556 results about "Persulfate" patented technology

The invention discloses a cobalt-loaded covalent organic framework material as well as a preparation method and application thereof, and belongs to the technical field of catalyst preparation. The cobalt-loaded covalent organic framework material is prepared by taking a carbonized covalent organic framework as a matrix and cobalt nitrate hexahydrate as a cobalt source, reducing by using a sodium borohydride methanol solution, and introducing transition metal cobalt into the framework through room-temperature impregnation and thermal reduction processes. In the material, active components comprise Co0 and Co < 2 + > which are uniformly distributed on a carrier. Moreover, the metal cobalt is stably loaded in a carbon skeleton through the bonding effect of heteroatoms such as nitrogen and carbon, so that the stability, the catalytic activity and the durability of the metal cobalt are effectively improved, the dissolution risk of the metal cobalt is reduced, the hidden danger of environmental pollution is reduced, and efficient catalytic activity is shown in the aspect of catalyzing and activating peroxymonosulfate to degrade organic pollutants; and good recycling stability is achieved.

The presently claimed invention is directed to a bleaching medium comprising at least one phenalenone which is capable of generating singlet oxygen, at least one persulfate salt, at least one alkalizing agent and at least one hydrogen peroxide source and methods for bleaching hair by using the bleaching medium.

The invention discloses a nickel-containing etching wastewater treatment process, which belongs to the technical field of environmental protection, and comprises a raw water regulating tank, a pH pre-regulating tank, a heterogeneous catalytic oxidation tower, a neutralization coagulation tank, an inclined tube sedimentation tank and a clean water tank which are connected in sequence. According to the process, under the neutral condition, a catalyst loaded with cobalt manganese oxide is used for activating sodium hydrogen persulfate, high-activity sulfate free radicals are generated, a Ni-EDTA complex structure is fractured in a targeted mode, free nickel ions are released in situ, organic ligands are synchronously mineralized, and the adding amount of sodium hydrogen persulfate is dynamically adjusted through a clean water pool closed-loop control system; and high-purity nickel hydroxide precipitate is generated through alkaline precipitation and coagulation, so that efficient solid-liquid separation is realized. The treatment process disclosed by the invention is compact in flow and stable in operation, effectively solves the problems of difficult complex breaking, low nickel removal efficiency, high sludge toxicity, difficult resource recovery and the like when the EDTA complex nickel wastewater is treated by a traditional method, realizes closed-loop recovery of nickel resources, and has the remarkable advantages of low cost, high efficiency and environmental friendliness.

The utility model discloses an MVR (mechanical vapor recompression) concentrated solution treatment device, which belongs to the field of wastewater treatment and comprises a first coagulating sedimentation device, a second persulfate advanced oxidation device, a second persulfate adding device for adding persulfate into the second persulfate adding device, a third biochemical treatment device, a fourth membrane treatment component and a fifth clear water tank. Wherein the MVR concentrated solution to be treated can be fed into the first coagulating sedimentation device. The first coagulating agent adding device is connected with the first coagulating sedimentation device, and the first coagulating agent adding device is used for adding a coagulating agent into the first coagulating sedimentation device, so that the MVR concentrated solution is flocculated and settled, and first coagulated sludge and first coagulated supernate are respectively obtained. The method can be suitable for MVR concentrated solution treatment scenes with different scales and treatment requirements, the wastewater treatment efficiency is improved, the treatment cost is reduced, efficient and stable treatment of wastewater can be achieved, and the method has high application value and wide popularization and application value.

The invention relates to the technical field of solid waste treatment and recycling, and discloses a waste incineration fly ash geopolymer composite material and a preparation method thereof, and the composite material is prepared from waste incineration fly ash, apatite minerals, zero-valent iron powder, persulfate and an alkali activator. The preparation method comprises the following steps: mixing the waste incineration fly ash, apatite minerals, zero-valent iron powder and persulfate to obtain composite powder; performing frequency conversion mechanochemical synergistic activation on the composite powder, wherein the activation process comprises a low-temperature activation stage and a high-energy pulse activation stage; and finally, mixing the activated powder with an alkali activator, pouring, molding and curing. According to the method, the reduction reaction and the oxidation reaction are driven step by step in the same system by regulating and controlling the mechanical energy input time sequence, the compatibility problem of a reducing agent and an oxidizing agent is solved, different types of persistent organic pollutants are synergistically degraded, meanwhile, heavy metal is stabilized, and the treatment effect is good. And the fly ash is recycled to prepare a geopolymer material with mechanical properties.

