122 results about "Potassium peroxomonosulfate" patented technology

The invention discloses acomposite potassium peroxymonosulfate disinfection tablet which comprises 10.0-70.0 parts by weight of potassium monopersulfate, 1.0-65.0 parts by weight of fillers, 1.0-20.0 parts by weight of adhesives and 0.01-10.0 parts by weight of lubricant, wherein the fillers is formed by one or more then one of sodium sulfate, sodium chloride, potassium chloride, sodium carbonate, sodium bicarbonate, phosphate, inorganic acid, organic acid, starch, dextrin, glucose, solid emulsifier, xylitol and a metal ion complexing agent, the adhesives comprise cellulose, polyvinylpyrrolidone and gelatin; the lubricant is formed by one or more than one of magnesium stearate, talcum powder, micro-powder silica gel, sodium benzoate and polyethylene glycol; in addition, sodium percarbonate, calcium percarbonate, sodium perborate or calcium peroxide 1-2 are added. The invention is convenient to use, has the advantages of quick disintegration and dissolution, can significantly increase the effect of the disinfection tablet and can adjust pH value.

The present invention provides an etching agent composition, metal pattern forming method and array substrate manufacturing method. The etching composition is applied to the single layer film for silver (Ag) or silver alloy, or multilayer films of indium oxide films including the monolayer. The total weight of the etching composition based on the etchant composition comprises: nitric acid 6-8.0wt%; 8-12.0wt%, 8 -10.0wt% sulfuric acid; potassium peroxomonosulfate; organic acid 0.5 -3.0wt%; and balanced water.

The invention provides a low-corrosion potassium peroxymonosulfate disinfector which consists of the ingredients by mass percent: 30-60% of an oxidizing agent, 5-30% of an activating agent, 1-10% of a synergist, 1-10% of a buffering agent, 0.2-2% of a surface active agent, 1-10% of a corrosion inhibitor, 0.1-5% of a chelating agent and 0.001-0.01% of an indicator. The disinfector has high killing capability to microorganisms such as bacteria, fungi and viruses, does no harm to a human body, and cannot cause a potential health risk or harm to an environment; the corrosion inhibitor is added to the disinfector, so that the corrosion of the potassium monopersulfate disinfector to various metals can be reduced effectively; in addition, the indicator is added, so that whether the content of the disinfector can reach a lowest use dosage can be judged visually according to change of a color of the disinfector; and the detection cost during use of the disinfector can be lowered greatly.

An etchant for removing an indium oxide layer includes sulfuric acid as a main oxidizer, an auxiliary oxidizer such as H3PO4, HNO3, CH3COOH, HClO4, H2O2, and a Compound A that is obtained by mixing potassium peroxymonosulfate (2KHSO5), potassium bisulfate (KHSO4), and potassium sulfate (K2SO4) together in the ratio of 5:3:2, an etching inhibitor comprising an ammonium-based material, and water. The etchant may remove desired portions of the indium oxide layer without damage to a photoresist pattern or layers underlying the indium oxide layer.

An etchant for removing an indium oxide layer includes sulfuric acid as a main oxidizer, an auxiliary oxidizer such as H3PO4, HNO3, CH3COOH, HClO4, H2O2, and a Compound A that is obtained by mixing potassium peroxymonosulfate (2KHSO5), potassium bisulfate (KHSO4), and potassium sulfate (K2SO4) together in the ratio of 5:3:2, an etching inhibitor comprising an ammonium-based material, and water. The etchant may remove desired portions of the indium oxide layer without damage to a photoresist pattern or layers underlying the indium oxide layer.

