallization, the quality of the perovskite thin film is improved, and the charge trap is passivated.