The invention relates to the technical field of iron ore tailing resource utilization, in particular to a method for preparing iron oxide yellow by leaching iron ore tailings through an advanced oxidation technology, which comprises the following steps: adding a required amount of iron ore tailing powder into a persulfate solution, stirring to react, adding a reducing agent, boiling, filtering, adding alkali liquor to adjust the pH value, and filtering, thereby obtaining the iron oxide yellow. Pure liquid containing ferrous ions is obtained; taking part of the pure solution containing ferrous ions, and adding a potassium hydroxide solution to obtain an iron oxide yellow seed crystal solution; adding a pure solution containing ferrous ions into the iron oxide yellow seed crystal solution, adding an alkali solution to adjust the pH value, reacting, and separating and drying a product to obtain the iron oxide yellow. According to the method, the persulfate is adopted to leach iron from the iron ore tailings, and the iron oxide yellow is prepared from the leachate; harmless treatment of the iron ore tailings and value-added utilization of valuable resources are achieved, the raw material source of the iron oxide yellow industry is widened, and a wider prospect is provided for development of iron oxide yellow.

The invention provides a boron-doped carbon nitride-based cobalt monatomic catalyst and a preparation method and application thereof.The boron-doped carbon nitride-based cobalt monatomic catalyst is prepared from a boron-doped carbon nitride material of a lamellar structure, cobalt monatomic and lamellar boron carbon nitride form unique coordination, boron-cobalt lean and rich electron double sites are constructed, persulfate is driven to be subjected to reduction and oxidation reactions at the same time, and the catalyst is prepared. An efficient free radical and non-free radical synergistic system is constructed, and the boron carbon nitride based monatomic catalyst has excellent performance in degradation of carbamazepine and degradation of various organic pollutants.

The invention discloses a preparation method and application of a nano zero-valent iron-zeolite core-shell structure composite material, and relates to the technical field of nano zero-valent iron composite material preparation. A layer of zeolite core-shell structure is generated on the surface of the nano zero-valent iron to prevent iron oxide from being generated on the surface of nZVI to reduce the reaction activity, and meanwhile, the mass ratio of zeolite / zero-valent iron strongly affects gradual release of Fe < 2 + > in the nano zero-valent iron-zeolite core-shell structure composite material, so that iron core oxidation is slowed down, and the reaction activity of nZVI is improved. The release speed of electrons is also slowed down, the gradually released electrons form a long-time and stable activation effect on persulfate, and the degradation of trichlorophenol can be promoted. According to the preparation method and application of the nano zero-valent iron-zeolite core-shell structure composite material, the nano zero-valent iron-zeolite core-shell structure composite material can be obtained.

The invention relates to the technical field of water pollution control and treatment, and particularly discloses a method for deeply treating wastewater based on an adsorbent, which comprises the following steps of: firstly, introducing a mixed gas of carbon dioxide and air into fly ash water washing liquid, and removing calcium ions in the water washing liquid in a calcium carbonate precipitation form in a continuous introducing process; interference of calcium ions on adsorption and electrodialysis processes in the subsequent treatment process is avoided, heavy metals in the water washing liquid are accurately adsorbed and removed while the iron-sulfur loaded magnetic mesoporous biochar is used for activating efficient oxidation of persulfate, finally, electrodialysis treatment is performed on the water washing liquid by using a self-made bipolar membrane, chlorine in water is taken out, and the heavy metals in the water washing liquid are removed. And the washing liquid can meet the requirement of wastewater discharge.

The invention provides an efficient chloramphenicol degradation method based on Co-Cu-carbon composite nano-catalyst activated peroxymonosulfate, which comprises the following steps: regulating the Co / Cu molar ratio in a bimetal organic framework precursor, and performing pyrolysis to prepare the Co-Cu-carbon composite catalyst with an optimized pore structure, graphitization degree and metal dispersity; peroxymonosulfate is activated by utilizing the synergistic effect of Co / Co and Cu / Cu redox pairs to generate sulfate free radicals, hydroxyl free radicals, singlet oxygen and superoxide free radicals, and direct oxidative degradation of chloramphenicol is promoted by taking a catalyst as an electron transfer bridge; the method realizes rapid and efficient removal of chloramphenicol, high mineralization rate, excellent cycle stability and strong anti-interference capability, and solves the technical problems of low removal efficiency, high cost and easy secondary pollution in the prior art.