The invention discloses a method for removing elemental mercury in coal-fired flue gas. Removing is carried out in a spray absorber. A prepared absorbent is sprayed from the upper portion of the spray absorber for carrying out spraying on coal-fired flue gas introduced in from a smoke opening in the lower portion of the spray absorber, elemental mercury in the coal-fired flue gas sufficiently reacts with the absorbent, and conversion from the elemental mercury to divalent state mercury is achieved; the absorbent comprises an oxidation additive and a magnetic catalyst which have the mass ratio being 2-5:1, the oxidation additive is any one of or the combination of two or more of potassium peroxymonosulfate, sodium persulfate, sodium perborate and sodium percarbonate, and the catalyst is any one of or the mixture of two or more of bismuth ferrite, cobalt doped bismuth iron acid, cobalt / lanthanum doped bismuth ferrite, cobalt / strontium doped bismuth ferrite, cobalt / rubidium doped bismuth ferrite. The method has the advantages that the absorbent utilization rate is high, the catalyst can be repeatedly used, secondary pollution is avoided, operation is easy and convenient, running is stable, the product is easy to treat, and application and popularization are convenient.

The invention provides a composite water quality improvement agent for aquaculture and a use method of the improvement agent, and relates to the field of water quality improvement. The improvement agent comprises the following raw materials in parts by weight: 13-18 parts of photosynthetic bacterium, 5-10 parts of nitrifying bacterium, 40-60 parts of oyster shell powder, 10-15 parts of composite polypeptide amino acid, 14-18 parts of humic acid, 10-20 parts of composite biological enzyme, 4-10 parts of bacillus subtilis, 8-15 parts of mannitol, 10-20 parts of enterococcus faecalis, 20-40 parts of activated carbon, 15-20 parts of monopotassium phosphate, 20-30 parts of potassium peroxymonosulfate composite salt, 3-7 parts of sodium lignosulphonate, 6-12 parts of saccharomyces boulardii, 10-15 parts of nano improved aluminosilicate, 3-7 parts of clostridium butyricum and 5-10 parts of vitamin. The improvement agent has the advantages of high efficiency, environmental protection and convenience in use, can effectively eliminate pool bottom effluvium, degrades and purifies organic waste and toxin, improves the aquaculture water quality, and improves the quality of an aquatic product.

The invention discloses a cellulose-based composite catalyst for catalyzing persulfate to degrade dye methyl orange and a preparation method of the cellulose-based composite catalyst. The preparation method comprises the following steps: firstly, cobalt (II,III) oxide is supported on graphite oxide, then the cellulose-based composite catalyst is prepared from the graphite oxide supporting the cobalt (II,III) oxide and oxidized cellulose by compositing, finally, PMS (potassium peroxymonosulfate) is added to water containing the methyl orange, pH is regulated, and the cellulose-based composite catalyst is added for degradation. The catalyst can be used at room temperature and has wide application range, a heterogeneous cobalt (II,III) oxide / graphite oxide / oxidized cellulose / PMS catalytic oxidation degradation system has the advantages of high catalytic efficiency, high oxidizing capacity, good reusability and the like, especially the mechanical strength of the catalyst is high, and the catalyst can be settled to wastewater bottom after reaction, is convenient to recover and can be applied to the field of sewage treatment, environmental governance and the like.

The invention relates to the field of preparation of disinfectants and in particular discloses a sodium dichloro isocyanurate disinfection tablet and a preparation method thereof. The sodium dichloro isocyanurate disinfection tablet is characterized by being prepared by mixing the following raw materials in parts by weight according to a certain weight ratio: sodium dichloro isocyanurate, boric acid, peppermint essence, peregal O, malic acid and potassium peroxymonosulfate. The raw materials are rich in source and low in price, the production equipment is low in investment, and the disinfection tablet is capable of killing most of bacteria and viruses influencing the human health, is harmless to the human body, can remove odor and emitting aroma and can be used for daily disinfection.

The invention relates to a processing method for preventing agglomeration of potassium peroxymonosulfate, and belongs to the technical field of preparing inorganic peroxide; wet potassium peroxymonosulfate is added with a surface active agent which is taken as a anti-caking agent in a spraying way, and after drying a magnesium compound which functions as a separant is added in; the surface active agent can be any one of or the mixture of more than one of sodium dodecyl sulfate, sodium alpha-olefin sulfonate, fatty alcohol polyoxyethylene ether, polyoxyethylene polyoxypropylene ether, dodecyl trimethyl ammonium chloride, sodium carboxymethyl cellulose, fatty alcohol polyoxyethylene alkyl ether ammonium sulfate, stearic acid monoglyceride, methyl-silicone oil, nonylphenol ethoxylates, and the like, and the addition amount accounts for 0.05-1% of the weight of the wet potassium peroxymonosulfate. By properly selecting the surface active agent as the anti-caking agent and the magnesium compound as the separant, the processing method has the advantages of simple production technique and easy operation and is suitable for large-scale industrial production.

The invention discloses a modified calcium carbonate of cables. The modified calcium carbonate is prepared from the following raw materials of calcium carbonate, tyrosine, a catalyst, an initiator, potassium peroxymonosulfate, potassium hydrogen phosphate, a bridging agent, a regulator, a crosslinking agent, an accelerant, allyl benzene, a plasticizer, sodium persulfate, hydrosol aluminum hydroxide, activated clay, a compatilizer, a dispersant, ammonium chloride, a smoke suppressor, an ultraviolet absorbent, an optical stabilizer, an anti-aging agent and a stabilizer. The modified calcium carbonate has the advantages that by modifying the calcium carbonate, the problems of hydrophilia and oleophobicity of calcium carbonate, poor dispersivity, easiness in settlement, low mechanical strength, poor compatibility with polymers, failure to achieve an enhancing function and the like are solved, and the application range of the calcium carbonate is increased; the anti-aging, flame-retardant, smoke-eliminating and other functions of the modified calcium carbonate are simultaneously realized.

The invention relates to a method for promoting residual sludge anaerobic fermentation to produce fatty acid through potassium peroxymonosulfate sulfate compound salt (PMS). The method specifically comprises the following steps: (1) treating residual active sludge generated by a secondary sedimentation tank of a municipal sewage treatment plant as a fermentation raw material, and naturally settling to remove liquid supernatant to concentrate and treat to obtain a sludge sample; (2) mixing and pre-treating the sludge sample with potassium peroxymonosulfate sulfate compound salt (PMS), and fermenting under an anaerobic environment to generate fatty acid. After residual sludge is subjected to PMS pretreatment, dissolving of organic substances in sludge is quickened, and activity of acid-consuming microorganisms such as methanogenic bacteria is further inhibited sufficiently, and therefore, the acid yield is greatly increased, and sludge anaerobic fermentation time is shortened; and moreover, the method provided by the invention is simple in operation, and has important environment-friendly ecological significance for reducing, recycling and stabilizing sludge.

The invention discloses a preparation method of potassium peroxymonosulfate. The preparation method comprises following steps: adding a potassium peroxydisulfate solution into a hydrolysis reactor, carrying out hydrolysis under the action of a catalyst to generate potassium peroxymonosulfate and potassium hydrogen sulfate; after the hydrolysis degree reaches the requirement, removing the catalystfrom the solution by a filter, adding the solution into a neutralization reactor, adding a stabilizing agent into the neutralization reactor, then adding potassium hydrogen sulfate solids, stirring, mixing; then adding potassium hydroxide into the neutralization reactor to carry out neutralization reactions; carrying out vacuum concentration, cooling, crystallizing, performing centrifugal separation, and baking to obtain a dry product of potassium peroxymonosulfate. Potassium peroxydisulfate is used to replace high concentration hydrogen peroxide, reacts with fuming sulfuric acid, and is hydrolyzed to generate potassium peroxymonosulfate and potassium hydrogen sulfate under the action of a catalyst; the reactions are mild, the reaction heat is little, the danger of reactions is reduced effectively; under the action of the catalyst, the degree of directional hydrolysis is high, the active oxygen content of products is qualified, and the product quality is stable.