The invention provides an oxygen vacancy defect carbon nitride anchored iron atom cluster catalyst and a preparation method and application thereof, and belongs to the technical field of catalysts. Iron atoms are anchored in a carbon nitride (Ov-C3N4) structure containing oxygen vacancy defects in a cluster form, and Fe-Ov-C defect bonds are formed between the oxygen vacancy defects in C3N4 and iron atom clusters to stabilize the iron atom clusters, so that the problem of thermodynamic instability of the catalyst is solved while higher atom utilization efficiency is obtained; the Fe-Ov-C defect bond atoms can reasonably regulate and control the electronic structure of the center of an iron cluster d band, so that the catalytic activity and the cycling stability are greatly enhanced; besides, iron atom clusters and persulfate act to cause O-O bond breakage, non-free radical singlet oxygen is formed, and the problem that the catalytic efficiency is sharply reduced due to free radical annihilation in a complex water environment can be effectively solved.

The invention relates to the technical field of oxygen evolution catalysts, in particular to an electrolyzed water oxygen evolution catalyst, room-temperature convenient preparation thereof and application of the electrolyzed water oxygen evolution catalyst to synergistic degradation of wastewater. The electrolytic water oxygen evolution catalyst provided by the invention is prepared from the following components in parts by mole: 3 to 12 parts of thiourea, 2 to 3 parts of foamed ferronickel, 0.12 to 1.3 parts of persulfate and water. According to the formula of the water electrolysis oxygen evolution catalyst provided by the invention, a layer of compact sulfur-nitrogen co-doped ferronickel layered double hydroxide and iron oxyhydroxide are loaded on the surface of foamed ferronickel by utilizing the synergistic effect of persulfate and thiourea, so that the whole water electrolysis oxygen evolution catalyst shows excellent OER performance.

The invention relates to the technical field of sewage treatment, in particular to a composition for degrading triazole bactericides and application of the composition. The invention provides a composition for degrading triazole bactericides. The composition comprises persulfate and a catalyst, the catalyst takes foamed nickel as a carrier and is loaded with a cobalt-nickel layered bimetallic oxide. The cobalt-nickel layered bimetallic oxide is rich in oxygen vacancies, and has a larger specific surface area, higher stability and a higher oxidation reduction rate. In the process of activating sulfate by the cobalt-nickel layered bimetallic oxide, a large amount of free radical sulfate free radical # imgabs0 # superoxide free radical # imgabs1 # and non-free radical singlet oxygen (1O2) are generated, and triazole bactericides are synergistically degraded based on a free radical path and a non-free radical path.

To provide an acidic disinfectant composition and a cleaning sheet that give no influence to a material of a disinfected surface, cause no reduction of active ingredients, and have excellent disinfecting efficacy.SOLUTION: The present invention provides an acidic disinfectant composition that contains: persulfuric acid or a persulfate salt as a component (A); an acid agent including at least one selected from the group consisting of inorganic acid, organic sulfonic acid, and organic phosphonic acid as a component (B); a surfactant as a component (C); and water as a component (D), as well as a cleaning sheet comprising a base material sheet impregnated with the acidic disinfectant composition.SELECTED DRAWING: None

The invention discloses a preparation method of an iron-manganese bimetallic catalytic material by using copper slag. The preparation method comprises two steps of pretreating the copper slag and preparing the iron-manganese bimetallic catalytic material. The iron-manganese bimetallic catalytic material prepared by the method belongs to a porous material, is rich in pores and large in specific surface area, is rich in Fe < 3 + >, Mn < 3 + >, Mn < 4 + > and other active sites on the surface, has the advantages of high catalytic activity, good stability and environmental friendliness, and realizes reduction and high-value utilization of the copper slag. In addition, the prepared iron-manganese bimetallic catalytic material can be used for catalyzing persulfate to form an advanced oxidation system, and is suitable for degradation treatment of organic wastewater such as printing and dyeing wastewater, pharmaceutical wastewater, food wastewater and raffinate.