The invention discloses a management method of a eutrophic water body. The management method comprises the following steps: uniformly mixing bacillus subtilis, nitrifying bacteria and denitrifying bacteria according to a certain ratio to prepare a denitrification, dephosphorization and algal inhibition compound microorganism preparation, wherein the content of beneficial bacteria in the denitrification, dephosphorization and algal inhibition compound microorganism preparation is as follows: the content of the bacillus subtilis is greater than or equal to 8.0*10<8>cfu / g, the content of the nitrifying bacteria is greater than or equal to 2.0*10<6>cfu / g and the content of the denitrifying bacteria is greater than or equal to 2.0*10<6>cfu / g; directly and uniformly scattering potassium peroxymonosulfate sulfate compound salt grains into a water body to be managed, and directly scattering according to the dosage of 50 to 1000g / Mu / m, and keeping the water body on an electric potential of 500MV or more; after adding the potassium peroxymonosulfate sulfate compound salt and treating the water body for 12h, directly and uniformly scattering the denitrification, dephosphorization and algal inhibition compound microorganism preparation into the water body to be managed, and directly scattering according to the dosage of 50 to 500g / Mu / m. The preparation is directly added by phases and doesnot need to be aerated; the denitrification, dephosphorization and algal inhibition effect is obvious and water body electric potential balance, bacterium phase balance and algal phase balance and a self-purification capability of the water body is formed.

The invention discloses a method of using sulfite enhanced divalent copper to catalyze persulfate oxidation to degrade organic pollutants. Due to the reducing performance of sulfite, the conversion ofdivalent copper ions into monovalent copper ions is promoted; the yield of sulfate radicals is increased, and the degradation efficiency of organic pollutants is improved. The water treatment comprises following steps: adjusting the pH value to 6-11; adding a certain amount of divalent copper ions into a water sample to be processed, then adding a certain amount of a potassium sulfate solution and a sodium sulfite solution, fully stirring and mixing, and carrying out reactions for 5 to 30 minutes to effectively degrade the organic pollutants. The problems of a conventional divalent copper catalyzed persulfate system such as long start period, low yield of sulfate radicals, a large amount of added divalent copper ions, a large amount of generated sludge, and the like are solved. At the same time, the method has the advantages of high active group yield, good organic pollutant removing efficiency, convenient operation, and low operation cost.

The invention discloses a method for controlling crystallization growth of potassium peroxymonosulfate composite salt. The method comprises the following steps: (1) adding 1-hydroxyethylidene-1,1-diphosphonic acid into a hydrogen peroxide solution, and adding fuming sulfuric acid into the hydrogen peroxide solution to obtain an oxidation solution of peroxymonosulfate; (2) adding the oxidation liquid prepared in the step (1) and potassium carbonate into a neutralization kettle of water or centrifugal mother liquor, and carrying out a neutralization reaction; (3) transferring the reaction solution neutralized in the step (2) into a crystallization kettle, adding a crystal modifier and seed crystal slurry containing potassium peroxymonosulfate composite salt, stirring, cooling and crystallizing; and (4) carrying out solid-liquid separation on the cooled and crystallized material in the step (3), and drying and screening the solid to obtain the potassium peroxymonosulfate composite salt with the particle size of more than 200 meshes. The potassium peroxymonosulfate composite salt prepared by the crystallization method disclosed by the invention is relatively large in particle size andhigh in yield, and has natural moisture absorption resistance and anti-caking property, so that the stability of active oxygen of the product is higher.

The invention relates to a method for removing butyl p-hydroxybenzoate (BHB) by directly activating potassium peroxymonosulfate (PMS) and sodium persulfate (PDS) with layered MoS2. The method includespreparing a BHB target solution having a pH of 3-10 and a concentration of 5 mg / L; changing experiment conditions, adding a certain amount of commercial MoS2 and PMS / PDS to the BHB target solution respectively, and reacting the mixture under stirring. It is found for the first time that: the layered MoS2 can directly activate persulfate under a condition of no external energy and generate activefree radicals (SO<4><->., .OH and O<2><->.) and non-free radicals (1O2) to achieve synergistic oxidation to remove the BHB. The method is simple in process, easy to operate and low in equipment requirement, and the layered MoS2 is cheap and easily available, and has a wide market application potential in the field of treating newly-developing pollutants in water environment.