The invention provides a surface modification method for a lithium-rich manganese-based positive electrode material, which comprises the following steps of: washing by using a peroxide-containing aqueous solution, properly increasing the washing temperature (preferably 40-80 DEG C), regulating the reaction pH value to 1-7, accurately controlling the ratio of acidity to free radical oxidation reaction, and optimizing the interface stability, oxygen vacancy density and Li < + > diffusion rate, thereby obtaining the lithium-rich manganese-based positive electrode material. Meanwhile, the dosage of peroxide (preferably persulfate) is reduced, the reaction time is shortened, the modification efficiency is improved, the raw material consumption is reduced, and the production cost is reduced.

The invention discloses a sewage treatment process for organic wastewater, and belongs to the field of sewage treatment.The sewage treatment process comprises the following steps that S1, wastewater containing nitrogen-containing organic phosphonic acid metal complexes is pumped into a dielectric barrier discharge reactor, and P-C bond energy is reduced through high-energy electron bombardment; s2, adding a modified layered metal hydroxide containing interlayer co-intercalation carbon quantum dots and persulfate and a composite oxidant of aspergillus niger immobilized microspheres into the wastewater subjected to plasma treatment; s3, deeply adsorbing heavy metal ions in the wastewater subjected to composite oxidation treatment in a gradient magnetic field by utilizing a magnetic layered metal hydroxide material; s4, the wastewater subjected to magnetic adsorption sequentially passes through an anaerobic ammonia oxidation coupling reactor and an aerobic biological membrane-activated sludge system to degrade pollutants; s5, dephosphorizing the wastewater subjected to biological treatment by algae by adopting a layered immobilized phycomycete symbiotic system; and S6, tail end magnetic recovery and effluent disinfection. The invention aims to solve the problems of low decomplexing efficiency and halfway decomplexing in the prior art.

The invention relates to the technical field of degradation-resistant organic wastewater treatment, in particular to a cathode and anode type electro-Fenton coupling wastewater treatment device and method.The cathode and anode type electro-Fenton coupling wastewater treatment method comprises the steps that a titanium electrode or a BDD electrode is adopted in an anode module, 0.05-0.5 mol / L sulfate radical serves as electrolyte, and persulfate is electrically synthesized in situ; a cathode module is a porous carbon electrode, and # imgabs0 # is generated through aeration at the speed of 0.5 L / min to 2 L / min; the space between the cathode modules is filled with three-dimensional invasive plant source biochar catalytic particle electrodes, the H-type double-chamber electrolytic tank separates a cathode chamber and an anode chamber through a proton membrane, and the method comprises an intermittent type (firstly adsorbing trace pollutants and then oxidizing, and biochar is renewable) and a continuous type (synchronously adsorbing and degrading high-concentration wastewater, and pretreating to improve biodegradability). The device realizes the cooperation of adsorption and electrocatalytic oxidation, efficiently treats refractory wastewater, promotes the recycling of invasive plants, and has both environmental protection and economic values.

The invention discloses a method for improving the dewatering performance of excess sludge by combining mushroom residue-based ferromagnetic biochar with persulfate, and belongs to the technical field of solid waste treatment. The method comprises the following steps: pyrolyzing mushroom residues at a high temperature to prepare biochar, and loading iron ions on the biochar by adopting a hydrothermal method to obtain a heterogeneous catalyst of persulfate, namely the mushroom residue-based ferromagnetic biochar. The mushroom residue-based ferromagnetic biochar and persulfate are added into the excess sludge, the sludge structure can be destroyed through stirring treatment, the water content can be reduced, and the dewatering performance of the excess sludge can be improved. Compared with traditional catalysts such as transition metal ions, the mushroom residue-based ferromagnetic biochar provided by the invention is combined with persulfate as the catalyst, so that the catalyst is more environmentally friendly, efficient and stable.

The invention discloses a biomass carbon loaded manganese dioxide catalyst as well as a preparation method and application thereof. The biomass carbon loaded manganese dioxide catalyst comprises a carrier and MnO2 loaded on the surface of the carrier, and the carrier is carbonized biomass obtained by performing alkali treatment and hydrogen peroxide treatment on biomass and then carbonizing the biomass in an inert atmosphere. The supported catalyst prepared by the method has proper valence and morphology, a MnO2 mixed phase appears, more oxygen vacancies are generated, generation of free radicals in the activation process of peroxymonosulfate (PMS) is facilitated, PMS can be effectively activated to remove organic pollutants, and the activation efficiency of MnO2 on PMS and the operation stability of MnO2 in a packed column are greatly improved. Compared with a traditional method for adjusting the oxygen vacancy of MnO2, the method for loading the biochar is relatively controllable, simple in mode and low in cost.