The invention discloses a flow modifier for polyvinyl chloride. The flow modifier for the polyvinyl chloride is prepared from the following raw materials in part by weight: 20-23 parts of methyl methacrylate, 30-35 parts of butyl acrylate, 0.3-0.5 part of sodium dodecylbenzene sulfonate, 0.3-0.5 part of divinyl benzene, 0.3-0.4 part of potassium peroxymonosulfate, 35-40 parts of nano calcium carbonate, 0.1-0.2 part of sodium stearate, 0.6-0.8 part of polyethylene oxide, 0.4-0.6 part of dimethyl silicone, 3-4 parts of silver nitrate, 11-14 parts of molybdenum sulphide, 8-10 parts of hydroxyethyl starch, 0.5-0.7 part of silane coupling agents kh550 and a defined amount of deionized water. The prepared flow modifier for the PVC (polyvinyl chloride) can be widely used for the field of PVC sections, tubes and plates; properties of impact resistances and high strength of PVC materials can be improved; and the flow modifier for the polyvinyl chloride is worthy of being popularized.

A disinfectant specially used for aquaculture and preparation thereof are provided. The disinfectant includes an A agent and a B agent in a mass ratio of 3:1.2-1.6. The A agent includes tetrakis(hydroxymethyl)phosphonium sulfate, potassium peroxymonosulfate, sodium metaborate, glacial acetic acid and water. The B agent includes a traditional Chinese medicine extract liquid, maifan stone, allicin, citric acid and water. A preparing process is simple. Compared with traditional disinfectants prepared from chlorine, the disinfect prepared by the method is safe and environmentally friendly, has good disinfection effects, improves water quality and growth of aquatic products to a certain extent and increases economic benefit of aquaculture essentially.

The invention discloses a method for treating 6-nitrate wastewater by the aid of electrolysis joint processes. The method includes regulating a pH (potential of hydrogen) value of the 6-nitrate wastewater until the pH value is 6-7; adding polyaluminum chloride and hexadecyl trimethyl ammonium bromide into the 6-nitrate wastewater treating and filtering the 6-nitrate wastewater; further carrying out electro-catalytic oxidation treatment; carrying out joint electro-coagulation and peroxymonosulfate (potassium peroxymonosulfate sulfate) treatment. The method has the advantages that the CODcr (chemical oxygen demand) value of the 6-nitrate wastewater treated by the aid of the method can be reduced from the original 18873 mg / L and reaches 297 mg / L, the color scale of the 6-nitrate wastewater treated by the aid of the method can be reduced from the original 2600-3000 times and reaches 50 times, and the treatment efficiency can be greatly enhanced.

The invention discloses a method of using a AgFeO2 nanomaterial to catalyze persulfate to treat organic wastewater. The method is characterized by including: (1), dropwise adding a AgNO3 solution intoa Fe(NO3)3 9H2O solution; (2), adding alkali liquid to adjust pH to 10-12, stirring for 0.5-2h, standing, and subjecting precipitate to centrifugal water washing and drying and grinding to obtain solid powder; (3), drying the solid powder at 100-150 DEG C for 2-4h to obtain the AgFeO2 nanomaterial; (4), mixing the AgFeO2 nanomaterial with potassium peroxomonosulfate, and putting into the organicwastewater. After the AgFeO2 nanomaterial is put into wastewater, recycling of a catalyst can be realized through simple solid-liquid separation, and the catalytic reaction process does not need external energy and simple in operation. Efficient degradation of organic dye and phenolic wastewater can be realized within a wide pH range.

The invention provides a novel method of treating organic pollutants in waste water through an iron hexacyanocobaltate-H2O2 / PMS Fenton-like process. The method includes adding iron hexacyanocobaltate (Fe-Co PBAs) and H2O2 or potassium peroxymonosulfate (PMS) into the waste water to trigger a Fenton-like reaction so as to generate a large amount of free radicals (hydroxy, superoxide radicals or singlet oxygen) which can be used for degrading the organic pollutants in the waste water. The Fenton-like process (Fe-Co PBAs-H2O2 / PMS) is simple, feasible, capable of recycle and reutilization, and is extremely high in degradation efficiency and mineralization efficiency for the organic pollutants.

The invention discloses a method for preparing a cobalt phosphide / biochar composite material by taking yeast nucleic acid as a phosphorus source and a carbon source. The method comprises the following steps: with nucleic acid extracted from baker's yeast cells through a concentrated salt method as a raw material, firstly mixing the nucleic acid with a cobalt nitrate solution, centrifuging and washing a generated complex precipitate, adding a sodium chloride-potassium chloride mixed salt accounting for 1-10 times the mass of the complex precipitate, conducting uniform grinding, and carrying out calcining in a protective atmosphere of 500-1000 DEG C to obtain the cobalt phosphide / biochar composite material. The material not only can adsorb bisphenol pollutants in a water body, but also can activate a potassium peroxymonosulfate composite salt to effectively degrade the bisphenol pollutants. According to the invention, phosphorus and carbon resources in biomass are recycled; the invention also provides a preparation method of the transition metal phosphide; and efficient removal of bisphenol pollutants in water is realized.

The invention belongs to the technical field of aquiculture, and particularly relates to a method for reducing nitrite in aquiculture water bodies, which includes the following steps: 0.1g / m<3> to 2g / m<3> of citric acid or 0.1g / m<3> to 2g / m<3> of sulfamic acid is used for treating an aquiculture water body, so that the pH value of the aquiculture water body is regulated to 7.5 to 8.0; after an interval of two hours, 0.1g / m<3> to 1g / m<3> of potassium peroxymonosulfate or 0.1g / m<3> to 1g / m<3> of potassium ferrate is used for treating the aquiculture water body; after an interval of three to five hours, 0.1g / m<3> to 1g / m<3> of sodium hypophosphite is used for treating the aquiculture water body. The main components used by the method are chemical substances, the conventional reduction-oxidation reaction is utilized to reduce the content of nitrite, consequently, the situation of poor using effect in oxygen-deficient water bodies which is common at the middle and later stages of aquiculture is prevented, and the denitrification problem of water bodies at the middle and later stages of aquiculture is effectively solved.

The invention provides potassium peroxymonosulfate effervescent granules for aquaculture. By weight, the potassium peroxymonosulfate effervescent granules comprise the following components: 1-50% of potassium peroxymonosulfate, 1-50% of an acidifier, 1-20% of sodium percarbonate, 0.01-0.1% of a releasing agent and 1-50% of sodium sulfate. The potassium peroxymonosulfate effervescent granules have a relatively high response speed and can release more reactive oxygen.

The invention relates to a sediment improving tablet for aquaculture. The sediment improving tablet is prepared from potassium peroxymonosulfate, Fe periodate, sodium bromide, magnesium stearate and an adhesive. A preparation method comprises the following steps: crushing the raw materials, screening the raw materials with a screen of 80 meshes, pouring the powder into a stirrer for full mixing, and preparing the powder into tablets by a tabletting machine by a direct tabletting method, wherein tablet parameters comprise a diameter of 1.0 to 1.2 cm, a tablet weight of 1.0 to 1.2 g and tabletting pressure of 7 to 9 kg / cm<2>. The sediment improving tablet for aquaculture is efficient, long-acting, safe and easy to produce; by a formula and process optimization, the problems of low product stability, short working time and single working effect are solved. The sediment improving tablet is applicable to aquatic water for various aquatic animals and can quickly reach the bottom of the water, so that such harmful substances as heavy metal ions, organic wastes, nitrite and hydrogen sulfide in the water are reduced, the COD of the water is reduced, and the growth of harmful bacteria is suppressed.