The invention provides a method for treating discharge wastewater of a waste lithium battery, which comprises the following steps: S1, pulping a lithium cobalt oxide material by using discharge wastewater, and adding a first oxidant for reaction to obtain primary oxidized slurry; s2, mixing the primary oxidized slurry with high-grade matte nickel, and adding a second oxidizing agent for reaction to obtain secondary oxidized slurry; s3, the secondary oxidation slurry and an iron circulation activating agent are mixed for acid leaching, a liquid phase is taken after solid-liquid separation, and metal leaching liquid containing nickel and cobalt is obtained; wherein the first oxidizing agent comprises persulfate, the second oxidizing agent is selected from hydrogen peroxide, and the iron circulation activating agent is at least one of sodium hydrosulfite or sodium pyrosulfite. According to the method, short-range efficient selective recovery of valuable metals is realized through cooperation of lithium cobalt oxide and high nickel matte, the influence on the environment is greatly reduced, and the economic cost of the process is reduced.

The present invention provides a shield synchronous double liquid grouting material and a preparation method thereof, which belongs to the technical field of shield construction, and includes the following components by mass: 1-5 parts of component A, 0.5-5 parts of component B: wherein component A includes: 40-50 parts of cement, 10-20 parts of fly ash, 10-15 parts of epoxy-modified acrylic emulsion, and 40-50 parts of water; component B includes: 30-45 parts of early strength agent, 5-10 parts of active aluminum hydroxide, 3-15 parts of magnesium fluorosilicate, 2-8 parts of organic amine, 8-12 parts of nano silica sol, 10-20 parts of ammonium persulfate, and 0.5-1 parts of PH regulator. A shield synchronous double liquid grouting material and a preparation method thereof provided by the present invention have the characteristics of low price, excellent performance, small shrinkage, low alkali and environmental friendliness. It can solve the problems that the cement-water glass double liquid slurry consolidation body has a large shrinkage rate; it is easy to disintegrate, and the durability is poor; and the high alkaline material injected into the formation seriously pollutes the groundwater.

The invention discloses a sustainable purification method based on nanobubbles, and relates to the technical field of water treatment. The sustainable purification method based on the nanobubbles comprises the following steps: preparing a nanobubble solution through a nanobubble generator; mixing the nano-bubble solution with hydrogen persulfate to activate the hydrogen persulfate, and promoting decomposition of the hydrogen persulfate on a nano-bubble interface to generate free sulfate radicals; the peroxydisulfate is used for water treatment and purification after being activated. By means of the innovative structural design and the utilization of the characteristics of the nano bubbles, the oxidative degradation efficiency is improved, meanwhile, the purification capacity can be kept as long as several months, low-energy-consumption, pollution-free and sustainable green environment restoration is achieved, and an efficient, environment-friendly and economical new way is provided for water pollution treatment.

The invention discloses a method for oxidation treatment of winery wastewater, and belongs to the technical field of environmental protection. The winery wastewater treatment method comprises the following steps: mixing winery wastewater and persulfate to form a reaction solution, and then carrying out ultrasonic cavitation treatment on the reaction solution to generate hydroxyl free radicals and persulfate free radicals. The treatment method disclosed by the invention has the advantages of simple process, high safety and low cost, and shows a good application prospect in the environmental protection fields such as winery wastewater treatment and similar wastewater treatment.

The invention discloses a preparation method of a two-dimensional layered vermiculite mineral-based nano confinement material and application of the two-dimensional layered vermiculite mineral-based nano confinement material in catalytic degradation of antibiotic pollutants. According to the method, vermiculite minerals, rhodochrosite minerals, tourmaline minerals and sulfur minerals serve as raw materials, the two-dimensional layered vermiculite mineral-based nano confinement mineral material is prepared to serve as a catalyst, persulfate is activated to catalytically degrade antibiotics, the problem of agglomeration of the nano mineral material can be effectively solved, and high degradation efficiency and mineralization rate are achieved. The catalyst is in a nanoscale, and provides a constrained environment for a catalytic reaction system, so that accurate regulation and control of catalytic performance are realized, the efficiency of catalytic reaction is improved, and the problem of low efficiency of catalytic degradation of antibiotics by a current commercially available catalyst is solved. The preparation method is simple, the raw materials are cheap and easy to obtain, and the preparation method is green and environment-friendly and can be industrially applied on a large scale.