The invention relates to the technical field of functional materials and advanced oxidation, and discloses a preparation method of CeO2 / Co3O4 photocatalyst for activating potassium peroxymonosulfate composite salt under driving of visible light. The preparation method comprises the following steps: 1), 2) and 3). The preparation method has the advantages of green and environment-friendly preparation process, simple preparation process, controllable reaction conditions, low cost and the like. A method comprises following steps: mixing cobaltosic oxide modified cerium dioxide p-n heterojunctionphotocatalyst with an initial ciprofloxacin solution; and then adding a proper amount of PMS and carrying out a photocatalytic reaction under an illumination condition so as to realize effective degradation of ciprofloxacin. The situation that ciprofloxacin is difficult to remove from a water body can be effectively avoided, so that the problems that the catalysis time of catalyst on ciprofloxacinis long, the reagent dosage is large, the photon-generated carrier separation efficiency is low and the stability is poor are effectively solved.

The invention discloses composition for degrading dioxane in water and an application of the composition. The composition comprises biochar and potassium persulfate. A method comprises specific stepsas follows: adding biochar to water containing dioxane organic pollutants, wherein the dosage of the biochar is 1.0 g / L and the concentration of dioxane is 1.76 mg / L; adding potassium persulfate withstirring, wherein the concentration of the potassium persulfate is 2.0-16.0 mmol / L. The method has the advantages of high utilization rate of an oxidant, low cost, high degradation rate for dioxane-containing wastewater, environmental friendliness and the like.

The invention discloses an environment-friendly bright pickling agent and a compounding method thereof. Raw materials of the environment-friendly bright pickling agent consist of phosphoric acid, potassium peroxymonosulfate, persulfide, hydrosulfate, stabilizer, oxidant and water. The environment-friendly bright pickling agent is characterized in that the pickling agent is a phosphoric acid / potassium peroxymonosulfate system, the pickling agent is overall in a moderately strong acid environment, the optimum working temperature is 25-37 DEG C, the potassium peroxymonosulfate cooperates with the phosphoric acid, the stabilizer, superoxide and the like for playing a part in performing micro-etching on copper or copper alloy, is small in corrosion amount for a workpiece, uniform in washing speed, and stable and controllable, and has obvious polishing and levelling function for the copper material, the obtained workpiece is high in surface finish degree, and microscopic flatness of the surface of the workpiece after being washed is superior to washing effect of strong acid pickling solutions such as sulfuric acid. Meanwhile, the environment-friendly bright pickling agent has protectionfunction for the surface of the workpiece after being pickled, and overcomes the discoloring problem of the surface of the copper in practical production. Furthermore, the phosphoric acid pickling agent system is colorless and odorless, does not contain volatile substances, is simple in wastewater treatment, and causes low pollution to environment.

The invention discloses a method for degrading glyphosate in water through light assistance single-atom catalysis. The method comprises the following steps of weighing and adding Cu(NO3)2, 2-methylimidazole, PVP and methyl alcohol into an agate bottle, and performing ball milling for 1-5 h to obtain a Cu-imidazole coordination compound; mixing the Cu-imidazole coordination compound and melamine for grinding, screening the mixture through a 200-400-mesh screen, and then placing the mixture into a tube furnace at the nitrogen atmosphere for calcination to obtain a single-atom catalyst Cu-lCC / g-C3N4; weighing sewage containing glyphosate, adding the catalyst, performing stirring under the dark condition for 20-60 min, achieving the adsorption balance, adding potassium peroxymonosulfate sulfate into sewage under xenon lamp irradiation, and performing ultrasonic treatment under the frequency of 50-70 kHz for 1-5 h, wherein the mass ratio of sewage to potassium peroxymonosulfate sulfate is 20:1-30:1. The removal rate for degrading glyphosate through potassium peroxymonosulfate sulfate activation through the light assistance single-atom reaches 90-100%.