The present application discloses a sludge treatment slow-release material and a treatment method, and belongs to the technical field of sludge treatment. A water-soluble coating material forms a slow-release film on the surface of an iron-carbon micro-electrolysis filler, and the slow-release film slowly dissolves in the sludge to slowly release the iron-carbon micro-electrolysis filler. The iron-carbon micro-electrolysis filler undergoes a galvanic cell reaction in the sludge, and the generated divalent iron ions can catalytically activate persulfate to produce persulfate radicals and trivalent iron ions. The persulfate radicals can oxidize nitrogen-containing organic matter, and the trivalent iron ions react with phosphates to generate iron phosphate precipitates; the dissolved water-soluble coating material complexes with heavy metals, thereby achieving the purpose of removing nitrogen-containing organic matter, phosphorus-containing organic matter and heavy metals in the sludge. The slow-release material can slowly release the iron-carbon micro-electrolysis filler, thereby continuously producing stable divalent iron ions, prolonging the active time of persulfate, and then prolonging the treatment time of the slow-release material on the sludge, achieving the purpose of long-term repair.

The invention provides a wastewater treatment method. The wastewater treatment method comprises the following steps: S1, acidifying wastewater, and mixing the acidified wastewater with activated carbon and persulfate for reaction to obtain acidified wastewater; and S2, inserting a cathode plate and an anode plate into the acidified wastewater, and then carrying out electrocatalytic reaction. According to the wastewater treatment method provided by the invention, organic pollutants in wastewater are degraded by coupling three-dimensional electrocatalytic oxidation with persulfate activation until the wastewater reaches the standard and is discharged.

The invention relates to an in-situ dynamic soil and underground water arsenic pollution remediation technology based on an iron arsenate-based material. According to the technology, iron arsenate is generated in situ in a polluted area through the synergistic effect of innovatively designed slow-release ferrite capsules and oxidants such as persulfate, and efficient immobilization of arsenic is achieved. Meanwhile, the electrochemical regulation and control technology and an intelligent monitoring feedback system are fused, the underground water oxidation and reduction conditions are dynamically optimized, the remediation process is precisely regulated and controlled, and the method adapts to the complex polluted environment. The technology has the advantages of being efficient, economical, environmentally friendly, high in intelligent degree and the like, and arsenic pollution in soil and underground water can be effectively remedied.

The invention belongs to the field of waste resource utilization and the field of wastewater treatment, and particularly relates to a preparation method and application of an oil shale semi-coke catalyst, and the preparation method comprises the following steps: crushing, grinding and sieving oil shale semi-coke to obtain oil shale semi-coke powder; dispersing the obtained oil shale semi-coke powder into an activator solution, stirring and reacting at room temperature to activate the oil shale semi-coke powder, and finally centrifuging, washing and drying to obtain the target product oil shale semi-coke catalyst. The oil shale semicoke is a solid residue obtained by destructive distillation of oil shale at 450-600 DEG C under an anaerobic condition. The activating agent solution is one of nitric acid, oxalic acid or phosphoric acid, and the mass concentration of the activating agent solution is 4-32%. According to the invention, the lattice structure and surface element composition of the oil shale semicoke can be adjusted, the specific surface area of the oil shale semicoke is increased, the catalytic activity of the oil shale semicoke is improved, and the removal effect of persulfate on organic matters is improved in a pH range of 4-10.

The invention provides iron-manganese composite oxide modified biochar (FM-SBC) as well as a preparation method and application thereof, and relates to the technical field of modified biochar. The method comprises the following steps: drying, grinding, modifying, drying and pyrolyzing excess sludge of a secondary sedimentation tank of an urban sewage treatment plant, and modifying the excess sludge by using an iron-manganese composite oxide to obtain the iron-manganese composite oxide modified biochar. The iron-manganese composite oxide modified biochar can be used as an efficient catalyst of persulfate (PS), provides technical support for treatment of refractory organic wastewater by enhancing the catalytic effect and enhancing efficient degradation of refractory organic pollutants such as azo dyes, and is of great significance to sustainable development of the environment.